Topic:"Generation Grid Resources" in M08929

............................................................................................................ 35 27 Figure 26: Mersey sustaining forecast .........................................................................................

AI summary The text lists figures related to hydroelectric systems (Mersey, Nictaux, Paradise, Roseway, Sheet Harbour) with sustaining/decommissioning forecasts and system descriptions, focusing on infrastructure planning and operational timelines for these facilities.

MacDonald Pond Falls Lake North Canoe Mockingigh Lake Lake Zwicker Lake South LEGEND: Canoe RESERVOIR Lake DAM (EARTH) DAM SPILLWAY POWERHOUSE Card Lake FISHWAY CONTROL PIPELINE SURGE TANK CATCHMENT AREA = 182.5 km² No. of Stations 2 Gener...

AI summary The document contains a redacted hydro asset study related to the Avon Hydro System, including a map and details about the system's capacity and infrastructure. The information has been marked confidential and is not fully disclosed.

D) LEGEND: Figure 11 RESERVOIR N DAM (EARTH) DAM SPILLWAY POWERHOUSE FISHWAY CONTROL PIPELINE SURGE TANK CANAL Gulch Flowage Ridge Flowage Lake Mulgrave CATCHMENT AREA = 196 km² No. of Stations 2 Generating Units 2 Capacity 11.5 MW 25 Bear...

AI summary The text presents a legend and diagram of the Bear River Hydro System, including components such as the reservoir, dam, powerhouse, and transmission infrastructure, along with details on capacity and catchment area. The document is part of a Hydro Asset Study, with sensitive information redacted.

PIPELINE Salmontail SURGE TANK Lake CANAL (R21) CATCHMENT AREA = 462 km² Black River Hydro System No. of Stations 5 Generating Units 27 6 Capacity 23.0 MW REDACTED (CONFIDENTIAL INFORMATION REMOVED) Hydro Asset Study REDACTED

AI summary The document contains a redacted section of a Hydro Asset Study related to the Black River Hydro System, which includes details about the system's infrastructure, such as the Salmontail Surge Tank, Lake R21, and the canal. The system comprises 5 stations, 27 generating units, and has a capacity of 23.0 MW. The catchment area is 462 km².

Figure 17 LEGEND: N RESERVOIR DAM SPILLWAY POWERHOUSE PIPELINE Tom Lake SURGE TANK Donahue Lake CATCHMENT AREA = 45.4 km² No. of Stations 2 Generating Units 2 Capacity 1.8 MW Dickie Brook Hydro System 29 REDACTED (CONFIDENTIAL INFORMATION...

AI summary The text presents a redacted section of a Hydro Asset Study, which includes a diagram of the Dickie Brook Hydro System with details about its reservoir, powerhouse, and other infrastructure, along with technical specifications such as catchment area and generating capacity.

RESERVOIR DAM (EARTH) DAM SPILLWAY POWERHOUSE FISHWAY CONTROL PIPELINE Miller Lake CATCHMENT AREA = 42.6 km² No. of Stations 2 Generating Units 2 Fall River Hydro System Capacity 0.5 MW 31 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Hydro...

AI summary The text describes the Miller Lake hydroelectric facility, including its components such as the dam, spillway, powerhouse, and fishway control, along with details about its catchment area, number of stations, generating units, and capacity. The Fall River Hydro System has a capacity of 0.5 MW.

N LEGEND: RESERVOIR Long DAM (EARTH) Lake DAM SPILLWAY FISHWAY CONTROL PIPELINE Alma Croker Lake Lakes Mistake Lake Henry Lake Medway Lake M ed w ay CATCHMENT AREA = 312 km² No. of Stations 1 Ri Generating Units 1 ve Capacity 0.6 MW r Dean...

AI summary The text provides a legend and partial information about the Harmony Hydro System, including details about reservoirs, dams, lakes, and generating units. It also mentions a catchment area and the capacity of the system. The document is redacted, indicating that some confidential information has been removed.

33 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Hydro Asset Study REDACTED 1 3.7 Lequille Hydroelectric System 2 3 The Lequille hydro system, built in 1968, has one powerhouse with a unit rated for 11 4 MW. The system is shown in Figure 25E...

AI summary The document discusses the Lequille hydro system, a 1968-built facility with one powerhouse and an 11 MW rating. It includes sustaining capital and operating costs, as well as decommissioning costs covering removal, sedimentation, environmental considerations, and archaeology. The system includes three reservoirs, two dams, and a canal.

RESERVOIR DAM (EARTH) N DAM SPILLWAY POWERHOUSE PIPELINE SURGE TANK CANAL DAM (TIMBER/ROCK) Grand Lake Flowage Dargie Lake Grand Lake CATCHMENT AREA = 127 km² No. of Stations 1 Generating Units 1 LeQuille Hydro System Capacity 12.5 MW 35 R...

AI summary The text describes the LeQuille Hydro System, including its components such as the dam, powerhouse, and pipeline, along with details about its capacity and location. It also mentions a redacted hydro asset study, indicating sensitive information has been removed.

LOWER LAKE FALLS CATCHMENT AREA = 1996 km² Sixth UPPER LAKE FALLS BIG FALLS Lake No. of Stations 6 M e Silver rs Lake e Generating Units y 12 R Capacity i 42.0 MW ve r LOWER GREAT BROOK DEEP BROOK Jordan Lake COWIE FALLS

AI summary The text outlines a hydroelectric generation site with details on the catchment area, number of stations, generating units, and capacity. It also mentions several locations and water bodies related to the hydroelectric system.

Lake Shannon Lake McGill Lake CATCHMENT AREA = 259.72 km² Big Molly Upsim Lake No. of Stations 1 Generating Units 1 Capacity 8.2 MW Nictaux Hydro System 39 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Hydro Asset Study REDACTED

AI summary The text describes the Nictaux Hydro System, including details about its catchment area, generating units, and capacity. It also references a Hydro Asset Study, though much of the content is redacted as confidential information.

AM (EARTH) DAM SPILLWAY POWERHOUSE PIPELINE CANAL N Saunders DAM (TIMBER/ROCK) Pond RESERVOIR STORAGE PUMP Paradise Lake Dalhousie Lake Corbett Lake CATCHMENT AREA = 117 km² No. of Stations 1 Generating Units 2 Capacity 5.3 MW Paradise Hyd...

AI summary The text describes the Paradise Hydro System, including its components such as the dam, powerhouse, pipeline, and reservoir, along with details about its capacity and location. A redacted section indicates that confidential information has been removed from the Hydro Asset Study.

ay No. of Stations 1 Ri Generating Units 2 ve r Capacity 1.0 MW 43 Roseway Hydro System REDACTED (CONFIDENTIAL INFORMATION REMOVED) Hydro Asset Study REDACTED

AI summary The text references a Hydro Asset Study related to the Roseway Hydro System, including information about the number of stations and generating units, though much of the content is redacted as confidential.

Marshall Falls DAM (TIMBER/ROCK) Flowage MARSHALL FALLS Sheet Harbour Hydro System MALAY FALLS Ruth Falls Flowage CATCHMENT AREA = 570.6 km² No. of Stations 2 RUTH FALLS Generating Units 6 Capacity 10.0 MW 45 REDACTED (CONFIDENTIAL INFORMA...

AI summary The text presents a redacted section of a Hydro Asset Study related to the Marshall Falls and Sheet Harbour Hydro System, including details about the catchment area, number of stations, generating units, and capacity. The document is marked as confidential and contains redacted information.

45 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Hydro Asset Study REDACTED 1 3.13 Sissiboo Hydroelectric System 2 3 The Sissiboo hydro system has a maximum rated capacity of 28.2 MW and is shown in 4 Figure 42. Water from Fifth Lake generat...

AI summary The text discusses the Sissiboo Hydroelectric System, which has a maximum capacity of 28.2 MW and includes details about its water flow and infrastructure. It also provides sustaining capital and decommissioning cost forecasts, citing NS Power and various reports.

Figure 42 LEGEND: RESERVOIR DAM (EARTH) DAM SPILLWAY N POWERHOUSE Big Tom Wallace Lake PIPELINE SURGE TANK Sissiboo Falls Big Uniacke Weymouth Falls Lake Sissiboo Grand Lake Fifth Lake Fourth Lake CATCHMENT AREA = 568 km² No. of Stations 3...

AI summary Figure 42 provides a visual representation of a hydroelectric facility, including components such as reservoirs, dams, spillways, powerhouses, and pipelines. It lists key details such as the number of stations, generating units, and total capacity of 28.0 MW. The catchment area is noted as 568 km².

ENT AREA = 568 km² No. of Stations 3 Generating Units 4 Capacity 28.0 MW Sissiboo Hydro System 47 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Hydro Asset Study REDACTED

AI summary The document provides a brief overview of the Sissiboo Hydro System, including details such as the area, number of stations, generating units, and capacity. However, the content is partially redacted, indicating the presence of confidential information.

48 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Figure 45 N Five Mile Lake Pockwock Lake (HRM) Big Indian LEGEND: Lake RESERVOIR DAM (EARTH) DAM SPILLWAY POWERHOUSE FISHWAY CONTROL Wrights Lake PIPELINE Sandy SURGE TANK Lake Coon Pond Mill...

AI summary The document includes a redacted figure depicting the St. Margarets Bay Hydro System, which includes various lakes, reservoirs, dams, and generating units. The system has a capacity of 10.0 MW and covers a catchment area of 271 km² with 2 stations and 6 generating units.

lrace Outlet McMillan Flowage CATCHMENT AREA = 222 km² No. of Stations 2 Generating Units 3 Capacity 215.8 MW 53 Wreck Cove Hydro System REDACTED (CONFIDENTIAL INFORMATION REMOVED) Hydro Asset Study REDACTED

AI summary The document discusses a hydro asset study related to the Wreck Cove Hydro System, which includes details about the McMillan Flowage catchment area, number of stations, generating units, and capacity. The text is partially redacted due to confidentiality.

Wreck Cove Hydro System REDACTED (CONFIDENTIAL INFORMATION REMOVED) Hydro Asset Study REDACTED

AI summary The document discusses a Hydro Asset Study related to the Wreck Cove Hydro System, with confidential information redacted. It does not provide specific details on the study's findings or implications.

e reservoir for industrial activities, known archeological issues and information available on the nature of the sediments contained in the reservoir. Systems Decommissioning estimates were prepared for the entire NSPI portfolio of hydroel...

AI summary The text discusses the decommissioning estimates for NSPI's hydroelectric assets and provides details about the Annapolis Tidal Power Facility, including its location, capacity, and operational structure.

electricity. As illustrated in Figure 7, one reservoir and two head ponds, three dam and associated wing dams and spillways and one canal that provide water to the powerhouses. H357345-00000-200-230-0001, Rev. 0, Page 12 Ver: 04.03 © Hatch...

AI summary The text describes a hydroelectric infrastructure setup, including reservoirs, head ponds, dams, spillways, and canals that supply water to powerhouses. It references a specific document (H357345-00000-200-230-0001) and includes a redacted section indicating confidential information has been removed.

Project Management Sturctures H357345 NSPI's Hydro System Decommissioning Cost Estimate 2.7 The Black River Hydroelectric System The Black River Hydroelectric System was constructed in central Nova Scotia starting in 1919 and continued aga...

AI summary The text discusses the Black River Hydroelectric System in Nova Scotia, including its construction history, components such as power stations, reservoirs, and fishways, and its capacity to produce up to 23.8 MW of electricity. It also references a decommissioning cost estimate and a redacted appendix.

Details of the structures included in the assessments are listed in Table 4. Table 4: Summary of Structures Assessed for the Black River Hydroelectric System

AI summary The text references Table 4, which provides a summary of structures assessed for the Black River Hydroelectric System. No specific details or arguments are discussed in the provided text.

EĂŵĞ WĞƌŝŵĞƚĞƌ;ĨƚͿ ^ƵƌĨĂĐĞƌĞĂ;^ƋŵŝͿ dŽŵΖƐ>ĂŬĞ ϭϮϭϱϱ Ϭ͘Ϯϳ ŽŶĂŚƵĞ>ĂŬĞ ϮϵϰϬϬ ϭ͘ϰϭ LEGEND 0 0.4 0.8 1.6 Legend Project: Hydro System Decommissioning Cost Estimate Km  Water Control Structures 1:40,000 Figure Title: Dickie Brook Hydro...

AI summary The text presents a map and legend related to the Hydro System Decommissioning Cost Estimate for the Dickie Brook Hydro System, including data sources such as UTM NAD 83 Zone 20, Esri WMS, Bing, and SRTM DEM. Nova Scotia Power Inc. is identified as the project owner, with the date July 25, 2018.

Details of the structures included in the assessments are listed in Table 5. Table 5: Summary of Structures Assessed for the Dickie Brook Hydroelectric System Exposed Exposed Reservoir Height Length Canal Area Area Structure (ft.) (ft.) (m...

AI summary The text provides a summary of structures assessed for the Dickie Brook Hydroelectric System, including details such as height, length, and areas related to dams, spillways, and intake structures.

way/Canal 16 656 Donahue Lake Wing Dam 9.5 475 2.9 The Fall River Hydroelectric System The Fall River Hydroelectric System’s wing dams were constructed in central Nova Scotia in the 1920s. The remainder of the system was constructed in 198...

AI summary The document discusses the Fall River Hydroelectric System, including its construction history and capacity. It also references a decommissioning cost estimate for NSPI control structures, as part of a project management report.

125 144,288 Miller Lake Dam and Spillway 15.7 268 732,482 2.10 The Harmony Hydroelectric System The Harmony Hydroelectric System was constructed in southeastern Nova Scotia in 1943. It consists of a single powerhouse capable of producing u...

AI summary The text discusses the Harmony Hydroelectric System in Nova Scotia, constructed in 1943 and capable of producing 700 kW of electricity. It includes details about the system's components and mentions a decommissioning cost estimate for NSPI's hydro structures.

Project Management Sturctures H357345 NSPI's Hydro System Decommissioning Cost Estimate Details of the structures associated with the Harmony system are listed in Table 7. Table 7: Summary of Structures Associated with the Harmony Hydroele...

AI summary The document provides details about the Harmony Hydroelectric System's structures, including the main dam, spillway, and intake structures, as well as information about the Lequille Hydroelectric System, which was built in 1968 and has a power station with a capacity of 13.1 MW.

based on water https://earthdata.nasa.gov polygons, Nova Scotia open data. Overall these Figure Title: Lequille Hydro System Watercourse perimters are larger than that shown in satellite imagery and may reflect full supply level. Waterbody...

AI summary The document contains a redacted section of a hydro asset study related to the Lequille Hydro System, including a figure titled 'Lequille Hydro System' with information about watercourse and waterbody polygons, and a reference to Nova Scotia Power Inc. and the date August 21, 2018.

Project Management Sturctures H357345 NSPI's Hydro System Decommissioning Cost Estimate 2.12 The Mersey Hydroelectric System Most of the Mersey Hydroelectric System was constructed in southwestern Nova Scotia in 1928 and 1929, construction...

AI summary The document discusses the Mersey Hydroelectric System, constructed in the 1920s and 1950s, with six powerhouses capable of producing up to 45.6 MW of electricity. It includes details about the system's infrastructure, such as reservoirs, dams, and fishways.

Details of the structures associated with the Harmony system are listed in Table 9. Table 9: Summary of Structures Associated with the Mersey Hydroelectric System Height Length Structure (ft.) (ft.) Upper Lake Falls Left Wing Dam 22 600 Up...

AI summary The text provides a table listing the structures associated with the Mersey Hydroelectric System, including their heights and lengths. This information is part of a regulatory proceeding document.

9.8 571 Sixth Lake Outlet Weir 4.6 66 2.13 The Nictaux Hydroelectric System The Nictaux Hydroelectric System was constructed in northwestern Nova Scotia between 1954 and 1956. The system consists of a single power station capable of produc...

AI summary The document provides details about the Nictaux Hydroelectric System, including its construction period, location, and components such as power stations, reservoirs, dams, and canals. It also references a specific document version and copyright information.

LEGEND 0 0.5 1 2 Km Project: Hydro System Decommissioning Cost Estimate 1:50,000  Water Control Structures Figure Title: Nictaux River Hydro System Waterbody Data Sources: 1. Spatial referencing UTM NAD 83 Zone 20 2. Image Sources: Esri W...

AI summary The document presents a map and legend related to the Hydro System Decommissioning Cost Estimate for the Nictaux River Hydro System, created by Nova Scotia Power Inc. on July 25, 2018. It includes data sources, spatial referencing, and image sources used in the map creation.

Details of the structures included in the assessments are listed in Table 10. Table 10: Summary of Structures Assessed for the Nictaux Hydroelectric System Exposed Exposed Reservoir Height Length Canal Area Area Structure (ft.) (ft.) (m2)...

AI summary The text provides a table listing the structures assessed for the Nictaux Hydroelectric System, including details such as height, length, and area for each structure.

Project Management Sturctures H357345 NSPI's Hydro System Decommissioning Cost Estimate Exposed Exposed Reservoir Height Length Canal Area Area Structure (ft.) (ft.) (m2) (m2) Nictaux Canal Embankment 60 17,160 129,400 n/a 2.14 The Paradis...

AI summary The document discusses the decommissioning cost estimate for NSPI's Hydro System, specifically focusing on the Nictaux Canal Embankment and the Paradise Hydroelectric System in northwestern Nova Scotia, which was built in the 1980s and has a capacity of 4.8 MW.

Details of the structures included in the assessments are listed in Table 11. Table 11: Summary of Structures Assessed for the Paradise Hydroelectric System Exposed Exposed Height Length Canal Area Reservoir Area Structure (ft.) (ft.) (m2)...

AI summary The text provides a summary of structures assessed for the Paradise Hydroelectric System, including details such as height, length, and areas of exposed canal and reservoir for each structure.

Project Management Sturctures H357345 NSPI's Hydro System Decommissioning Cost Estimate 2.15 The Sheet Harbour Hydroelectric System The Sheet Harbour Hydroelectric System was constructed in southeastern Nova Scotia in the 1920s. It is a sy...

AI summary The document discusses the Sheet Harbour Hydroelectric System in Nova Scotia, constructed in the 1920s, consisting of two power stations with a capacity of 10.5 MW, along with associated infrastructure such as reservoirs, dams, canals, and fishways.

Details of the structures included in the assessments are listed in Table 13. Table 12: Summary of Structures Assessed for the Sheet Harbour Hydroelectric System Exposed Exposed Reservoir Height Length Canal Area Area Structure (ft.) (ft.)...

AI summary The text provides a table detailing the structures assessed for the Sheet Harbour Hydroelectric System, including their dimensions and areas. The table includes information on dams, spillways, canals, and other related infrastructure.

Project Management Sturctures H357345 NSPI's Hydro System Decommissioning Cost Estimate Exposed Exposed Reservoir Height Length Canal Area Area Structure (ft.) (ft.) (m2) (m2) Marshall Falls Main Dam and Spillway 28 1,390 5,909,009 Governo...

AI summary The text discusses the decommissioning cost estimate for NSPI's Hydro System, including details about specific structures such as dams and spillways. It also provides information about the Sissiboo Hydroelectric System, including its construction dates, capacity, and components like reservoirs and power stations.

electricity. As illustrated in Figure 27, five reservoirs and associated spillways and five dams and associated wing dams and intakes provide water to the powerhouses. H357345-00000-200-230-0001, Rev. 0, Page 40 Ver: 04.03 © Hatch 2018 All...

AI summary The text describes the hydroelectric infrastructure in Nova Scotia, including five reservoirs, spillways, dams, wing dams, and intakes that provide water to powerhouses. It also includes a reference to a redacted document titled 'Hydro Asset Study Appendix B' and a page number.

 ive  R Grand Lake   Spillway (Timber) Fourth Lake Fifth Plant Lake   Fourth Lake Main Dam Fourth Lake

AI summary The text presents a visual representation of a hydroelectric infrastructure project, including elements such as Grand Lake, Fourth Lake, Fifth Lake, and associated structures like the Spillway (Timber) and Main Dam. It appears to be a map or diagram related to a water management or energy generation site.

https://earthdata.nasa.gov polygons, Nova Scotia open data. Overall these Figure Title: Sissiboo Hydro System Waterbody perimters are larger than that shown in satellite imagery and may reflect full supply level. Nova Scotia Power Inc. Dat...

AI summary This document contains a map titled 'Sissiboo Hydro System' with information related to waterbody polygons and perimeters, as well as a reference to a hydro asset study. It is associated with Nova Scotia Power Inc. and includes a date and version information.

REDACTED Hydro Asset Study Appendix B Page 55 of 110 Digby 7 6 8 Tiverton 7 610 E Weymouth 1 m m -2D 7 6 1 Sissiboo Main Dam Sissiboo Plant   Weymouth Falls Intake

AI summary The text includes a redacted page from a Hydro Asset Study, featuring a map or diagram with locations such as Digby, Tiverton, Weymouth, and Sissiboo Main Dam, along with labels and symbols indicating infrastructure or measurements.

Weymouth Falls Intake Weymouth Office Weymouth Falls Main Dam Weymouth Plant       Weymouth Falls Wing Dam Weymouth Spillway Sissiboo River

AI summary The text presents a diagram and location details of the Weymouth Falls hydroelectric facility, including key structures such as the intake, main dam, spillway, and plant, along with the Sissiboo River.

Details of the structures included in the assessments are listed in Table 13. Table 13: Summary of Structures Assessed for the Sissiboo Hydroelectric System Exposed Exposed Height Length Canal Area Reservoir Area Structure (ft.) (ft.) (m2)...

AI summary The text provides a table listing the structures assessed for the Sissiboo Hydroelectric System, including details such as height, length, and area for each structure.

3 Park 7 63 m 0 0.275 0.55 1.1 Km 1:28,000 LEGEND Data Sources: Hydro System Decommissioning Cost Estimate Legend 1. Spatial referencing UTM NAD 83 Zone 20 Project: Nova Scotia Power Inc. 2. Image Sources: Esri Topo WMS, Delorme Dam Locati...

AI summary The text includes a map legend and data sources for a hydro system decommissioning cost estimate related to the St. Margarets Bay Hydro System, with Nova Scotia Power Inc. identified as the project owner.

Km >ŝƚƚůĞ/ŶĚŝĂŶ>ĂŬĞ Ϭ͘Ϭϲ 1:22,000 LEGEND Data Sources: Hydro System Decommissioning Cost Estimate Legend 1. Spatial referencing UTM NAD 83 Zone 20 Project: Nova Scotia Power Inc. 2. Image Sources: Esri Topo WMS, Delorme Dam Location SRTM...

AI summary The document provides a map and legend related to the decommissioning cost estimate of the St. Margarets Bay Hydro System, prepared by Nova Scotia Power Inc. on August 21, 2018. It includes data sources and spatial referencing details.

in Table 14. Table 14: Summary of Structures Associated with the St. Margaret’s Bay Hydroelectric System Height Length Structure (ft.) (ft.) Coon Pond Dam and Spillway 32 408 Sandy Lake Dam and Spillway 50.5 1,021 Big Indian Spillway 25.1...

AI summary Table 14 provides a summary of the structures associated with the St. Margaret’s Bay Hydroelectric System, including details on various dams and spillways with their respective heights and lengths.

0 Control Structure Mill Lake Dam (Tidewater) 20 830 2.18 The Tusket Hydroelectric System The Tusket Hydroelectric System was constructed at the south-eastern tip of Nova Scotia from 1929 to 1930. It consists of a single generating station...

AI summary The document describes the Tusket Hydroelectric System, constructed between 1929 and 1930 in southeastern Nova Scotia, with a generating capacity of 2.7 MW. The system includes four reservoirs, five dams, a canal, and fishways.

Main Dam & Spillway Tusket Fish Ladder   Powerhouse  Dam

AI summary The text describes a hydroelectric facility, including features such as the main dam, spillway, fish ladder, powerhouse, and dam, located in the Tusket area.

Project Management Sturctures H357345 NSPI's Hydro System Decommissioning Cost Estimate A schematic of the system is provided in Figure 32. Figure 32: Schematic of the Tusket Generating System Details of the structures associated with the...

AI summary The text outlines the structures associated with the Tusket Hydroelectric System, including details such as the height, length, and exposed canal area for each structure, as part of NSPI's Hydro System Decommissioning Cost Estimate.

reat Barren Lake Dam and Spillway 18.8 1,196 Mink Lake Dam/Spillway 7.8 112 2.19 The Wreck Cove Hydroelectric System The Wreck Cove Hydroelectric System was constructed near the north-western tip of Nova Scotia between 1975 and 1980. The s...

AI summary The text describes the Wreck Cove Hydroelectric System, located in Nova Scotia, constructed between 1975 and 1980. It includes two power stations with a capacity of 223.5 MW and details the system's infrastructure, such as reservoirs, dams, spillways, and canals.

polygons, Nova Scotia open data. Overall these Figure Title: Wreck Cove Hydro System Waterbody perimters are larger than that shown in satellite imagery and may reflect full supply level. Watercourse Nova Scotia Power Inc. Date:August 21 2...

AI summary The text references a map titled 'Wreck Cove Hydro System' created by Nova Scotia Power Inc. on August 21, 2018, and includes a document path and a redacted section from a hydro asset study. The map's perimeter is noted to be larger than satellite imagery and may reflect full supply levels.

polygons, Nova Scotia open data. Overall these Figure Title: Wreck Cove Hydro System Waterbody perimters are larger than that shown in satellite imagery and may reflect full supply level. Watercourse Nova Scotia Power Inc. Date:August 21 2...

AI summary The text includes a figure titled 'Wreck Cove Hydro System' with information about waterbody perimeters and a reference to Nova Scotia Power Inc. It also mentions a document path and a redacted section of a hydro asset study.

Details of the structures included in the assessments are listed in Table 16. Table 16: Summary of Structures Assessed for the Wreck Cove Hydroelectric System Exposed Exposed Height Length Canal Area Reservoir Area Structure (ft.) (ft.) (m...

AI summary The text provides a table listing the structures assessed for the Wreck Cove Hydroelectric System, including details such as height, length, and areas of canals and reservoirs for each structure.

ŝƐƐŝŽŶŝŶŐĞdžĞƌĐŝƐĞŝŶĐůƵĚĞďƵŝůĚŝŶŐĚĞŵŽůŝƚŝŽŶĂŶĚ ƌĞůĂƚĞĚŵĂƚĞƌŝĂůƐĚŝƐƉŽƐĂů͕ĂŶĚƐŝƚĞƉƌŽƚĞĐƚŝŽŶĂŶĚƌĞŵĞĚŝĂƚŝŽŶƉŽƐƚĚĞŵŽůŝƚŝŽŶ͘      ϵϱ     REDACTED (CONFIDENTIAL INFORMATION REMOVED) REDACTED Hydro Asset Study Appendix C P...

AI summary The text contains redacted information from a Hydro Asset Study Appendix, which discusses various aspects of asset management and infrastructure planning. It includes details related to the evaluation of hydroelectric assets and their impact on energy generation and grid reliability.

ůĂƐƐŝĨŝĐĂƚŝŽŶʹĂƚĞŐŽƌLJ͕ƌĞŝŶĨŽƌĐĞĚĐŽŶĐƌĞƚĞĂŶĚƐƚƌƵĐƚƵƌĂůƐƚĞĞů͖ x KƵƚůĞƚ;ƌĂĨƚͲƚƵďĞͿůĂƐƐŝĨŝĐĂƚŝŽŶʹĂƚĞŐŽƌLJ͕ƚŚĞĚƌĂĨƚƚƵďĞƐĚŝƐĐŚĂƌŐĞĚŝƌĞĐƚůLJŝŶƚŽƚŚĞ ĂƐƚZŝǀĞƌŽĨ ^ŚĞĞƚ,ĂƌďŽƵƌ͘    ϵϲ     REDACTED (CONFIDENTIAL...

AI summary The text discusses a hydro asset study and related appendices, focusing on the evaluation of hydroelectric assets and their implications for energy generation and management. It addresses the assessment of asset performance, potential improvements, and associated financial and operational considerations.

Industrial and Power Projects: x For Nova Scotia Power Inc.: Engineering design, evaluation, construction cost estimates derivation and construction management for implementation of improvements and repairs to hydroelectric assets includin...

AI summary The document outlines various engineering and infrastructure projects related to hydroelectric assets in Nova Scotia, including design, construction management, and environmental remediation efforts for Nova Scotia Power Inc. and other entities. It highlights specific projects such as the rehabilitation of Parson’s Dam and dam safety reviews.

x Design of replacement pipeline and penstock for Berwick Electric’s hydroelectric generating station. x Design of remediations and repairs to Middle River dam and sluiceway for the Nova Scotia Department of Transportation and Infrastructu...

AI summary The text outlines various engineering projects and services provided for hydroelectric and thermal generation stations across Nova Scotia and Newfoundland and Labrador, including design, remediation, and maintenance work for infrastructure such as dams, powerhouses, and intake systems.

R INC. ‐ HYDRO PRODUCTION ANNAPOLIS TIDAL POWER GENERATION STATION POWERHOUSE DEMOLITION STUDY

AI summary The document discusses the demolition study for the powerhouse at the Annapolis Tidal Power Generation Station, likely involving considerations related to infrastructure planning and generation resources.

NOVA SCOTIA POWER INC. ‐ HYDRO PRODUCTION ANNAPOLIS TIDAL POWER GENERATION STATION POWERHOUSE DEMOLITION STUDY

AI summary The document outlines a study related to the demolition of the powerhouse at the Annapolis Tidal Power Generation Station by Nova Scotia Power Inc., focusing on hydro production.

Introduction The following pages and attachments represent an estimate of demolition costs associated with conceptual powerhouse decommissioning plans for the Annapolis Tidal Power Generation Station.

AI summary The text introduces an estimate of demolition costs linked to conceptual powerhouse decommissioning plans for the Annapolis Tidal Power Generation Station.

ge 6 of 25 NOVA SCOTIA POWER INC. ‐ HYDRO PRODUCTION ANNAPOLIS TIDAL POWER GENERATION STATION POWERHOUSE DEMOLITION STUDY

AI summary The document discusses the Powerhouse Demolition Study for the Annapolis Tidal Power Generation Station owned by Nova Scotia Power Inc. The study focuses on the demolition of the powerhouse and its implications.

8 of 25 NOVA SCOTIA POWER INC. ‐ HYDRO PRODUCTION ANNAPOLIS TIDAL POWER GENERATION STATION POWERHOUSE DEMOLITION STUDY

AI summary The document outlines a study concerning the demolition of the powerhouse at the Annapolis Tidal Power Generation Station owned by Nova Scotia Power Inc.

9 of 25 NOVA SCOTIA POWER INC. ‐ HYDRO PRODUCTION ANNAPOLIS TIDAL POWER GENERATION STATION POWERHOUSE DEMOLITION STUDY

AI summary The document outlines a study related to the demolition of the powerhouse at the Annapolis Tidal Power Generation Station owned by Nova Scotia Power Inc.

NOVA SCOTIA POWER INC. ‐ HYDRO PRODUCTION ANNAPOLIS TIDAL POWER GENERATION STATION POWERHOUSE DEMOLITION STUDY

AI summary The document outlines a study related to the demolition of the powerhouse at the Annapolis Tidal Power Generation Station, owned by Nova Scotia Power Inc. It focuses on hydro production and the associated infrastructure considerations.

8 REDACTED (CONFIDENTIAL INFORMATION REMOVED) REDACTED Hydro Asset Study Appendix D Page 12 of 25 NOVA SCOTIA POWER INC. ‐ HYDRO PRODUCTION ANNAPOLIS TIDAL POWER GENERATION STATION POWERHOUSE DEMOLITION STUDY

AI summary The document outlines a study regarding the demolition of the powerhouse at the Annapolis Tidal Power Generation Station owned by Nova Scotia Power Inc.

NOVA SCOTIA POWER INC. ‐ HYDRO PRODUCTION ANNAPOLIS TIDAL POWER GENERATION STATION POWERHOUSE DEMOLITION STUDY

AI summary The document outlines a study related to the demolition of the powerhouse at the Annapolis Tidal Power Generation Station, owned by Nova Scotia Power Inc.

NOVA SCOTIA POWER INC. ‐ HYDRO PRODUCTION ANNAPOLIS TIDAL POWER GENERATION STATION POWERHOUSE DEMOLITION STUDY

AI summary The document pertains to a study on the demolition of the Powerhouse at the Annapolis Tidal Power Generation Station by Nova Scotia Power Inc., focusing on hydro production.

NOVA SCOTIA POWER INC. ‐ HYDRO PRODUCTION ANNAPOLIS TIDAL POWER GENERATION STATION POWERHOUSE DEMOLITION STUDY

AI summary The document outlines a study related to the demolition of the powerhouse at the Annapolis Tidal Power Generation Station owned by Nova Scotia Power Inc.

NOVA SCOTIA POWER INC. ‐ HYDRO PRODUCTION ANNAPOLIS TIDAL POWER GENERATION STATION POWERHOUSE DEMOLITION STUDY

AI summary The document outlines a study related to the demolition of the powerhouse at the Annapolis Tidal Power Generation Station owned by Nova Scotia Power Inc.

NOVA SCOTIA POWER INC. ‐ HYDRO PRODUCTION ANNAPOLIS TIDAL POWER GENERATION STATION POWERHOUSE DEMOLITION STUDY A fully registered member of Engineers Nova Scotia (formerly the Association of Professional Engineers of Nova Scotia) since 198...

AI summary This section provides the professional background of James B. Yates, a senior structural/civil engineer with extensive experience in engineering and professional associations, including his work with Nova Scotia Power Inc. and various engineering firms.

 Design of replacement pipeline and penstock for Berwick Electric’s hydroelectric generating station.  Design of remediations and repairs to Middle River dam and sluiceway for the Nova Scotia Department of Transportation and Infrastructu...

AI summary The text outlines various engineering projects and services provided by different organizations, including the design and maintenance of infrastructure for hydroelectric and thermal generation stations, as well as remediation and repair work for dams and related structures across Nova Scotia and Newfoundland and Labrador.

Road Network Water Features Mapped Stream Mapped Indefinite Stream Mapped Lakes and Rivers South Canoe Lake NS Power Inc. - Avon Hydro System Engineering Surveying Environmental Bedford Antigonish Moncton Deer Lake

AI summary The text includes a map of a road network and water features, such as lakes and rivers, with references to 'South Canoe Lake' and 'NS Power Inc. - Avon Hydro System.' It also lists locations and services provided by NS Power Inc., including engineering, surveying, and environmental services in various locations.

Hydro Asset Study Appendix E Page 17 of 163 Notes: ¯ 11 10 9 1. Data Sources: NS Power Inc., NSTD, GeoNOVA, Geogratis. 2. Projection: NAD83 UTM Zone 20N Legend: 6 7 8 Avon Hydro System Wetland within 50 m of lake

AI summary This document provides a map and legend related to the Avon Hydro System, including data sources and a projection reference. It includes a legend indicating the location of wetlands within 50 meters of a lake.

apped Indefinite Stream Mapped Lakes and Rivers NS Power Inc. - Bear River Hydro System B ranch Bear R East ive r Gulch He Engineering Surveying Environmental

AI summary The text references the Bear River Hydro System managed by NS Power Inc., along with geographical features like mapped lakes, rivers, and the Gulch He. It also mentions engineering, surveying, and environmental activities related to the system.

Salt Marsh Swamp Water Transportation Road Network Water Features Mapped Stream Mapped Indefinite Stream Mapped Lakes and Rivers NS Power Inc. - Bear River Hydro System Charlotte Lake Gulch He Engineering Surveying Environmental

AI summary The text contains a map with various geographical features and a reference to NS Power Inc.'s Bear River Hydro System, along with other engineering and environmental-related terms.

Salt Marsh Swamp Water Transportation Road Network Water Features Mapped Stream Mapped Indefinite Stream Mapped Lakes and Rivers Lake Mulgrave NS Power Inc. - Hill Bear River Lake Hydro System

AI summary The text includes a map with various geographical features such as salt marshes, swamps, lakes, rivers, and transportation networks. It also references 'NS Power Inc.' and 'Bear River Hydro System', indicating involvement in energy infrastructure.

Swamp Water Transportation Road Network Water Features Mapped Stream Mapped Indefinite Stream Mapped Lakes and Rivers NS Power Inc. - Bear River Hydro System Engineering Surveying Environmental Bedford Antigonish Moncton Deer Lake

AI summary The text includes a map legend with categories such as water, transportation, and road networks, and mentions the NS Power Inc. Bear River Hydro System, along with engineering and surveying locations in Bedford, Antigonish, Moncton, and Deer Lake.

Swamp Water Transportation Road Network Water Features Mapped Stream Mapped Indefinite Stream Fletcher Mapped Lakes and Rivers Lake NS Power Inc. - Fall River Hydro System Engineering Surveying Environmental Bedford Antigonish Moncton Deer...

AI summary The text includes a map with various geographical features such as water bodies, transportation routes, and a road network. It also references 'NS Power Inc. - Fall River Hydro System' and lists locations like Bedford, Antigonish, Moncton, and Deer Lake, along with engineering, surveying, and environmental services.

Charles Water Lake Transportation Road Network Water Features Mapped Stream Mapped Indefinite Stream Mapped Lakes and Rivers NS Power Inc. - Fall River Hydro System Loon Lake Topsoil Lake

AI summary The text appears to be a map or geographical representation showing various features such as water bodies, transportation routes, and land features in the Fall River Hydro System area, with references to Nova Scotia Power Inc.

apped Indefinite Stream Mapped Lakes and Rivers NS Power Inc. - Harmony Hydro System Round Lake Engineering Surveying Environmental Bedford Antigonish Moncton Deer Lake Date: Project #: July 2018 18-6450 Scale: Map Index: 1:30,000

AI summary The document appears to be a map or engineering survey related to the Harmony Hydro System, produced by NS Power Inc. in July 2018 with project number 18-6450. The map includes locations such as Round Lake and is scaled at 1:30,000.

Mapped Indefinite Stream Mapped Lakes and Rivers NS Power Inc. - Harmony ke Hydro System a erL iv ntR sa ea Pl Engineering Surveying Environmental Bedford Antigonish Moncton Deer Lake

AI summary The text appears to be a map or visual representation of a hydro system, likely related to Nova Scotia Power Inc. It includes geographic elements such as lakes, rivers, and locations like Bedford, Antigonish, Moncton, and Deer Lake. The document also lists engineering, surveying, and environmental services provided by NS Power Inc.

Mapped Indefinite Stream Mapped Lakes and Rivers NS Power Inc. - Harmony Hydro System Pl ea sa nt Ri ve r Engineering Surveying Environmental Bedford Antigonish Moncton Deer Lake

AI summary The text references a mapped indefinite stream and mapped lakes and rivers, with a focus on the Harmony Hydro System operated by NS Power Inc. It includes locations such as Bedford, Antigonish, Moncton, and Deer Lake, and mentions engineering, surveying, and environmental services.

ped Indefinite Stream Mapped Lakes and Rivers L ake an nch Me NS Power Inc. - Harmony Hydro System Russell Lake Second Christopher Lake Engineering Surveying Environmental Bedford Antigonish Moncton Deer Lake

AI summary The text includes a map of lakes and rivers in Nova Scotia, with references to the Harmony Hydro System and engineering, surveying, and environmental services provided by NS Power Inc. in locations such as Bedford, Antigonish, Moncton, and Deer Lake.

ndefinite Stream Mapped Lakes and Rivers Me wad yR NS Power Inc. - ive Harmony r Hydro System First Christopher Lake St. Mary Bay

AI summary The text appears to be a map or diagram showing geographical features and entities related to Nova Scotia Power Inc., including lakes, rivers, and possibly infrastructure such as the Harmony Hydro System.

m Mapped Lakes and Rivers NS Power Inc. - Harmony Black Rattle Lake Hydro System Annis Lake Beavertail Basin Engineering Surveying Environmental Bedford Antigonish Moncton Deer Lake

AI summary The text provides a map of lakes and rivers in Nova Scotia, specifically highlighting Black Rattle Lake and Annis Lake, along with the Harmony Hydro System. It also lists locations such as Bedford, Antigonish, Moncton, and Deer Lake, and mentions engineering, surveying, and environmental services offered by NS Power Inc.

efinite Stream Mapped Lakes and Rivers NS Power Inc. - Harmony Hydro System Med w ay R iver Engineering Surveying Environmental Bedford Antigonish Moncton Deer Lake

AI summary The text includes a map of water bodies and mentions NS Power Inc. and the Harmony Hydro System, along with locations such as Bedford, Antigonish, Moncton, and Deer Lake, and services offered by Engineering, Surveying, and Environmental.

finite Stream Mapped Lakes and Rivers NS Power Inc. - Harmony Hydro System Upper L ittle Salters Went Lake w orth Lake Engineering Surveying Environmental Bedford Antigonish Moncton Deer Lake

AI summary The text includes a map of water bodies and mentions NS Power Inc. and the Harmony Hydro System, along with locations such as Bedford, Antigonish, Moncton, and Deer Lake. It also lists engineering, surveying, and environmental services provided.

ake Mapped Lakes and Rivers NS Power Inc. - Harmony Sheep Hydro System Lake Island Hell Lake Lake Engineering Surveying Environmental Bedford Antigonish Moncton Deer Lake

AI summary The text includes a map of lakes and rivers, as well as information about the Harmony Hydro System and NS Power Inc. It also lists locations such as Bedford, Antigonish, Moncton, and Deer Lake, along with services offered by Engineering, Surveying, and Environmental.

ke Mapped Indefinite Stream Mapped Lakes and Rivers NS Power Inc. - Lequille Hydro System Grand Lake Engineering Surveying Environmental Bedford Antigonish Moncton Deer Lake Date: Project #: July 2018 18-6450 Scale: Map Index: 1:30,000

AI summary The text provides a map index and project details related to the Lequille Hydro System by NS Power Inc., including location information, scale, and project number.

Indefinite Stream Mapped Lakes and Rivers NS Power Inc. - Mersey Hydro System Lake Rossignol Engineering Surveying Environmental She Bedford Antigonish Moncton Deer Lake Date: Project #: lb u July 2018 18-6450 rne

AI summary The text provides a map and project details related to the Mersey Hydro System managed by NS Power Inc., including locations such as Lake Rossignol and project information dated July 2018 with project number 18-6450.

4 8 12 16 Salt Marsh Kilometres Swamp Water Transportation Road Network Water Features Mapped Stream Mapped Indefinite Stream Mapped Lakes and Rivers NS Power Inc. - Mersey Hydro System

AI summary The text includes a map with various geographical features and a reference to the Mersey Hydro System operated by NS Power Inc., indicating a focus on infrastructure and energy resources in the region.

Mapped Indefinite Stream Mapped Lakes and Rivers NS Power Inc. - Mersey Hydro System Engineering Surveying Environmental Bedford Antigonish Moncton Deer Lake Date: Project #: July 2018 18-6450 Scale: Map Index: 1:30,000

AI summary The text presents a map titled 'Mapped Indefinite Stream' and 'Mapped Lakes and Rivers' associated with the Mersey Hydro System operated by NS Power Inc. The map includes locations such as Bedford, Antigonish, Moncton, and Deer Lake, with details like the date (July 2018) and project number (18-6450).

iv e Swamp r Water Transportation Road Network Water Features Mapped Stream Mapped Indefinite Stream Mapped Lakes and Rivers NS Power Inc. - Mersey Hydro System

AI summary The text includes a map with various geographic features and mentions the Mersey Hydro System operated by NS Power Inc., indicating a focus on infrastructure and energy generation in the region.

Mapped Indefinite Stream Mapped Lakes and Rivers ldto mb Wi NS Power Inc. - Nictaux Hydro System Engineering Surveying Environmental Bedford Antigonish Moncton Deer Lake Date: Project #: July 2018 18-6450 Nic ta Scale: Map Index: ux R 1:30...

AI summary This document appears to be a map related to the Nictaux Hydro System, created by NS Power Inc. in July 2018, with project number 18-6450. It includes locations such as Bedford, Antigonish, Moncton, and Deer Lake, and is scaled at 1:30,000.

Mapped Indefinite Stream Mapped Lakes and Rivers NS Power Inc. - Nictaux Hydro System Nic ta ux R iver Engineering Surveying Environmental Bedford Antigonish Moncton Deer Lake Date: Project #: July 2018 18-6450 Scale: Map Index: 1:30,000

AI summary The document is a map related to the Nicataux River hydro system, prepared by NS Power Inc. in July 2018, with project number 18-6450 and scale 1:30,000. It includes locations such as Bedford, Antigonish, Moncton, and Deer Lake.

Mapped Lakes and Rivers An NS Power Inc. - k Paradise roo Hydro System eB rad is Pa n Brook oh L it tle J Engineering Surveying Environmental Bedford Antigonish Moncton Deer Lake Date: Project #:

AI summary The text appears to be a map or project plan related to the Paradise Hydro System, involving engineering, surveying, and environmental services in locations such as Bedford, Antigonish, Moncton, and Deer Lake. It includes a project number and date, but no specific details are provided.

Bog or Fen Fen er Marsh Salt Marsh Swamp Water Transportation Road Network Water Features Mapped Stream Mapped Indefinite Stream Mapped Lakes and Rivers NS Power Inc. - Roseway Hydro System

AI summary The text includes a list of geographical features and a mention of the Roseway Hydro System operated by NS Power Inc., indicating the presence of a hydroelectric facility in the area.

Mapped Indefinite Stream Mapped Lakes and Rivers Twelv Abraham Lake eM ile St NS Power Inc. - Sheet Harbour Hydro System ream Engineering Surveying Environmental Bedford Antigonish Moncton Deer Lake

AI summary The text presents a map of water bodies and infrastructure related to Nova Scotia Power Inc., including lakes, rivers, and the Sheet Harbour Hydro System. It includes locations such as Bedford, Antigonish, Moncton, and Deer Lake, along with engineering and environmental services provided by the company.

e St rea Mapped Lakes and Rivers m NS Power Inc. - Sheet Harbour Hydro System Lake Mulgrave Ma rs Engineering Surveying Environmental ha Bedford Antigonish Moncton Deer Lake

AI summary The text references NS Power Inc. and its Sheet Harbour Hydro System, with a map showing Lake Mulgrave and other locations such as Bedford, Antigonish, Moncton, and Deer Lake. It also includes references to engineering, surveying, and environmental services.

oR Water Features ibo s Mapped Stream Sis Mapped Indefinite Stream Mapped Lakes and Rivers Sissiboo River NS Power Inc. - Sissiboo Hydro System Engineering Surveying Environmental Bedford Antigonish Moncton Deer Lake

AI summary The text includes maps and diagrams related to water features, specifically mentioning the Sissiboo River and the Sissiboo Hydro System operated by NS Power Inc. It also lists locations such as Bedford, Antigonish, Moncton, and Deer Lake, and references engineering, surveying, and environmental services.

Indefinite Stream Mapped Lakes and Rivers NS Power Inc. - Sissiboo Hydro System Engineering Surveying Environmental Bedford Antigonish Moncton Deer Lake Date: Project #: July 2018 18-6450 Scale: Map Index: ke 1:30,000 ¯ La

AI summary This document appears to be a map or engineering survey related to the Sissiboo Hydro System, likely prepared by NS Power Inc. in July 2018 with project number 18-6450. It includes geographic information about lakes and rivers, as well as locations such as Bedford, Antigonish, Moncton, and Deer Lake.

Mapped Stream n ra Mapped Indefinite Stream eB ac Mapped Lakes and Rivers ll Wa NS Power Inc. - Sissiboo Hydro System Engineering Surveying Environmental Bedford Antigonish Moncton Deer Lake

AI summary The text outlines various mapped streams, including the Mapped Indefinite Stream and Mapped Lakes and Rivers, associated with NS Power Inc.'s Sissiboo Hydro System. It also lists locations such as Bedford, Antigonish, Moncton, and Deer Lake, and mentions engineering, surveying, and environmental services related to the hydro system.

ch an Br ce la al W NS Power Inc. - Sissiboo Hydro System er Riv boo i Siss

AI summary The text references the Sissiboo Hydro System operated by NS Power Inc., indicating a focus on a specific hydroelectric infrastructure project in Nova Scotia.

Ri Mapped Indefinite Stream oo s ib Mapped Lakes and Rivers Sis NS Power Inc. - Sissiboo Hydro System e ak tL os Engineering Surveying Environmental ov Bedford Antigonish Moncton Deer Lake Pr

AI summary The text appears to be a map or diagram related to the Sissiboo Hydro System operated by NS Power Inc., with locations such as Bedford, Antigonish, Moncton, and Deer Lake mentioned. It includes engineering, surveying, and environmental components.

Hydro Asset Study Appendix E Page 120 of 163 Notes: ¯ 3 Fourth Lake 1. Data Sources: NS Power Inc., NSTD, GeoNOVA, Geogratis. 2. Projection: NAD83 UTM Zone 20N 2 Legend: 4 Sissiboo Hydro System 8 5 Wetland within 50 m 1 of lake 7 10 11 Wet...

AI summary The text provides a map legend and data sources for a hydro asset study, including geographic information related to the Fourth Lake and the Sissiboo Hydro System. It references wetland proximity to lakes and rivers and lists organizations involved in the data collection.

Mapped Lakes and Rivers NS Power Inc. - Sissiboo Hydro System

AI summary The text references the 'Mapped Lakes and Rivers' and mentions 'NS Power Inc.' and 'Sissiboo Hydro System,' indicating a potential discussion related to hydroelectric resources or infrastructure in Nova Scotia.

Sissiboo Hydro System

AI summary The text mentions 'Sissiboo Hydro System,' which appears to be a specific hydroelectric system, though no further details are provided in the chunk.

oo Transportation k Road Network Water Features Mapped Stream Mapped Indefinite Stream Mapped Lakes and Rivers NS Power Inc. - St. Margarets Bay Hydro System Sa nd yB ro k o

AI summary The text includes a map with transportation, road network, water features, and a hydro system operated by NS Power Inc. in St. Margarets Bay.

Mapped Lakes and Rivers ket ver Ri NS Power Inc. - Tusket Hydro System Wallubek Lake Engineering Surveying Environmental Bedford Antigonish Moncton Deer Lake

AI summary The text references the Tusket Hydro System and Wallubek Lake, with associated engineering, surveying, and environmental services provided by NS Power Inc. in locations such as Bedford, Antigonish, Moncton, and Deer Lake.

Canoe Lake Lake e NS Power Inc. - Tus Tusket ket Hydro System Rive r Engineering Surveying Environmental Bedford Antigonish Moncton Deer Lake

AI summary The text includes a heading with the name 'Canoe Lake' and 'Lake,' followed by a series of seemingly unrelated terms and company names, including 'NS Power Inc. - Tusket Hydro System' and locations such as 'Bedford, Antigonish, Moncton, Deer Lake.' It also includes terms related to engineering, surveying, and environmental services.

Hydro Asset Study Appendix E Page 139 of 163 Notes: ¯ 1 2 3 1. Data Sources: NS Power Inc., NSTD, GeoNOVA, Geogratis. 2. Projection: NAD83 UTM Zone 20N

AI summary The text provides notes related to a hydro asset study, including data sources such as NS Power Inc., NSTD, GeoNOVA, and Geogratis, and a projection based on NAD83 UTM Zone 20N.

Mapped Indefinite Stream Mapped Lakes and Rivers NS Power Inc. - Tusket Hydro System Shunacadie Lake Engineering Surveying Environmental Bedford Antigonish Moncton Deer Lake Date: Project #: July 2018 18-6450 Scale: Map Index: 1:30,000

AI summary The document is a map related to the Tusket Hydro System, showing mapped lakes and rivers, and includes information about the project date, number, and scale. It is associated with NS Power Inc. and includes locations such as Shunacadie Lake and engineering offices in Bedford, Antigonish, Moncton, and Deer Lake.

Road Network Water Features r Mapped Stream Mapped Indefinite Stream Mapped Lakes and Rivers NS Power Inc. - Tusket Hydro System Engineering Surveying Environmental Bedford Antigonish Moncton Deer Lake

AI summary The text includes a map of road networks and water features, along with references to the NS Power Inc. Tusket Hydro System and engineering services provided by Bedford, Antigonish, Moncton, and Deer Lake.

Mapped Indefinite Stream Mapped Lakes and Rivers NS Power Inc. - Wreck Cove Hydro System Ingonish I Engineering Surveying Environmental Reservoir Bedford Antigonish Moncton Deer Lake Date: Project #: July 2018 18-6450 Scale: Map Index: 1:3...

AI summary The document presents a map of hydro systems operated by NS Power Inc., including the Wreck Cove Hydro System and the Ingonish I Reservoir. It includes engineering, surveying, and environmental details related to locations such as Bedford, Antigonish, Moncton, and Deer Lake, with a project number and date of July 2018.

Mapped Indefinite Stream Mapped Lakes and Rivers In dian Br oo k NS Power Inc. - Wreck Cove Hydro System Gisborne Reservoir Engineering Surveying Environmental Bedford Antigonish Moncton Deer Lake

AI summary The text presents a map showing the Mapped Indefinite Stream, Mapped Lakes and Rivers, and the Indian Brook. It also indicates the location of the NS Power Inc. - Wreck Cove Hydro System and mentions engineering, surveying, and environmental services provided in Bedford, Antigonish, Moncton, and Deer Lake.

Marsh Salt Marsh Kilometres Swamp Water Transportation Road Network Water Features Mapped Stream Mapped Indefinite Stream Mapped Lakes and Rivers NS Power Inc. - Wreck Cove Hydro System Engineering Surveying Environmental Bedford Antigonis...

AI summary The text includes a map and related geographic features, such as salt marshes, swamps, water bodies, and transportation networks, along with references to Nova Scotia Power Inc.'s Wreck Cove Hydro System and engineering services provided by various locations.

ouse Hydro System Compensation Cost Hydrosystem Water Body Wetland Area (ha) Wetland Area (ha) Size Analysis Price Estimate

AI summary The text presents a table with information related to a hydro system, including compensation costs, water bodies, wetland areas, and price estimates. The table includes columns such as 'Wetland Area (ha)', 'Size', 'Analysis', and 'Price Estimate'.

ons - Tusket ................................................. 105 Table 18: Summary of costings for individual asset locations – Wreck Cove ....................................... 111 APPRENDIX A – Master List of Assets .....................

AI summary NSPI owns and operates 33 hydroelectric plants across Nova Scotia, totaling 400 MW. The document outlines a desk-based archaeological assessment to identify potential archaeological costs associated with the removal of these hydroelectric facilities.

vice (NRIS) wind projects are assumed to have a firm capacity contribution of 17% as detailed in Section 7.3.1. 6 https://www.npcc.org/Standards/Directories/Forms/Public%20List.aspx DATE FILED: July 2, 2019 Page 12 of 67 2019 Ten-Year Syst...

AI summary The document discusses reductions in Lingan 2's net operating capacity from 153 MW to 148 MW due to an internal steam path restriction, with NS Power not planning to restore it before retirement in 2020. It references MOD-025-2 for generator verification and highlights a 195 MW DSM firm peak reduction in the 2019 Ten-Year System Outlook.

uly 2, 2019 Page 19 of 67 2019 Ten-Year System Outlook NON-CONFIDENTIAL 1 factor determination rather than the only consideration as it would have been in 2 the past. 3 4 • Service hours have become a more important factor to consider with...

AI summary The document discusses the importance of service hours and unit cycles in determining the capacity factor of generating units, especially with the increased use of variable-intermittent generation. It highlights that traditional models may underestimate the required investment and that factors like service hours and unit cycles significantly impact equipment failure and maintenance needs.

1 While the UF rating provides a directional understanding of the future use of each 2 generating unit, the practice of applying it has another layer of sophistication as system 3 parameters change. NS Power utilizes the Plexos dispatch op...

AI summary The text discusses NS Power's use of the utilization factor (UF) in forecasting sustaining investments for generating units, highlighting the use of the Plexos model and how different asset classes are affected by the UF and other factors. It emphasizes maintaining unit reliability while minimizing undepreciated capital.

for this unit as an alternative to the sustaining capital investment. 13 14 15 16 17 11 M08059, Synapse Final Report, Generation Utilization and Optimization, May 1, 2018, page 57. DATE FILED: July 2, 2019 Page 24 of 67 2019 Ten-Year Syste...

AI summary The document outlines the Steam Fleet Retirement Outlook as part of the 2019 Ten-Year System Outlook, referencing a report from Synapse on Generation Utilization and Optimization dated May 1, 2018, and filed on July 2, 2019.

Nameplace Capacity Company/Location (MW) IR #426 NRIS Verson of existing 64MW (IR 219, which was ERIS) Biomass N/A IR #516 Tidal in Cumberland County 5.0 IR #517 Tidal in Cumberland County 4.0 IR #540 Wind in Hants County 14.1 IR #542 Tida...

AI summary The document outlines various capacity projects in Nova Scotia, including biomass, tidal, and wind energy initiatives, with total capacities ranging from 4.0 MW to 63.8 MW gross. It also mentions the conversion of an existing ERIS resource to NRIS following system upgrades expected to be completed in 2019.

classifications each of which is governed by the NS Power System Design Criteria. The 29 criteria require the overall adequacy and security of the interconnected power system to 30 be maintained following a fault on and disconnection of an...

AI summary The document discusses the NS Power System Design Criteria, emphasizing the need to maintain the overall adequacy and security of the interconnected power system after a fault and disconnection of any single component. It is part of the 2019 Ten-Year System Outlook.

2019 Page 52 of 67 2019 Ten-Year System Outlook NON-CONFIDENTIAL 1 8.2.1 Bulk Power System (BPS) 2 3 The NS Power bulk transmission system is planned, designed and operated in accordance 4 with North American Electric Reliability Corporati...

AI summary The document discusses the planning, design, and operation of NS Power’s bulk transmission system in accordance with NERC standards and NPCC criteria. It outlines the adoption of the NERC BES definition and the NS Exception Procedure, which were approved by a Board order in April 2017.

2019 Page 55 of 67 2019 Ten-Year System Outlook NON-CONFIDENTIAL

AI summary The 2019 Ten-Year System Outlook provides a non-confidential overview of the power system planning and forecasting for the next decade, highlighting key considerations and projections for the Bulk Electric System.

Page 57 of 67 2019 Ten-Year System Outlook NON-CONFIDENTIAL

AI summary This document provides a non-confidential overview of the 2019 Ten-Year System Outlook, focusing on long-term planning and projections for the electricity system.

019 Page 59 of 67 2019 Ten-Year System Outlook NON-CONFIDENTIAL

AI summary The document outlines the 2019 Ten-Year System Outlook, providing a non-confidential overview of the future direction and planning for the electricity system in Nova Scotia.

. 28 29 Update: An assessment has concluded that the generators at Victoria Junction and 30 Burnside do not require sequence-of-events and fault recording capabilities. They DATE FILED: July 2, 2019 Page 63 of 67 2019 Ten-Year System Outlo...

AI summary An assessment has concluded that the generators at Victoria Junction and Burnside do not require sequence-of-events and fault recording capabilities. This is part of the 2019 Ten-Year System Outlook document.

9 Page 63 of 67 2019 Ten-Year System Outlook NON-CONFIDENTIAL

AI summary The document presents the 2019 Ten-Year System Outlook, providing a non-confidential overview of the Bulk Electric System (BES) and related planning efforts for Nova Scotia's electricity infrastructure.

IRP Update Appendix 1 Page 43 of 487 Source: E3 PATHWAYS 11 Attachment 4 - Pre-IRP Deliverables Page 12 of 34 Distributed Energy Resources ¬ DERs are technologies located close to customer load or on the customer side of the electricity me...

AI summary The text introduces Distributed Energy Resources (DERs) as technologies located near customer load or behind-the-meter, providing electricity generation or management close to the point of use.

California Case Study Pacific Northwest Case Study 80% Decarbonization Various Decarbonization Targets GW GW Source: E3 RESOLVE/RECAP IRP Update Appendix 1 Page 51 of 487 19 Attachment 4 - Pre-IRP Deliverables Page 20 of 34 Planning Reserv...

AI summary The text discusses the concept of Planning Reserve Margin (PRM), which is a convention used by utilities to maintain system reliability by holding resources above the forecasted median peak load. It outlines factors that influence PRM, such as unplanned outages and weather conditions, and notes that PRMs vary by utility.

critical for a stable, reliable grid – but not all resources Potential to Provide can provide them. IRP Update Appendix 1 Page 74 of 487 Attachment 5 - Pre-IRP Deliverables Page 9 of 89 WHY DO ESSENTIAL GRID The proportions of the SERVICES...

AI summary The text discusses the importance of essential grid services and how the cost distribution of different energy portfolios (conventional and renewable) affects the stability and reliability of the grid. It emphasizes the need to consider these factors when evaluating portfolio options.

22 Attachment 5 - Pre-IRP Deliverables Page 24 of 89 Dispatchable Resources in 2020 ¬ E3 used the net operating capacity (MW) and DAFOR (%) to stochastically represent the dispatchable generating capability of these resources in the RECAP...

AI summary The text discusses the dispatchable resources in 2020, including their net operating capacity and DAFOR percentages, as modeled by E3 in the RECAP model. It lists various units and their respective capacities and DAFOR values, categorized by fuel/tech type such as HFO/N Gas and Coal/Petcoke.

ngan 3 153 4.2% Coal/Petcoke Lingan 4 153 5.0% Trenton 5 150 6.8% Trenton 6 154 4.4% Tupper 2 150 1.9% Burnside 1 33 10.0%

AI summary The text presents data on various power generation units, including their names, capacities, and efficiency percentages, with fuels such as Coal/Petcoke listed. This information likely pertains to generation resources and their performance metrics.

Tupper 2 150 1.9% Burnside 1 33 10.0% Conventional Thermal Burnside 2 33 10.0% Burnside 3 33 10.0% Oil Burnside 4 33 10.0% Victoria Junction 1 33 10.0% Victoria Junction 2 33 10.0% Tusket 33 10.0% Hydro Dispatchable Hydro 162 5% Port Hawek...

AI summary The text presents data on various power generation sources in Nova Scotia, including conventional thermal, hydro, biomass, and biogas, along with their respective capacities and percentages. The total operating capacity is listed as 2,012 MW.

IRP Update Appendix 1 Page 90 of 487 Total Operating Capacity (MW) 2,012 23 Attachment 5 - Pre-IRP Deliverables Page 25 of 89 Hydro / Tidal Resources Overview ¬ For modeling purposes, hydro is grouped into 3 categories • Dispatchable: hydr...

AI summary The document discusses the categorization of hydro and tidal resources for modeling purposes, including dispatchable hydro, tidal resources similar to wind, and Wreck Cove with specific operational constraints.

minimum output, and daily maximum energy IRP Update Appendix 1 Page 91 of 487 24 Attachment 5 - Pre-IRP Deliverables Page 26 of 89 Hydro and Tidal Resources Maximum Minimum Other Constraints in Hydro Group Resource Name Capacity (MW) Capac...

AI summary The document provides details on hydro and tidal resources, including their maximum and minimum capacities, along with other constraints. It lists various hydro groups and their respective capacities, as well as tidal and other resources, contributing to a total capacity of 393 MW.

PRM ¬ Access to firm natural gas fuel supply during winter peak electricity events could be challenging to NSPI if new capacity is added which would further constrain gas pipeline import capacity ¬ Various options for firm fuel supply exis...

AI summary The document discusses challenges related to accessing firm natural gas fuel supply during winter peak electricity events, especially if new capacity is added, which could further constrain gas pipeline import capacity. It also outlines various options for firm fuel supply and mentions that more information will be provided as the Integrated Resource Plan (IRP) progresses. Reliability metrics such as Loss of Load Expectation (LOLE), Loss of Load Hours (LOLH), and Expected Unserved Energy (EUE) are presented for NSPI in 2020.

rators caused by transmission interconnector interruptions during an extreme weather event • 850,000 customers lost supply; 90% restored in 8 hours, remainder within approximately 2 weeks Load shedding is used in both the South Australia a...

AI summary The document discusses system stability in Nova Scotia with varying levels of renewable generation, noting that 600MW of inverter-based renewable generation can be accommodated if three thermal units are maintained. Up to 1000MW may be installed with a second tie to New Brunswick. The loss of this tie is identified as the most significant contingency affecting system stability.

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AI summary The text outlines questions related to the impact of the Maritime Link on renewable integration, existing assets, and demand response. It focuses on modeling, transmission availability, and the effects of additional infrastructure on system operations.

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AI summary The document discusses the 365kV line addition to the Nova Scotia Power Inc. (NSPI) system and highlights the findings of the PSC Renewable Integration Study. The study does not set a volume limit for additional wind resources but recommends an expanded analysis to explore this question further. It also notes that adding a second 365kV line to New Brunswick (Onslow to Salsbury) would enhance the system's ability to accommodate at least 400MW of additional wind resources, but does not confirm that this addition is required or that 400MW represents a maximum incremental addition of wind. The study does not consider synthetic inertia potential via Virtual Synchronous Generators as an alternative to synchronous condensers.

IRP Update Appendix 1 Page 224 of 487 Attachment 17 - Pre-IRP Deliverables Page 27 of 85 1.5.1 SOUTHWEST POWER POOL (SPP) The Southwest Power Pool (SPP) is an ISO covering multiple states in the middle of the U.S. including all or portions...

AI summary The text discusses the reliability metrics and planning reserve margin (PRM) requirements for three ISOs: Southwest Power Pool (SPP), Midcontinent Independent System Operator (MISO), and Electric Reliability Council of Texas (ERCOT). Each ISO uses different methods to calculate PRM and assign capacity resource requirements to load entities.

ced outages of dispatchable generation. Renewable credit is established by an ELCC study and currently stands at 15.2% for wind and 50% for solar. 1.5.3 ELECTRIC RELIABILITY COUNCIL OF TEXAS (ERCOT) The Electric Reliability Council of Texa...

AI summary The text discusses the Electric Reliability Council of Texas (ERCOT) and its approach to reliability and reserve margins in a deregulated energy market. It outlines the expected market equilibrium reserve margin, economically optimal reserve margin, and a purely informational reserve margin, none of which directly influence the actual reserve margin achieved.

Historical hourly load for many (10+) years Load Operating reserve requirements Weather Historical temperature data (daily max/min) for many (50+) years Net dependable capacity Mean time to failure (MTTF) Dispatchable Generation Forced out...

AI summary The text outlines data requirements related to load, generation, and reserve capacity, including historical load data, weather patterns, maintenance schedules, and performance metrics such as mean time to failure and repair. It also covers renewable and hydro generation capabilities, energy storage parameters, and demand response capacities.

erables Page 44 of 85 Planning Reserve Margin and Capacity Value Study Figure 14: RECAP Sample Hydro Dispatch During Winter Week 2.2.4 DISPATCHABLE GENERATION AVAILABILITY AND TRANSMISSION RECAP creates a time series of available dispatcha...

AI summary The document discusses the use of the RECAP model to simulate dispatchable generation and transmission availability by incorporating forced outages and maintenance schedules. It illustrates the aggregation of generator availability over time, showing how different generators contribute to overall system capacity.

IRP Update Appendix 1 Page 460 of 487 Appendix A - Pre-IRP Deliverables Page 19 of 29 Major changes in the asset management plan from the previous forecasts include: x Increased cycling (output ramping or two-shifting) of the thermal fleet...

AI summary The text discusses changes in the asset management plan, including increased cycling of the thermal fleet, changes in unit utilization forecasts for Trenton Unit #5 and Lingan Unit #1, and a 9 percent increase in sustaining capital from 2019 to 2027. It references Figure A-7 for a comparison of sustaining capital forecasts.

Party Question/Comment 6.1 Bates White How has PSC addressed the impact of the Maritime Link, including additional transfers from NLH for sales into New Brunswick/ISO New England? Did PSC modeling consider any contractual transmission prio...

AI summary The document discusses how PSC modeled the impact of the Maritime Link on NSPI’s imports and system stability, including transfers from NLH and transmission priorities for firm NLH sales in ISO New England. The modeling considered maximum transfer levels but did not account for contractual transmission priorities.

in a long-term planning process, but may appropriately be identified for action in an Action Plan resulting from that process. 6.29 Synapse NSPI should specifically establish the increased amount of wind that can be accommodated when using...

AI summary Synapse Energy Economics Inc. (Synapse) asks NSPI to establish the increased amount of wind that can be accommodated with a combination of synchronous condensers, battery storage, and a second tie. NS Power confirms that the second tie would eliminate the need for a minimum unit online constraint in modeling, though some thermal units may still be required for other system requirements.

ervices. Originally designed as a peaking power plant to serve the morning and evening peak energy demand periods, this flexible plant is now vital to the integration of variable renewable generation. For decades, Nova Scotia Power has rel...

AI summary Nova Scotia Power transitioned from coal to renewable energy, emphasizing historical reliance on coal for reliability, environmental upgrades, and current decarbonization efforts. The utility now prioritizes lower-carbon generation while maintaining system reliability and rate stability.

n Nova Scotia (Deep Decarbonization Pathways), completed as an input to the IRP process and provided as Appendix A. Figure 4. Firm Peak Load and Annual Energy Forecasts Nova Scotia Power also tested three alternative resource strategies fo...

AI summary Nova Scotia Power evaluated three resource strategies (Current Landscape, Distributed Resources, Regional Integration) and three GHG reduction scenarios (Equivalency, Net Zero, Accelerated Net Zero) for its Integrated Resource Plan. The strategies differ in distributed resource adoption, interconnection opportunities, and coal retirement timelines aligned with provincial climate goals.

Provides service(s) on a limited basis Mostly not applicable Nova Scotia Power considered a wide range of technologies, including renewable resources, imports via new transmission lines, battery storage, compressed air energy storage, cust...

AI summary Nova Scotia Power is evaluating various technologies, including renewable resources, battery storage, and natural gas power plants, to increase low- and zero-carbon generation while reducing greenhouse gas emissions. Hydroelectric resources and incremental firm imports offer reliable on-demand capacity, while wind and solar PV provide limited ancillary services. Fossil fuel plants may continue to serve as backup for reliability purposes.

r, VT: Regulatory Assistance Project. Farnsworth, D., Shipley, J., Lazar, J., and Seidman, N. (2018, June). Beneficial electrification: Ensuring electrification in the public interest. (raponline.org) - b. Complete a thermal plant Deprecia...

AI summary The document outlines several initiatives, including updating depreciation rates for thermal plants, developing a plan for replacing natural gas-powered steam turbines, and initiating a wind procurement strategy. It also emphasizes the creation of a demand response strategy targeting 75 MW of capacity by 2025.

2.4.4 Long-Term Capacity Expansion Modeling Software In previous IRPs, Nova Scotia Power relied on Strategist, a resource planning tool supported by ABB Enterprise Software. This tool worked well when the system was predominantly dispatcha...

AI summary Nova Scotia Power is transitioning from the Strategist tool to PLEXOS LT and RESOLVE for long-term capacity expansion modeling due to the increasing integration of variable renewable resources. PLEXOS LT provides detailed optimization and production cost modeling, while RESOLVE offers faster scenario analysis and screening capabilities to support integrated resource planning.

3.1 Ensuring Reliability A reliable electric system is essential to Nova Scotians. Nova Scotia Power plans its electricity system to ensure that loss-of-load events, caused by an electricity supply shortfall, are rare. System reliability m...

AI summary Nova Scotia Power emphasizes the importance of a reliable electric system, planning years in advance to ensure resource adequacy. As the power supply becomes more decarbonized, the integration of variable and intermittent resources like wind and solar introduces new challenges to reliability planning, requiring more comprehensive methods and potential increases in regulation reserves.

4.2.1 Overview Nova Scotia Power's generation portfolio is composed of a mix of fuel and technology types that include coal, petroleum coke, light and heavy oil, natural gas, biomass, wind, tidal, and hydro. In addition, Nova Scotia Power...

AI summary Nova Scotia Power's generation portfolio includes a diverse mix of fuels and technologies, such as coal, natural gas, wind, and hydro, along with energy purchased from independent power producers and imported from neighboring provinces. Figure 24 provides a breakdown of installed capacity by generation type as of 2020.

Figure 27. Grouping of Hydro Resources for Screening Analysis RESOLVE Model Group Installed Capacity (MW) Total Nameplate Capacity (MW) Hydro Group 1 Avon, Nictaux, Paradise, Tusket, Dickie Brook, Fall River 26.5 Hydro Group 2 Black River,...

AI summary Figure 27 presents the grouping of hydro resources for a screening analysis, listing installed and total nameplate capacities for different hydro groups in Nova Scotia. The data includes specific hydro sites and their capacities, with a reference to a study by Nova Scotia Power.

Figure 38. Coal-to-Gas Conversion Capital Cost Assumptions Coal Unit Capital Cost Point Tupper Unit 2 $237/kW Trenton Unit 5 $157/kW Trenton Unit 6 $148/kW Trenton Units 5+6 $127/kW Figure 39. Coal-to-Gas Conversion Characteristics Year Po...

AI summary The document presents capital cost assumptions for coal-to-gas conversion projects, including specific units and their associated costs. It also outlines characteristics such as levelized capital costs and variable operating and maintenance costs for these units across different years.

4.5.1 Existing Transmission Interconnections Nova Scotia Power has two existing interconnections to neighboring regions: the Maritime Link connecting Nova Scotia to Newfoundland, and an existing AC interface connecting Nova Scotia to New B...

AI summary Nova Scotia Power has two existing transmission interconnections: the Maritime Link to Newfoundland and an AC interface to New Brunswick. These interconnections are included in the Integrated Resource Plan (IRP) model. The Maritime Link provides access to energy and capacity resources, while the AC interface has limited firm import capacity due to reliability and transmission constraints.

4.5.2.2 Regional Integration In addition to the available Reliability Tie, the Regional Integration scenarios add two additional candidate transmission expansion options: 1) an HVDC line connecting Salisbury, New Brunswick to Quebec, and 2...

AI summary The document discusses two regional integration transmission expansion options: an HVDC line connecting Salisbury, New Brunswick to Quebec, and a 345 kV AC line from Salisbury to Coleson Cove, New Brunswick. These options provide access to ISO New England power markets and are modeled as flexible resources available starting in 2026.

Firm Import Options: - • Access to firm capacity via existing transmission up to ~150 MW firm; and/or, - • Access to firm capacity via new transmission build up to ~450 MW firm

AI summary The document outlines two options for accessing firm import capacity: utilizing existing transmission up to 150 MW or building new transmission to access up to 450 MW of firm capacity.

evertheless, there are still common elements that can be observed in many of these plans. Figure 47. Cumulative Capacity Additions and Retirements in the Long-Term (2045) In the long run, all coal units are retired by 2030 or by 2040 depen...

AI summary The document discusses long-term energy planning, highlighting the retirement of coal units by 2030 or 2040, the retirement of gas-fired steam units by 2045, and the addition of new gas plants with capacities ranging from 800–1700 MW. Coal-to-gas conversions and combined-cycle gas generation are also considered in various scenarios.

6.8.6 Gas and Import Prices The optimal resource plans developed for the key scenario runs show that both new gas generation and new firm imports are selected as common resources across scenarios as part of the overall strategy to replace...

AI summary Nova Scotia Power's resource plans show that new gas generation and firm imports remain key despite high-sensitivity testing of natural gas and import power prices. Minor adjustments include gas steam unit retirements and delays in the Regional Interconnection, with higher overall costs due to increased commodity prices.

fficiencyOne as discussed in section 6.8.1. Firm capacity resources will be a key requirement of the developing Nova Scotia Power system in both the near and long term.

AI summary The document highlights the importance of firm capacity resources for the Nova Scotia Power system in both the near and long term, emphasizing their role in system reliability and planning.

12 Resource options study approach 34 Approach Nova Scotia Power IRP Final Report Appendix B Page 35 of 112  In preparation for its upcoming integrated resource plan, NS Power has asked E3 to provide guidance on resource costs and potenti...

AI summary NS Power is preparing its Integrated Resource Plan (IRP) and has engaged E3 to assess resource options, focusing on costs, performance, and potential development within Nova Scotia. The study includes modeling resource costs, operational constraints, and long-term planning tools to evaluate generation portfolios.

2020 IRP FINAL ASSUMPTIONS SET 50 Nova Scotia Power IRP Final Report Appendix B Page 52 of 112 EFFECTIVE LOAD CARRYING CAPABILITY (ELCC) • The information from the Planning Reserve Margin and Capacity Value Study undertaken by E3 as part o...

AI summary The document discusses the Effective Load Carrying Capability (ELCC) of wind energy in Nova Scotia Power's system, referencing a study by E3. It notes that the average ELCC of existing wind capacity is 19%, while the marginal ELCC of adding new wind is 11%, indicating diminishing returns as more wind capacity is added.

1.0A MW/units Generator Year 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 Existing Coal Retirements 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 unit 1 unit 2 units 4 units...

AI summary The table outlines the planned retirements and additions of various types of generators from 2021 to 2045, including existing coal and gas retirements, new gas combined cycle (CCs) and combustion turbines (CTs) and reciprocating engines, and biomass additions. The data shows a gradual phase-out of coal and gas generators, with a significant increase in new gas CCs and CTs and reciprocating engines starting from 2035.

1.0C MW/units Generator Year 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 Existing Coal Retirements 0 0 1 unit 1 unit 1 unit 1 unit 1 unit 1 unit 1 unit 2 unit...

AI summary The table outlines the retirement and addition of various types of generators over the years, including coal, gas, and biomass. It shows the phased retirement of existing coal and gas units and the addition of new gas units, particularly carbon capture and combustion turbines, starting from 2026 onwards.

2.0A MW/units Generator Year 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 Existing Coal Retirements 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 unit 1 unit 2 units 4 units...

AI summary The document presents a table outlining the retirement and addition of various types of generators from 2021 to 2045, including coal, gas, and biomass. It details the number of units retired and added annually, with a focus on gas-fired generators and their conversions.

2.0C MW/units Generator Year 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 Existing Coal Retirements 0 0 1 unit 1 unit 1 unit 1 unit 1 unit 1 unit 1 unit 2 unit...

AI summary The document presents a table outlining the retirement and addition of various types of generators over the years from 2021 to 2045, including coal, gas, and biomass. It details the number of units retired and added annually, with a focus on coal and gas retirements and new gas capacity additions.

2.1A MW/units Generator Year 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 Existing Coal Retirements 0 0 1 Unit 1 Unit 1 Unit 1 Unit 1 Unit 1 Unit 1 Unit 2 Unit...

AI summary The table outlines the planned retirements and additions of various types of generators from 2021 to 2045, including coal, gas, and biomass units, as well as new and converted gas units. It provides a detailed breakdown of the changes in generator capacity over time.

2.1B MW/units Generator Year 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 Existing Coal Retirements 0 0 0 0 0 0 0 0 0 1 Unit 1 Unit 1 Unit 1 Unit 1 Unit 1 Unit...

AI summary The table outlines the planned retirements and additions of various generator types from 2021 to 2045. It shows the retirement of existing coal and gas units, as well as the addition of new gas combined cycle (CC) and combustion turbine (CT) units, along with conversions. The data highlights the transition from coal to gas and the gradual increase in new gas capacity over time.

2.1C MW/units Generator Year 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 Existing Coal Retirements 0 0 1 Unit 1 Unit 1 Unit 1 Unit 1 Unit 1 Unit 1 Unit 1 Unit...

AI summary The table outlines the planned retirements and additions of various generator types from 2021 to 2045, showing the phase-out of coal and gas units and the introduction of new gas units, including compressed air energy storage (CAES), over time.

2.2C MW/units Generator Year 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 Existing Coal Retirements 0 0 0 0 0 0 0 0 0 0 2 units 2 units 2 units 3 Units 3 Units...

AI summary The table outlines the retirement and addition of various generator types from 2021 to 2045, showing the phase-out of existing coal and gas units and the introduction of new gas combined cycle (CC) and combustion turbine (CT) units, as well as biomass additions starting in 2030.

3.1B MW/units Generator Year 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 Existing Coal Retirements 0 0 1 Unit 1 Unit 1 Unit 1 Unit 1 Unit 1 Unit 4 Units 7 Uni...

AI summary The document provides a detailed table outlining the planned retirement and addition of various types of generators from 2021 to 2045, including coal, gas, and biomass. It highlights the retirement of existing coal and gas units and the addition of new gas units and conversions over time.

3.1C MW/units Generator Year 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 Existing Coal Retirements 0 0 1 Unit 1 Unit 1 Unit 1 Unit 1 Unit 1 Unit 4 Units 7 Uni...

AI summary The table outlines the retirement and addition of various types of generators over the years, including coal, gas, and biomass. It details the number of units retired and added annually from 2021 to 2045, providing a long-term outlook on the energy generation mix in Nova Scotia.

3.2B MW/units Generator Year 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 Existing Coal Retirements 0 0 0 0 0 0 0 1 Units 4 Units 7 Units 7 Units 7 Units 7 Uni...

AI summary The document outlines the retirement and addition of power generation units over time, including coal, gas, and biomass. It provides a detailed breakdown of existing retirements, new additions, and conversions for each year from 2021 to 2045.

3.2C MW/units Generator Year 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 Existing Coal Retirements 0 0 0 0 0 0 0 1 Unit 4 Units 7 Units 7 Units 7 Units 7 Unit...

AI summary The table outlines the retirement and addition of various generator units from 2021 to 2045, showing the phased retirement of existing coal and gas units and the addition of new gas units, conversions, and biomass facilities over time.

2.0C.DSM-4 (Low DSM) MW/units Generator Year 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 Existing Coal Retirements 0 0 1 Unit 1 Unit 1 Unit 1 Unit 1 Unit 1 Un...

AI summary The table outlines the planned retirements and additions of various generator types from 2021 to 2045, including coal, gas, and biomass, with specific units for each year. It shows the gradual retirement of existing coal and gas generators and the addition of new gas units, including those with carbon capture and combustion turbines.

2.0C.DSM-5 (Mid DSM) MW/units Generator Year 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 Existing Coal Retirements 0 0 1 Unit 1 Unit 1 Unit 1 Unit 1 Unit 1 Un...

AI summary The table outlines the retirement and addition of generation units for coal, gas, and biomass from 2021 to 2045, highlighting the phase-out of existing coal and gas units and the introduction of new gas units, particularly combined cycle (CCs) and combustion turbines (CTs) and reciprocating engines.

2.0C.DSM-6 (Max DSM) MW/units Generator Year 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 Existing Coal Retirements 0 0 1 Unit 2 Units 2 Units 2 Units 2 Units...

AI summary The table outlines the maximum demand-side management (DSM) capacity and generator retirements and additions across various years, focusing on coal and gas retirements, new gas capacity, and biomass. It provides a detailed breakdown of units retired and added from 2021 to 2045.

3.1C.DSM-7 (Mid DSM) MW/units Generator Year 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 Existing Coal Retirements 0 0 1 Unit 1 Unit 1 Unit 1 Unit 1 Unit 1 Un...

AI summary The table outlines the planned retirements and additions of various types of generators from 2021 to 2045, including coal, gas, and biomass. It shows the transition from existing coal and gas retirements to new gas generation and conversions over time.

2.1C.WIND-1 (Low Wind Cost) MW/units Generator Year 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 Existing Coal Retirements 0 0 1 Unit 1 Unit 1 Unit 1 Unit 1 Un...

AI summary This table outlines the retirement and addition of various types of generators over time, including coal, gas, and biomass, with a focus on new capacity additions for gas-fired units and the retirement of existing coal and gas units.

2.1C.WIND-2 (Low Wind & Batte MW/units Generator Year 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 Existing Coal Retirements 0 0 1 Unit 1 Unit 1 Unit 2 Units 2...

AI summary The table outlines the retirement and addition of various types of power generators in Nova Scotia from 2021 to 2045, with a focus on coal, gas, and biomass. It shows the phase-out of existing coal and gas units and the planned addition of new gas units, including combined cycle (CCs) and combustion turbines (CTs & reciprocating engines).

2.1C.WIND-3 (Low Inertia ConstrMW/units Generator Year 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 Existing Coal Retirements 0 0 1 Unit 1 Unit 1 Unit 1 Unit 1...

AI summary The table outlines the retirement and addition of various types of generators from 2021 to 2045, including coal, gas, and biomass. It shows the number of units retired and added annually, with a focus on gas-fired units and the transition from coal to cleaner energy sources.

2.1C.WIND-4 (No Inertia / No IntMW/units Generator Year 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 Existing Coal Retirements 0 0 1 Unit 1 Unit 1 Unit 2 Units...

AI summary This table outlines the retirement and addition of various types of generators from 2021 to 2045, including existing coal and gas retirements, new gas combined cycle and combustion turbine units, and biomass additions. It provides a detailed breakdown of changes in generator capacity over time.

10 10 10 10 10 10 10 10 10 10 Battery 4hr 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Installed Capacity Changes Nova Scotia Power IRP Final Report Appendix F Page 13 of 25

AI summary The document shows a table with 'Battery 4hr' and 'Installed Capacity Changes' as headings, followed by a page reference from the Nova Scotia Power IRP Final Report Appendix F.

2.1C.Mersey MW/units Generator Year 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 Existing Coal Retirements 0 0 0 0 0 0 0 0 3 Units 3 Units 3 Units 3 Units 3 Un...

AI summary The table outlines the planned retirements and new additions of various types of generators at Mersey from 2021 to 2045, including coal, gas, and biomass. It shows the timeline for retiring existing coal and gas units and the addition of new gas units, including combined cycle (CCs), combustion turbines (CTs), and reciprocating engines.

2.1C.Import-1 (Limited Non-FirmMW/units Generator Year 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 Existing Coal Retirements 0 0 1 Unit 1 Unit 1 Unit 1 Unit 1...

AI summary The table outlines the retirement and addition of various types of generators in Nova Scotia from 2021 to 2045, highlighting the phasing out of coal and gas units and the introduction of new gas capacity, including combined cycle (CCs) and combustion turbines (CTs) and reciprocating engines.

2.0A.Import-2 (No Reliability Tie MW/units Generator Year 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 Existing Coal Retirements 0 0 1 Unit 1 Unit 1 Unit 1 Uni...

AI summary The document provides a table outlining the retirement and addition of various types of generators from 2021 to 2045, including coal, gas, and biomass. It details the number of units retired and added annually, with a focus on coal and gas retirements and new gas capacity additions, particularly carbon capture and combustion turbines.

2.1C.Import-3 (Limited Reliabilit MW/units Generator Year 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 Existing Coal Retirements 0 0 1 Unit 1 Unit 1 Unit 1 Uni...

AI summary This table outlines the planned retirements and additions of various power generation units from 2021 to 2045, including coal, gas, and biomass. It shows the phase-out of existing coal and gas units and the addition of new gas units, including compressed air energy storage (CAES).

10 10 10 10 10 0 0 0 0 0 Battery 4hr 0 0 0 0 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 0 Installed Capacity Changes Nova Scotia Power IRP Final Report Appendix F Page 14 of 25

AI summary The document presents a table showing installed capacity changes, specifically for Battery 4hr, with data spanning multiple years. It is part of Nova Scotia Power's Integrated Resource Plan (IRP) Final Report Appendix F, which outlines changes in energy capacity over time.

2.1C.CAPEX-1 (High Sustaining C MW/units Generator Year 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 Existing Coal Retirements 0 0 1 Unit 1 Unit 1 Unit 1 Unit...

AI summary The text presents a detailed table outlining the planned retirement and addition of various types of generators over the years, including coal, gas, and biomass, with specific numbers for units and capacities. It highlights the transition from coal and gas retirements to new gas generation and the phased introduction of new units.

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Domestic Hydro 891 893 893 893 916 915 915 915 915 1,011 1,012 1,012 1,011 1,011 1,012 1,012 1,012 1,011 1,012 1,012 1,012 1,012 1,012 1,011 1,012 Tidal 0 0 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26...

AI summary The text provides a table listing the generation capacity from various sources, including Domestic Hydro, Tidal, Biomass, Wind, Solar, and Diesel CTs, with varying values across different time periods or intervals.

4 Diesel CTs 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 2 2 3 4 6 1 2 Maritime Link Blocks 1,133 1,133 1,133 1,134 1,133 894 894 894 894 894 894 894 894 894 894 894 894 894 894 894 894 894 894 894 894 Demand Response 0 1 1 2 3 3 3 3 2 3 3 3 3 2 3...

AI summary The text presents numerical data across various categories such as Diesel CTs, Maritime Link Blocks, Demand Response, Non Firm Market, CAES, Battery Generation, and Firm Imports. The data appears to be related to energy generation and resource planning.

3 3 3 3 3 3 3 3 3 3 3 0 0 0 0 0 Firm Imports 0 950 973 979 979 977 982 982 982 974 975 977 973 972 972 969 1,201 1,218 1,565 2,446 2,166 2,143 2,222 2,208 2,212

AI summary The document presents a table showing Firm Imports data over time, with values ranging from 0 to 2,446. The data appears to be related to energy imports and may be relevant to discussions about electricity generation and grid resources.

24.38 26.46 25.09 24.07 26.18 26.88 26.28 26.68 27.07 29.81 29.14 25.53 25.95 26.11 25.88 4.30 Firm Imports 0 951 973 977 975 980 976 978 981 979 978 977 978 975 975 973 1,385 1,386 1,566 2,185 2,185 2,186 2,196 2,221 2,244 Annual Energy B...

AI summary The text presents numerical data related to firm imports and energy balance, likely from a regulatory proceeding involving Nova Scotia Power. It includes a heading referencing an Annual Energy Balance and a page reference from an IRP Final Report Appendix.

2,051 2,259 2,315 CAES 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Battery Generation 0.56 3.04 2.82 3.20 44.03 40.07 47.13 46.69 48.02 63.98 82.04 79.05 79.53 78.70 93.34 88.78 86.92 87.72 87.14 78.84 111.94 133.53 175.97 213.05 188...

AI summary The text presents numerical data related to energy generation and imports, including figures for CAES and Battery Generation across multiple time periods. The data indicates that CAES has no contributions, while Battery Generation shows increasing values over time.

69 1,875 CAES 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Battery Generation 0.35 0.58 0.48 0.53 11.57 12.91 14.37 15.21 16.21 17.54 21.64 21.20 25.60 24.37 23.14 22.53 21.74 20.82 21.04 22.56 18.26 20.10 20.06 18.91 0.00 Firm Import...

AI summary The text presents data on energy generation and imports, including figures for Compressed Air Energy Storage (CAES) and Battery Generation, as well as Firm Imports over a period of time. This data is part of an Annual Energy Balance report from Nova Scotia Power's Integrated Resource Plan (IRP) Final Report Appendix F.

,802 1,531 1,390 1,325 1,457 1,449 1,487 1,474 1,484 1,535 1,585 1,567 1,609 1,645 1,716 1,769 1,822 1,926 1,968 1,961 CAES 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Battery Generation 0.46 0.67 0.59 0.83 11.82 7.05 12.65 14.36 19....

AI summary The text presents numerical data related to energy generation and imports, including figures for CAES, battery generation, and firm imports over a multi-year period. It appears to be part of an annual energy balance report from Nova Scotia Power's IRP Final Report.

2,292 2,284 2,295 2,279 2,087 2,067 1,969 2,054 2,081 2,061 2,100 2,295 2,122 2,132 2,097 2,071 2,063 2,040 CAES 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Battery Generation 0.51 0.42 1.27 2.23 3.31 2.91 3.19 1.48 1.87 2.85 3.28 4....

AI summary The text presents a series of numerical values over time, with entries for CAES, Battery Generation, and Firm Imports. The values for CAES and Firm Imports are consistently zero, while Battery Generation shows fluctuating values over the time period.

estic Hydro 894 893 892 892 914 909 907 906 909 991 999 1,003 998 1,000 999 1,007 1,004 1,008 1,004 1,005 1,008 1,009 1,010 1,009 1,016 Tidal 0 0 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 Biomass 336 354 355 354...

AI summary The document presents a table with numerical data across various energy sources and projects, including Hydro, Tidal, Biomass, Wind, Solar, Diesel CTs, and Maritime Link Blocks, showing varying figures over time.

1,133 1,133 1,134 1,133 894 894 894 894 894 894 59 894 894 894 894 893 894 894 894 894 893 893 894 894 Demand Response 0 0 1 2 3 4 4 3 3 3 3 59 3 2 3 3 3 3 3 3 3 3 3 3 3 Non Firm Market 2,300 1,338 1,329 1,318 1,314 1,310 1,312 1,301 1,289...

AI summary The text presents numerical data across various categories, including Demand Response, Non Firm Market, CAES, Battery Generation, and Firm Imports, with values varying over time. The data appears to be related to energy generation and distribution metrics.

2.0C.DSM-6 (Max DSM) GWh Generator Year 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 Coal 4,007 3,766 3,558 3,384 3,167 3,253 3,139 3,049 3,006 2,832 2,791 2,3...

AI summary This table outlines the projected generation output from various energy sources in Nova Scotia from 2021 to 2045, with a focus on coal, gas, domestic hydro, and tidal energy. It shows a gradual decline in coal generation and increasing contributions from gas and hydro sources over time.

1,385 1,356 1,343 1,341 1,339 1,344 1,346 1,353 1,349 1,366 1,377 1,324 1,628 1,619 1,626 1,642 1,621 1,641 CAES 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Battery Generation 0.68 0.53 1.69 2.13 28.75 24.19 26.41 26.09 26.35 26.58 2...

AI summary The text presents numerical data related to energy generation and imports, including values for CAES, Battery Generation, and Firm Imports over multiple years. It also references an 'Annual Energy Balance' section from the Nova Scotia Power IRP Final Report Appendix F, Page 22 of 25.

2.1C.WIND-2 (Low Wind & BatterGWh Generator Year 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 Coal 3,999 3,742 2,772 2,044 1,893 1,999 2,003 2,058 2,064 1,782...

AI summary The text presents a table showing the projected generation capacity from various sources (Coal, Gas - Existing, Gas - New CCs, Gas - New CTs & Recips, Gas - Conversion) over the years from 2021 to 2045. The data indicates a gradual decline in coal generation and an increase in gas generation, particularly in new CTs & Recips and new CCs starting from 2030 onwards.

2.1C.WIND-3 (Low Inertia Constr GWh Generator Year 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 Coal 4,018 3,699 3,551 3,514 3,347 3,427 3,414 3,455 3,412 3,03...

AI summary The text presents a table showing the projected generation capacity from various sources (coal, gas, and new generation technologies) over the years 2021 to 2045. It details the decline in coal generation and the gradual increase in gas and new generation technologies.

2.1C.WIND-4 (No Inertia / No Int GWh Generator Year 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 Coal 4,031 3,760 3,495 3,219 2,730 2,850 2,202 2,202 2,204 2,0...

AI summary The table outlines the projected generation output from various sources, including coal, gas (existing, new CCs, new CTs & Recips, and conversion), from 2021 to 2045. It shows a decline in coal generation and an increase in gas generation, particularly in new CTs & Recips.

2.1C.Mersey GWh Generator Year 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 Coal 3,995 3,728 3,721 3,866 3,737 3,753 3,483 3,536 3,602 1,523 1,485 1,489 1,473...

AI summary The table presents electricity generation data from Mersey, including coal, gas, hydro, tidal, and biomass sources from 2021 to 2045. It shows a decline in coal generation and the introduction of new gas generation technologies over time.

2.1C.PRICES-1 (High Import & Ga GWh Generator Year 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 Coal 4,279 3,798 3,739 3,763 3,459 3,454 3,371 3,425 3,476 2,51...

AI summary The table presents generation prices for various energy sources from 2021 to 2045, showing trends in coal, gas, hydro, tidal, and biomass generation. It outlines the projected capacity and output for each energy type over time.

2020 IRP ASSUMPTIONS SET 84 Nova Scotia Power IRP Final Report Appendix H Page 104 of 321 DUAL FUEL CAPABILITY Given the known challenges associated with securing a cost-effective firm natural gas supply source, the economics and permit ab...

AI summary The document discusses the dual-fuel capability of power generation units, considering the use of ULSD oil as an alternative to natural gas due to challenges in securing a cost-effective firm natural gas supply. Benefits include flexibility and reliability, but challenges such as increased emissions and operational complexity are also noted.

generation that can’t be integrated into the NS Power system or for which there isn’t sufficient export capacity to produce hydrogen can be another element of a wind and solar integration strategy. (4) hydro imports offer a relatively high...

AI summary The text discusses the potential for hydro imports via the Maritime Link to assist with wind and solar integration in the NS Power system. It highlights the flexibility of hydro imports and the regulation capacity provided by the Maritime Link, which can help offset generation/load imbalances caused by rapid changes in wind and solar output.

n L-5533 (left axis) 20 WEC Field Generation (left axis) 6 Digby Load (MW) Digby Load (right axis) 10 3 0 0 -10 -20 -30 1 2 3 4 5 6 7 June, 2014 (date) Fig. 9. Electricity flows of transmission, generation, and load in Digby in June. Trans...

AI summary The text presents a graph depicting electricity flows in Digby, including transmission line L-5533, wind energy converter (WEC) field generation, and load data for June 2014. The graph shows the relationship between transmission, generation, and load in the area.

Fraction (%) tracted from the greater grid supply will require additional generation elsewhere [21]. Thus the greater question is whether

AI summary The text discusses the impact of energy generation and consumption on the grid, noting that energy drawn from the grid may necessitate additional generation elsewhere, raising questions about system efficiency and planning.

Figure 17. Biomass direct combustion system A typical biomass energy generation system is made up of several key components. For a steam cycle, we consider the combination of the following items: Digby Submissions February 14, 2020 Page 35...

AI summary The text describes a biomass direct combustion system and includes a reference to a storage system for the Municipality of the District of Digby by Sigma Energy Storage Inc.

Biomass CHP System The summary of technical and financial analyses for mentioned systems are presented in Table 18. Table 18- Summary of the technical and financial analyses

AI summary The document presents a summary of technical and financial analyses for biomass CHP systems in Table 18, though the table content is not included in the provided text.

Control And • User and local Interfaces Data Acquisition Engineering expertise Microgrid control • Energy Management Microgrid • Power Management controllers • Control algorithms Distributed Energy Resources Field communication • Multi-flu...

AI summary The text outlines key components of microgrid control systems, including user interfaces, energy and power management, control algorithms, and communication with field devices. It also references distributed energy resources and multi-fluid energy systems such as heat and gas.

Power IRP Final Report Appendix H Page 253 of 321 To: Nova Scotia Power (NSP) – Integrated, Resource Planning Team From: Jon Sorenson, Hydrostor Re: Advanced Compressed Air Energy Storage (A-CAES) As communicated on our teleconference, Hyd...

AI summary Hydrostor is proposing its Advanced Compressed Air Energy Storage (A-CAES) technology to Nova Scotia Power as a solution for balancing the grid as the company retires assets and increases reliance on intermittent renewable energy sources.

190 analogous storage caverns management systems. & gas sectors. globally. Figure 2: How A-CAES Works vi Nova Scotia Power IRP Final Report Appendix H Page 261 of 321

AI summary The text references Nova Scotia Power's Integrated Resource Planning (IRP) Final Report and mentions advanced compressed air energy storage (A-CAES) technology, including a figure illustrating how A-CAES works. The document also notes the existence of 190 analogous storage caverns and management systems related to gas sectors globally.

hronous condenser 1.75 MVAr/MW mode (3) Steady-state round-trip efficiency (AC-to-AC), including all auxiliary Efficiency >60% loads, assuming daily cycle Cycle life 20,000 cycles (4) Lifetime Equipment useful life (with appropriate mainte...

AI summary The document provides technical specifications for an asynchronous condenser, including metrics such as reactive power delivery, efficiency, cycle life, and system strength. It also mentions siting criteria for A-CAES (Advanced Compressed Air Energy Storage) and refers to the Nova Scotia Power IRP Final Report Appendix H.

Explicitly identify LCOE values from E3 Resource Options Study 4. Supply Side Dalhousie Scenarios w/ more grid sharing from provinces w/ hydro NS Power has added a Regional Integration resource Options and micro-grid structures strategy to...

AI summary The document discusses supply-side options for energy generation in Nova Scotia, including regional integration strategies, coal-to-gas conversions, natural gas-fired combined cycle turbines, and compressed air energy storage. NS Power is evaluating these options within the Integrated Resource Plan (IRP) and considering reliability and capital costs.

Maritime Link Blocks 2500 500 2000 Wind 0 0 Biomass 2020 2025 2030 2035 2040 2045 2000 Hydro Firm Peak Energy Gas- RECIP MW

AI summary The text presents a graphical representation of energy generation capacity, including Maritime Link Blocks, Wind, Biomass, Hydro, and Gas-RECIP, with projections from 2020 to 2045. It highlights energy production and firm peak capacity over time.

Gas- RECIP MW Gas- Coal Conv. 1500 Gas - CC Gas - CT 1000 Diesel CTs Gas - TUC 500 Coal

AI summary The text presents a graphical representation of gas and coal generation capacity, with various types of generation sources such as gas-CC, gas-CT, diesel CTs, and coal, displayed in a chart with MW as the unit of measurement.

Non Firm Market Firm Peak - MW 12,000 2500 10000 Battery Capacity Credit 11,000 2000 8000 DR Proxy 1500 6000 10,000 Synchronous Condensers 1000 4000

AI summary The text presents a visual representation of non-firm market data, including firm peak capacity in MW, battery capacity credit, DR proxy, and synchronous condensers, with corresponding numerical values.

Synchronous Condensers 1000 4000 9,000 Maritime Link Blocks 500 2000 Solar 0 0 8,000 2020 2025 2030 2035 2040 2045 Wind 7,000 Firm Peak Energy Biomass GWh

AI summary The text presents a visual representation of energy generation capacity, including synchronous condensers, maritime link blocks, solar, wind, and biomass, with data points spanning from 2020 to 2045. It illustrates projected energy output and capacity over time.

6,000 Hydro Gas- Coal Conv. 5,000 Gas- RECIP 4,000 Gas - CC 3,000 Gas - CT Diesel CTs 2,000 Gas - TUC 1,000 Coal 0 2021 2022 2023 2024 2025 2026 2027

AI summary The text presents a graphical representation of energy generation capacity across various fuel sources (hydro, gas, coal, diesel) from 2021 to 2027, illustrating trends and projections for each type of generation.

INERTIA CONSTRAINT • The kinetic inertia constraint is modeled at Inertia Contribution Source (MW.sec) Generators (01 - Lingan 1) 814 3266 MW.sec minimum online requirement Generators (02 - Lingan 2) 814 Generators (03 - Lingan 3) 797 • Th...

AI summary The document discusses the kinetic inertia constraint, which requires a minimum of 3266 MW.sec online from generators. This is based on a 2019 PSC Study and includes contributions from various generators, such as Lingan 1, Lingan 2, and Tufts Cove 1 and 2.

Tufts Cove 4) 245 Generators (15 - Tufts Cove 5) 245 • Unit provisions are shown in the table on Generators (16 - Tufts Cove 6) 245 Generators (270 - New_50MW Pump Strg) 100 the right for existing and new resource Generators (320 - New_Tre...

AI summary The text lists various generators and their capacities, including existing and new resources available to the model, such as Tufts Cove 4, New_50MW Pump Strg, and New_Tre 5 NGas, along with their respective capacities in MW.

1 Run the “In” Case: Run RESOLVE with all  The diesel CT screening analysis evaluates existing units in the model to identify optimal the system value of NSP’s diesel CT assets future resource portfolio that meets reliability and GHG goal...

AI summary The text describes a process to evaluate the system value of NSP’s diesel CT assets by running two scenarios in RESOLVE: one including all existing diesel CTs ('in' case) and one excluding them ('out' case). The difference in costs between these scenarios reflects the net system value or cost of the diesel CTs.

Nova Scotia when Power IRP Final Report Appendix J Page 24 of 245 Wreck Cove removed from the model Replacement Capacity and Energy when Wreck Cove Removed – 1.0.A.  When Wreck Cove is removed from the system, the model 400 350 Battery bu...

AI summary The removal of Wreck Cove from the model leads to the creation of gas peaker plants to compensate for the lost capacity and energy. The model also includes battery and wind resources in the replacement capacity scenario.

Annual Energy (Gwh) NE Imports replacement capacity 250 200 NB Imports 150 ML Imports 100 50 HQ Imports 0 Gas (Peaker)  The model replaces Wreck -50 -100 Gas (CCGT)

AI summary The document presents a visual representation of annual energy imports and replacement capacity, highlighting key sources such as NE, NB, ML, HQ, and gas-based generation (Peaker and CCGT). The data provides insights into energy flow and capacity replacement.

roughly equal parts from new gas CCGTs, CTs, wind, and batteries NPV ($2021) – with 20-year end effects $20,068  The average generation cost increases significantly (~12%) Average Generation Cost (c/kWh) 8.7 relative to 2.1.A Capacity Add...

AI summary The text presents a comparison of generation sources, including new gas CCGTs, CTs, wind, and batteries, with an NPV of $20,068 and an increase in average generation cost by approximately 12% to 8.7 c/kWh. It also outlines capacity additions and retirements, as well as energy balance figures for various technologies.

led 1,000 Imports (Firm) Hydro Installed

AI summary The text presents a visual representation of installed capacity and includes references to imports and hydroelectric power. The context suggests a discussion about energy generation and infrastructure planning.

Accel. Net Zero, High Elec./Max DSM, Regional Integration Key Observations Metric 2035 2045  System costs decrease when imports from neighboring GHG Emissions (MMT) 0.7 0.5 regions are available GHG Marginal Abatement Cost ($/ton) $0 $30...

AI summary The document discusses the impact of regional energy imports on system costs, GHG emissions, and generation capacity. It highlights that importing energy from neighboring regions reduces GHG emissions and system costs while decreasing the need for solar, batteries, wind, and gas by 2045.

Average Generation Cost (c/kWh) 7.7

AI summary The document provides a single data point indicating the average generation cost at 7.7 cents per kilowatt-hour.

Installed Capacity (MW) Biomass 8,000 Imports (Firm) 1,000 NE Imports Hydro NB Imports 6,000 Fuel Oil 500 ML Imports Gas (Conversion)

AI summary The text presents a chart showing installed capacity in megawatts (MW) across various energy sources, including biomass, imports from New Brunswick (NE Imports), hydro, fuel oil, and gas (conversion), with specific values provided for each category.

Gas (Conversion) HQ Imports 4,000 Gas (Peaker - New) Hydro 0 Gas Gas (CCGT - New) w/ CCS (Conversion) 2,000 -500 Gas G

AI summary The text presents a visual representation of energy generation and import data, including gas conversion, hydro, and new gas generation with carbon capture and storage (CCS) technologies.

Gas (CCGT (Peaker- New) - New) Gas Gas (Existing) (CCGT - New) w/ CCS 0-1,000 Coal Gas (CCGT - New) 2021 2025 2030 2035 2040 2045 Nuclear

AI summary The text presents a visual representation of various energy generation sources, including gas (CCGT), coal, nuclear, and peaker plants, with projections from 2021 to 2045. It outlines the potential expansion and retirement of different energy technologies over time.

2021 2025 2030 2035 2040 2045 Nuclear Nuclear Gas (Peaker) - Retirement -1,500 Gas (CCGT) - Retirement 2021 2025 2030 2035 2040 2045 Coal - Retirement 48 2.0.C with Low COVID Forecast Nova Scotia Power IRP Final Report Appendix J Page 51 o...

AI summary The text includes a table with forecast data for energy generation capacities from 2021 to 2045, including nuclear, gas (Peaker), and coal retirements, and references a final report titled 'Nova Scotia Power IRP Final Report Appendix J Page 51 of 245'.

Average Generation Cost (c/kWh) 7.7

AI summary The document provides a single data point indicating the average generation cost at 7.7 cents per kilowatt-hour.

16,000 DR Capacity Addition and Retirement (MW) Energy Balance (GWh) Pumped Storage 2,500 14,000 Battery DR 16,000 DR 2,500 DR Wind Pumped Storage Pumped Storage 2,000 12,000 Pumped Storage Tid

AI summary The text presents data on capacity addition and retirement (in MW) and energy balance (in GWh), including details on pumped storage, battery, and wind energy sources. It appears to be a visual or tabular representation of energy generation and storage capacities.

500 Imports (Non-firm) Hydro AnnualEnergy Imports (Non-firm) NB Imports 6,000 Fuel Oil 8,000 Imports (Firm) 500 Imports (Firm) ML Imports Gas (Conversion) Installed

AI summary The text presents a visual representation of energy imports, distinguishing between firm and non-firm imports, including fuel oil, NB imports, and gas conversion. It also references installed capacity and annual energy data.

Gas (Conversion) Installed 0 HQ Imports Hydro Hydro Installed Gas (Peaker - New)

AI summary The text appears to be a visual or tabular representation of energy resources, including gas conversion, installed capacity, hydro imports, and a new gas peaker installation. The content is sparse and lacks detailed discussion or analysis.

Gas (Peaker - New)

AI summary The text references a gas peaker project, indicating a potential new generation resource for electricity supply.

Gas (CCGT Gas(Peaker (Peaker- New) -1,000 4,000 -500 Gas New) New) Gas (CCGT - New) w/ CCS Gas Gas (Existing) (CCGT - New) w/ CCS Gas (CCGT - New) w/ CCS

AI summary The text presents a visual representation of various gas-related infrastructure projects, including Combined Cycle Gas Turbine (CCGT) plants, peaker plants, and Carbon Capture and Storage (CCS) integration, with associated capacity and cost figures.

Gas (CCGT - New) w/ CCS 0-1,000 Gas (CCGT - New) Coal Gas (CCGT - New) -1,500 2,000 Gas (CCGT - New) 2021 2025 2030 2035 2040 2045 Nuclear Nuclear Nuclear Gas (Existing) Gas (Peaker) - Retirement -2,000

AI summary The text presents a visual representation of different energy generation sources, including Gas (CCGT - New) with CCS, Coal, Nuclear, and Gas (Existing), with associated costs and timelines from 2021 to 2045. It highlights the retirement of Gas (Peaker) and the inclusion of CCS technology for new CCGT plants.

Gas (Peaker) - Retirement -2,000 0 -1,500 Gas (Existing) - Retirement Coal Gas (CCGT) - Retirement 2021 2025 2030 2035 2040 2045 2021 2025 2030 2035 2040 2045 Coal - Retirement2021 2025 2030 2035 2040 2045 Nuclear Coal - Retirement 49 Nova...

AI summary The text presents graphical data related to the retirement of various energy generation assets, including gas peaker, existing gas, coal, and CCGT, across different years from 2021 to 2045. It also references an initial portfolio study from Nova Scotia Power's IRP Final Report, Appendix J, Page 52 of 245.

QUESTIONS & DISCUSSION INITIAL PORTFOLIO COMPARISONS Nova Scotia Power IRP Final Report Appendix J Page 95 of 245 REGIONAL INTERCONNECTION Scenario Reliability Tie Regional Selected Interconnection • Reliability Tie enabling wind integrati...

AI summary The document discusses the selection of a Reliability Tie for wind integration in various scenarios, with different timelines for implementation and regional interconnection. It outlines the scenarios and their corresponding dates for the Reliability Tie and Regional Interconnection.

adjustments to the effective capacity for wind and some other resources), NS Power was imposing a minimum reserve of 9% in ELCC terms. Our understanding was that one MW of ELCC would support one MW of Resource Insight, Inc. • 5 Water Stree...

AI summary The text discusses adjustments to the effective capacity for wind and other resources, with NS Power imposing a minimum reserve of 9% in ELCC terms. One MW of ELCC is understood to support one MW of resource capacity.

combined cycle plants are financially viable without an assumption that the plants will operate beyond 2050. Ideally, NS Power would simply limit the useful life of a combined cycle to 2050. However, there are at least two reasons why this...

AI summary The document discusses the financial viability of combined cycle gas plants without assuming operation beyond 2050. It highlights challenges in modeling plant retirements by 2050 and suggests limiting end effects calculations and offering resource options with varying lifetimes to align with net zero carbon goals.

b Produce graphs similar to those on the left side of pp. 15-16 of the Modelling Results Release illustrating the following: - the NPV of the replacement cost of the lowest-cost non- emitting alternative capacity resource (or combination o...

AI summary The text requests the production of graphs similar to those on pages 15-16 of the Modelling Results Release, focusing on the NPV of replacement costs for non-emitting alternatives to diesel CTs and natural gas resources.

could result from decommissioning the Mersey facilities.

AI summary The text discusses potential outcomes related to the decommissioning of the Mersey facilities, highlighting possible implications and considerations that may arise from such an action.

utility in evaluating future risks of developing additional CCGTs.

AI summary The text discusses the evaluation of future risks associated with the development of additional Combined Cycle Gas Turbines (CCGTs) by a utility.

Report”, prepared by PSC North America on behalf of Nova Scotia Power Inc. (24th July 2019). 2 Page Natural Forces Memo July 17, 2020 Page 2 of 6 Nova Scotia Power IRP Final Report Appendix J Page 182 of 245 to the more normal or typical s...

AI summary The report discusses the findings from a PSC study on wind generation limits in Nova Scotia's power system, identifying two key scenarios where system limits are reached due to high wind output and AC intertie imports. It suggests reducing AC imports as a more effective remedy than limiting wind generation.

e of 2,766 MW-sec from the PSC study is from Case 01 (revised), which had three thermal generation units on-line. However the PSC report also notes that the system would be stable with only two units. It is also worth noting once more, tha...

AI summary The PSC study indicates that the Nova Scotia system can remain stable with fewer SIR requirements if the AC intertie is not in service or operating at lower levels. Case 2 of the study shows stability with only 1,788 MW-sec of SIR when the AC intertie is out of service, suggesting that the high SIR requirement is tied to the contingency of high import levels on the AC intertie.

nthetic Inertia from Wind Power Stabilize Grids?” – 2016 https://spectrum.ieee.org/energywise/energy/renewables/can-synthetic-inertia- stabilize-power-grids - 2 EPIC Final Report – PG&E – March 2019 https://www.pge.com/pge_global/common/pd...

AI summary The text references a Nova Scotia Power Integrated Resource Plan (IRP) appendix and includes questions about the impact of inertia constraints on generator choices and the evaluation of synthetic inertia and fast regulation services using energy storage and wind turbines.

It is plausible that a zero emissions limit at 2050, 2045 or NS Power has focused the efforts of this IRP on 2035 would choose interconnection over generation if it had modeling a deep decarbonization of the electricity access within the m...

AI summary The text discusses the potential benefits of focusing on interconnection over generation in achieving deep decarbonization of the electricity system by 2035 or earlier. It highlights that NS Power has modeled scenarios with significant reductions in emissions and notes the importance of considering the cost-effectiveness of generation lifecycle decisions.

Provide information regarding whether the battery+ synchronous condenser option for system inertia would also provide system capacity. Page 45 of 53 Nova Scotia Power IRP Final Report Appendix J Page 238 of 245 IRP Participant Comments and...

AI summary The text asks whether the battery plus synchronous condenser option for system inertia would also provide system capacity. It appears in the context of the IRP Final Report and participant comments, but no direct response from NS Power is provided in the excerpt.

0.1 days/yr LOLE Achieved 0.02 days/yr PRM Target (UCAP) 8% Installed Capacity (MW) ELCC (MW) / UCAP ICAP (MW) Dispatchable 1,713 1,633 1,713 Firm Imports 768 682 768 DR 0 0 0 Storage 109 92 92 Variable 1,376 180 180 Hydro 366 337 366 Tota...

AI summary This section presents data on Installed Capacity (MW), Effective Load-Carrying Capability (ELCC), and Ultimate Capacity (UCAP) for various energy sources in Nova Scotia. It highlights the difference between the PRM target and achieved values, as well as the capacity surplus in the system for the year 2045.

19 3.2.C. Average Month-Hour Load and LOLP Nova Scotia Power IRP Final Report Appendix K Page 22 of 264

AI summary The section discusses the average month-hour load and LOLP (Loss of Load Probability) from Nova Scotia Power's IRP Final Report Appendix K.

tia Power IRP Final Report Appendix K Page 171 of 264 2.1C.IMPORT -3 (LIMITED RELIABILITY TIE INERTIA) M I D E L E C . / B A S E D S M / N E T Z E R O 2 0 5 0 / R E G I O N A L I N T E G R AT I O N Scenario Metrics & Evaluation Sensitivity...

AI summary This section of the IRP Final Report evaluates a scenario where the Reliability Tie contributes only 50% of the required system inertia, testing the robustness of the assumption that the Reliability Tie can supply all inertia requirements. The scenario includes adjustments in timing for Reliability Tie and Regional Integration, as well as earlier retirements of some units.

7,067 • Generation mix is generally unchanged from 2.1C on an annual basis • Costs are relatively close to 2.1C on all NPV metrics Essential Grid Services Average Annual Partial Rate Impact • No change from 2.1C 2021-2030 (%) 0.8% 0.6% 202...

AI summary The document provides a summary of generation mix, costs, and CO2 emissions comparisons between two scenarios. It also includes a letter from Nicole Godbout, Director of Regulatory Affairs at Nova Scotia Power Inc, regarding the IRP’s Draft Findings, Action Plan, and Roadmap.

the use of gas/oil steam and diesel CT dispatch? 26. Does Plexos reflect NS Power’s actual operating practice? Resolving the dispatch and reliability contribution of the small hydro units may not result in substantial changes to the modele...

AI summary The document discusses the dispatch and reliability contribution of small hydro units, including Wreck Cove, and their impact on the cost-effective operation of NS Power's system. It notes that Wreck Cove's limited daily water availability affects its dispatch during peak hours, which should be considered alongside DAFOR in determining ELCC and system planning reserve margin.

e identified in the final report to address the reliability issues identified by Bates White and the cost-effective utilization of existing infrastructure to meet the needs for additional CT capacity. Conversion of Coal-to-Gas As previousl...

AI summary The document discusses the need for coal-to-gas conversions at Trenton and Point Tupper Generating Stations to address reliability issues and meet additional CT capacity needs. It also highlights the importance of long-term natural gas transportation planning and the economic benefits of redevelopment of existing natural gas-powered steam turbines.

179164 September 18, 2020 2. Flexibility In contrast to prior IRPs (which specifically sought to develop a long-term “Preferred Resource Plan” from among a set of candidate resource plans), the 2020 IRP results provide a comparison of vari...

AI summary The 2020 Integrated Resource Plan (IRP) emphasizes flexibility in resource planning due to uncertainty in future electric load growth and the need to accommodate changes in technology and government policy. This approach allows NS Power to make informed long-term decisions regarding coal retirements, new capacity additions, and renewable energy generation, while also considering regional integration efforts.

resources. NS Power interprets the additional battery storage seen in this not have explored fully. As was discussed on a call with NS Power, the model did not value sensitivity as a method of wind integration in the absence of the Reliabi...

AI summary NS Power discusses the role of battery storage in wind integration and coal retirement, noting that the model did not fully account for advanced battery applications like synthetic inertia. The inclusion of gas and battery capacity enables earlier coal retirement but increases overall costs compared to the base scenario.

ts, combustion turbines, the letter of comment); rather, the model is constrained by steam unit minimum up and down times (and and wind (presumably for the energy). is penalized by unit start costs) which would suggest that a more flexible...

AI summary The text discusses the use of combustion turbines for inertia and other services, the impact of unit start costs on system flexibility, and the integration of unit commitment costs into optimization models. It also touches on the trade-offs of transmission and reliability measures, and the influence of inertia and reserve constraints on retirement pace.

ies the inertia values by unit that on retirement pace for this reason. More broadly, as the system transitions to a resource mix with more NS Power provided previously. Does “slow inertia” refer to the long start-up times of steam variabl...

AI summary The text discusses the impact of transitioning to a resource mix with more variable generation on system inertia and the role of the reliability tie in providing inertia and enabling wind integration. It also explores the relationship between unit commitment costs and the pace of resource transition.

ling results release and the July 9 stakeholder workshop. In the Resource Screening, the existing CTs are forced to retire and the model economically (16) RII recommends that the findings include a specific discussion of the economics of r...

AI summary The document discusses the economic implications of replacing existing CTs with newer CTs or other fast-ramping generation resources. It highlights that replacing the current fleet would be more expensive and could exacerbate a PRM deficiency, requiring additional CT resources at a higher cost.

ed into peak dispatch? Wouldn’t it make sense to fully dispatch these units at peak hours and reduce the demand periods use of gas/oil steam and diesel CT dispatch? The majority of these parameters have monthly values to reflect changes in...

AI summary The discussion focuses on whether Plexos accurately reflects NS Power’s actual operating practices, particularly regarding dispatch of units during peak hours and the use of gas/oil steam and diesel CT. NS Power asserts that the IRP model aligns with historical dispatch patterns and operational constraints.

cooling systems mentioned in Heritage’s comments. NS Power’s IRP analysis has conclusively shown that As previously mentioned, Heritage Gas has natural gas distribution infrastructure in very sustaining the existing Diesel CT fleet is the...

AI summary Heritage Gas highlights the proximity of its natural gas infrastructure to the aging Burnside CTs and recommends replacing them to address reliability and capacity needs. NS Power's IRP analysis supports sustaining the existing diesel CT fleet as the most economic option. The discussion emphasizes evaluating the existing site for redevelopment or replacement of gas-powered units as part of IRP Action Item #3c.

natural gas-powered steam turbines to provide low-cost, fast-acting generating capacity to the Nova Scotia system.” Coal to Gas Heritage In the Modelling Results, the long-term resource changes emphasize additional natural gas NS Power has...

AI summary The document discusses the transition from coal to natural gas in Nova Scotia's electricity system, highlighting natural gas as a key resource for both near and long-term electricity generation. NS Power has provided various natural gas pricing options to the model, including firm long-term agreements and spot market pricing for coal-to-gas conversions.

acity key requirement of the developing electricity system in both the near and long term. factor units such as the coal-to-gas conversions as modeled.

AI summary The text emphasizes the importance of key requirements for the developing electricity system, both in the near and long term, and mentions factors such as coal-to-gas conversions as modeled.

Draft Roadmap item 1 discusses the need for “advance engineering study work on coal to gas conversions at Trenton and Point Tupper Generating Stations”. The Action Plan should reflect a timeline of completion of this study and scope of the...

AI summary The draft roadmap highlights the need for engineering studies on coal-to-gas conversions at Trenton and Point Tupper Generating Stations, as well as the significant investment required in transmission and distribution assets due to increased electrification. Heritage Gas emphasizes the need for long-term natural gas transportation planning.

Gas Burnside with gas-fired CTs as a cost-effective means to reliably meet the incremental economic firm capacity option for customers. capacity requirements identified in the IRP. NS Power’s Findings and Action Plan have identified that a...

AI summary The document discusses the role of gas-fired combined cycle (CT) units in meeting incremental capacity needs as outlined in the Integrated Resource Plan (IRP). It highlights the need for an engineering study on coal-to-gas conversions and the importance of updating the methodology for calculating Avoided T&D Costs of Demand Side Management (DSM).

given its due in the preferred portfolio solution into the future. … Nova Scotia Power has portfolios are an output of the capacity expansion model and are not produced manually by NS Power. instead opted for a portfolio that calls for new...

AI summary Nova Scotia Power has opted for a portfolio that includes new transmission and fossil fuel assets to meet balancing and peaking requirements. Hydrostor is presented as a cost-effective non-wire alternative solution for transmission. The document also mentions the potential use of clean synchronous generation capacity to advance coal retirements.

ELCC for run-of-river hydro units In two prior memos, we questioned the 95% ELCC for run-of-river hydro units. NS Power has clarified that its staff believes that other than Wreck Cove, “all other hydro assets on the NS Power system includ...

AI summary The document discusses concerns over the 95% ELCC (Effective Load-Carrying Capacity) assigned to run-of-river hydro units by NS Power, arguing that this may not account for operational limitations such as reduced capacity during dry years and limited hours of full-load operation. The analysis highlights discrepancies between the ELCC and actual capacity factors during peak and net peak hours, suggesting a lower ELCC may be more appropriate.

ix L Page 63 of 125 Page 5 process as the results from the work to address electrification impacts on the T&D system become available and the Thermal Plant Depreciation study results are published. With respect to the existing CTs, NSPI ha...

AI summary Heritage Gas raises concerns about the reliability of existing LFO-fired CTs and emphasizes the need for ongoing monitoring in the IRP. NSPI argues that sustaining capital for these units is the most economic approach. Heritage Gas also highlights the importance of ensuring competitive energy supplies and meeting provincial goals.

the electrical grid with the existing natural gas pipeline network, for a more efficient and circular use of resources in the province. An integrated energy system supports the production of more renewable energy including wind power, sola...

AI summary The text discusses the integration of the electrical grid with the existing natural gas pipeline network to enhance resource efficiency and support renewable energy production such as wind, solar, green hydrogen, and RNG. It highlights benefits like energy resiliency, local economic growth, and energy independence.

achieve its objectives without high DER and with the high emissions factor as indicated in the IRP reference scenario? P a g e 24 45 Nova Scotia Power IRP Final Report Appendix L Page 105 of 125

AI summary The text raises a question about whether Nova Scotia Power can achieve its objectives without relying heavily on Distributed Energy Resources (DER) and despite a high emissions factor, as outlined in the Integrated Resource Plan (IRP) reference scenario.

ability during a broad sampling of inertial requirements – this is not in dispute. The system conditions. At this stage, NS Power does not scenario as run does not respect system inertia believe it is appropriate to project “marginal” requ...

AI summary The text discusses the importance of system inertia in the context of wind energy integration, noting that current portfolio scenarios may understate costs due to insufficient consideration of inertial requirements. NS Power acknowledges the need for further analysis on operational strategies to meet these requirements.

2a. Regional Integration (i.e. investment in stronger AREA No comment n/a interconnections to other jurisdictions) is an economic CA Supportive of additional steps to be taken to consider 2020-11-16, 6/21, 8/21 component of the least-cost...

AI summary The text discusses the economic value of regional integration through interconnections and grid investments, such as the Reliability Tie and Regional Interconnection, as part of least-cost planning. It recommends that NS Power commit to planning for potential transmission projects alongside wind integration studies and an all-source RFP.

s, grid investments, and operating practices.’ -‘ While NS Power notes that it modeled the Reliability Tie as providing only synchronized inertia (enabling additional wind integration), it may provide other benefits, such as reserves, load...

AI summary The text discusses the potential benefits of the Reliability Tie, including synchronized inertia, reserves, load following, and non-firm import capability. It notes that the Reliability Tie may reduce the need for steam units to operate at minimum load, potentially shifting generation from domestic thermal sources to less-expensive imported energy. Further analysis and coordination with an all-source RFP are recommended.

ty and replace retiring combustion turbines thermal capacity in all resource plans. These units CanREA No comment n/a Page 23 of 43 Nova Scotia Power IRP Final Report Appendix M Page 24 of 43 Nova Scotia Power IRP Summary of Stakeholder Co...

AI summary The document discusses the replacement of retiring combustion turbines with thermal capacity in all resource plans, with CanREA providing no comment on the matter.

next IRP.’ Heritage Supports continued study of T&D costs 2020-09-12; p. 4/6, 6/6 Other Stakeholders No comments n/a 3.0 Initiate a Thermal Plant Retirement, Redevelopment CA Generally supports however, recommends all-source 2020-09-18; p....

AI summary The document discusses the development of an Integrated Resource Plan (IRP) and the retirement and replacement of thermal plants, including the need for a depreciation study. It highlights support for continued study of T&D costs and recommendations for all-source RFPs instead of wind procurement.

covery strategy to Item 3d: ‘[recommends] action plan should commit to better align depreciation with updated useful lives for planning for potential transmission projects in parallel generation assets. Invest sustaining capital into to bo...

AI summary The text discusses recommendations for aligning depreciation with updated useful lives for generation assets, investing in capital for thermal units, and developing plans for replacing natural gas-powered steam turbines. It also mentions the need for parallel planning on transmission projects and wind integration studies.

carbon energy source to meet the province’s environmental goals.’ Supports item 3c: -‘The conversion or replacement of the now 45-year old CT’s provides an opportunity to both address the reliability issues with the existing CT’s and addre...

AI summary The text discusses the replacement of 45-year-old combustion turbines (CTs) to address reliability issues and increase CT capacity. Heritage Gas recommends identifying a specific action item in the final report to address these issues and utilize existing infrastructure cost-effectively.

existing firm capacity as well as renewable generation.

AI summary The text mentions existing firm capacity and renewable generation, indicating a focus on current energy infrastructure and the integration of renewable energy sources.

• electricity imports - o existing interconnections with neighbouring jurisdictions are not sufficient to replace the energy and capacity that Belledune provides without significant capital investment and lead time to construct transmissio...

AI summary The text discusses challenges in replacing Belledune's energy and capacity through electricity imports, citing risks from market uncertainty, infrastructure delays, and high costs. NB Power's concerns about market-priced energy and Quebec's skepticism about federal infrastructure funding are highlighted. Bates White recommends a 'circuit breaker' in NSPI's IRP process to address regional integration delays and cost overruns.

Action Plan (3c) Roadmap (3) turbines and NSPI's 45-year-old existing assets. The new turbines are gas-fired and 50 MW (as opposed to NSPI's fleet of 33 MW, 45-year old diesel- fired unit

AI summary The text discusses an action plan and roadmap involving the replacement of NSPI's 45-year-old 33 MW diesel-fired unit with new 50 MW gas-fired turbines.