N-1Report
15 passages
1 7.0 Transmission Planning....................................................................................................... 51 2 7.1 System Description ...................................................................................
AI summary The document outlines transmission planning topics including system description, design criteria, bulk power system reviews, remedial action schemes, NPCC directory assessments, transmission life extension, interconnection requests, reliability ties, and specific studies like the Western Valley Transmission System Phase II and Hydrogen Load Impact Studies.
.6 Western Valley Transmission System – Phase II Study ............................................................ 57 14 7.7 Hydrogen Load Impact Studies .......................................................................................
AI summary The document outlines a 2024 10-Year System Outlook, including studies on transmission development, hydrogen load impacts, wind integration, and system inertia. It lists sections such as Western Valley Transmission Phase II, EMT studies for wind integration, and NSPI system inertia analysis, with the filing date of June 27, 2024.
1 • An updated list of Queued System Impact Studies in Section 4.0. 2 • A summary of environmental and emissions regulatory requirements, as well as forecast 3 compliance in Section 5.0. Section 5.0 also includes projections of the level o...
AI summary The document outlines updates to system impact studies, environmental compliance requirements, renewable energy projections, and transmission planning. It references NS Power's Evergreen IRP update, the Province's 2030 Clean Power Plan, and NS Power's The Path to 2030 report aligned with 2030 decarbonization goals, citing regulatory decisions M11017 and M11458.
Executed 29 - D 700 21-Apr-23 Cape 0.56 0.56 82S- Solar 30-Sep-23 SIS N/A Breton 303 Complete 31 - T 686 23-Jan-23 Cumberland 340.00 340.00 L-8001 Wind 01-Dec-25 SIS in NRIS Progress 32 - D 711 05-Jul-23 Halifax 0.48 0.48 139H- Solar 31-Oc...
AI summary The text presents a list of projects with details such as queue numbers, request dates, counties, megawatts, and service types, including solar and wind projects, along with their statuses and service dates. It is part of a 10-Year System Outlook document filed on June 27, 2024.
1 Group 32 or beyond requires EMT analysis as part of their SIS to determine if additional equipment 2 is required to support the integration of the new generation resource. 3 4 4.2 OATT Transmission Service Queue 5 6 As of June 07, 2024 t...
AI summary The document discusses the requirement for EMT analysis in Group 32 or beyond for SIS and provides details on two active requests in the OATT Transmission Queue as of June 7, 2024, including their project types, locations, and statuses.
ity and energy and the location of the load ultimately served by 15 the capacity and energy transmitted are deemed confidential under Section 17.2 of the OATT 31 16 and not available to the public on the Open Access Same-Time Information S...
AI summary The document discusses the confidentiality of certain information related to the Open Access Transmission Tariff (OATT) under Section 17.2, as well as the design and execution of system upgrades for Transmission Service Request (TSR) 400 and the ongoing Facilities Study (FAC) for TSR 411.
2,49 2,680 2,760 2,814 2,850 2,867 2,891 2,903 2,915 2,927 W Total Firm Capacity (F + V) 8 + Surplus / - Deficit (W - C) -213 -40 42 75 83 34 15 -22 -67 -124 Reserve Margin % [(W - 11% 18% 22% 23% 24% 21% 21% 19% 17% 15% A)/A] 1 2 DATE FIL...
AI summary The document outlines the existing transmission system in Nova Scotia, detailing the length and configuration of transmission lines at various voltage levels, including 69 kV, 138 kV, 230 kV, and 345 kV. It references Figure 21, which shows the major facilities in service in 2024.
024 Page 51 of 67 2024 10-Year System Outlook Non-Confidential 1 The 138 kV transmission system is approximately 1,871 km in length and comprises 303 km of 2 steel structures and 1,568 km of wood pole lines. 3 4 The 69 kV transmission syst...
AI summary The document outlines the length and composition of Nova Scotia's 138 kV and 69 kV transmission systems, as well as its interconnections with New Brunswick and Newfoundland. It also describes the transmission design criteria used by NS Power to ensure system adequacy and security following faults.
The criteria require the overall adequacy and security of 25 the interconnected power system to be maintained following a fault on and disconnection of any 26 single system component. 27 28 29 DATE FILED: June 27, 2024 Page 52 of 67 2024 1...
AI summary The text outlines criteria for maintaining the adequacy and security of the interconnected power system following a fault or disconnection of a single component, and mentions the 2024 10-Year System Outlook related to the Bulk Power System (BPS).
nductor span while recording ambient temperature. This enables the NSPSO to confirm 3 that the rating of each line is appropriate. 4 5 7.4 New Large-Load Customer Interconnection Requests 6 7 NS Power continued to receive large-load reques...
AI summary The document discusses the handling of new large-load customer interconnection requests by NS Power in 2023, including the completion and ongoing assessment of various studies for projects ranging from 1 MVA to 900 MW. It also describes the Reliability Tie, a proposed 345 kV AC transmission line between Nova Scotia and New Brunswick, aimed at improving system reliability and supporting renewable energy integration.
g the integration of additional variable 27 renewable generation on the Nova Scotia system. The Reliability Tie is not anticipated to provide 28 incremental access to firm capacity or energy. 29 DATE FILED: June 27, 2024 Page 56 of 67 2024...
AI summary NS Power is developing the Reliability Tie with NB Power, targeting a 2028 in-service date, to support increased integration of variable renewable generation. This aligns with the 2020 IRP and the 2023 Evergreen IRP update. The Western Valley Transmission System – Phase II Study is underway to address transmission line capacity, clearance, and age issues over a 15-year planning horizon.
d to 13 address transmission line capacity, clearance, and age issues in the Western Valley over a 15-year 14 transmission planning horizon. In particular, the following 69 kV lines were targeted: 15 • L-5531 (13V-Gulch to 15V-Sissiboo) 16...
AI summary The document outlines a 15-year transmission planning study in the Western Valley, focusing on addressing issues with 69 kV transmission lines. Four options are assessed, including restoring and upgrading lines to higher temperature ratings and rebuilding with different conductor types.
24 Page 57 of 67 2024 10-Year System Outlook Non-Confidential
AI summary This document presents the 2024 10-Year System Outlook, a non-confidential report outlining the long-term planning and forecasting for the electricity system in Nova Scotia.
in local regions as there are some challenges with using 17 numerous IBR units to manage System Strength. This requirement will continue to be analyzed 18 as part of SIS and other grid studies. DATE FILED: June 27, 2024 Page 61 of 67 2024...
AI summary The document outlines the 2024 10-Year System Outlook, focusing on transmission development and the need for reinforcing the NS Power transmission system to ensure reliability and compliance with standards. Major projects are based on preliminary assessments and will be subject to further studies and approvals.
1 4. Installation of a new 25/33/42 MVA, 138 kV-25 kV substation on Susie Lake Crescent in 2 2024/25. NS Power is working with Nova Scotia Department of Public Works to acquire 3 their property for the 142H-Susie Lake substation site. 4 5....
AI summary The text discusses the installation of new substations and transformers in Nova Scotia, including the 25/33/42 MVA substation on Susie Lake Crescent and a 10 MVA transformer for a new mine site. It also covers the relocation of the 129H-Kearney Lake substation and transmission development plans for 2024, including the replacement of a mobile substation.
N-3NSPI (NSUARB) RIR-1 - RIR-18
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e amount of the year that at least 29 one pole is available for power transmission. Monopole availability provides sufficient 30 capacity for the transmission of the full NS Block. Date Filed: September 19, 2024 NSPI (NSUARB) IR-3 Page 1 o...
AI summary The document discusses monopole availability percentages for power transmission infrastructure, referencing Newfoundland and Labrador Hydro's (NLH) Resource Adequacy Plan and the Labrador-Island Link (LIL) reliability metrics. It highlights a 2.34% Equivalent Forced Outage Rate (EqFOR) for LIL and includes performance data for Muskrat Falls generating stations.
2024 10-Year System Outlook Report (NSUARB M11764) NSPI Responses to NSUARB Information Requests NON-CONFIDENTIAL 1 Request IR-11: 2 3 On pages 31-32, NS Power stated: “Each transmission SIS initiated for Study Group 32 or 4 beyond require...
AI summary NSPI responds to NSUARB's IR-11 request by listing transmission projects in Study Groups 32-35 and noting that EMT analysis determines equipment needs for integrating new generation resources. The response includes a table of 14 projects, with one marked as withdrawn.
2024 10-Year System Outlook Report (NSUARB M11764) NSPI Responses to NSUARB Information Requests NON-CONFIDENTIAL 1 • Established Appendix H to include Technical Rationales. 2 3 • Alignment with NERC Standards: 4 • Table 3 Bus Section Faul...
AI summary NSPI updated the 2024 10-Year System Outlook Report by adding Appendix H with technical rationales and aligning with NERC standards via specific fault criteria. The NSUARB-led review of Directory 7, divided between two task forces, has progressed through draft revisions, with TFCP's work completed and TFSP's ongoing. Key milestones include open process reviews and final approvals by December 2024.
for comment prior to being posted for Open Process Review in the September- 29 October 2024 timeframe. The TFSP review of Section 5 and Appendices A and C is still 30 in progress. Date Filed: September 19, 2024 NSPI (NSUARB) IR-12 Page 2 o...
AI summary NSPI submitted the 2024 10-Year System Outlook Report (NSUARB M11764) for Open Process Review in September-October 2024. The TFSP review of Section 5 and Appendices A/C is ongoing, with NSPI responding to NSUARB information requests. Filed September 19, 2024.
NSPI (NSUARB) IR-13 Page 2 of 2 2024 10-Year System Outlook Report (NSUARB M11764) NSPI Responses to NSUARB Information Requests NON-CONFIDENTIAL 1 Request IR-14: 2 3 In response to Board IR-11 in Matter M11221 regarding the Reliability Ti...
AI summary NSPI provided an update on the Reliability Tie project, stating that the Facilities Study for TSR 411 was completed in Q1 2024, with outputs integrated into ongoing engineering design. The project is expected to begin construction in 2025 and conclude in 2027, with a capital application expected to be filed with the NSUARB in Q3 2024.
lead to cascade tripping for loss of the NS/NB tieline under high import conditions. It should be noted that when NSPI stays connected to the Eastern interconnection the RoCoF will be low. • Survey NSPI existing legacy generation plants an...
AI summary The text discusses concerns related to frequency control and system strength, particularly focusing on the risk of cascade tripping under high import conditions. It highlights the need to assess NSPI's legacy generation plants and DER for RoCoF ride through capabilities, and recommends updates to interconnection requirements and grid code compliance.
culations are performed considering specific IBR connection location while the inertia requirements are estimated more at a system level. For System Strength Analysis, the following criteria is used: • Maintain SCR of at least 3 at existin...
AI summary The document discusses system strength analysis and frequency control criteria, focusing on maintaining system stability with IBR connections, SCR requirements, and assessing impacts of retiring units and new interconnections on system strength and power quality.
ould cause a drop in reliability for customers. MHI recommends maintaining, and where possible improving the grid conditions to enable generation and customer load to ride-through system disturbances. As an example, with results of the fir...
AI summary The text discusses the impact of replacing traditional generation with IBR on grid reliability, highlighting the need for grid improvements to maintain system stability. It notes that while IBR can provide frequency support, System Strength support is still under development and not commercially viable in many cases.
run. Simulations were run iteratively to get the online synchronous generation dispatched to the minimum needed to maintain a stable and well damped frequency response for loss of the NB tie.
AI summary Simulations were run iteratively to determine the minimum online synchronous generation required to maintain a stable and well-damped frequency response in the event of a loss of the NB tie.
the vicinity to the tie line terminus. Two area were noted with the potential to improve the ability of the greater area to increase IBR resources and operate over a wider range of system conditions. 6.6.1 Second Tie with NB The addition o...
AI summary The text discusses grid improvements, including adding a second 345kV transmission line to New Brunswick to enhance system strength and reduce RoCoF, and reinforcing transmission in western Nova Scotia to support growing load and accommodate wind projects.
95171NSUARB (NSPI) IR-1 to IR-18
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Document: 305605 Date Filed: Aug. 27, 2024 NSUARB (NS Power) Page 3 of 6 1 2 Request IR-7: 3 On page 28 of 67, Figure 11 presents forecasted sustaining capital investments by unit in 4 graphical form. Please provide this investment informa...
AI summary The document outlines five regulatory requests (IR-7 to IR-11) directed at NS Power, seeking details on capital investments, project timelines, withdrawn PPA documentation, utilization factor usage by other utilities, and transmission study requirements. Requests focus on transparency in procurement, project approvals, and technical methodologies for system integration.
Document: 305605 Date Filed: Aug. 27, 2024 NSUARB (NS Power) Page 4 of 6 1 Reference NPCC Directory 1 and Directory 7 reviews, pages 54-55: 2 a) NS Power noted that voting by NPCC members on the updates proposed by the working 3 group on t...
AI summary NS Power provides updates on NPCC Directory reviews, discusses IBR grid impacts requiring additional equipment, and outlines the Reliability Tie study status. Requests focus on remedial capital projects, transmission planning, and system reliability analyses.
Transmission Planning analysis is ongoing with the next study report 27 anticipated by Q1 2024. 28 (b) The Company plans to submit a Class 1 Environmental Assessment Application with 29 NS Environment and Climate Change in Q4 2023. 30 (c)...
AI summary Transmission planning for the project is ongoing, with the next study report expected by Q1 2024. A Class 1 Environmental Assessment Application will be submitted to NS Environment and Climate Change in Q4 2023. Detailed design is set to begin in Q4 2023, with construction anticipated to start in 2025 and finish in 2027. Negotiations with NB Power on an intertie agreement are ongoing, and a capital application for the Reliability Tie is planned for Q3 2024.
Document: 305605 Date Filed: Aug. 27, 2024 NSUARB (NS Power) Page 5 of 6 1 Please provide the latest update regarding this project. 2 3 Request IR-15: 4 On page 59, NS Power stated that in collaboration with Manitoba Hydro International (M...
AI summary The document contains regulatory requests to NS Power regarding project updates, integration of inverter-based resources (IBR), expansion of the 10-Year System Outlook, and planning reserve criteria. Requests include filing a report on IBR integration, assessing distribution system inclusion in the System Outlook, and clarifying confidence in meeting winter peak demand and reserve margin targets.
96453Board Letter re: Accepted as filed
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January 16, 2025 [email protected] Mark Peachey Manager, Regulatory System Planning & Innovation Nova Scotia Power Inc. 1223 Lower Water Street Halifax, NS B3J 3S8 Dear Mr. Peachey: M11764 – Nova Scotia Power Inc. – 2024 10-Year Syst...
AI summary Nova Scotia Power Inc. submitted its 2024 10-Year System Outlook Report, required under wholesale electricity market rules. The report addresses transmission planning, DSM programs, generation planning, and compliance requirements. The Board notes the report is informational, based on best available data at the time of filing.
noted the scale of changes described in the 2024 SO Report and raised the following issues for the Board’s attention: Progress on Evergreen IRP; Reliability Tie Risks; and Geothermal System Resources. Each of those issues were addressed in...
AI summary The Commission raised concerns about NS Power's progress on the Evergreen IRP, reliability tie risks, and geothermal resources. NS Power responded by emphasizing provincial accountability for hybrid peak studies, prioritizing NSIESO transition over joint dispatch, and proposing DLR devices to mitigate icing risks on reliability tie lines.
icing potential and that it intends to install Dynamic Line Rating (DLR) devices on segments of the L8006 transmission intertie which would provide real-time situational awareness of icing conditions. The Board has reviewed the information...
AI summary The Board accepts the 2024 10-Year System Outlook Report and mandates its publication on OASIS. NSPSO plans to install Dynamic Line Rating (DLR) devices on the L8006 transmission intertie to monitor icing conditions. The Energy Reform (2024) Act establishes the NSIESO to enhance system reliability, coordinate power planning, and forecast electricity demand.
electricity resources for the Province for the short, medium and long terms; and • conduct independent planning for energy resources, demand-side management and transmission. As the Board noted in its decision letter about the Evergreen IR...
AI summary The Board emphasizes NS Power's responsibility to continue energy resource planning, demand-side management, and transmission activities until the NSIESO assumes these roles. It highlights the urgency of meeting 2030 targets with significant capital projects and the need for NS Power to engage with government agencies on policy developments.