Topic:"Energy Efficiency Resource Assessment Model" in M12551

Application for Annually Adjusted Rates for 2026 Redacted 1 LIST OF FIGURES 6 In its Orders dated March 20, 2024 (2024 AAR proceeding)2 and March 25, 2025 (2025 AAR 7 proceeding)3 , the Board issued several directives. The following lists...

AI summary The document outlines directives from the Board's Orders dated March 20, 2024, and March 25, 2025, related to the 2026 AAR application. These directives include developing a time-varying pricing structure, providing sensitivity analyses for wind resource delays, comparing forecasted and actual New Brunswick imports, and explaining the revised One Part Real Time Pricing Tariff.

ENERGY CREDIT The Energy Credit is equal to the average incremental cost of generation as defined under Optional Generation Load Following.

AI summary The Energy Credit is defined as the average incremental cost of generation under Optional Generation Load Following. This definition is illustrated in an accompanying image.

SALES, GENERATION AND DEMAND ANALYSIS FOR THE YEAR ENDING DECEMBER 31, 2026 ( 1) DOMESTIC ( 2) SMALL GENERAL ( 3) GENERAL ( 4) GENERAL LARGE (1) MWH SALES 5,286,337,241 376,992,742 2,308,034,614 363,766,784 (2) ENERGY LINE 8.2% 8.2% 7.9% 5...

AI summary The document provides a detailed analysis of sales, generation, and demand for the year ending December 31, 2026, including metrics such as energy sales, losses, system demand, and contribution percentages across different customer classes.

Annual Peak of ATL 2,356,954 Annual Energy Requirement of ATL 11,303,785,142 System Coincident Load Factor 54.748044% Wind Generation (ERIS) Biomass/ Biogas Other Total Comfit $ $ $ 275,302.28 2,869.65 5,892,525 $ $272,644 $1,439 6,119,648...

AI summary The text provides data on annual peak and energy requirements for ATL, along with detailed tables showing financial figures related to wind generation, imports, exports, and total FAM related costs over various periods.

BTL BUTU GRLF 1P - RTP ELIADC Shore Power EBS Category Jan-26 Feb-26 Mar-26 Apr-26 May-26 Jun-26 Jul-26 Aug-26 Sep-26 Oct-26 Nov-26 Dec-26 Annual Unmetered 7,158,277 6,891,341 6,911,547 6,769,126 7,135,422 6,913,303 6,921,957 6,602,437 7,2...

AI summary The text presents a table of unmetered energy usage data across different months and an annual total, likely related to energy consumption or production metrics.

ENERGY BALANCING SERVICE TARIFF Page 2 of 3 Renewable to Retail generation adjusted by the deduction of transmission locational losses, as applicable to the geographic zone in which the generating facility is interconnected, over its aggre...

AI summary The Energy Balancing Service Tariff outlines requirements for renewable energy generation and load balancing, including locational loss adjustments, compliance with regulations, and spill capacity approvals by NS Power. The LRS must ensure renewable generation aligns with consumption over a compliance period.

STANDBY SERVICE Standby Service is a supplemental generation capacity service provided to Licensed Retail Suppliers (LRS). The service is provided in combination with Energy Balancing Service under the Energy Balancing Service Tariff. The...

AI summary Standby Service is a supplemental generation capacity service provided to Licensed Retail Suppliers (LRS) in Nova Scotia, consisting of capacity adequacy and top-up capacity components. It is provided alongside Energy Balancing Service under the Energy Balancing Service Tariff and is subject to the LRS Terms and Conditions.

SPECIAL CONDITIONS - (1) The Port Authority owns and is responsible for the maintenance and operation of all electrical equipment required for the supply of port electricity to docked ships other than the meters and metering transformers s...

AI summary The document outlines special conditions for electricity supply to ships at the port, including responsibilities for equipment maintenance, metering arrangements, and power factor requirements. The Port Authority and NSPI have defined roles, and customers may be required to contribute to capital costs for special metering.

STANDBY SERVICE Standby Service is a supplemental generation capacity service provided to Licensed Retail Suppliers (LRS). The service is provided in combination with Energy Balancing Service under the Energy Balancing Service Tariff. The...

AI summary Standby Service is a supplemental generation capacity service provided to Licensed Retail Suppliers (LRS) in Nova Scotia. It includes capacity adequacy service and top-up capacity service, both related to meeting energy balancing obligations and system adequacy standards.

NON-CONFIDENTIAL 1 (iii) The assertion is that fewer new renewable resources may have been selected in the 2 hypothetical load case; however, these are not dispatchable units, with their energy 3 being integrated on the system when availab...

AI summary The text discusses the impact of load decrement methodology on renewable resource selection and generation cost distribution, highlighting concerns about GHG OBPS costs and challenges in reconfiguring the generation mix with non-dispatchable renewables. It also notes the complexity of modeling decremental costs with increasing renewable penetration.

REDACTED 1 Request IR-6: 2 3 In its decision on the 2025 AARs, the Board stated: 4 5 6 The Board agrees with Mr. Wilson that it is prudent to have a sensitivity analysis for potential delayed wind resources in the 2026 AARs. In the 2025 7...

AI summary The Board directed NS Power to provide sensitivity analyses for potential delays in wind resource in-service dates for the 2026 AARs. NS Power states that a 'no new wind' scenario is not plausible but was included in its submission. The Board questions why this scenario was submitted and requests clarification on the Q3 2025 wind forecast and the difference between the forecast and anticipated full operation.

REDACTED 1 (iii) Any known annual change in existing environmental regulation such as emission 2 limits are incorporated into the PLEXOS model as they may impact the volume of 3 imports selected by the model. Any new environmental regulati...

AI summary The text discusses the incorporation of environmental regulations into the PLEXOS model, adjusting historical average import volumes based on factors like unit availability and transmission outages to determine the economic timing and volume of imports.

NON-CONFIDENTIAL 1 fuel costs through application of the forecasted average annual marginal fuel cost-based 2 rate component. 3 4 (b) Yes, NS Power anticipates that either SO2, or other annual air emissions limits, will 5 continue to impai...

AI summary NS Power discusses challenges in calculating avoided costs due to SO2 emissions limits and the impact of renewable energy standards on load decrement analysis. These factors contribute to anomalies in system modeling and compliance costs for customer classes. Adjustments to air emissions allowances and wind generation were considered but found to be arbitrary.

Annually Adjusted Rates for 2026 (M12551) NSPI Responses to REI Information Requests 1 Request IR-2: 22 cost is highly dependent on the timing of the pricing, which varies according to seasonal, 23 daily, and hourly market fluctuations. Ty...

AI summary NSPI discusses the cost of HFO generation at Tuft's Cove, noting its high cost relative to natural gas and seasonal market fluctuations. The company also mentions limited access to 2025 AAR forecasts due to a cyber event, with actual solid fuel plant hours exceeding forecasts by 12%.

6 (f) Muskrat Falls, Labrador Island Link, and Maritime Link have been operating reliably in 7 steady state for some time. NS Power believes that the probability of Maritime Link energy 8 import deviation from forecast is now similar to th...

AI summary NS Power discusses the reliability of energy imports from Muskrat Falls, Labrador Island Link, and Maritime Link, noting that deviations are now comparable to New Brunswick. They use a combination of forecasts and historical data for surplus energy predictions. Increased fleet flexibility from SO2 CoV reduces the cost impact of deviations, allowing reliance on coal-based generation instead of higher-cost imports. PHP load exclusion is noted in marginal cost forecasts.

ergy requirements (MWh) under each of the BUTU Tariff and the Municipal Tariff under the reciprocal and non-reciprocal billing approaches, as well as the forecast Spill Tariff energy in each scenario. NS Power provided its response in NSPI...

AI summary The text discusses the impact of reciprocal and non-reciprocal billing arrangements on energy spill from the Ellershouse Wind Farm. Under a non-reciprocal arrangement, the MEUs spill significantly less energy to NS Power, which is more beneficial when BUTU energy is more expensive. The MEUs requested legislative changes to eliminate the need for reciprocal arrangements, which were addressed in the More Access to Energy Act. The Board directed NS Power to further review the issue in the 2026 AAR application.

STANDBY SERVICE Standby Service is a supplemental generation capacity service provided to Licensed Retail Suppliers (LRS). The service is provided in combination with Energy Balancing Service under the Energy Balancing Service Tariff. The...

AI summary Standby Service is a supplemental generation capacity service offered to Licensed Retail Suppliers (LRS) in Nova Scotia. It includes capacity adequacy service to meet system adequacy standards and top-up capacity service to support energy delivery through the Energy Balancing Service Tariff.

STANDBY SERVICE Standby Service is a supplemental generation capacity service provided to Licensed Retail Suppliers (LRS). The service is provided in combination with Energy Balancing Service under the Energy Balancing Service Tariff. The...

AI summary Standby Service is a supplemental generation capacity service provided to Licensed Retail Suppliers (LRS) in combination with Energy Balancing Service under the Energy Balancing Service Tariff. It includes capacity adequacy service and top-up capacity service to support energy delivery during imbalances between load and generation.

SPECIAL CONDITIONS - (1) The Port Authority owns and is responsible for the maintenance and operation of all electrical equipment required for the supply of port electricity to docked ships other than the meters and metering transformers s...

AI summary This section outlines special conditions related to the provision of port electricity by NSPI to the Port Authority. It specifies responsibilities for equipment maintenance, operational requirements, metering arrangements, and power factor maintenance.

STANDBY SERVICE Standby Service is a supplemental generation capacity service provided to Licensed Retail Suppliers (LRS). The service is provided in combination with Energy Balancing Service under the Energy Balancing Service Tariff. The...

AI summary Standby Service is a supplemental generation capacity service provided to Licensed Retail Suppliers (LRS) in Nova Scotia, consisting of capacity adequacy and top-up capacity components. It is provided alongside Energy Balancing Service under the Energy Balancing Service Tariff and is governed by LRS Terms and Conditions.

The Energy Charge is made up of the following components: Energy Charge Components cents per kWh Fixed Cost Adder from Energy Balancing Service Tariff 2.155 Annually Adjusted Energy Savings Credit 0.000 Annual Energy Cost Adjustment 2.171...

AI summary The Energy Charge comprises several components, including a Fixed Cost Adder from the Energy Balancing Service Tariff, an Annually Adjusted Energy Savings Credit, and an Annual Energy Cost Adjustment, totaling 4.326 cents per kWh. It applies to the Load Serving Retailer's monthly displaced energy on NS Power's generation system, calculated as the total monthly load minus the top-up quantity under the Energy Balancing Service Tariff.

FOR THE YEAR ENDING DECEMBER 31, 2026 (1) MWH (2) ENERGY LINE (3) ENERGY (4) CLASS NON- (5) SYSTEM (6) SYSTEM COINCIDENT COINCIDENT COINCIDENT (7) LINE (8) DEMAND SYSTEM (9) SYSTEM COIN. PEAK COINCIDENT (10) 3CP (11) 3CP SALES LOSSES REQUI...

AI summary The document presents a detailed breakdown of energy sales, losses, and demand factors across various customer classes for the year ending December 31, 2026. It includes data on energy losses, system requirements, and demand factors for different sectors such as domestic, small general, general, large general, small industrial, medium industrial, large industrial, municipal, and unmetered.

Annual Peak of ATL 2,356,954 Annual Energy Requirement of ATL 11,303,785,142 O- 4 0-! 4 1 1 F4 kWh Requirements ATL Classes Domestic Total 707,116,004 662,646,274 625,765,329 481,109,226 389,926,477 315,832,492 344,330,438 345,113,243 297,...

AI summary The document provides data on the annual peak and energy requirements of ATL, along with detailed kWh consumption across various classes such as Domestic Total, Small General, Large General, Small Industrial, Medium Industrial, and Large Industrial. The figures show consumption trends over a period.

STANDBY SERVICE Standby Service is a supplemental generation capacity service provided to Licensed Retail Suppliers (LRS). The service is provided in combination with Energy Balancing Service under the Energy Balancing Service Tariff. The...

AI summary Standby Service is a supplemental generation capacity service provided to Licensed Retail Suppliers (LRS) in Nova Scotia, consisting of capacity adequacy and top-up capacity components. It is provided alongside Energy Balancing Service under the Energy Balancing Service Tariff and is governed by LRS Terms and Conditions.

SPECIAL CONDITIONS (1) The Port Authority owns and is responsible for the maintenance and operation of all electrical equipment required for the supply of port electricity to docked ships other than the meters and - metering transformers s...

AI summary The Port Authority and NSPI have defined roles and responsibilities regarding electrical equipment, metering, and operational procedures for port electricity supply. Special conditions include metering responsibilities, staff availability, scheduling, metering costs, transformer losses, and power factor requirements.

STANDBY SERVICE Standby Service is a supplemental generation capacity service provided to Licensed Retail Suppliers (LRS). The service is provided in combination with Energy Balancing Service under the Energy Balancing Service Tariff. The...

AI summary Standby Service is a supplemental generation capacity service provided to Licensed Retail Suppliers (LRS) in Nova Scotia. It includes capacity adequacy and top-up capacity services, both tied to the Energy Balancing Service Tariff. The service ensures LRS meet adequacy standards during generation outages and supports energy delivery during imbalances.

STANDBY SERVICE Standby Service is a supplemental generation capacity service provided to Licensed Retail Suppliers (LRS). The service is provided in combination with Energy Balancing Service under the Energy Balancing Service Tariff. The...

AI summary Standby Service provides supplemental generation capacity to Licensed Retail Suppliers (LRS) and is offered in combination with Energy Balancing Service. It has two components: capacity adequacy service and top-up capacity service, both aimed at ensuring reliability and balancing energy delivery in the Nova Scotia electricity system.

16 Reference: Energy Balancing Service Tariff, pages 31-32 and Appendix F2. - 17 (a) Please compare the forecasted export sales for 2025 and 2026 and provide 18 an explanation. - 19 (b) Please explain how the transmission loss factor is ca...

AI summary The document requests explanations and comparisons related to the Energy Balancing Service Tariff, including forecasted export sales, transmission loss factor calculation, and percentage changes in EBS components compared to 2025 rates.

l and Purchased Power Model.17 17 - 2025 PLEXOS AAR F&PP model is based on the 2024 Q3 forecast F&PP model, with updated system assumptions, including commodity pricing update as of 2024-08-16. 1. In stating the above, is NS Power saying i...

AI summary The text discusses the 2025 PLEXOS AAR F&PP model used by NS Power, with assumptions based on August 2024 data. It raises questions about model accuracy, data timeliness, and the identification of highest variable cost generators. The preamble also references economic dispatch and environmental legislation, as well as forecast accuracy assessments via FAM reporting.

a capital work order CI C0053699 identified as a subsequent submittal in the 2023 ACE Plan. In what quarter does NS Power plan to file this Capital Work Order? Reference: Appendix F2, F3 and F4. 1. For each cross-referenced document from t...

AI summary The text references a capital work order (CI C0053699) related to the 2023 ACE Plan and requests information about NS Power's filing timeline, exhibit numbers, document access, and explanations for forecasted export sales, transmission loss factors, and tariff changes. It also asks for detailed analysis of percentage changes in EBS and Standby Service Tariff components compared to 2025 rates.

ate on Items Arising from 2024 and 2025 Annually Adjusted Rates Proceedings (January 31, 2025), Matter No. M11989. [E](#page-1-3)xhibit N-2, Matter No. M11989, CA RIR-5(b). [E](#page-1-5)xhibit N-1, Appendix J, p. 2. [E](#page-1-7)xhibit N...

AI summary The document outlines a regulatory proceeding related to annually adjusted rates for 2024 and 2025, including questions about the marginal system capacity for 2026, the impact of removing load served under the 1P-RTP Tariff, and adjustments to Appendix B2 using the SO2 method. It also requests cost recovery summaries for the proposed 1P-RTP and an alternate version.

APPLICABILITY - (1) An LRS taking service under this Energy Balancing Service Tariff shall also take service under the Open Access Transmission Tariff(OATT), the Standby Service Tariff, and the Renewable to Retail Market Transition Tariff....

AI summary The Energy Balancing Service Tariff requires LRS to take service under the OATT, Standby Service Tariff, and Renewable to Retail Market Transition Tariff. It outlines how hourly top-up and spill quantities are determined based on load and generation adjustments, and requires NS Power approval for maximum spill capacity.

STANDBY SERVICE Standby Service is a supplemental generation capacity service provided to Licensed Retail Suppliers (LRS). The service is provided in combination with Energy Balancing Service under the Energy Balancing Service Tariff. The...

AI summary Standby Service is a supplemental generation capacity service provided to Licensed Retail Suppliers (LRS) under the Energy Balancing Service Tariff. It has two components: capacity adequacy service and top-up capacity service, both aimed at ensuring the reliability of the Nova Scotia electricity system.