Topic:"Renewable Energy" in M12551

Application for Annually Adjusted Rates for 2026 Redacted 1 TABLE OF CONTENTS 2 3 1.0 Introduction 7 4 1.1 Prior AAR Proceeding Directives 8 5 1.2 Board Directive regarding Time-varying Pricing Structure for AARs 9 6 2.0 Marginal Cost Anal...

AI summary The document outlines an application for annually adjusted rates for 2026, including sections on marginal cost analysis, tariff structures, and various board directives related to pricing and billing procedures. It covers topics such as load following, real-time pricing, shore power, wholesale market tariffs, and renewable to retail market tariffs.

1 Figure 11: Renewable to Retail Transition Tariff Charges by Cost Components Energy Charge by Components (cents per kWh) 2025 2026 Variance Fixed Cost Adder from EBS Tariff 3.264 2.166 (1.099) Annually Adjusted Energy Savings Credit 0.000...

AI summary Figure 11 presents the Renewable to Retail Transition Tariff Charges by Cost Components for 2025 and 2026, showing changes in energy and demand charges. Energy charges include a Fixed Cost Adder from EBS Tariff, an Annual Energy Cost Adjustment, and a total energy charge. Demand charges include a Demand Charge from Standby Service Tariff and a total demand charge.

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 presents 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 various customer classes and industrial sectors.

Monthly Fuel Cost Allocation Jan-26 Feb-26 Mar-26 Apr-26 May-26 Jun-26 Jul-26 Aug-26 Sep-26 Oct-26 Nov-26 Dec-26 Total IPP $1,089,522 $1,308,985 $1,789,401 $1,774,269 $1,644,728 $1,527,824 $1,253,560 $1,142,692 $1,514,565 $1,430,960 $1,813...

AI summary The document presents a detailed breakdown of monthly fuel cost allocations for various energy sources and entities, including IPP and Comfit, across different time periods from January 2026 to December 2026. The data includes total costs for different categories such as Wind NRIS and Wind ERIS, highlighting significant variations in expenses over time.

Annual Peak of ATL 2,356,954 Annual Energy Requirement of ATL 11,303,785,142 System Coincident Load Factor 54.748044% Steam Plant $ 847,049 $ 847,049 $ - $ - $ (463,743) $ 463,743 $ - $ 383,306 $ 463,743 $ - Hydro Plant $ 699,665 $ 699,665...

AI summary The document provides data on the annual peak and energy requirement of ATL, along with financial figures related to various generation plants such as Steam, Hydro, Wind, and Gas Turbine, as well as Batteries and Transmission. It includes costs, adjustments, and total generation plant values.

AVAILABILITY This Energy Balancing Service Tariff is applicable to the LRS in order to facilitate the purchase of renewable low-impact electricity by RtR Customers. This Energy Balancing Service Tariff is provided under the following terms...

AI summary The Energy Balancing Service Tariff applies to the LRS to enable the purchase of renewable low-impact electricity by RtR Customers, subject to having a valid LRS Participation Agreement with NS Power and providing service to RtR Customers.

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 applies to LRS taking service under this tariff, requiring them to also take service under the OATT, Standby Service Tariff, and Renewable to Retail Market Transition Tariff. The service is based on metered energy quantities and is independent of the LRS' forecasts. Hourly top-up and spill quantities are determined based on energy supply and demand at the delivery point.

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.

2026 AAR Application Appendix F1 Page 3 of 9 REDACTED (CONFIDENTIAL INFORMATION REMOVED) ENERGY BALANCING SERVICE TARIFF Page 3 of 3 Renewable to Retail

AI summary The document references the 'Renewable to Retail' component of the Energy Balancing Service Tariff, indicating a focus on renewable energy integration into retail energy markets.

2026 AAR Application Appendix F1 Page 4 of 9 REDACTED (CONFIDENTIAL INFORMATION REMOVED) STANDBY SERVICE TARIFF Page 1 of 4 Renewable to Retail

AI summary This document is a page from the 2026 AAR Application Appendix F1, which discusses the Standby Service Tariff under the Renewable to Retail section. The content is partially redacted, indicating that some information has been removed for confidentiality.

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.

2026 AAR Application Appendix F1 Page 8 of 9 REDACTED (CONFIDENTIAL INFORMATION REMOVED) RENEWABLE TO RETAIL MARKET TRANSITION TARIFF Page 1 of 2 Renewable to Retail

AI summary This document outlines the 'Renewable to Retail' transition tariff, which is part of the 2026 AAR Application Appendix F1. The page is redacted, indicating that confidential information has been removed.

2026 AAR Application Appendix F1 Page 9 of 9 REDACTED (CONFIDENTIAL INFORMATION REMOVED) RENEWABLE TO RETAIL MARKET TRANSITION TARIFF Page 2 of 2 Renewable to Retail

AI summary The document refers to the Renewable to Retail Market Transition Tariff, indicating a focus on transitioning renewable energy into retail markets. It is part of a larger application and includes redacted confidential information.

Unit Utilization – Utilization Factor - Traditionally capacity factor was used to estimate future demand on units - Given increasing renewables and required flexibility, necessary to also consider the effects of unit starts, operating hour...

AI summary The document discusses the shift from using capacity factor to considering unit starts, operating hours, and unit health in estimating future demand, especially with the increasing integration of renewables and the need for flexibility.

ENERGY BALANCING SERVICE The Energy Balancing Service is a supplemental generation service provided to Licenced Retail Suppliers (LRS) in respect of the Licenced Retail Supplier's Renewable to Retail (RtR) Customers utilizing the productio...

AI summary The Energy Balancing Service is a supplemental generation service provided to Licensed Retail Suppliers (LRS) for their Renewable to Retail (RtR) Customers. It ensures service reliability by delivering complementary energy and receiving surplus generation, and must be used in conjunction with Standby Service under the Standby Service Tariff.

AVAILABILITY This Energy Balancing Service Tariff is applicable to the LRS in order to facilitate the purchase of renewable low-impact electricity by RtR Customers. This Energy Balancing Service Tariff is provided under the following terms...

AI summary The Energy Balancing Service Tariff applies to the LRS to enable the purchase of renewable low-impact electricity by RtR Customers, subject to a valid LRS Participation Agreement with NS Power and service provision to RtR Customers.

ENERGY BALANCING SERVICE TARIFF Renewable to Retail Page 2 of 3 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 to align with customer load, considering locational and distribution losses. It also sets conditions for qualifying for the service, including compliance with regulations and approval of spill capacity by NS Power.

ENERGY BALANCING SERVICE TARIFF Page 3 of 3 Renewable to Retail

AI summary The document discusses the Renewable to Retail section of the Energy Balancing Service Tariff, focusing on the integration of renewable energy into the retail market.

RENEWABLE TO RETAIL MARKET TRANSITION TARIFF Page 2 of 2 Renewable to Retail

AI summary The document introduces the Renewable to Retail Market Transition Tariff, focusing on the transition from renewable energy sources to the retail market. It outlines the framework for integrating renewable energy into the retail electricity market.

STANDBY SERVICE TARIFF Page 1 of 4 Renewable to Retail

AI summary The document introduces the Standby Service Tariff, focusing on the 'Renewable to Retail' section, which likely outlines how renewable energy sources are integrated into retail energy services.

AVAILABILITY This Standby Service Tariff is applicable to the LRS in order to facilitate the purchase of renewable low-impact electricity by Renewable to Retail (RtR) Customers. This Standby Service Tariff is provided under the following t...

AI summary The Standby Service Tariff applies to the Local Retail Service (LRS) to enable Renewable to Retail (RtR) Customers to purchase renewable low-impact electricity. The tariff is subject to two conditions: a valid LRS Participation Agreement with NS Power and the provision of service to RtR Customers.

NS Power's Proposal - 1. The adjustment for the projected imbalance in the recovery of the avoided fuel costs should be eliminated. The energy charges under these tariffs should be made of hourly marginal costs. The fixed cost adders shoul...

AI summary NS Power proposes eliminating the adjustment for the projected imbalance in the recovery of avoided fuel costs in the 1P-RTP tariff and instead using hourly marginal costs for energy charges. It also suggests that future adjustments to the 1P-RTP tariffs should be made as part of General Rate Applications, similar to the OATT. These changes aim to address forecasting challenges related to emissions and non-dispatchable generation sources.

NON-CONFIDENTIAL 1 Request IR-4: 2 3 In the 2025 AAR proceeding, NS Power stated that the impact of recent emissions standards 4 on the 1P-RTP tariff "will continue to adversely affect the methodology until system dispatch 5 is no longer t...

AI summary NS Power argues that the SO2 emissions limit will no longer be a constraint for the 1P-RTP tariff design once renewable energy sources are added to the system. It also raises concerns about the reliability of the current avoided fuel cost methodology due to the complexity of the air emission market. The request asks NS Power to clarify its position and explain how the system composition might change if the load served under the 1P-RTP tariff was not present.

NON-CONFIDENTIAL 1 GHG emissions regulations. When one of the annual air emissions limits is relaxed, one of 2 the remaining limits becomes a binding constraint. Another challenge is posed by the 3 growing share of the non-dispatchable mus...

AI summary The text discusses challenges related to GHG emissions regulations and the impact of renewable energy integration on compliance costs. It highlights how relaxing one emission limit can create a new binding constraint and how the interaction between RES and OBPS may lead to unfair cost distribution. The planning process for generation resources is also examined, with a focus on non-dispatchable renewables and their effect on system capacity and compliance costs.

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.

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.

REDACTED 1 Response IR-1: 2 3 (a) Demand and energy for 2026 are estimated based on 2024 hourly load shapes and 2018 4 hourly wind production and assume that BUTU is only provided up to the actual hourly 5 demand of the MEUs. The estimates...

AI summary The response estimates demand and energy for 2026 using 2024 hourly load shapes and 2018 hourly wind production data, assuming BUTU is only provided up to the actual hourly demand of the MEUs.

Annually Adjusted Rates for 2026 (NSEB M12551) NSPI Responses to NSEB Information Requests Request IR-1: Appendix A2 presents the annual marginal generation costs by month. (a) Please explain why for February and March. (b) Please provide...

AI summary The document discusses NSPI's response to NSEB's information request regarding annual marginal generation costs, explaining variations in February and March, and the exclusion of Output Based Pricing System costs. It also addresses the forecast of marginal costs for Peak in June and July, citing the integration of renewable energy and GHG emission regulations.

7 (c) are correlated to coal generation which has in the 2026 AAR 8 forecast relative to the 2025 AAR Application. Coal generation is due to the 9 increased emissions limit for SO2. 10 11 (d) The category " " includes new wind developments...

AI summary The text discusses changes in coal generation related to increased SO2 emissions limits and new wind developments contributing to increased generation forecasts. It also notes updated forecasts for renewable facilities and cost increases due to changes in the Renewable Electricity Regulations affecting biomass generation rates.

REDACTED 1 Request IR-7: 2 3 NS Power did not provide scenarios of delays to wind resources scheduled to go into service 4 in 2025 and 2026. 5 6 (a) Please provide a table identifying each wind asset that was scheduled to go into service 7...

AI summary The document discusses a request for information regarding delays in wind resources scheduled for service in 2025 and 2026, and the response includes a correction to a sensitivity analysis related to no new wind resources.

NON-CONFIDENTIAL 1 (b) PHP Load must be the denominator in the calculation of the rate as this is the energy to be 2 metered and billed to the customer. The additional battery losses associated with serving 3 this customer cannot be distin...

AI summary The text discusses the calculation of rates using PHP Load as the denominator, the cost of curtailment associated with the PHP Wind Farm coming online in August 2026, and the use of WACOW (Weighted Average Cost of Wind) to determine the cost of additional curtailments in PLEXOS modeling.

REDACTED 50%, 75%, 125% and 150% of forecasted Surplus Energy to better understand the range of potential impacts on forecasted marginal and average costs? If not, why not? (g) Regarding the updated 2026 PHP CBL load, please confirm whethe...

AI summary The document includes a series of questions regarding the impact of various scenarios on marginal and average costs, the updated 2026 PHP CBL load, and the inclusion of new wind generation data in models. It also references a regulatory emission limit and model results for 2026. A response mentions the annual regulatory SO2 emission limit and model results.

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.

Annually Adjusted Rates for 2026 (M12551) NSPI Responses to REI Information Requests 1 Request IR-17: 29 owed to the RtR customer when avoided costs exceed system fuel costs, and explain 1 whether NS Power believes this outcome is consiste...

AI summary NS Power explains that the Annually Adjusted Energy Savings Credit (AAESC) mechanism applies to the Licensed Retail Supplier's (LRS) Energy Charge under the Renewable to Retail Market Transition Tariff (RTT), not directly to end-use RtR customers. The AAESC reduces the Energy Charge but does not result in a negative charge or payout.

Annually Adjusted Rates for 2026 (M12551) NSPI Responses to REI Information Requests 1 Request IR-18: 27 bundled service to RtR, including the MW amount, customer class, load profile, and 28 timing of transition. 29 30 (b) What specific as...

AI summary The document discusses responses to information requests regarding annually adjusted rates for 2026, including assumptions about load served under RTR, firm capacity contributions from third-party generators, and the validity of savings credits under specific circumstances.

Annually Adjusted Rates for 2026 REI IR-18 Attachment 1 Page 1 of 41 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Nova Scotia Power Renewable to Retail Project RtR Design Basis Report Robert Cary & Associates Inc. 28th August, 2015

AI summary This document is the 'RtR Design Basis Report' prepared by Robert Cary & Associates Inc. for the Renewable to Retail Project under Nova Scotia Power, dated August 28, 2015. It is part of a regulatory proceeding related to annually adjusted rates for 2026.

1.1 Design Basis Report This report provides an overview of the proposed implementation of a Renewable-to-Retail (RtR) market framework in the Province of Nova Scotia. It includes discussion of options considered and the basis for selectio...

AI summary This Design Basis Report outlines the proposed implementation of a Renewable-to-Retail (RtR) market framework in Nova Scotia. It discusses considered options, the rationale behind selected design elements, and how the framework will be implemented through specific tariffs and instruments.

1.2 Role of Robert Cary & Associates Inc Robert Cary & Associates Inc (RCAI) was engaged by Nova Scotia Power Inc (NS Power or Company) in September, 2014 to assist and make recommendations to the Company with respect to the development in...

AI summary Robert Cary & Associates Inc (RCAI) was engaged by Nova Scotia Power Inc to assist in developing the framework for the Renewable to Retail (RtR) market in Nova Scotia, as outlined in the Electricity Act. Mr. Cary has extensive experience in electricity market design, particularly in Ontario and Nova Scotia, including work on tariff design and renewable energy trading systems.

1.3 Overview of the RtR Market The RtR market is to be established in accordance with the Electricity Act (Nova Scotia) as amended by the Electricity Reform (2013) Act (Nova Scotia). 1 The Market Design White Paper dated 2nd October, 2014...

AI summary The RtR market is established under the Electricity Act (Nova Scotia) and the Electricity Reform (2013) Act (Nova Scotia), with supporting documents including a Market Design White Paper, an Embedded Cost Recovery White Paper, and a Renewable to Retail Project Design basis development presentation.

Annually Adjusted Rates for 2026 REI IR-18 Attachment 1 Page 6 of 41 REDACTED (CONFIDENTIAL INFORMATION REMOVED) The RtR supply chain will comprise: - Generators of renewable low impact electricity located in Nova Scotia, as certified by t...

AI summary The document outlines the RtR (Regulated Rate) supply chain, which involves certified renewable generators, licensed retail suppliers (LRSs), and retail customers in Nova Scotia. NS Power will provide services such as physical delivery, backup, and balancing to ensure reliability for RtR customers. The framework assumes all RtR tariffs and cost recovery apply universally, regardless of generator location.

1.4 Executive Summary of the Market Design as Proposed The RtR Market design is embodied in a number of instruments: • Each RtR generator is required to execute a Wholesale Market Participation Agreement by which it is bound by the relevan...

AI summary The proposed Renewable to Retail (RtR) Market design requires each RtR generator to execute a Wholesale Market Participation Agreement and a Generator Interconnection Agreement, which bind them to the relevant provisions of the Wholesale and RtR Market Rules and the Open Access Transmission Tariff (OATT).

3.5 Behind-the-Meter RtR supply During the stakeholder consultations, it was suggested by a stakeholder that the RtR framework should accommodate a model which would permit a LRS to connect a renewable low impact generator directly to a nu...

AI summary The document discusses a proposed model for Behind-the-Meter (B-t-M) Real Time Retail (RtR) supply, where a Local Resource Supplier (LRS) connects renewable generators to multiple customers behind a single NS Power meter. This could shift cost burdens to NS Power and its remaining customers, conflicting with the 'no-harm' provisions of the Electricity Act.

3.7.2 Aggregated Billings to the LRS The following tariffs will use charge determinants that reflect the aggregate of all RtR customer loads: - Transmission service under the OATT, including: - o Network service under schedule 10; - o Anci...

AI summary This section outlines the tariffs that will use charge determinants based on the aggregate of all RtR customer loads, including transmission service under the OATT and standby service.

Annually Adjusted Rates for 2026 REI IR-18 Attachment 1 Page 18 of 41 REDACTED (CONFIDENTIAL INFORMATION REMOVED) The financial market option as presented would have left NS Power Bundled Service tariffs in place for all customers. Under t...

AI summary The document discusses the adoption of a disaggregated tariff approach for the Real Time Retail (RtR) market by NS Power, which provides greater transparency compared to other alternatives. The approach involves two categories of tariffs: the Distribution Tariff based on individual customer meter readings, and LRS tariffs based on aggregated data. The existing OATT is generally applicable, except for Schedule 4, which is replaced by Schedule 4A for RtR Market Participants.

4.2 Avoiding Negative Impacts on Other Customers The tariff design was strongly driven by the Electricity Act requirement that other remaining customers of NS Power are not to be negatively affected if some retail customers choose to purch...

AI summary The tariff design ensures that other customers of NS Power are not negatively impacted if some retail customers opt to buy renewable electricity from an LRS. This is achieved through a disaggregated tariff approach that uses the same Cost of Service model and cost allocation as the Bundled Service rate setting, ensuring NS Power bears the same aggregate risk for RtR load as for Bundled Service load.

5.3.3 Self-supply of Top-up Consideration has been given to the potential for an LRS to self-supply top-up service from a generator other than its normal supplier(s) of renewable low impact electricity, as is permitted under the OATT. Thre...

AI summary The document evaluates three scenarios for self-supply of top-up energy by an LRS under the OATT. All scenarios are deemed impractical, with the third option of importing energy for top-up being unviable in the near term due to increased costs and complexity.

Expertise covers three core areas: - ♦ Consulting in market evolution and development in Ontario and the Maritime Provinces, including market rules development and evolution, system coordination or integration, renewable energy integration...

AI summary The text outlines the expertise of an individual in energy market development, Ontario electricity sector consulting, and corporate governance. It highlights experience in renewable energy, market rules, regulatory processes, and leadership in utility companies and associations.

Atlantic Provinces / Maritime region (2001 to date) Atlantic Region coordination: reports to the Council of Atlantic Premiers energy committee on the opportunities for greater regional integration and on the lessons to be learned from revi...

AI summary The document outlines coordination efforts in the Atlantic Region for regional energy integration and lessons from electricity governance reviews. It details engagements in New Brunswick and Nova Scotia related to market design, tariff development, and renewable energy trading systems.

Ontario Power Authority, now merged into the IESO (2007 to date) Assistance in the development of: - a generic form of peaker contract based on previous Clean Energy Supply contract models; - Feed-in-Tariff (version 1) rules and contracts,...

AI summary The text discusses the development of various energy contracts and programs, including a generic peaker contract, Feed-in-Tariff rules, and Clean Energy Standard Offer Programs, based on previous models.

Assistance in the negotiation of: - Lower Mattagami Hydroelectric supply agreement negotiations with OPG for the supply of electricity from the 450 MW expansion of the Lower Mattagami system; - Early Movers successor contract negotiations,...

AI summary The text outlines various negotiation support activities, including hydroelectric supply agreements, contract negotiations for energy generation projects, and energy storage program development, all supported by the OPA.

NON-CONFIDENTIAL 1 Request IR-6: 2 3 Refer to M12551, Exhibit N-1, the Application, Section 7.3.1.2 Annually Adjusted Energy 4 Savings Credit, page 35 of 45, at lines 10-18, which states: 5 6 7.3.1.2 Annually Adjusted Energy Savings Credit...

AI summary The document discusses NS Power's rationale for not projecting savings in the Annually Adjusted Energy Savings Credit category for 2026. It explains that NS Power must maintain firm capacity to serve all customers, even if some load departs to the RtR market, and that wind generation is intermittent, requiring top-up services.

M12551 Application, page. 35 of 45, lines 10-17. 1 avoid maintaining firm capacity and planning reserves. While the Company considers the 2 marginal Effective Load Carrying Capability (ELCC) of third-party renewable generation 3 in resourc...

AI summary The document discusses NS Power's position that third-party renewable generation's marginal Effective Load Carrying Capability (ELCC) does not significantly reduce its obligation to maintain firm capacity. It also notes that no new information has been received from existing LRS to support a change in the 2026 Annually Adjusted Energy Savings Credit value.

Submissions In conclusion, the SBA respectfully submits that the Board should consider risk allocation of the proposed AARs in the presence of volatile marginal costs, ensure administrative costs are welljustified, and acknowledge the need...

AI summary The SBA submits that the Board should consider risk allocation of proposed AARs in light of volatile marginal costs, ensure administrative costs are well-justified, and provide clarity on deferred RtR costs to ensure fairness across customer classes.

2026 COSS Methodology Disproportionately impacts RtR Customers The RtR tariffs were developed and approved under a different cost allocation model and therefore do not reflect the substantial shifts in demand-related allocations now propos...

AI summary The 2026 COSS methodology disproportionately impacts RtR customers by shifting costs from energy to demand, increasing demand charges and misaligning cost allocation with the current framework. This could undermine competition in the RtR market and contradict legislative objectives, requiring a tariff review before Q4 2026.

The SBA also notes the request for the deferral of Renewable-to-Retail (RtR) costs is being made without knowing the magnitude nor any explicit details regarding the timing of recovery of the deferred amount. The SBA recognizes that NS Pow...

AI summary The SBA highlights concerns regarding the deferral of Renewable-to-Retail (RtR) costs, noting that NS Power lacks clear details on the timing and magnitude of recovery. While the AAR process is not the appropriate forum to define the recovery mechanism, the absence of such a mechanism may lead to unintended cross-subsidization across customer classes and time periods.

NS Power Response: NS Power acknowledges the SBA's concern and agrees that the magnitude and timing of recovery of RtR costs cannot yet be precisely defined, given that the RtR framework and associated market arrangements are still under d...

AI summary NS Power acknowledges the SBA's concerns regarding the uncertainty in the recovery of Renewable-to-Retail (RtR) costs, noting that the framework is still under development. NS Power emphasizes that deferral of costs is intended to be recovered exclusively from the RtR market, and the proposed deferral account aims to ensure transparency and regulatory oversight.

4.0 EVIDENCE OF THE MUNICIPAL ELECTRIC UTILITIES - The MEUs' evidence and submissions relate to the implementation of billing arrangements under - the BUTU and Spill Tariffs and reflect constructive engagement with NS Power on administrati...

AI summary The Municipal Electric Utilities (MEUs) provided evidence regarding the implementation of billing arrangements under the BUTU and Spill Tariffs. They intend to apply the full output of the Ellershouse Wind Farm against MEU consumption using a non-reciprocal billing arrangement, and no longer seek flexibility in billing arrangements due to legislative changes.

DATE FILED: January 27, 2026 Page 13 of 22 1 5.0 EVIDENCE OF RENEWALL ENERGY INC. 2 3 REI framed its evidence and submission around the use of the proposed Cost of Service Study 4 (COSS) methodology, RtR Tariff review and design, SS Tariff...

AI summary REI submitted evidence related to the proposed Cost of Service Study (COSS) methodology, RtR Tariff review, and SS Tariff calculations. REI requested the recalculation of 2026 AAR rates using the most recently approved COSS methodology or that the rates be interim. NS Power responded that the 2026 COSS was developed collaboratively with Customer Representatives and that the 2026-2027 GRA proposed methodology remains open for the Board's final determination.

reflect a framework that aligns marginal cost-based energy pricing with embedded-cost recovery safeguards, including the EBS, SS, and RTT Tariffs. Further, the development of, and participation in, the RtR market remains transitional, as e...

AI summary NS Power argues that initiating a new tariff redesign proceeding at this time would be premature due to ongoing developments in the RtR market and the transition of the IESO-NS. They suggest that structural tariff enhancements should be considered after greater operational experience and regulatory certainty are achieved.

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.

AVAILABILITY This Standby Service Tariff is applicable to the LRS in order to facilitate the purchase of renewable low-impact electricity by Renewable to Retail (RtR) Customers. This Standby Service Tariff is provided under the following t...

AI summary The Standby Service Tariff applies to the LRS to enable Renewable to Retail (RtR) Customers to purchase renewable low-impact electricity, subject to the LRS having a valid Participation Agreement with NS Power and providing service to RtR Customers.

Where: - o "k" is the number of otherwise applicable bundled service rate classes to RtR customers of an LRS. - "CMPFDi" is hourly kW Class Monthly Peak Firm Demand of the LRS firm load in each tariff class at the time of system coincident...

AI summary The text defines key terms and variables used in the calculation of bundled service rate classes for Renewable-to-Retail (RtR) customers under Load Replacement Service (LRS). It outlines parameters such as hourly kW Class Monthly Peak Firm Demand and Class Monthly Demand Adjustment Factor.

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.

AVAILABILITY This Standby Service Tariff is applicable to the LRS in order to facilitate the purchase of renewable low-impact electricity by Renewable to Retail (RtR) Customers. This Standby Service Tariff is provided under the following t...

AI summary The Standby Service Tariff applies to Load Replacement Service (LRS) to enable Renewable to Retail (RtR) Customers to purchase renewable low-impact electricity. The tariff is provided under specific terms, including a valid LRS Participation Agreement with NS Power and service to RtR Customers.

DETERMINATION OF MONTHLY STANDBY CONTRACT DEMAND Monthly Standby Contract Demand (MSCD) in kW is determined using the following formula: $$MSCD = LWPFD - min (LWPFD, (\sum_{ii=1}^{nn} CCi GCi)/(1+PR))$$ Where: • "LWPFD" is LRS Winter Peak...

AI summary The document outlines the formula for calculating Monthly Standby Contract Demand (MSCD) in kW, which involves subtracting a calculated value from LRS Winter Peak Firm Demand (LWPFD). The LWPFD is determined by summing the product of Class Monthly Peak Firm Demand (CMPFDi) and Class Monthly Demand Adjustment Factor (CMDAFi) for each applicable rate class.

STANDBY SERVICE TARIFF Page 4 of 4 Renewable to Retail (4) Nothing contained in this Standby Service Tariff or any service agreement shall be construed as affecting or in any way limiting the right of NS Power to make application to the No...

AI summary The Standby Service Tariff outlines that NS Power retains the right to apply to the Nova Scotia Energy Board for changes to rates, terms, and conditions, including those related to the Renewable to Retail Market Transition Tariff.

the wholesale customer must provide: - 1. Documentation demonstrating that the import capacity will be supported by the external control area and afforded the same curtailment priority as the external control area's native load. - 2. Docum...

AI summary The wholesale customer must provide documentation ensuring import capacity is supported by the external control area and has firm transmission to the NSPI system. If an Internal or External Resource fails to deliver energy or capacity, the wholesale customer must reimburse NSPI for incurred costs, with potential adjustments to the CCF if agreed upon or adjudicated by the Board.

2026 AAR Compliance Filing Appendix A Page 15 of 25 REDACTED (CONFIDENTIAL INFORMATION REMOVED) - (iv.) Any export transactions utilizing energy from the Internal Resource will be recallable by the NSPSO, up to the amount contracted to the...

AI summary The document outlines procedures for managing energy and capacity from internal and external resources in the event of resource adequacy needs. It specifies the recallability of energy from internal resources and the conditions under which external resources can be utilized, including documentation requirements for capacity and transmission.

2026 AAR Compliance Filing Appendix A Page 17 of 25 REDACTED (CONFIDENTIAL INFORMATION REMOVED) ENERGY BALANCING SERVICE TARIFF Page 1 of 3 Renewable to Retail

AI summary The document outlines the 'Energy Balancing Service Tariff' under the 'Renewable to Retail' section, which is part of the 2026 AAR Compliance Filing. This section discusses energy balancing services related to renewable energy integration into the retail market.

ENERGY BALANCING SERVICE The Energy Balancing Service is a supplemental generation service provided to Licenced Retail Suppliers (LRS) in respect of the Licenced Retail Supplier's Renewable to Retail (RtR) Customers utilizing the productio...

AI summary The Energy Balancing Service is a supplemental generation service provided to Licenced Retail Suppliers (LRS) for their Renewable to Retail (RtR) Customers. It ensures service reliability by delivering complementary energy and receiving surplus generation, and must be used with Standby Service under the Standby Service Tariff.

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 multiple tariffs, including OATT, Standby Service, and Renewable to Retail Market Transition. The service is based on metered energy and is independent of forecasts. Hourly top-up and spill quantities are calculated based on distribution and transmission losses and renewable electricity supply.

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 the conditions for renewable energy generation to be adjusted for transmission and distribution losses, and sets requirements for LRS to manage energy imbalances. NS Power must approve spill capacity limits and may impose production limits if mitigation proposals are unsatisfactory.

2026 AAR Compliance Filing Appendix A Page 19 of 25 REDACTED (CONFIDENTIAL INFORMATION REMOVED) ENERGY BALANCING SERVICE TARIFF Page 3 of 3 Renewable to Retail

AI summary The document discusses the 'Renewable to Retail' component of the Energy Balancing Service Tariff, focusing on how renewable energy is integrated into the retail energy market. This section is part of a larger compliance filing related to Annually Adjusted Rates in 2026.

AVAILABILITY This Standby Service Tariff is applicable to the LRS in order to facilitate the purchase of renewable low-impact electricity by Renewable to Retail (RtR) Customers. This Standby Service Tariff is provided under the following t...

AI summary The Standby Service Tariff applies to Load Serving Retailers (LRS) to enable Renewable to Retail (RtR) Customers to purchase renewable low-impact electricity. The LRS must have a valid Participation Agreement with Nova Scotia Power and must be serving RtR Customers.

Renewable to Retail Classes Jan, Feb, Dec Mar, Apr May, Jun Jul, Aug, Sep Oct, Nov Domestic 1.00 1.34 2.13 2.26 1.65 Small General 1.00 1.24 1.62 1.59 1.35 General 1.00 1.21 1.47 1.36 1.20 Large General 1.00 0.99 0.93 0.86 0.99 Small Indus...

AI summary The table presents rate classes and associated multipliers for different customer categories under the Renewable to Retail initiative. The Planning Reserve (PR) is defined as a percentage based on the Northeast Power Coordinating Council's planning criteria, currently set at 20%.

Annual Peak of ATL 2,356,954 Annual Energy Requirement of ATL 11,303,785,142 O- 4 0-! 4 1 1 F4 Purchased Power - Biomass Non-Wind Purchases $1,933,751 $3,023,273 $1,501,824 $2,810,809 $1,568,024 $3,357,425 $71,916 $1,846,185 $1,476,419 $3,...

AI summary The document presents data on energy and power purchases, including annual peak and energy requirements, with detailed breakdowns of costs for various sources such as biomass, wind, and COMFIT. It includes figures for different periods and categories of power generation and purchase.

2026 AAR Compliance Filing Appendix H Page 17 of 25 REDACTED (CONFIDENTIAL INFORMATION REMOVED) ENERGY BALANCING SERVICE TARIFF Page 1 of 3 Renewable to Retail

AI summary This document outlines the Energy Balancing Service Tariff under the Renewable to Retail program, indicating its role in managing energy supply and demand within the Nova Scotia power system.

ENERGY BALANCING SERVICE The Energy Balancing Service is a supplemental generation service provided to Licenced Retail Suppliers (LRS) in respect of the Licenced Retail Supplier's Renewable to Retail (RtR) Customers utilizing the productio...

AI summary The Energy Balancing Service is a supplemental generation service provided to Licenced Retail Suppliers (LRS) for their Renewable to Retail (RtR) Customers. It ensures service reliability by delivering complementary energy and receiving surplus generation, and must be used with Standby Service under the Standby Service Tariff.

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 to align with customer load, considering transmission and distribution losses. It specifies that the Load Serving Resource (LRS) must conform to regulations and that maximum spill capacity must be approved by NS Power to ensure compliance with annual energy contracts.

AVAILABILITY This Standby Service Tariff is applicable to the LRS in order to facilitate the purchase of renewable low-impact electricity by Renewable to Retail (RtR) Customers. This Standby Service Tariff is provided under the following t...

AI summary The Standby Service Tariff applies to Load Serving Retailers (LRS) to enable Renewable to Retail (RtR) Customers to purchase renewable low-impact electricity. The LRS must have a valid Participation Agreement with Nova Scotia Power and must be serving RtR Customers.

2026 AAR Compliance Filing Appendix H Page 25 of 25 REDACTED (CONFIDENTIAL INFORMATION REMOVED) RENEWABLE TO RETAIL MARKET TRANSITION TARIFF Page 2 of 2 Renewable to Retail

AI summary This document outlines the 'Renewable to Retail' section of the RENEWABLE TO RETAIL MARKET TRANSITION TARIFF, which appears to address the transition of renewable energy resources into the retail market. However, the content is redacted and does not provide specific details.

2. NS Power is directed as follows: - 1. If the updated Cost of Service Study is not approved as filed, currently before the Board in the NS Power GRA matter M12451, NS Power is directed to make any required adjustments to the 2026 AARs in...

AI summary The Board directs NS Power to adjust AARs if the Cost of Service Study is not approved, update the 2027 AAR with information on wind resources and Maritime Link sensitivity, compare forecasted and actual New Brunswick imports, and engage stakeholders on tariff amendments by April 30, 2026. The 2027 AAR must be filed by November 6, 2026.

AVAILABILITY This Energy Balancing Service Tariff is applicable to the LRS in order to facilitate the purchase of renewable low-impact electricity by RtR Customers. This Energy Balancing Service Tariff is provided under the following terms...

AI summary The Energy Balancing Service Tariff is available to the LRS for facilitating the purchase of renewable low-impact electricity by RtR Customers, subject to having a valid LRS Participation Agreement with NS Power and providing service to RtR Customers.

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 This section outlines the applicability of the Energy Balancing Service Tariff, including required additional services, determination of top-up and spill quantities, qualification requirements, and spill capacity approval by NS Power.

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.

RENEWABLE TO RETAIL MARKET TRANSITION TARIFF Renewable to Retail

AI summary The document introduces the 'Renewable to Retail' initiative, which aims to facilitate the transition of renewable energy from generation to retail markets. This section provides an overview of the initiative without delving into specific details.

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.

APPLICABILITY - (1) The RTT is applicable to the LRS, and is in addition to (and not in substitution of) any charges owing by the LRS to NS Power under the Open Access Transmission Tariff (OATT), the Standby Service Tariff, or the Energy B...

AI summary The RTT applies to Load Serving Retailers (LRS) in addition to other tariffs. It includes energy and demand charges with adjustments based on forecasted savings and avoided costs. The LRS must also take service under the OATT and other tariffs. The RTT includes annual adjustments and credits based on forecasted performance.

RENEWABLE TO RETAIL MARKET TRANSITION TARIFF Renewable to Retail

AI summary The document introduces the Renewable to Retail Market Transition Tariff, outlining the transition process from renewable energy sources to the retail market. It provides context for the tariff and references key entities and acronyms involved in the process.

19 generator type. 1 (b) For each of 2023, 2024 and 2025 to date and forecast to year-end, please 2 provide the hours and percentage of hours of the year that each generation 3 class was actually the marginal unit on the system. Please ide...

AI summary The document requests detailed information on generator type performance, including actual and forecasted marginal unit hours, explanations for variances, and details on the PLEXOS model used for forecasting. It also asks about OBPS compliance and the use of updated data in forecasting.

1 Request IR-3: - 2 Preamble: Based on the principles of economic dispatch, and recognizing the influence 3 of environmental legislation, REI expects that the highest variable cost generators would 4 generally be: diesel combustion turbine...

AI summary The document requests NS Power to confirm or refute REI's assertion that diesel combustion turbines, natural gas generation from Tufts Cove, and imports are the highest variable cost generators. It also asks for a comparison between PLEXOS model forecasts and actual data on marginal generator hours for 2024 and 2025.

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.

1. NS Power has stated that higher SO2 emission limits have resulted in lower marginal costs. Please confirm the SO2 emissions associated with NS Power production in 2026, the applicable SO2 emission limits, and the remaining headroom unde...

AI summary The document presents a series of questions to NS Power regarding SO2 emissions, marginal costs, surplus energy delivery, and sensitivity analyses related to commodity price volatility, Muskrat Surplus Energy, and wind project delays. It also requests confirmation on the inclusion of the Goose Harbour Lake wind farm in the 2026 PHP CBL load and a comparison of marginal and average costs under different tariff scenarios.

rates. Where the change is greater than 10% for a particular component, please provide a detailed explanation of the driver(s), including the relative contribution of each driver to the total change. Reference: Appendix F3, page 137 Standb...

AI summary The document requests detailed explanations regarding the Interruptible Service Credit and its inclusion in the 2026 Standby Demand Charge calculation. It also highlights the need for closer scrutiny of the Annual Energy Cost Adjustment due to the increasing influence of environmental costs and regulations on marginal costs.

Request IR-4: In the 2025 AAR proceeding, NS Power stated that the impact of recent emissions standards on the 1P-RTP tariff "will continue to adversely affect the methodology until system dispatch is no longer tightly constrained by the S...

AI summary NS Power argues that the SO2 emissions limit will no longer be an issue for the 1P-RTP tariff after renewable energy sources are added to the system. It also mentions that the current avoided fuel cost methodology is becoming unreliable due to the complexity of the air emission market. The request asks NS Power to explain its position and how system composition might differ under different load scenarios.

Request IR-7: Re: Application, p.14 and Confidential Appendix A7, identifying factors that cause actual import volumes to vary from forecast. - (a) Please provide a list of the factors, including but not limited to those identified in Conf...

AI summary Request IR-7 asks NS Power to identify factors causing variations in import volumes from forecasts, explain their impact on 2026 imports, and provide sensitivity analysis and forecast comparisons. The request also seeks details on when forecasts were developed and how factors like energy product availability and outages were considered.

FCA component of 1P-RTP Tariffs for distribution to stakeholders in Q2 2025, for review at the first stakeholder session.”[[1]](#footnote-2) Please explain whether this occurred and, if not, why not. In the 2025 AAR proceeding, NS Power st...

AI summary The document discusses NS Power's explanation regarding the FCA component of 1P-RTP Tariffs not being distributed to stakeholders in Q2 2025 and the impact of recent emissions standards on the 1P-RTP tariff methodology, citing concerns over volatility and reliability of the current avoided fuel cost methodology.

1. Please explain whether it is still NS Power’s position that the SO2 emissions limit will not be an issue for the design of the 1P-RTP Tariff after renewable energy sources are added to the system. Please address this question specifical...

AI summary The document requests clarification on NS Power’s position regarding SO2 emissions limits and the 1P-RTP Tariff design, as well as how system composition might change if the load served under the 1P-RTP Tariff was not present, particularly concerning the marginal system capacity for 2026 and the potential retirement of Lingan 2.

ing the “adjustment for the projected imbalance” is the SO2 emissions limit issue. 2. Please explain any other reasons that NS Power has for eliminating the “adjustment for the projected imbalance.” In its 2018 AAR application, NS Power st...

AI summary The text discusses NS Power's reasons for eliminating the 'adjustment for the projected imbalance' and the treatment of unit commitment costs under different AAR tariff designs. It also references the Board's requirement for sensitivity analyses regarding potential delays in wind resource in-service dates in the 2026 AAR application.

nsitivity analyses.[[10]](#footnote-11) In its application, NS Power states that it “does not believe the ‘no new wind’ scenario to be indicative of a plausible outcome for 2026.”[[11]](#footnote-12) 1. Please explain why NS Power submitte...

AI summary The document includes questions directed at NS Power regarding its submission of a sensitivity analysis it considers not plausible, the Q3 2025 wind site forecast, and alternate scenarios for wind project delays. It also requests clarification on the implications of Sensitivity 4 results for rate setting.

strating why this tariff should be removed from the AAR framework and instead reviewed in a GRA. The Board will consider NS Power's request when sufficient justification is provided for such a change. The four MEUs confirmed that they will...

AI summary NS Power is requesting the removal of a tariff from the AAR framework and its review in a GRA. The MEUs confirmed they will take service under the BUTU tariff in 2026, with energy sourced from Ellershouse Wind Farm and the Municipal Tariff. The Board is satisfied that current issues between NS Power and the MEUs have been resolved and supports the approval of the tariffs as filed. The average annual marginal cost for 2026 has decreased by 24% compared to 2025.

ENERGY BALANCING SERVICE The Energy Balancing Service is a supplemental generation service provided to Licenced Retail Suppliers (LRS) in respect of the Licenced Retail Supplier's Renewable to Retail (RtR) Customers utilizing the productio...

AI summary The Energy Balancing Service provides supplemental generation to Licensed Retail Suppliers (LRS) for their Renewable to Retail (RtR) Customers, ensuring service reliability equivalent to Bundled Service. It involves delivering complementary energy and receiving surplus generation, and must be used with Standby Service under the Standby Service Tariff.

AVAILABILITY This Energy Balancing Service Tariff is applicable to the LRS in order to facilitate the purchase of renewable low-impact electricity by RtR Customers. This Energy Balancing Service Tariff is provided under the following terms...

AI summary The Energy Balancing Service Tariff applies to the LRS to enable the purchase of renewable low-impact electricity by RtR Customers, subject to a valid LRS Participation Agreement with NS Power and the provision of service to RtR Customers.

RENEWABLE TO RETAIL MARKET TRANSITION TARIFF Renewable to Retail

AI summary The document introduces the 'Renewable to Retail' initiative, focusing on transitioning renewable energy resources into the retail market. This section outlines the context and objectives of the initiative, highlighting its significance in the energy sector.

ENERGY BALANCING SERVICE The Energy Balancing Service is a supplemental generation service provided to Licenced Retail Suppliers (LRS) in respect of the Licenced Retail Supplier's Renewable to Retail (RtR) Customers utilizing the productio...

AI summary The Energy Balancing Service is a supplemental generation service provided to Licensed Retail Suppliers (LRS) for their Renewable to Retail (RtR) Customers. It ensures service reliability by delivering complementary energy and receiving surplus generation, and must be used with Standby Service under the Standby Service Tariff.

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.

RENEWABLE TO RETAIL MARKET TRANSITION TARIFF Renewable to Retail

AI summary The document introduces the Renewable to Retail Market Transition Tariff, a mechanism aimed at facilitating the transition of renewable energy into the retail market. It outlines the structure and purpose of the tariff in the context of Nova Scotia's energy regulatory framework.

(a) Renewable to Retail Implementation (M12588) With respect to RtR market implementation costs, NS Power is not proposing any changes to the existing cost recovery mechanisms within the RtR tariffs. Instead, the Company proposes to utiliz...

AI summary NS Power plans to recover implementation costs for the Renewable to Retail (RtR) market through existing administrative charge frameworks, including the Energy Balancing Service (EBS) and Standby Service (SS) tariffs. These costs will be amortized over 10 years, contingent on the recovery of financing costs at NS Power's weighted average cost of capital. Administrative costs incurred before the 2027 AAR Application decision will be deferred for future recovery.