Topic:"Energy Efficiency Resource Assessment Model" in M12663

ble prosperity when exercising its regulatory authority, we have looked for opportunities to engage in Board matters and encourage purposive and meaningful applications of this sustainability mandate. In recent months, we have received inq...

AI summary The document discusses the procurement process initiated by the NS IESO to develop fast-acting power generation facilities in Pictou County, including environmental assessments and the potential for tolling agreements. It also references the More Access to Energy Act and how tolling agreements would be recoverable from ratepayers.

olling agreement established following the RFP will be an energy resource supply contract, the costs of which are recoverable from ratepayers upon application to the Board under section 30 of the Act. The inquiries that ECEL has received f...

AI summary The document discusses the NS IESO's application for recovery of procurement costs related to an energy resource supply contract following an RFP, as well as the regulatory pathways for approval of these costs. It also references concerns raised by ECEL regarding procurement decisions and regulatory requirements.

t this time. The regulatory pathways for NSEB review and approval of these additional cost categories will be assessed in further detail in 2026. [Exhibit N-1-(1), page 8, lines 17-26: emphasis added] We recognize that the costs of energy...

AI summary The document discusses the regulatory oversight of energy resource procurement decisions by the NS IESO, noting public interest in the Board's role. It highlights Subsections 30(1) and 30(2) of the More Access to Energy Act , which provide for the recovery of energy resource supply contract costs from ratepayers. These provisions are emphasized as the only statutory basis for the Board's oversight of NS IESO procurement activities.

Anticipated Work • A thorough review of the Legislative requirements - A review of relevant work to date including an Archer assessment of the split of North American Electric Reliability Corporation (NERC) compliance requirements between...

AI summary The anticipated work includes a comprehensive review of legislative requirements, NERC CIP standards, market rules, and infrastructure assessments, as well as evaluations of operational agreements and emergency frameworks related to the transfer of responsibilities.

Innovation and Fit for Purpose Describe how your proposed solution is right-sized for the Nova Scotia context, emphasizing scalability, cost efficiency, and practical implementation given the province's scale and available resources. Descr...

AI summary The text requests a description of a proposed solution's fit for the Nova Scotia context, emphasizing scalability, cost efficiency, and practical implementation, and how it will help the IESO deliver its desired outcomes and accelerate implementation.

Out of Scope - Economic, siting, policy, or environmental impacts - Alternative modeling approaches—these results may differ from other analyses - Quantified impacts of planned projects - Endorsement of specific projects, as additional pla...

AI summary The text outlines topics considered out of scope for the regulatory proceeding, including economic and environmental impacts, alternative modeling approaches, quantified project impacts, endorsement of specific projects, and recent changes to load forecasts and renewable targets.

can still challenge the available energy supply. - Some identified transmission additions could be addressed by projects already in the planning, permitting, or construction phases. Likewise, existing system capability to switch resources...

AI summary The analysis identifies potential energy deficiencies across all 12 weather years evaluated, with a maximum resource deficiency of 10 GW in Québec. It also highlights the need for additional transfer capability, estimating 14 GW could improve energy adequacy under extreme conditions. Solutions such as transmission, local resources, demand-side measures, and storage are recommended.

Important Study Considerations While the Canadian Analysis used engineering study approaches deployed within industry planning processes, it is not a planning study. Reliability, in the form of energy adequacy, is the sole focus of the stu...

AI summary The study focuses on reliability and energy adequacy, not economic justification for transmission upgrades. It identifies potential increases in transfer capability during extreme conditions but does not consider local solutions or endorse specific projects. NERC acknowledges additional benefits of transmission beyond reliability.

Selected Weather Years A two-pronged approach for inputs and assumptions was used to study a variety of conditions across 12 different weather years. This approach combined synthetic, modeled datasets from 2007 to 2013[64](#page-90-3) with...

AI summary The analysis used a two-pronged approach combining synthetic data from 2007 to 2013 and historical data from 2019 to 2023 to study various weather conditions across 12 years, enhancing the dataset for analysis.

Figure 4.1: Two-Pronged Approach for Historical Weather Data Note: The hourly energy margin analysis applied historical weather year data to simulate future grid operations under similar conditions but did not simulate historical operation...

AI summary This section discusses a two-pronged approach using historical weather data to evaluate future grid operations under extreme weather conditions. It highlights the use of 12 weather years to simulate load and resource availability, noting that the selected years do not represent all possible extreme weather scenarios.

Step 1: Identify Hours of Resource Deficiency The transfer capability additions process begins with calculating the hourly energy margin for each TPR. Unlike traditional planning reserve margins that evaluate the supply and demand during e...

AI summary The energy margin analysis calculates the hourly energy margin for each TPR over 12 weather years, assessing potential surplus or deficit across all hours of the year. This method considers variable renewables, storage scheduling, outages, and weather-dependent load fluctuations, providing a time-synchronized dataset for comparing TPRs.

The 2024 case was used for benchmarking, but the simulations did not attempt to recreate actual operations. is largely capable of maintaining energy adequacy across diverse scenarios except under the most challenging conditions. The 2024 c...

AI summary The 2024 case serves as a benchmark for evaluating future energy adequacy, particularly in the 2033 scenario. Simulations applied historical weather conditions to the 2024 resource mix, revealing insights into potential impacts of future changes in resource mixes, load growth, and extreme weather events. Tables 6.2 and 6.3 quantify resource deficiencies in terms of energy (GWh) and hours of deficiency.

2033 Energy Margin Analysis Results The 2033 case analysis mirrors the 2024 analysis but accounts for continued load growth, retirements, and new resource additions. The assumptions for load growth, retirements, and resource additions were...

AI summary The 2033 Energy Margin Analysis builds on the 2024 analysis, factoring in continued load growth, retirements, and new resources. Projections from the 2023 LTRA inform the assumptions. Table 6.4 outlines maximum resource deficiencies across TPRs and weather years, with purple highlighting indicating deficiencies in both summer and winter.

Energy Adequacy by Iteration Section - This section provides information on each iteration of the simulation, whether or not transfer capability was added for the respective TPR. In general, the energy adequacy metrics will improve in each...

AI summary This section explains how energy adequacy metrics are evaluated across different iterations of a simulation, focusing on tight margin hours, resource deficiency hours, max resource deficiency, and total deficiency across 12 weather years.

Expand Use of Data Reporting Systems All entities were very responsive to data requests throughout the study process. However, NERC noted several areas of improvement: - The compilation of outage data was more complicated and time-intensiv...

AI summary NERC identified challenges in data reporting during the study, including complicated outage data compilation, lack of publicly available energy data, and inconsistent resource forecast reporting. Recommendations include expanding use of the GADS system, making energy data publicly available, and standardizing resource forecast reporting to improve future studies and decision-making.

Target Forecast (2023 LTRA Annual Energy, Summer and Winter Peak Loads) Historical hourly load provided by the Canadian utilities from 2019 to 2023 served as the foundational dataset used to simulate the 2019–2023 weather years and to esti...

AI summary The document discusses the methodology used to forecast energy and peak load demand for 2024 and 2033 based on historical load data from 2019 to 2023, adjusted to account for net energy and the impact of behind-the-meter photovoltaic (BTM PV) systems.

14 M12633 Transcript, June 25, 2026, pages 120 - 122. 297 Undertaking U-7. 298 299 The not-for-profit nature of IESO Nova Scotia is a significant factor that must be taken into 300 account. If IESO Nova Scotia does not have the funding to...

AI summary The not-for-profit nature of IESO Nova Scotia is highlighted as a critical factor in its ability to fulfill its mandate. The document emphasizes that without adequate funding, the IESO cannot effectively perform its duties in energy system planning, resource procurement, and electricity supply reliability. Mr. Johnston affirms the importance of accurate forecasting.

IESO NOVA SCOTIA PANEL 45 Cr-ex, (Murphy) 1 to progress a facility that has an extremely long lead 10 quite a significant discussion and negotiations with New 11 Brunswick Power to achieve the agreement that was, in 12 fact, reached to the...

AI summary The IESO Nova Scotia panel discusses the need for external advice in negotiations with New Brunswick Power to progress a long-lead facility project, emphasizing the complexity and significance of the agreement reached for the benefit of Nova Scotia customers.

IESO NOVA SCOTIA PANEL 303 Cr-ex, (Rudderham) 1 the completion date currently, a status update on that? 2 (Milligan) Yeah, it's Fall of A. 3 2028. 4 Q. Okay. So it's still the Fall of 5 2028. 6 In terms of the final agreement with 7 NB Pow...

AI summary The discussion focuses on the completion date of a project set for Fall 2028 and whether there is a financial risk-sharing mechanism between Nova Scotia and New Brunswick ratepayers, similar to the Maritime Link Project. The IESO NS indicates that the mechanism may not apply due to tolling agreements in place with a third party.

IESO NOVA SCOTIA PANEL 391 Cr-ex, (Rudderham) 1 Q. Okay. So then does that mean 2 that the IESO NS's understanding of what the 3 administration of the costs means under section 30 does 4 not include the procurement cost or the administrati...

AI summary The discussion revolves around the interpretation of section 30 of the More Access to Energy Act, specifically regarding the recovery of costs related to energy resource supply contracts. The IESO Nova Scotia clarifies that costs such as those from tolling agreements and contract administration fall under section 30, while one-time costs like those for establishing contracts are not included in this mechanism.