Topic:"2027-2031 Demand Side Management Preferred Resource Plan" in M12780

e; and (5) solar-PV generation. Consistent with the Standardized Filing Framework, E1 will be deemed in substantial compliance where a minimum of 90 percent achievement is reached with respect to each E1 also proposes a structured mid-term...

AI summary E1 seeks approval for its 2027–2031 Demand Side Management (DSM) Plan, including a DSM Purchase Agreement with NS Power, performance targets, and an interim order if a full decision is delayed. The application complies with PUA section 79J, ensuring NSEB approval before the plan period begins.

RP scenario. The proposed energy savings of 435.4 GWh represents 64 percent of the IRP target. This approach is not inconsistent with IRP direction. The IRP identifies optimal levels of DSM over a long-term planning horizon (i.e. 25 years)...

AI summary The proposed energy savings of 435.4 GWh (64% of the IRP target) aligns with IRP direction by maintaining long-term savings trajectory while prioritizing short-term affordability (2027–2031). The response directs to prior filings for specific DSMAG feedback, IRP alignment rationale, and future savings gap expectations.

part of the "unique economic landscape" are not, in fact, unique only to the present time, and have been relevant factors in the past, and may remain relevant factors in the future? Response IR-08: (a) EfficiencyOne (E1) characterizes the...

AI summary EfficiencyOne (E1) explains that the 2027-2031 DSM Plan is termed 'short-term' due to its five-year cycle, contrasting with NS Power's longer-term IRP. E1 emphasizes affordability as a critical, evolving consideration in DSM planning, balancing immediate and long-term impacts on ratepayers.

acknowledges that any surplus from the 2023–2026 DSM Plan will inform the Balance Adjustment (BA) in NS Power's Demand Side Management Cost Recovery Rider during the 2027–2031 DSM Plan implementation. (b) The % 2023-2025 Results to 2023-20...

AI summary The text discusses how surplus from the 2023–2026 DSM Plan will influence the Balance Adjustment (BA) in NS Power's Demand Side Management Cost Recovery Rider during the 2027–2031 DSM Plan. It also details expenditure comparisons between actual and approved figures, noting a 18.4% overspend for Large Industrial programs when combining 2023–2025 results with the 2026 DSM Extension. E1 provides this information as informational, with potential changes in future applications.

DATE FILED: May 28, 2026 E1 (IG) IR-12 Page 2 of 3 1 compared to 2026 of the FTEs and enabling strategies spending, present a risk to 2 achieving the proposed performance targets. 3 4 (b) Estimated investment for the proposed 2027–2031 DSM...

AI summary The text discusses concerns regarding the allocation of investment for the proposed 2027–2031 DSM Plan, noting that it was allocated based on program component expenditures rather than cost category breakdowns, which may impact the achievement of performance targets.

- 4 and 'Alternate scenario' (DSM scenario). Request IR-21: Reference: Exhibit E-1, Application, Appendix B, Attachment 2, Tables 7 and 15. Preamble: Table 15 of Appendix B, Attachment 2 provides planned rate-class savings and expenditures...

AI summary The request asks for a disaggregated version of Table 15 by individual program components for the 2027–2031 Preferred Plan and equivalent data for 2023–2026. The response indicates that Appendix A, Attachment 2 of the DSM Resource Plan application provides the required disaggregated data.

E1 Responses to Municipal Electric Utilities (MEU) Information Requests NON-CONFIDENTIAL 1 Request IR-01: 2 3 Reference: Appendix A, Table 15: 2027-2031 DSM Preferred Plan Rate Class Savings and 4 Expenditures, page 40-42 of 112. 5 6 Quest...

AI summary The request (IR-01) asks for a detailed breakdown of savings and expenditures for the Municipal Rate Class (24) across five municipal utilities, with the response directing to Attachment 1 for the data.

se are filed with the NSEB at the end of March the following year, E1 is agreeable to ensuring that the demand response evaluation results are available before the next demand response season begins. Request IR-10: (a) Please explain if, a...

AI summary EfficiencyOne (E1) explains that the 2026 DSM Potential Study will use updated market insights and modeling from the 2027–2031 DSM Plan process, differing from the 2019 methodology due to the IRP's condensed timeline. The study will focus on long-term EE/DR projections from 2027–2051, with baselines derived from recent data rather than 2019 surveys.

to establish baselines. E1's DSM Potential Study consultant, will develop long-term projections of energy efficiency (EE) and demand response (DR) from 2027–2051. The approach follows a clear process: • Integrating load forecasts to update...

AI summary E1's DSM Potential Study will project energy efficiency and demand response potential from 2027–2051 using calibrated modeling aligned with the 2027–2031 DSM Plan. A mid-term check-in is proposed to enhance transparency without altering E1's approved performance targets or spending authority.

decision to engage a third-party consultant could uncover more savings opportunities or direct customers to take alternate approaches, which could also affect project savings and eligible incentives. Request IR-03: Refer to M12780, Exhibit...

AI summary The request (IR-03) asks EfficiencyOne (E1) to provide details on customer satisfaction surveys for small businesses and how they influenced the 2027–2031 DSM Preferred Plan. E1 responds that they conduct ongoing CSAT research with BNI participants, but the answer is incomplete.

sidered adjusting the investment in Enabling Strategies such that it is more aligned with the latter half of the DSM Plan and closer in time to when the new plan is being developed? Response IR-05: (a) As part of the development of the 202...

AI summary EfficiencyOne (E1) explored strategic electrification (SE) scenarios for the 2027–2031 DSM Plan, focusing on residential and BNI programs, including heat pumps and hybrid heating, but excluded EVs and did not consult other jurisdictions. E1 referenced BCA matter M12282 for hybrid heating considerations.

uildings. In 2025 this was 90 percent. E1 has many projects currently enrolled with expected completion dates in 2027 and 2028. Of these projects, 66 percent of these are supported by energy managers. Request IR-09: Energy Managers and Nav...

AI summary EfficiencyOne (E1) has projects with 2027-2028 completion dates, 66% supported by energy managers. Request IR-09 asks E1 to confirm if a coordinated delivery platform (including energy managers and navigators) was considered for integrated DSM delivery, evaluating cost reductions, uptake improvements, and external funding access, while identifying regulatory and operational barriers during the 2027-2031 Plan period.

2027-2031 Demand Side Management Resource Plan Round 1 Model Input Assumptions and Results

AI summary The document outlines the 2027-2031 Demand Side Management Resource Plan, focusing on model input assumptions and results. It reflects Nova Scotia's regulatory process for managing energy demand through efficiency initiatives and resource planning.

1. BACKGROUND Beginning in late 2023, EfficiencyOne (E1) initiated the development process for the 2026-2030 DSM Plan with the Demand Side Management Advisory Group (DSMAG). Following two rounds of modelling, E1 pivoted to focus on the dev...

AI summary EfficiencyOne (E1) developed the 2026-2030 DSM Plan and later pivoted to the 2027-2031 DSM Plan following legislative changes to the Public Utilities Act in 2025. Feedback from the DSMAG on the 2026-2030 plan influenced the 2027-2031 modelling process, with key themes addressed in the report.

Investment Level Some DSMAG members commented that the overall DSM investment modelled in Round 2 2026-2030 was too high. Based on this feedback, E1 reviewed and updated the DSM investment levels modelled for Round 1 of the 2027-2031 DSM P...

AI summary DSMAG members criticized the high DSM investment levels in Round 2 (2026-2030), prompting E1 to adjust Round 1 investment levels for the 2027-2031 DSM Plan. The revised model shows reduced investment compared to Round 2, as illustrated in Figure 1.

Demand Response Some DSMAG members commented that the Demand Response investment modelled in Round 2 2026- 2030 was too high. The Demand Response inputs and assumptions were updated for 2027-2031 DSM Plan modelling to reflect 2024-2025 Dem...

AI summary DSMAG members criticized the high Demand Response investment in Round 2 (2026-2030). E1 updated 2027-2031 DSM Plan modelling with 2024-2025 results, identifying cost-reduction opportunities. Investment levels in both base and high DR scenarios decreased compared to Round 2, as shown in Figure 2.

Investment Level As noted above, some DSMAG members raised concerns about the overall DSM investment level modelled in Round 2 2026-2030, including the investment in new resources. Inputs and assumptions for Strategic Electrification and S...

AI summary DSMAG members expressed concerns about the investment levels in Round 2's 2026-2030 DSM plan, leading to adjusted assumptions in Round 1 for 2027-2031. Strategic Electrification and Solar-PV investments were reduced compared to previous models, as illustrated in Figure 3.

Measure Characterization During 2027-2031 DSM Plan development, measure characterizations were updated to reflect the most current available information, primarily drawing on the 2023 and 2024 DSM evaluation results, internal program data,...

AI summary The 2027-2031 DSM Plan development updated measure characterizations using 2023-2024 evaluations, internal data, and expert insights. Ongoing reviews with Guidehouse support the process, and technical tables will be shared with DSMAG post-Round 2 modelling. Key assumptions are detailed in section 2.4.

June 23, 2026 Ms. Crystal Henwood Clerk of the Board Nova Scotia Energy Board 1601 Lower Water Street, 3rd Floor Halifax, Nova Scotia B3J 3S3 Dear Ms. Henwood: Re: EfficiencyOne – 2027-2031 Demand Side Management (DSM) Plan Application – (...

AI summary Eastward Energy submits evidence regarding EfficiencyOne's application for approval of the 2027-2031 Demand-Side Management (DSM) Resource Plan to the Nova Scotia Energy Board under matter number M12780.

1 Q. WHAT SCENARIOS DOES E1 PRESENT IN ITS APPLICATION? 2 A. E1 presents two scenarios: its Preferred Plan and an Alternate Scenario. The Preferred 3 Plan invests $318.75 million over 2027–2031 and acquires 435.4 GWh of energyefficiency sa...

AI summary E1 presents two scenarios in its application: the Preferred Plan, which invests $318.75 million over 2027–2031 and acquires 435.4 GWh of energy-efficiency savings, and the Alternate Scenario, which invests slightly less ($308.4 million) but achieves the same energy-efficiency savings by eliminating the Eco Shift demand-response component.

1 Q. HOW DID E1 ARRIVE AT THE 11% LEVEL? 2 A. E1 set the level by reference to its own historical performance. In response to the 3 Consumer Advocate, E1 confirmed that it "relied on the 10.5% figure from the 2023– 4 2026 DSM Plan as the p...

AI summary E1 arrived at the 11% level by referencing its historical performance and the 10.5% figure from the 2023–2026 DSM Plan. The increase reflects a commitment to expanding support for low-income and equity customers, moving away from a previous approach based on Census data.

1. Affordability of the Plan - Maintain discipline around total DSM spending, but do not treat a flat annual budget as sufficient evidence that the Plan is affordable or prudent. - Reallocate funding away from increasingly expensive EE mea...

AI summary The document emphasizes maintaining control over DSM spending and reallocated funding to address system needs like winter peak demand and resource adequacy. It calls for stronger benchmarking of E1's EE unit costs and a transition of DSM from rebate programs to a resource planning tool by 2027–2031.

IN THE MATTER OF THE PUBLIC UTILITIES ACT, RSNS 1989, c 380, as amended - and - IN THE MATTER OF An Application by EfficiencyOne for Approval of the 2027– 2031 Demand-Side Management (DSM) Purchase Agreement between EfficiencyOne and Nova...

AI summary This document outlines an application by EfficiencyOne for approval of a 2027–2031 Demand-Side Management (DSM) Purchase Agreement with Nova Scotia Power Inc., along with the establishment of a final agreement and approval of a DSM Resource Plan. The evidence is presented by Alice Napoleon on behalf of the Nova Scotia Energy Board.

Sources: - 2023 Actuals: 2023 DSM Annual Progress Report, Table 1: 2023 Results to 2023 Plan as Approved, 2023 Mid-Course Adjustments, and 2023 Year-End Forecast, pg. 6. - 2024 Actuals: 2024 DSM Annual Progress Report, Table 1: 2024 Result...

AI summary The text references annual progress reports and planned DSM activities from 2023 to 2026, including actuals, mid-course adjustments, and forecasts. It also mentions a proposed DSM plan for 2027-2031. These documents provide data on program savings and investments related to demand-side management.

Q. Please summarize the lifetime energy savings and solar-PV generation proposed by E1 in its 2027-2031 DSM Plan. A. As shown in [Figure 2](#page-10-0) below, E1 estimates that its Preferred Plan would provide steep declines in lifetime en...

AI summary E1's 2027-2031 DSM Plan proposes a significant decline in lifetime energy savings, with savings projected to fall to 52% of 2027 levels by 2031. Solar-PV generation is expected to contribute minimally to these savings.

Figure 2. Proposed 2027-2031 DSM Plan Lifetime Energy Savings and Generation, by Year and Resource Sources: - 2023 Actuals: 2023 DSM Annual Progress Report, Table 1: 2023 Results to 2023 Plan as Approved, 2023 Mid-Course Adjustments, and 2...

AI summary Figure 2 presents the proposed 2027-2031 DSM Plan lifetime energy savings and generation, by year and resource. It references past DSM Annual Progress Reports and the 2026 DSM Extension for Demand-Side Management Activities, as well as the E1 2027-2031 DSM Plan.

Q. Please summarize the peak demand savings and available capacity proposed by E1 in its 2027-2031 DSM Plan. A. E1's expectations for peak demand savings from energy efficiency and available capacity from the demand response in its Preferr...

AI summary E1's 2027-2031 DSM Plan projects total peak demand savings of 43.6 MW by 2031, with energy efficiency contributions declining and demand response contributions growing, sourced entirely from existing and new BNI participants, with no new residential demand response participants planned.

Figure 3. Proposed 2027-2031 DSM Plan Peak Demand Savings and Available DR Capacity, by Year and Resource and Sector

AI summary Figure 3 presents a visual representation of the proposed 2027-2031 DSM Plan, detailing peak demand savings and available demand response (DR) capacity by year, resource, and sector.

Sources: - 2023 Actuals: 2023 DSM Annual Progress Report, Table 1: 2023 Results to 2023 Plan as Approved, 2023 Mid-Course Adjustments, and 2023 Year-End Forecast, pg. 6. - 2024 Actuals: 2024 DSM Annual Progress Report, Table 1: 2024 Result...

AI summary The text references annual progress reports and planned DSM activities from 2023 to 2026, including actuals, mid-course adjustments, and forecasts. It also mentions a proposed DSM plan for 2027-2031. These documents provide data on program savings and investments related to demand-side management.

Q. Please summarize the budgets proposed by E1 in the 2027-2031 DSM Plan. A. E1 proposes an annual budget of $63.75 million for 2027 to 2031, which is the same as the budget approved by NSEB in the 2026 Extension. Over the course of the fi...

AI summary E1 proposes a $63.75 million annual budget for the 2027-2031 DSM Plan, aligning with the 2026 Extension budget. Approximately 90% will be allocated to energy efficiency and enabling strategies, 9% to demand response, and 1% to solar PV.

Figure 4. Proposed 2027-2031 DSM Plan Budget, by Year and Resource

AI summary The document presents Figure 4, which outlines the proposed 2027-2031 DSM Plan Budget, categorized by year and resource. This visual representation is likely used to illustrate the financial allocation for demand-side management initiatives over the next five years.

Q. How did E1 assess cost-effectiveness in the 2027-2031 DSM Plan? A. E1 assessed cost-effectiveness at the portfolio level using the PAC test as the primary cost-effectiveness test, with NS Power's weighted average cost of capital of 6.65...

AI summary E1 assessed cost-effectiveness in the 2027-2031 DSM Plan using the PAC test at the portfolio level and the modified PAC test at the resource level for strategic electrification, with a discount rate of 6.65 percent.

Q. Is the BCR for the portfolio close to 1? A. No. Per the 2027-2031 Plan, E1 projects the proposed portfolio to have a Program Administrator Cost (PAC) test result of 2.4. This suggests that there is ample room for including some electrif...

AI summary The BCR (Benefit-Cost Ratio) for the portfolio is not close to 1. According to the 2027-2031 Plan, E1 projects a Program Administrator Cost (PAC) test result of 2.4, indicating the portfolio has significant room for including electrification resources.

EfficiencyOne 2027–2031 Demand Side Management Plan Matter M12780

AI summary The document introduces the EfficiencyOne 2027–2031 Demand Side Management Plan, identified as Matter M12780, which outlines strategies for managing energy demand over the next four years.

5.5 Recommended Direction for Strategic Electrification Solar Nova Scotia recommends that the Board require EfficiencyOne to develop a strategic electrification pathway within the 2027–2031 DSM Plan, rather than deferring strategic electri...

AI summary Solar Nova Scotia recommends that the Board require EfficiencyOne to develop a strategic electrification pathway within the 2027–2031 DSM Plan, including hourly modelling, EV incentives, hybrid heat pump programs, and integration with demand response. The recommendation emphasizes affordability and decarbonization while avoiding uneconomic measures.

6. Conclusion The 2027–2031 DSM Plan should be approved only with a clearer path to program redesign. The evidence shows that business-sector savings are increasingly dependent on complex, customer-specific projects and that Energy Manager...

AI summary The 2027–2031 DSM Plan needs redesign to address gaps in support for small businesses and underutilized demand response resources. Solar Nova Scotia recommends expanding SBES, improving Energy Manager support, treating controllable load as demand response, and developing a strategic electrification pathway to align with future energy needs.

References - EfficiencyOne. 2027–2031 Demand Side Management Resource Plan Application, Matter M12780, including Appendix A and technical tables. - EfficiencyOne. Responses to Solar Nova Scotia Information Requests E1 (SNS) IR-01, IR-07, I...

AI summary The document references various filings and reports related to EfficiencyOne's 2027–2031 Demand Side Management Resource Plan, Nova Scotia Power's load forecast, and analyses on electrification and clean technology incentives. It also includes legal and policy references such as the More Access to Energy Act and the Clean Power Plan.

E1 Rebuttal Evidence E1 disagrees with Solar Nova Scotia's assertion that adding dedicated Energy Managers to support small businesses will reduce the need for DSM incentives for these customers. Solar Nova Scotia has not presented any dat...

AI summary E1 disagrees with Solar Nova Scotia's claim that adding Energy Managers for small businesses will reduce the need for DSM incentives. E1 argues that there is no data showing small businesses prefer staff assistance over financial support and emphasizes existing support systems. E1 believes DSM funding should focus on direct cost reduction for small businesses.

Memorandum To: Gina Thompson, Kate McDonald (EfficiencyOne) Cc: Chris Conrad, Jessie Wallace (EfficiencyOne), Peter Steele-Mosey, Yamini Arab (Guidehouse) From: Raniel Chan (Guidehouse) Date: 2026-01-15 Re: ProCESS Model Output Review Prot...

AI summary This memorandum outlines Guidehouse's quality control protocols for reviewing EfficiencyOne's 2027–2031 DSM Plan filing. The goal is to increase transparency and ensure consistent quality in ongoing support of E1's demand-side management program planning.

Undertaking U-8: To provide energy efficiency measure PAC scores to include program administration costs assigned to the individual measure level in Appendix A Attachment 3 and if any of the measures do not meet the PAC test, to provide ju...

AI summary EfficiencyOne (E1) has provided Program Administrator Cost (PAC) scores for energy efficiency measures in the 2027–2031 DSM Plan, with program administration costs assigned at the measure level. Eleven measures in the Preferred Plan do not pass the PAC test, and E1 has provided justification for their inclusion.

- 3 EE, ES, DR, PV, and Total (EE + ES + DR + PV): E1 2027-2031 DSM Plan, Appendix A: Preferred Plan, Tables 9-13. - 4 SE (Round 2): E1's response to Synapse IR-02, Attachment 2, Table 10: 1SE-Base Round 2 Modelling Results, pg. 15 5 of 26...

AI summary The text references various appendices and tables from the E1 2027-2031 DSM Plan, including Preferred Plan tables and modelling results from Synapse IR-02. It also mentions the summation of multiple energy efficiency and demand response categories.

June 24, 2026 [[email protected]](mailto:[email protected]) James R. Gogan McInnes Cooper 1969 Upper Water Street, Ste 1300 Halifax, NS B3J 3R7 Dear Mr. Gogan: M12780 - EOne 2027-2031 DSM Plan Application - Confiden...

AI summary This document is a confidentiality request related to the EOne 2027-2031 DSM Plan Application, referencing Matter M12780 and Attachment 2 of NSEB IR 17, which involves a Mercer Compensation Review.

NOVA SCOTIA ENERGY BOARD IN THE MATTER OF: The Public Utilities Act , R.S.N.S. 1989, c.380 as amended -and- IN THE MATTER OF: IN THE MATTER OF An Application by EfficiencyOne for Approval of the 2027–2031 Demand-Side Management (DSM) Purch...

AI summary This document outlines an application by EfficiencyOne for approval of a 2027–2031 Demand-Side Management (DSM) Purchase Agreement with Nova Scotia Power Inc., as well as the establishment of a final agreement and approval of a DSM Resource Plan for the same period.

June 30, 2026 Ms. Crystal Henwood Board Clerk Nova Scotia Energy Board 1601 Lower Water Street, 3rd Floor Halifax, Nova Scotia B3J 3S3 Dear Ms. Henwood: RE: EfficiencyOne – 2027-2031 Demand Side Management (DSM) Plan Application – (M12780)...

AI summary Eastward Energy requests permission for Chris Pulfer of Posterity Group to appear virtually at the EfficiencyOne 2027-2031 Demand Side Management Plan Application hearing. The request is made to the Nova Scotia Energy Board.

June 30, 2026 Crystal Henwood Clerk of the Board Nova Scotia Energy Board 1601 Lower Water Street, 3rd Floor Halifax, NS B3J 3S3 Re: M12780 EfficiencyOne 2027-2031 Demand Side Management Plan – Hearing Witness Panel Dear Ms. Henwood: Nova...

AI summary Nova Scotia Power Inc. requests that Sanem Sergici and Sai Shetty of The Brattle Group be allowed to participate virtually as part of the hearing on EfficiencyOne's 2027-2031 Demand Side Management Plan Application. Curriculum vitae for both individuals are provided as attachments.

Request IR-7: Refer to M12780, Exhibit E-24, SNS Evidence, Section 5.5 Recommended Direction for Strategic Electrification, page 14 of 16, where SNS recommends: "that the Board require Efficiency One to develop a strategic electrification...

AI summary SNS is requesting information regarding Efficiency One's access to hourly modeling capabilities and the timeline for obtaining them, as well as whether strategic electrification recommendations should be included in the 2027-2031 DSM Plan or deferred to future plans. SNS also asks if results from the recommendations could trigger a mid-plan adjustment.

ailto:[email protected])>; 'Theo Love' <[[email protected]>](mailto:[email protected]); 'Twila Gaudet' <[[email protected]](mailto:[email protected])> Subject: RE: M12780 - EfficiencyOne -...

AI summary A request is made to EfficiencyOne to provide comments on scheduling constraints during the hearing for its 2027-2031 Demand Side Management (DSM) Plan Application. The email also includes a note about submitting documents via a secure file transfer service starting from 3 November 2025.

CRYSTAL HENWOOD Pronouns: She/Her Clerk of the Board Nova Scotia Energy Board T 902 424 1332 TF 1 833 809 0040 Statement of Confidentiality [ & lt;[email protected]](mailto:[email protected])>; 'Lucia Westin-Easta...

AI summary This email relates to the logistics of a hearing for EfficiencyOne's 2027-2031 Demand Side Management (DSM) Plan Application, with multiple legal and consulting professionals involved in the process.

'Patrick Bowman' [ ; 'Patrick Butler' <[[email protected]](mailto:[email protected])>; Pronko, Steve [ ; 'Rebekah Powell' [ ; 'Sai Shetty' [ ; 'Sanem Sergici' <[[email protected]](mailto:[email protected])>; S...

AI summary EfficiencyOne is being asked to provide comments on scheduling constraints during the hearing for its 2027-2031 Demand Side Management (DSM) Plan Application. The request is made by Crystal, who is communicating with NS Power and the Consumer Advocate.

Statement of Confidentiality This message (including any attachments) may contain private or protected information meant for a specific person or organization. If you received this by mistake, please let the sender know, do not communicate...

AI summary This email is a confidentiality notice sent by Michael Murphy to Kimberly Painting-MacLean and several other recipients regarding the M12780 - EfficiencyOne - 2027-2031 Demand Side Management (DSM) Plan Application - Hearing Logistics. It emphasizes the need to handle the information securely and not disclose it if received by mistake.

Our File: 238984 August 21, 2026 Nova Scotia Energy Board Via Secure File Transfer 1601 Lower Water St., 3rd Floor Halifax, NS B3J 3P6 Attention: Crystal Henwood, Clerk of the Board Dear Ms. Henwood: Re: M12780 EfficiencyOne Application fo...

AI summary This document is a letter from James R. Gogan of McInnes Cooper to the Nova Scotia Energy Board, regarding the submission of an application by EfficiencyOne for the approval of a Demand Side Management (DSM) Resource Plan and Purchase Agreement for the period 2027-2031.

Please refer to: David Roberts Email: [[email protected]](mailto:[email protected]) Assistant: Alissa Whalen Assistant's email: [[email protected]](mailto:[email protected]) August 28, 2026 VIA WEB PORTAL Crystal Henw...

AI summary This document is a letter regarding the submission of the EfficiencyOne 2027-2031 Demand Side Management (DSM) Plan Application to the Nova Scotia Energy Board. It is addressed to Crystal Henwood, Clerk of the Board, and includes contact information for the assisting lawyers.

Enclosed please find the Undertaking responses on behalf of Green Energy Economics Group, consultant for the Consumer Advocate. Undertaking No. Requested by Stakeholder: Attachments U-12 NSEB Attachment 1 - 2027-2031 DSM Plan M12780 – PDF...

AI summary The document provides undertaking responses from Green Energy Economics Group on behalf of the Consumer Advocate, including attachments related to the 2027-2031 DSM Plan M12780 requested by NSEB.

1 See P 3 of App A of E1 Plan (p 91) The four approved performance targets over the 2023–2026 Plan period. AND P 99 (187) of App A: Table 62: 2027–2031 DSM Preferred Plan Performance Indicators 2 See P 7 (95) of App A of E1 Plan; P 25 (113...

AI summary The document raises concerns about a significant cut in spending levels for the DSM Plan, leading to a loss of investment and savings compared to the 2022 IRP. It recommends increasing DSM funding to meet affordability goals, citing input from the Consumer Advocate, Board Counsel, and other stakeholders.

APPENDIX A – Calculations showing a 45% cut in annual savings from 2023-2026 plan to the 2027-31 preferred plan, for dedicated Low Income and Equity (LI & E) programs - 1. SAVINGS in the 2023-2026 Plan: - a. Source: Table 4 2023-2026 DSM P...

AI summary This appendix compares the energy savings from Low Income and Equity (LI & E) programs between the 2023-2026 DSM Plan and the 2027-2031 Preferred Plan. The average annual savings decrease by 45%, from 5.15 GWh to 2.8 GWh per year, due to changes in program targets and implementation strategies.

will also highlight the collaborative relationship that can be built with Mi'kmaw leadership, enabling opportunities to be delivered in ways that reflect community priorities and local circumstances. While noting all the above, we cannot h...

AI summary The Assembly of Nova Scotia Mi'kmaw Chiefs emphasizes the importance of Mi'kmaw-specific programming in the Demand-Side Management Plan, calling for transparency and proportionate representation. They request approval of the 2027 to 2031 Plan and accompanying Purchase Agreement, highlighting its potential to benefit communities and promote sustainability.

Study completed in 2019 that informed prior M12780, Exhibit E-9, E1 (IG) RIR 1-29, May 28, 2026, IR-7. M12780, Hearing Transcript, E1 2027-2031 DSM Plan Application, August 4-6, 2026, page 302-303.

AI summary The text references a comprehensive DSM potential study completed in 2019, which informed prior proceedings. It also cites specific exhibits and hearing transcripts related to the 2027-2031 DSM Plan Application.

3.0 ALLOCATION OF INVESTMENT TO APPROPRIATE DSM RESOURCES For many years, DSM has extended beyond a narrow focus on traditional energy efficiency measures. It encompasses a range of demand-side resources including energy efficiency, demand...

AI summary The document discusses the need for a more comprehensive and current allocation of investment in demand-side management (DSM) resources for the 2027-2031 DSM Plan. It highlights concerns that the current plan overemphasizes energy efficiency and underinvests in residential demand response and strategic electrification. Brattle's evidence suggests that the plan does not adequately address evolving system needs such as winter peak demand and resource adequacy.

can be considered for implementation within the 2027-2031 period. Consistent with the recommendations laid out in Section 1.1, that work could be brought forward through the Mid-Plan Check-In process. M12780, Hearing Transcript, page 322-3...

AI summary The text references a hearing transcript (M12780) and mentions work that could be implemented during the 2027-2031 period, potentially through the Mid-Plan Check-In process, as per recommendations from Section 1.1.

nts. Two concerns arise: (1) the absence of a strategy for continued residential DR growth, and (2) the timing of DR evaluation and reporting. M12780, Exhibit E-1, Appendix A, pages 76-77 (lines 28-30, 1-3). M12780, Exhibit E-42, E1 Openin...

AI summary The text discusses concerns regarding the lack of a strategy for continued residential demand response (DR) growth and the timing of DR evaluation and reporting. It references various exhibits and hearing transcripts related to the matter.

This closing statement also takes the opportunity to address a recommendation made by the Brattle Group ("Brattle") in the expert report that Nova Scotia Power Incorporated ("NSPI") filed in this matter: specifically, the recommendation th...

AI summary This closing statement challenges a recommendation by the Brattle Group against approving E1's Solar PV Program as part of the 2027-2031 DSM Plan, arguing that the interpretation of the Public Utilities Act would negatively impact future low-income and equity measures in DSM plans.

html) , SNS 2021, c 20, s. 4(c). Those targets are set out in EGCCRA , with the 2030 target being a reduction of 53% below 2005 levels and the 2050 target being net zero: see ibid at ss. 6(a)-(b). propose cost-effective strategic electrifi...

AI summary The document discusses the need for E1 to explore cost-effective strategic electrification measures under the Public Utilities Act. It highlights that E1 may not have fully considered alternatives to the modified PAC test and did not propose any new approaches for the 2027-2031 DSM Plan despite the Board's directive to do so.

ion to indicate exactly who expressed those concerns, or what their reasoning was. E1 also confirmed in questioning at the hearing that there was no consensus at the DSMAG on this issue.[5](#page-5-2) E1 also did not conduct any kind of fo...

AI summary E1 did not conduct a formal affordability analysis but acknowledged significant cost-of-living pressures, rising unemployment, and other economic challenges. E1 prioritized near-term affordability while maintaining long-term value and constrained DSM investment to the 2026 approved level of $63.75 million for the 2027–2031 Plan period.

s. However, the Board leaves it open to E1 to propose another approach when E-1 Undertaking U-1 Exhibit E-21, Evidence of Theodore Love, p. 43 Exhibit E-21, Evidence of Theodore Love, p. 44 filing its 2027-2031 DSM Plan for approval, if it...

AI summary The Board allows E1 to propose an alternative approach when submitting its 2027-2031 DSM Plan, provided it addresses cost-effectiveness requirements. E1's application considered strategic electrification scenarios, but the modified PAC test showed that measures did not reduce electricity costs for customers.

, to have a fulsome discussion around the scope. What we did do is, again, lean heavily on the DSM Plan development and the updated market characterization as a way to carry this work out objectively. We have been, however, working with th...

AI summary The discussion focuses on the development of the DSM Potential Study, emphasizing the need for an objective approach based on the DSM Plan and market characterization. There is concern about the process E1 is following, with the potential study being informed by the new IRP rather than the other way around. A 'rushed' study may lead to underestimating potential, overestimating costs, and ignoring available resources.

James R. Gogan Direct +1 (902) 563 5920 [email protected] 1969 Upper Water Street, Suite 1300 Halifax, Nova Scotia Canada B3J 3R7 Tel +1 (902) 425-6500 Fax +1 (902) 425-6350 Our File: 238984 September 11, 2026 Nova Scotia Energ...

AI summary James R. Gogan from McInnes Cooper sends EfficiencyOne's Closing Submissions for the M12780 application regarding the 2027-2031 Demand Side Management Resource Plan and Purchase Agreement to the Nova Scotia Energy Board.

EfficiencyOne IN THE MATTER OF The Public Utilities Act , R.S.N.S. 1989, c. 380, as amended -and- IN THE MATTER OF An Application by EfficiencyOne for Approval of the 2027–2031 Demand Side Management (DSM) Purchase Agreement between Effici...

AI summary EfficiencyOne has submitted closing arguments in the matter of approving a 2027–2031 Demand Side Management (DSM) Purchase Agreement with Nova Scotia Power Inc., and establishing a final agreement and DSM Resource Plan.

2.1 INTRODUCTION E1 submits that the proposed 2027–2031 DSM Plan satisfies all statutory requirements under the Public

AI summary E1 submits that the proposed 2027–2031 DSM Plan meets all statutory requirements under the Public Utilities Act.

3.1 SCHEDULE A - 3.1.1 INTRODUCTION - The proposed 2027–2031 DSM Plan was designed and submitted by E1, but E1's design of the plan was - greatly informed by stakeholder feedback, particularly through discussions with Demand-Side - Managem...

AI summary E1 submitted a refined 2027–2031 DSM Plan informed by stakeholder feedback, particularly from the Demand-Side Management Advisory Group. The plan includes an enhanced annual adjustment process that allows for limited flexibility in adjusting program budgets and savings based on market conditions and performance changes, while maintaining overall investment and performance targets.

3.3 CONCLUSION - E1 has listened to stakeholder input in the preparation of the 2027–2031 DSM Plan application, and has - continued to do so throughout the regulatory proceeding. Schedule A and the agreements with - stakeholders outlined a...

AI summary E1 has engaged with stakeholders during the preparation of the 2027–2031 DSM Plan and throughout the regulatory proceeding. The agreements with stakeholders, such as Eastward Energy and the Industrial Group, reflect this engagement. E1 believes the DSM Plan is reasonable, responsive to customer needs, and in the best interests of NS Power customers.

JUDGMENT, NOT NEGLECT Ms. Napoleon observes that holding nominal investment flat means spending declines in real terms over the 2027–2031 DSM Plan period[.68](#page-22-2) That is the intended effect of the affordability design, responding...

AI summary Ms. Napoleon argues that maintaining nominal investment flat leads to real spending declines during the 2027–2031 DSM Plan period. This is part of an affordability design aimed at addressing cost-of-living pressures and DSMAG feedback, with E1 emphasizing that this is a present-circumstances judgment not considered permanent.

6.5 CONCLUSION - E1 respectfully submits that the proposed performance targets are appropriate for the Preferred Plan and - that the reporting and accountability mechanisms, as amended by Schedule A, provide a reasonable and - robust frame...

AI summary E1 submits that the proposed performance targets for the 2027–2031 DSM Plan are appropriate and that the reporting and accountability mechanisms, as outlined in Schedule A, provide a reasonable and robust governance framework for the plan.

9.1 INTRODUCTION - Approximately 29.3 MW of available capacity is provided by way of DR under the Preferred Plan. Available - DR capacity represents the amount of load reduction that can be achieved during peak periods by - temporarily red...

AI summary The document discusses the 2027–2031 DSM Plan, highlighting that E1 has maintained residential DR capacity at 2026 levels due to cost-effectiveness concerns and slower program ramp-up. BNI DR is expected to see modest growth, and the Mid-term Check-in process may allow for future residential DR additions if cost-effectiveness improves.

an for fossil-fueled generators. 135 E-32, NS Power (CA) RIR 1 to 10: CA IR 8 and CA IR 4(a); E-31, NS Power (E1) RIR 1 to 9: E1 IR-5(b). E-23, Synapse Evidence, p 36–45. - Napoleon's comments on program delivery costs are addressed specif...

AI summary The document discusses the BNI DR program under E1's Preferred Plan for the 2027–2031 DSM Plan, highlighting its growth from the previous DSM Plan and projected capacity increases. It notes the program's cost-effectiveness and expansion in participation from 2023 to 2025.

9.3.2.2 OPTIMIZATION Despite the current PAC results for residential DR, E1 anticipates it can bring the residential DR program component to cost-effectiveness. It will be working during the course of the 2027–2031 DSM Plan to do so. E1's...

AI summary E1 anticipates that through technology optimization, data analysis, and participant targeting, the residential DR program can achieve cost-effectiveness during the 2027–2031 DSM Plan without needing to scale up further, though the timeline is uncertain.

10.1 OVERVIEW - The Preferred Plan proposes a modest level of solar-PV in the proposed 2027–2031 DSM Plan (0.9 percent - of total DSM investment).[156](#page-42-3) If approved, this would be the first time that solar-PV as a stand-alone -...

AI summary The Preferred Plan includes a modest solar-PV component in the 2027–2031 DSM Plan, targeting Mi'kmaw communities. This initiative aligns with legislative goals to improve equitable access and sustainable development. The Assembly of Nova Scotia Mi'kmaw Chiefs supports the program, emphasizing its benefits for energy security, local employment, and environmental stewardship.

9 11.3 E1'S APPROACH - E1 recognizes that strategic electrification can be beneficial to both Nova Scotians and Nova Scotia's energy - goals. This is reflected in the work E1 did to explore its inclusion as a resource in the 2027–2031 DSM...

AI summary E1 acknowledges the potential benefits of strategic electrification (SE) for Nova Scotia but was unable to include SE in its 2027–2031 DSM Plan due to failure in the modified PAC test. E1 remains committed to exploring SE through its Innovation Framework and has included SE as a standing topic for regulatory processes.

12.3.2 DEVELOPMENT AND RESEARCH Development and Research allow E1 to respond to changes in technologies, markets, customer attitudes, system needs and delivery practices through market research, data and analytics, program harmonization, i...

AI summary Development and Research at E1 supports adapting to technological and market changes through research, innovation, and program harmonization. In response to stakeholder feedback and the Board's direction, E1 filed a 2027–2031 Innovation Framework with five focus areas, including demand response and strategic electrification.

13.1 INTRODUCTION E1 recognizes that unit costs of energy savings are increasing and submits that these increases are attributable to identifiable structural and market factors.[196](#page-63-3) In light of these factors, E1 has taken acti...

AI summary E1 acknowledges rising unit costs of energy savings and attributes the increase to structural and market factors. E1 has taken steps to manage costs, including reducing administrative expenses and increasing the share of incentives. E1 engaged Apex Analytics to evaluate incentive practices and concluded that its costs and incentives are reasonable and consistent with industry norms.

14.1 INTRODUCTION The Preferred Plan is achievable, for two main reasons. First, E1 has a demonstrated record of delivering Board-approved DSM Plans and producing verified energy and demand savings, while managing expenditures within appro...

AI summary The Preferred Plan is achievable due to E1's history of delivering Board-approved DSM Plans and managing expenditures within approved funding, as well as its design based on successfully implemented services, programs, and market relationships with measured enhancements.

1. O VERALL P ORTFOLIO I NVESTMENT A MOUNT The IG submits that maintaining annual DSM investment at $63.75 million for each year of the 2027-2031 DSM Plan period, for a total of $318.75 million, is a reasonable, evidence-based approach to...

AI summary The IG argues that maintaining $63.75 million annual DSM investment over the 2027-2031 period is reasonable and evidence-based, balancing long-term benefits with immediate rate impacts. The Board must weigh affordability and short-term rate impacts against long-term system benefits when evaluating the DSM Plan.

legislative or regulatory changes affecting DSM delivery, or other extraordinary events materially impacting plan feasibility or ratepayer value. E1 does not anticipate the need for such amendments.5 In light of E1's characterizations of b...

AI summary The document discusses the approval process for the 2027-2031 DSM Plan, with ECEL suggesting that revising the Plan for 2028-2031 may require a new application rather than a mid-course adjustment. It also considers the possibility of an interim order approving the 2027 investment and savings levels while requiring revisions for the later years.

Delivered by Email Crystal Henwood Regulatory Affairs Officer/Clerk Nova Scotia Energy Board 3rd Floor, 1601 Lower Water Street PO Box 1692, Unit M Halifax, NS B3J 3S3 Dear Ms. Henwood: Re: M12780 – E1 – 2027-2031 Demand Side Management (D...

AI summary The Industrial Group (IG) submits reply submissions in response to issues raised by the Consumer Advocate, Affordable Energy Coalition, East Coast Environmental Law, and Ecology Action Centre regarding affordability and increased DSM investment, as well as NSPI's request to be involved in the scoping of the Smart Synergy/Large Industrial Interruptible Rider participation study.

EfficiencyOne IN THE MATTER OF The Public Utilities Act , R.S.N.S. 1989, c. 380, as amended -and- IN THE MATTER OF An Application by EfficiencyOne for Approval of the 2027–2031 Demand Side Management (DSM) Purchase Agreement between Effici...

AI summary This document pertains to an application by EfficiencyOne for approval of a DSM Purchase Agreement and Resource Plan with Nova Scotia Power Inc. under the Public Utilities Act, R.S.N.S. 1989, c. 380, as amended.

Closing submissions on E1's proposed 2027–2031 DSM Plan (the "Preferred Plan" or "Plan") were filed by the Affordable Energy Coalition ("AEC"), the Consumer Advocate ("CA"), East Coast Environmental Law ("ECEL"), Eastward Energy ("Eastward...

AI summary Closing submissions on E1's 2027–2031 DSM Plan were filed by multiple stakeholders, including the Affordable Energy Coalition, Nova Scotia Power, and various advocacy groups. While no party requests outright rejection of the Plan, there is debate over refinements. E1 responds by subject area and refers to its Closing Submissions for further details.

ernative that E1 develop new avoided costs, rework the PAC to include net-metering utility costs, and re-file for approval before launch: NS Power stands alone in seeking removal, every other party to address the E1 Closing Submissions, p....

AI summary The document discusses the Solar-PV program, noting that E1 proposes a program limited to Mi'kmaw communities and does not intend to expand it during the 2027–2031 DSM Plan period. The program is deemed cost-effective with a PAC of 1.1 and minimal impact on non-participants. Other parties support the program and oppose NS Power's request for removal.

4 7. DSM POTENTIAL STUDY AND PORTFOLIO REMODELLING NS Power and the CA raise the timing of the potential study stating that the last comprehensive study was completed in 2019, and the current one is run on a compressed timeline and, in eff...

AI summary NS Power and the Consumer Advocate argue that a new DSM potential study should be conducted before the 2027–2031 DSM Plan is finalized. E1 agrees to complete an updated study but opposes automatically re-opening the Plan mid-term, suggesting instead that a Mid-Term Check-In process with event-based triggers should be used to assess whether changes are needed.

James R. Gogan Direct +1 (902) 563 5920 [email protected] 1969 Upper Water Street, Suite 1300 Halifax, Nova Scotia Canada B3J 3R7 Tel +1 (902) 425-6500 Fax +1 (902) 425-6350 Our File: 238984 September 18, 2026 Nova Scotia Energ...

AI summary This document is a submission from EfficiencyOne regarding their application for approval of a Demand Side Management (DSM) Resource Plan and Purchase Agreement for 2027-2031. It includes a reply submission to the Nova Scotia Energy Board and is addressed to the Clerk of the Board.

INTRODUCTION 1. Solar Nova Scotia ("SNS") seeks the directions in Part V of its closing submission. SNS is a volunteer-led industry association participating without counsel or retained experts. As the first five-year DSM plan in Nova Scot...

AI summary Solar Nova Scotia (SNS) is requesting the Board to consider two key opportunities for demand-side resources: delivery innovation and enabling additional resources such as batteries and demand response. SNS emphasizes the importance of analyzing these opportunities before setting the direction for the next five-year DSM plan.

From: [Henwood, Crystal D](mailto:[email protected]) To: [Alice Napoleon;](mailto:[email protected]) [Alissa Whalen](mailto:[email protected]); [Angela Costello](mailto:[email protected]); [Bill Mahod...

AI summary This email from Crystal Henwood to various stakeholders outlines the due dates for responding to undertakings, submissions, and reply submissions related to the M12780 - EfficiencyOne - 2027-2031 Demand Side Management (DSM) Plan Application. It also reminds recipients of the new file submission requirement effective November 3, 2025.