E-12027-2031 DSM Plan Application
14 passages
8 2.1 2023–2026 DSM PLAN 9 E1's current approved DSM Plan (2023–2026) provides for the delivery of DSM programs through the end of 2026. [1](#page-90-2) With three of the four Plan years now complete, E1 has made substantial progress towar...
AI summary E1 has made significant progress towards its 2023–2026 DSM Plan performance targets, achieving 82% of energy savings, 84% of demand savings, and 84% of energy savings for affordable housing and Mi'kmaw projects. The 2026 DSM Extension is expected to help achieve 90% compliance for all targets by December 31, 2026.
2.2.4 LOW-INCOME AND EQUITY ENERGY SAVINGS The performance target of energy savings applicable to E1's dedicated low-income and equity program components (i.e., Affordable Multifamily Housing, Affordable Single-family Homes, and the Mi'kma...
AI summary E1's low-income and equity energy savings programs faced challenges in meeting 2023 targets due to capacity constraints and software modeling updates. Adjustments in 2024 and 2025, including increased participation and process improvements, led to progress toward the 2023–2026 performance target, with expectations to meet it by 2026.
Key observations of the Preferred Plan include: - annual investment for the Preferred Plan is maintained at the 2026 DSM Extension approved investment level of $63.75 million, with no annual inflationary increases to the investment, to sup...
AI summary The Preferred Plan maintains a fixed annual investment of $63.75 million with no inflationary increases, aiming to support affordability. Energy savings have declined due to market shifts and program closures. The plan supports Mi'kmaw communities and shows strong cost-effectiveness with a 114% ROI and a 30-year solar-PV measure life. However, some low-income programs have lower PAC scores.
1 4.5.1 LOW-INCOME AND EQUITY INVESTMENT AND SAVINGS - 2 E1's 2027–2031 DSM Preferred Plan includes dedicated program components that exclusively serve low- - 3 income and equity communities. These program components include Affordable Mul...
AI summary E1's 2027–2031 DSM Preferred Plan includes dedicated low-income and equity programs (e.g., Affordable Multifamily Housing, Mi'kmaw projects) accounting for 11% of residential savings. The Solar-PV program is also targeted at these communities. Incidental impacts from non-targeted programs like Efficient Product Installation are also noted, with details in Attachment 1 and Table 14.
sidential program components also continue to see reduced energy savings, resulting from two billing analyses conducted during the 2024 1 3 4 5 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 - 1 DSM evaluation. The Home Energy Assessment billin...
AI summary Residential energy programs in Nova Scotia face reduced savings due to updated billing analyses (Home Energy Assessment and Green Heat), impacting heat pump efficiency. E1 shifts investments to BNI Demand Response and maintains residential demand response levels. Solar-PV supports Mi'kmaw communities through energy efficiency initiatives.
11 Table 19: Existing Residential - Overview, Objectives, Opportunity Existing Residential • program components have been added or removed as determined by market need and evolution. Most recently, Green Heat ended in 2025 due to a continu...
AI summary The Existing Residential program has evolved over time, with components added or removed based on market needs. The Green Heat program ended in 2025 due to declining savings and participation. Some components originated as pilots, such as Efficient Product Installation and the Mi'kmaw Home Energy Efficiency Project. Further details on program history are provided in Tables 20–25.
1 Table 24: 2027–2031 Mi'kmaw Home Energy Efficiency Project Program Component Mi'kmaw Home Energy Efficiency Project Annual Plan Investment Energy Savings Demand Savings Participation ($M) (GWh) (MW) (homes) 2027 Total 0.5 0.1 0.1 60 2028...
AI summary The Mi'kmaw Home Energy Efficiency Project outlines planned investments and energy savings from 2027 to 2031, with a total investment of $0.6M, energy savings of 0.1 GWh, demand savings of 0.1 MW, and participation from 60 homes. The program's activity is primarily focused in 2027, with no further details provided for subsequent years.
Participation is the number of homes in Affordable Single-family Homes, Home Energy Assessment and Mi'kmaw Home Energy Efficiency Project; the number of products in Efficient Product Installation; and the number of projects in Affordable M...
AI summary The text provides participation metrics for various energy efficiency programs, including Affordable Single-family Homes, Home Energy Assessment, and Mi'kmaw Home Energy Efficiency Project, along with product and project counts for Efficient Product Installation and Affordable Multifamily Housing. The date filed is March 31, 2026.
1 Table 27: 2027–2031 Existing Residential Low-Income and Equity Performance Indicators Year Investment ($ million) First-Year Energy Savings (GWh) Lifetime Energy Savings (GWh) Peak Demand Savings (MW) Participation (homes) Participation...
AI summary Table 27 outlines projected residential low-income and equity performance indicators from 2027–2031, detailing investments, energy savings, and participation metrics across programs like Affordable Single-family Homes and Mi'kmaw Home Energy Efficiency Projects. Total participation spans 2,735 homes, 73,904 products, and 595 projects, with energy savings declining slightly over time.
14 Table 28: New Residential - Overview, Objectives, Opportunity New Residential • increase adoption of products that support E1's residential solar-PV program. Opportunity Target market • Mi'kmaw communities • Upfront Costs: higher increm...
AI summary The New Residential program aims to increase adoption of energy-efficient products in Mi'kmaw communities. Barriers include higher upfront costs, lack of information, and competing financial priorities. The program builds on initiatives like 'Performance Plus,' launched in 2010.
16 Table 62: 2027–2031 DSM Preferred Plan Performance Indicators DSM Resource Performance Indicators Annual incremental energy savings (reported by program and rate class) (GWh) Cumulative energy savings (reported by program and rate class...
AI summary Table 62 outlines performance indicators for the 2027–2031 DSM Preferred Plan, including annual and cumulative energy and peak demand savings by program and rate class, with a focus on low-income and equity programs such as Affordable Multifamily Housing and the Mi'kmaw Home Energy Efficiency Project.
2 3 Currency is expressed in nominal dollars. For the five-year total row, currency is a straight sum of 5 years of nominal values. Energy efficiency first-year and lifetime unit cost includes Enabling Strategies investment. Levelized unit...
AI summary The text outlines the methodology for calculating unit costs and benefits for energy efficiency, demand response, and solar-PV programs, including the use of net present value, WACC, and lifetime benefits. It also mentions specific programs targeting low-income and equity energy savings, such as Affordable Multifamily Housing and the Mi'kmaw Home Energy Efficiency Project.
7 Electricity Efficiency and ConservationDemand-Side Management Activities The figure below identifies the scope of savings (3 5 year cCumulative Annual eEnergy sSavings, cCumulative Annual pPeak dDemand sSavings, cCumulative Annual eEnerg...
AI summary The document outlines Energy Efficiency Corporation (EECA) Demand-Side Management (DSM) performance targets over a five-year plan, including energy and peak demand savings, solar-PV generation, and low-income equity programs. Compliance requires achieving 90% of targets; otherwise, a regulatory process is triggered. Schedule B addresses compensation mechanisms.
PERFORMANCE REQUIREMENTS - I. UARBNSEB-APPROVED PERFORMANCE TARGETS, THRESHOLDS, AND INDICATORS - a) Performance Targets and Thresholds: - Performance Targets are set over the three five year contract period, rather than annually. - ii. Ef...
AI summary Performance targets for EfficiencyOne (E1) are set over three five-year contract periods, requiring 90% achievement of metrics like energy savings, peak demand reduction, and solar-PV generation. Non-compliance triggers regulatory action, with the Nova Scotia Energy Board (NSEB) determining remedies. Targets include specific programs for affordable housing and Mi'kmaw communities.
E-22025 DSM Annual Progress Report
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1. EXECUTIVE SUMMARY - EfficiencyOne ("E1") delivers demand side management ("DSM") programs and is the - administrator and operator of the Efficiency Nova Scotia ("ENS") franchise. The 2025 Annual - Progress Report ("APR") summarizes E1's...
AI summary EfficiencyOne (E1) reports on its 2025 progress toward DSM program targets, including energy and demand savings. E1's 2023-2025 DSM Plan was approved by NSUARB in 2022, and its 2026 extension by NSEB in 2025. The approved plan includes $236.8M investment and four performance targets. In 2025, E1 achieved 82% progress toward the 528.7 GWh energy savings target.
2.2 2025 Participation Result[s](#page-11-0) - [Table 2](#page-11-0) presents E1's 2025 participation results. The table provides a comparison of 2025 - participation results to those modelled in the 2025 Plan and the four-year Plan period...
AI summary E1's 2025 participation results show mixed outcomes compared to the 2025 Plan. Higher participation occurred in Instant Savings, Affordable Homes programs, and Business Energy Rebates due to retailer sales, faster project completion, and rebate promotions. Lower participation was observed in Efficient Product Installation (phasing out lighting measures), Green Heat (ended in 2025), and Demand Response (unpursued pathways). The Custom program exceeded energy savings despite lower participation.
3.1 2026 Plan as Approved Assessment in 2023, 2024, and to a lesser extent, in 2025. As detailed in E1's 2026 DSM Extension filing, 2026 Plan targets for energy savings (116.0 GWh) and demand savings (18.9 MW) are consistent with E1's expe...
AI summary The 2026 DSM Plan targets 116.0 GWh in energy savings and 18.9 MW in demand savings, reflecting lower expected savings due to market changes and billing analysis updates. The plan includes adjustments from the closure of the Canada Greener Homes Grant and slower program implementation. The investment aligns with the legislated level of $63.75 million.
- o Residential Behaviour, Custom, Strategic Energy Management, the Application Rebates service of Business Energy Rebates, Residential Demand Response, and BNI Demand Response received comprehensive impact evaluations. - o Appliance Retir...
AI summary The 2025 evaluation activities include comprehensive and condensed impact evaluations for various energy programs, a market evaluation for Business Energy Rebates' Instant Rebates, a process evaluation for Residential Demand Response, and updates to the Measure Assessment document. Evaluations involve surveys, interviews, and jurisdictional scans to assess program effectiveness and market conditions.
Program Components - Appliance Retirement retires old, inefficient household appliances (e.g., refrigerators, freezers, room air conditioners) by offering free appliance pick-up from homes, proper recycling, and a financial incentive. The...
AI summary The Appliance Retirement program retired inefficient appliances until January 2025, offering incentives and recycling. Instant Savings provides rebates for energy-efficient purchases. Both programs aim to improve energy efficiency and reduce consumption.
2 4.2.2 Existing Residential - 3 The Existing Residential program consists of the following program components: - 4 Affordable Multifamily Housing; - 5 Affordable Single-family Homes; - 6 Efficient Product Installation; - 7 Green Heat; - 8...
AI summary The Existing Residential program includes components such as Affordable Multifamily Housing, Efficient Product Installation, and Green Heat. It references the 2025 DSM Programs Evaluation Reports, Final DSM Reports, and the Residential Efficient Product Rebates Program.
Mi'kmaw Home Energy Efficiency Project Highlights - The Mi'kmaw Home Energy Efficiency Project program component achieved its 2025 Plan as Approved demand savings target and participation estimates, while energy savings results were lower...
AI summary The Mi'kmaw Home Energy Efficiency Project met its 2025 demand savings target but fell short of energy savings expectations due to modelling overestimation. The program, now in its eighth cohort since 2018, plans to end in 2027. E1 released a 2024 Impact Report detailing results and is assessing unparticipated homes for future planning.
2 4.5 Low-Income, Diverse, Underserved Communities - 3 In 2025, E1 updated its assumptions and estimation methodology for calculating impacts from - 4 E1's dedicated program components (Affordable Multifamily Housing, Affordable Single-Fam...
AI summary E1 updated its methodology for calculating low-income and equity impacts from its DSM programs in 2025. Dedicated programs like Affordable Multifamily Housing and the Mi'kmaw Home Energy Efficiency Project exclusively serve low-income communities. Non-targeted programs saw changes, including the Appliance Retirement program's end and revised assumptions for Business Energy Rebates. The methodology was filed with E1's 2026 DSM Extension Application.
4.5.1 Performance Target For the 2023-2026 Plan as Approved, the NSEB established a Performance Target of 19.8 GWh for cumulative annual energy savings applicable to Affordable Single-family Homes, Affordable Multifamily Housing, and Mi'km...
AI summary The NSEB set a 19.8 GWh energy savings target for the 2023-2026 Plan. E1 exceeded its 2025 target for Affordable Single-family Homes but fell short in Affordable Multifamily and Mi'kmaw projects, though overall targets were met. E1 forecasts achieving the 19.8 GWh cumulative target by 2026. Table 12 details 2025 results.
Date Filed: March 31, 2026 Page 38 of 47 Multifamily Housing, and Mi'kmaw Home Energy Efficiency Project. See M10473, 2023-2025 DSM Resource Plan Compliance Filing, Appendix C, Executed Supply Agreement, Schedule E. Appliance replacements...
AI summary The text references multifamily housing and the Mi'kmaw Home Energy Efficiency Project, noting that appliance replacements under these programs are subsets of participating homes. It also cites a compliance filing and appendix related to the DSM Resource Plan.
Research activities in 2025 included: - Quarterly tracking of quality assurance, participant satisfaction, and other attitudinal metrics among Nova Scotia households took place throughout 2025, to help E1 respond to changing market conditi...
AI summary In 2025, research activities included quarterly tracking of household metrics and completion of surveys for E1 programs, including the Mi'kmaw Home Energy Efficiency Project and Demand Response. Findings informed program improvements and participant satisfaction tracking.
Innovation activities in 2025 included: - The deep retrofit navigator pilot concluded in Q2, with all participants completing their upgrades and final paperwork. The aim of the pilot, conducted in partnership with the Halifax Regional Muni...
AI summary In 2025, Nova Scotia launched multiple innovation pilots: a deep retrofit navigator pilot with HRM, a heat pump water heater market transformation pilot, a load flexibility demand response pilot, and research on mixed electric heating control solutions. Pilots highlighted challenges like cost and time, while emphasizing navigators' role in retrofit accessibility and exploring new demand response event types. E1 also installed monitoring systems to improve heat pump efficiency.
5. CONCLUSION - In 2025, E1 achieved 129.4 GWh of incremental annual net energy savings (87% of the 2025 Plan - target of 149.5 GWh), 23.6 MW of annual net peak demand savings (90% of the 2025 Plan target - of 26.3 MW), 6.8 MW of available...
AI summary E1 achieved significant energy savings and demand reductions in 2025, meeting most of its 2025 DSM Plan targets. It also exceeded its target for energy savings applicable to affordable housing and the Mi'kmaw Home Energy Efficiency Project. E1 expects to meet its 2023-2026 DSM Plan performance targets and is scheduled to file its Q1 2026 DSM report on May 25, 2026.
13 Existing Residential includes the following program components: Affordable Multifamily Housing, Efficient Product Installation, Green Heat, Home 14 Energy Assessment, Affordable Single-family Homes, Mi'kmaw Home Energy Efficiency Projec...
AI summary The Existing Residential program includes components such as Affordable Multifamily Housing, Efficient Product Installation, and the Mi'kmaw Home Energy Efficiency Project. The Home Energy Assessment program primarily serves homes heated by electricity, while the Appliance Retirement program collects appliances from BNI customers and residential participants.
ATTACHMENT 2: EVALUATOR AND VERIFIER RECOMMENDATION UPDATES Table 1: Update on Implementation of 2022-2023 Evaluation Recommendations Table 2: Update on Implementation of 2024 Evaluation Recommendations Table 3: Update on Implementation of...
AI summary Attachment 2 provides updates on the implementation of evaluation and verification recommendations from 2021-2023 and 2024, organized into four tables. It outlines progress on addressing prior recommendations and new ones for 2024, though specific details are not included in the provided text.
E-32025 DSM Evaluation Reports
17 passages
Table 3: 2025 Interviews Completed Program Component 1 Program Manager/ E1 Staff/Business Development Manager Service Providers/ Distributors/Retailers/Builders Participants Program Manager in Other Jurisdictions Residential Appliance Reti...
AI summary Table 3 outlines the number of interviews conducted in 2025 for various program components, including Residential, Business Energy Rebates, and Demand Response. The data indicates the involvement of program managers, service providers, participants, and managers from other jurisdictions.
Existing Residential In 2025, the net electrical energy savings for Existing Residential reached 35.274 GWh at the generator, while the net peak demand savings amounted to 9.584 MW at the generator. Existing Residential is comprised of Aff...
AI summary In 2025, Existing Residential programs achieved 35.274 GWh net electrical energy savings and 9.584 MW peak demand savings. The programs include Affordable Multifamily Housing, Affordable Single-family Homes, Efficient Product Installation, Green Heat, Home Energy Assessment, Mi'kmaw Home Energy Efficiency Project, and Residential Behaviour.
Table 8: 2025 Evaluated Net Lifetime Electrical Energy Savings at the Generator DSM Program Program Component Annual Net Electrical Energy Savings (GWh) Lifetime Net Electrical En ergy Savings (GWh) Weighted Average EUL (years) Share of An...
AI summary Table 8 presents the 2025 evaluated net lifetime electrical energy savings at the generator for various DSM programs, including appliance retirement, efficient product rebates, and home energy assessments. The table highlights the contribution of residential and BNI programs to annual and lifetime energy savings, with the residential subtotal contributing 36% of annual and 45% of lifetime savings, and BNI programs contributing 64% of annual and 55% of lifetime savings.
Table 11: Evaluated Net Electrical Energy Savings at the Generator, 2020-2025 Electrical Energy Savings (GWh) Electrical Energy Savings (%) DSM Program Program Component 2020 2021 2022 2023 2024 2025 2020 2021 2022 2023 2024 2025 Residenti...
AI summary This table presents evaluated net electrical energy savings by program and year from 2020 to 2025, highlighting contributions from residential and BNI (Business, Non-profit, and Institutional) programs. It includes energy savings from initiatives like appliance retirement, efficient product rebates, and home energy assessments, with percentages indicating the share of total savings.
EXECUTIVE SUMMARY This report presents the 2025 demand-side management (DSM) results of the Existing Residential program administered by EfficiencyOne (E1). This program is comprised of seven components: (1) Affordable Multifamily Housing...
AI summary This report details the 2025 demand-side management (DSM) outcomes for EfficiencyOne's Existing Residential program, which includes components like Affordable Multifamily Housing, Efficient Product Installation, and Home Energy Assessments. The program promotes energy efficiency through financial incentives and direct installations in residential and affordable housing sectors.
Table 2: Overall 2025 Existing Residential Participation and Evaluated Savings Participation Level Gross Savings NTGR Net Savings Value Unit Value Unit Value Value Unit AMH Electrical Energy Savings 98 Projects 1.378 GWh 1.00 1.378 GWh Lif...
AI summary Table 2 presents the 2025 residential participation and evaluated savings across various programs, including energy savings, GHG emission reductions, and net-to-gross ratios (NTGR). The data highlights participation levels, gross and net savings, and the effective useful life (EUL) of different initiatives such as AMH, ASFH, EPI, Green Heat, HEA, MHEEP, and Residential Behaviour.
21 MHEEP Overview This section describes the Mi'kmaw Home Energy Efficiency Project (MHEEP or the Project) program component, follows up on past evaluation recommendations, and provides an overview of MHEEP participation history.
AI summary This section outlines the Mi'kmaw Home Energy Efficiency Project (MHEEP), detailing its program component, follow-up on prior evaluation recommendations, and an overview of participation history within the initiative.
21.1 MHEEP Description MHEEP provides energy efficiency upgrades to homes in Mi'kmaw communities at no cost to participants or communities. E1 works with community housing managers (HMs), two delivery agents (DAs), and Mi'kmawpreferred con...
AI summary The Mi'kmaw Home Energy Efficiency Project (MHEEP) delivers free energy upgrades to Mi'kmaw communities in Nova Scotia through E1, community housing managers, delivery agents, and contractors. Funded by DSM and provincial sources, MHEEP aims for 0.548 GWh electrical savings and 0.156 MW peak demand reductions by 2025, including home assessments, insulation, heating upgrades, and moisture management measures.
21.2 Follow-up on Past Evaluation Report Recommendations No recommendations were made for MHEEP in the 2024 evaluation.
AI summary The 2024 evaluation of the Mi'kmaw Home Energy Efficiency Project (MHEEP) did not result in any recommendations being made, indicating that the program's performance or outcomes may have met existing criteria or required no further action.
21.3 Participation History As presented in [Figure](#page-61-0) 25 below, 157 participants completed projects and achieved electrical energy savings under MHEEP in 2025, representing an 18% decrease in participation (i.e. participants who...
AI summary In 2025, MHEEP saw an 18% drop in participants achieving electrical energy savings compared to 2024, despite stable average savings per participant. Total program savings fell by 16% for energy and 34% for peak demand, attributed to reduced participation.
23.2.1 Electrical Energy Savings For MHEEP, electrical energy savings are calculated based on HOT2000 simulation results adjusted with billing analysis results and unitary savings values for prescriptive measures, as shown in the equation...
AI summary Electrical energy savings for the Mi'kmaw Home Energy Efficiency Project (MHEEP) are calculated using HOT2000 simulation results, adjusted with billing analysis and unitary savings values for prescriptive measures. The formula incorporates adjustment ratios (AR) derived from 2024 billing analyses and EnerGuide ratings. The methodology references the National Renewable Energy Laboratory's Uniform Methods Project.
23.2.2 Peak Demand Savings Peak demand savings correspond to the demand savings that coincide in time with the peak demand period of the electricity system. The projected electricity peak demand period in Nova Scotia is between 5 p.m. and...
AI summary Peak demand savings in Nova Scotia are calculated during winter evenings (5-7 p.m., Dec-Feb). MHEEP uses a 0.283 MW/GWh ratio for space heating, validated by Navigant's 2016-2018 DSM Plan. Heat pumps are treated separately since 2021, with unitary savings based on capacity factors. Programmable thermostats use unitary values from the 2025 DSM MA, with no 2025 revisions.
23.2.4 Effective Useful Life As part of the 2025 DSM MA activities, the Evaluator reviewed the EUL values used in the calculation of electrical energy savings that are expected to persist over time. The EUL values for building envelope upg...
AI summary The Evaluator reviewed Effective Useful Life (EUL) values for building envelope upgrades and space heating equipment in the 2025 DSM MA activities, noting that EUL values for MHEEP measures remained unchanged. Calculations rely on data from HEA and MHEEP participants' installed measures.
24 MHEEP Key Findings and Recommendations As previously mentioned, the main objectives of the 2025 MHEEP evaluation were as follows: › Calculate gross and net MHEEP results, namely electrical first-year and lifetime electrical energy savin...
AI summary The 2025 MHEEP evaluation found net electrical energy savings (0.337 GWh) fell short of targets (0.548 GWh), while peak demand savings (0.319 MW) exceeded targets (0.156 MW). Participation dropped 18% to 157 participants, reducing total savings by 16% compared to 2024. Discrepancies in peak demand savings between evaluator and E1 arose from methodological changes.
Mi'kmaw Home Energy Efficiency Project Appendix XIII MHEEP: Tracking Sheet Audit Appendix XIV MHEEP: 2025 Recommendations
AI summary The document includes appendices related to the Mi'kmaw Home Energy Efficiency Project (MHEEP), specifically a tracking sheet audit (Appendix XIII) and 2025 recommendations (Appendix XIV), indicating ongoing evaluation and planning for the initiative.
APPENDIX XIII MHEEP Tracking Sheet Audit This appendix presents the main results of the tracking sheet audit performed by the Evaluator, which was aimed at: - › Verifying that all data fields required for the evaluation were included and f...
AI summary This appendix outlines the results of a tracking sheet audit conducted by the Evaluator to verify data completeness and accuracy in the MHEEP program. The audit ensured that all required fields were included and that calculations for energy and peak demand savings were consistent with previous evaluations.
APPENDIX XIV MHEEP 2025 Recommendations The Evaluator made no specific recommendation as part of the 2025 MHEEP evaluation.
AI summary The Evaluator did not make specific recommendations as part of the 2025 Mi'kmaw Home Energy Efficiency Project (MHEEP) evaluation, indicating that no actionable outcomes were proposed from the assessment.