Topic:"Infrastructure Planning" in M12780

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 Effic...

AI summary EfficiencyOne seeks approval for a 2027–2031 Demand-Side Management (DSM) Purchase Agreement with Nova Scotia Power Inc., along with establishing a final agreement and approving a DSM Resource Plan under the Public Utilities Act, R.S.N.S. 1989, c.380 as amended.

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: An Application by EfficiencyOne for Approval of a Demand-Side Management (DSM) Purchase Agreement between Ef...

AI summary The Nova Scotia Energy Board is considering EfficiencyOne's application to approve a DSM Purchase Agreement with Nova Scotia Power Inc., establish a final agreement between the parties, and approve a 2027–2031 DSM Resource Plan under the Public Utilities Act.

- As relates to the purpose of the More Access to Energy Act, Schedule B of Chapter 2 of the Acts of 2024 - ("More Access to Energy Act") (referenced in subsection 6(2)(e) of the ERBA ), it is set out in section 2 of - More Access to Energ...

AI summary The More Access to Energy Act aims to enhance competition, ensure reliable energy supply, and integrate environmental goals into energy regulation. It links sustainable development and prosperity with energy planning, requiring the NSEB to evaluate E1's DSM Plan for market competitiveness and sustainability.

2031 DSM Plan satisfies all requirements of section 79I: (a) it is for a term of five years (2027–2031); (b) it describes in detail the DSM that E1 will provide to NS Power, as set out in Appendix A; - (c) it identifies the amount NS Power...

AI summary The 2031 DSM Plan meets statutory requirements under section 79I, including a five-year term, detailed DSM provisions, payment terms, and alignment with the draft Purchase Agreement. The Preferred Plan is argued to benefit customers through cost-effective energy savings, affordability, equity, and alignment with the Integrated Resource Plan (IRP), while avoiding costly supply-side alternatives.

7 2.2.1 2023–2025 DSM PLAN DECISION 8 The following directives from the 2023–2025 DSM Plan Decision are relevant to this Application: - (a) To provide detailed plans and processes for each of its research initiatives prior to proceeding wi...

AI summary The 2023–2025 DSM Plan Decision outlines four directives for E1, including detailed planning, collaboration with NS Power, cost-effectiveness justification, and payback information. E1 is complying with these directives as part of its response to the NSEB's approval of the DSM Plan.

ng with this directive, E1 incorporated updated avoided costs from NS Power, from the 2022 Evergreen IRP in the 2026 DSM Extensio[n11](#page-20-1) and subsequently for the 2027–2031 DSM Plan as well. Specifically, E1 has used the avoided c...

AI summary E1 incorporated updated avoided costs from NS Power into its 2026 DSM Extension and 2027–2031 DSM Plan, noting differences in capacity and energy avoided costs. E1 references the More Access to Energy Act, requiring NSIESO to conduct integrated resource planning (IRP) and collaborate on demand-side management (DSM) calculations. Cross-references include NSUARB decisions and legislative sections.

2.3.1 THE 2022 INTEGRATED RESOURCE PLAN - The Standardized Filing Framework directs that the Resource Plan identified in NS Power's Integrated - Resource Plan ("IRP") will serve to inform the development of a Preferred DSM Plan by E1. The...

AI summary NS Power's 2022 Evergreen IRP includes 683.1 GWh energy savings and 123.9 MW demand savings through 2031. E1 must balance long-term DSM benefits with short-term affordability, guided by the 2016 Consensus Agreement and referenced decisions (M07543, M10473, M12249).

3 3.1 AFFORDABILITY - THE PRIMARY DESIGN CONSIDERATION 4 Consistent with the PUA and the NSEB's regulatory framework, affordability is the primary consideration 5 in the design of the 2027–2031 DSM Plan. The NSEB confirmed in its 2025 BCA...

AI summary Affordability is the primary focus for the 2027–2031 DSM Plan, with E1 maintaining $63.75M annual investment (total $318.75M) to avoid inflationary increases. This prioritizes short-term cost stability over long-term savings, reflecting economic pressures and DSMAG feedback. Customer incentives now account for 71% of costs, emphasizing direct rebates.

3.2.1 THE ROLE OF THE IRP IN ESTABLISHING THE APPROPRIATE LEVEL OF DSM ENERGY SAVINGS One of the primary planning considerations for the development of the DSM Plan is NS Power's IRP. The IRP represents the most recent, comprehensive, and...

AI summary The IRP is central to the DSM Plan, providing a stakeholder-vetted assessment of optimal resource mix for Nova Scotia's electricity needs. NS Power's 2022 IRP incorporates updated policies like GHG targets and renewable goals, with DSM energy savings levels serving as a benchmark. Key themes include decarbonization, renewables, and electrification.

3.3 DEMAND RESPONSE The demand response design in the 2027–2031 DSM Plan was informed by a combination of observed implementation experience, updated modelling assumptions, evaluation insights, DSMAG member feedback, and alignment with sys...

AI summary The 2027–2031 DSM Plan's demand response design prioritizes cost-effectiveness, achievability, and system value, informed by E1's refined assumptions, DSMAG feedback, and alignment with NS Power's IRP. Residential participation remains limited due to variable results, but Eco Shift's inclusion is justified for resilience and long-term maturation. Peer jurisdictions indicate improving cost-effectiveness over time.

3.3.1 WHY RESIDENTIAL LOAD CONTROL DEMAND RESPONSE MATTERS Strategic peak reduction can help lower long-term infrastructure costs and moderate upward pressure on electricity rates. The IRP identifies both increasing electrification and a g...

AI summary Residential load control demand response reduces infrastructure costs and moderates electricity rates by managing peak demand. Electrification trends, like heat pump adoption, increase peak demand, necessitating demand response programs. Eco Shift and Ontario's Peak Perks program demonstrate residential DR's role in grid flexibility. Expansion aligns with IRP planning and discussions with NS Power and NSIESO.

3.4 SOLAR-PV - E1 submits that customer sited solar-PV falls squarely within the statutory definition of demand-side - management under section 79A(b)(v), which includes DSM activities relating to "the delivery of a - reduction in the amou...

AI summary E1 argues customer-sited solar-PV qualifies as demand-side management (DSM) under the PUA, reducing NS Power's required supply. The program targets Mi'kmaw communities to address participation barriers, align with equity goals, and support reconciliation. The 2027–2031 DSM Plan includes 200 installations (0.9% of total DSM investment) focused on these communities, with future expansion contingent on cost-effectiveness and Energy Board approval.

3.5 STRATEGIC ELECTRIFICATION Strategic electrification was added to E1's mandate by way of an update to section79A(b)(iv) of the PUA in 2022, as outlined in section [2.1.1](#page-8-3) above. The NSEB, in its decision on E1's BCA clarified...

AI summary Strategic electrification was added to E1's mandate via a 2022 PUA update. The NSEB requires strategic electrification to reduce both GHG emissions and electricity costs. E1 supports its inclusion in the 2027–2031 DSM Plan if it meets these criteria, though the Clean Power Plan lacks cost assumptions for guidance. The 2022 Evergreen IRP includes electrification scenarios but not optimal savings levels.

1 4. AFFORDABILITY 2 Affordability continues to be a critical factor in determining the level of investment in a DSM Plan. E1 has 3 heard from several members of the DSMAG over the past several DSM Plans that consideration of short-4 term...

AI summary Affordability remains a key consideration in DSM Plan investments. E1 maintains annual investment at the 2026 level of $63.75 million without inflationary increases, balancing short-term affordability concerns (e.g., rising housing/energy costs) against NS Power's IRP-driven long-term economic benefits for ratepayers.

4 Figure 3: 2026 DSM Plan Expenditures

AI summary Figure 3 outlines 2026 Demand-Side Management (DSM) Plan expenditures, part of a Nova Scotia regulatory proceeding. It references entities like NS Power, NSEB, and E1, with context on energy planning and regulatory frameworks under the Public Utilities Act and Energy and Regulatory Boards Act.

5.3 AVOIDED ENERGY AND CAPACITY INVESTMENTS - DSM provides value to ratepayers in part by avoiding investments associated with supply side resources. - In Nova Scotia, the following categories of avoided system costs are applied to DSM: -...

AI summary Demand-Side Management (DSM) in Nova Scotia avoids energy and capacity investments by reducing demand. The Preferred Plan emphasizes energy efficiency, demand response, and solar-PV initiatives. Categories of avoided costs include energy, capacity, transmission, and distribution. EfficiencyOne (E1) expanded demand response programs to address NS Power's growing demand.

s near-term affordability with long-term value by constraining investment to 2026 levels, during a period of significant cost-of-living challenges for Nova Scotians; 6 transmission, and distribution; - 1 (c) provides equitable access to DS...

AI summary The Preferred Plan ensures near-term affordability and long-term value by limiting investments to 2026 levels, promoting equitable DSM benefits across customer classes, achieving energy savings below supply-side costs, and aligning with NS Power's IRP. It complies with ERBA and NSEB directives, supporting competition, innovation, and GHG emission reductions through energy efficiency and strategic electrification.

GLOSSARY OF TERMS Term Definition DSM Demand Side Management DSMAG Demand Side Management Advisory Group DR Demand Response E1 EfficiencyOne EV Electric Vehicle GHG Greenhouse Gas HVAC Heating, Ventilation, Air Conditioning IRP Integrated...

AI summary This section provides a glossary of terms and acronyms relevant to energy regulation and management in Nova Scotia. It defines key terms such as Demand Side Management, Integrated Resource Plan, and Public Utilities Act, along with their corresponding acronyms and organizations.

1.1 OBJECTIVES OF THE 2027–2031 DSM PREFERRED PLAN - E1's objectives for the 2027–2031 DSM Preferred Plan include: - 1. deliver cost-effective demand side resources that support the successful implementation of a long-term electricity stra...

AI summary E1's 2027–2031 DSM Preferred Plan aims to deliver cost-effective demand-side resources aligned with ratepayer interests, ensure equitable access to services, and foster transparent stakeholder collaboration in resource planning.

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.

2.2.5 AVAILABLE DEMAND RESPONSE CAPACITY Demand response was introduced as a new program in 2023 following pilot initiatives undertaken from 2020-2022. In the 2023 season (December 1, 2022 to February 28, 2023), early implementation challe...

AI summary Demand Response (DR) program challenges in 2023–2025 included participant drop-outs, operational constraints, and technical issues like controller removals. E1 adjusted strategies for 2026, improving engagement and infrastructure, leading to early 2026/2027 results doubling 2024/2025 capacity. Target of 16.3 MW available capacity is expected to be met.

3.3 MODELLING - The "modelling process" refers to the use of DSM portfolio design tools to assess the comparative costs, - savings, and cost-effectiveness of various DSM resource scenarios to determine the Preferred portfolio - design for...

AI summary The modelling process evaluates DSM resource scenarios using ProCESS™ and DRSIM™ tools to assess cost-effectiveness, energy impacts, and expenditures for the 2027–2031 DSM Resource Plan. Guidehouse supports E1 in developing the preferred portfolio design through these analyses.

8 3.3.1 MODELLING PROCESS - 9 The following sections provide a high-level overview of the 2027–2031 DSM Resource Plan modelling - process, followed by a description of each stage in the process.

AI summary The text outlines the high-level overview and stages of the 2027–2031 DSM Resource Plan modelling process, focusing on Demand Side Management strategies.

3.3.1.1 MODEL CONFIGURATION - At the outset of the modelling process, E1 and Guidehouse reviewed and confirmed the overall modelling - framework for the 2027–2031 DSM Resource Plan, and configured the following modelling tools - associated...

AI summary E1 and Guidehouse configured ProCESS™ and DRSim™ models for the 2027–2031 DSM Resource Plan, aligning with NSEB directives. Model updates ensured parameters, inputs, and methodologies met E1's planning requirements and regulatory standards.

7.1 LOCATIONAL DEMAND RESPONSE The value of demand response is not uniform across the electricity system. Deploying resources in areas where the distribution or transmission network is constrained can help defer or avoid capital infrastruc...

AI summary The document discusses the importance of locational demand response in Nova Scotia, emphasizing collaboration with NS Power to align DR deployment with constrained grid areas. E1 highlights the need for granular AMI data, including feeder IDs, to target programs effectively. It also notes E1's role in the DER Integration Roadmap, expected in 2026, to align DR with system planning.

1 Table 58: 2027–2031 DSM Planning

AI summary Table 58 outlines Demand Side Management (DSM) planning for the years 2027–2031 as part of a Nova Scotia regulatory proceeding, focusing on energy efficiency, demand response, and integrated resource planning strategies.

1. Update E1's 2026 potential study Together with its consultants, E1 will complete an update of its 2026 potential study during the 2027–2031 Plan period, both to inform its 2032-2036 DSM Plan and to contribute to an expected Integrated R...

AI summary E1 will update its 2026 potential study during the 2027–2031 Plan period to inform its 2032-2036 DSM Plan and contribute to the Nova Scotia Independent Energy System Operator's Integrated Resource Plan Evergreen process.

2. Support Integrated Resource Plan Evergreen process as required E1 will support, as required and requested, an expected Integrated Resource Plan Evergreen process by the Nova Scotia Independent Energy System Operator during the 2027–2031...

AI summary E1 will support the Nova Scotia Independent Energy System Operator's Integrated Resource Plan Evergreen process during the 2027–2031 Plan period as required. This involves collaboration to ensure alignment with energy planning objectives.

2. Further develop the evaluation process With its evaluator, E1 will develop the approach for the division of funds, savings, and projections between Plan periods and establish a standard process for future Market Transformation programs....

AI summary E1 will collaborate with its evaluator to establish a process for dividing funds, savings, and projections across Plan periods and standardize future Market Transformation programs. The Heat Pump Water Heater pilot will be evaluated during 2027–2031 to assess savings potential and process improvements, with a note that Market Transformation programs require extended planning horizons due to delayed measurable outcomes.

1 13.4.5 RATE AND BILL IMPACT ANALYSIS - 2 E1 files its historical Rate and Bill Impact Analysis (RBIA) and forward-looking RBIA as part of each DSM - Resource Plan.[26](#page-199-1) 3 The historical RBIA estimates the high-level, long-ter...

AI summary E1 submits historical and forward-looking Rate and Bill Impact Analysis (RBIA) as part of its Demand Side Management (DSM) Resource Plan. The historical RBIA covers past DSM activities and approved investments, while the forward-looking RBIA estimates impacts of proposed DSM activities. Appendix B contains the RBIA for the 2027–2031 DSM Resource Plan.

Table 7: Demand Response 2027-2031 Demand Response 2028 3.1 2029 4.1 Residential/Charitable (2,3,4) 2030 4.4 2031 4.2 2027-2031 18.7 2027 0.2 2028 0.2 Small General (10) 2029 0.2 2030 0.2 2031 0.2 2027-2031 1.1 2027 1.4 2028 1.3 General (1...

AI summary The document presents a table outlining projected demand response (DR) participation across various sectors from 2027 to 2031, including residential, small and large general, industrial, municipal, and unmetered categories. It also outlines the structure of an innovation plan under DSM Enabling Strategies, including governance, project classification, and focus areas.

2.1 Innovation Oversight The Executive Leadership Team oversees E1's innovation activities, providing strategic direction, approvals, and compliance oversight. - Responsibilities include: - Reviewing and approving innovation projects; - De...

AI summary The Executive Leadership Team oversees E1's innovation activities, ensuring alignment with strategic goals, 2027–2031 DSM priorities, and available resources. Responsibilities include project approval, resource allocation, and performance monitoring through success metrics.

2.2 Annual Innovation Plan - Each year, E1 establishes an Innovation Plan that summarizes all ongoing and newly committed projects. It includes project descriptions, scope, timelines, and estimated resource requirements, - serving as the b...

AI summary E1's Annual Innovation Plan outlines ongoing and new projects, including descriptions, timelines, and resource needs. It guides internal commitments between leadership and staff, serving as a roadmap for current and planned initiatives. Progress and insights are reported in E1's DSM Quarterly and Annual Progress Reports.

3.2 Project Workflow The following project workflow in Figure 1 illustrates how Innovation activities move from concept and planning through to project close. The concept phase captures the selection, scoping and submission of projects for...

AI summary The project workflow outlines a three-phase process: concept selection and approval by the Executive Leadership Team, detailed planning considering resources and implementation approaches, and post-closure actioning of insights or recommendations for full-scale projects. Pilots trigger recommendations for the programs team.

1 Figure 1: Project development workflow 2 DATE FILED: March 31, 2026 Page 4 of 14

AI summary Document chunk from a Nova Scotia regulatory proceeding featuring 'Project development workflow' figure, dated March 31, 2026. Context includes energy sector acronyms and regulatory entities involved in utility planning and oversight.

3.3 Project Ideation - Ideation for new projects can come from various sources but is fundamentally focused on developing solutions that address challenges and explore new opportunities. Examples of sources for insights and findings includ...

AI summary Project ideation sources include Integrated Resource Planning, DSM studies, E1's programs, market research, and emerging technologies, aiming to address challenges and opportunities. Key inputs are program evaluations, jurisdictional scans, and data analytics.

3.4 Project Selection and Overview of Investment by Focus Area - Project ideas are screened using Focus Areas as a primary screen and Innovation Goals to - establish direction for Innovation projects and establish evaluation metrics how su...

AI summary Project ideas are evaluated using Focus Areas and Innovation Goals, which remain static during the 2027-2031 DSM plan period. This framework establishes direction and evaluation metrics for innovation projects.

3.4.1 Focus Areas - The primary screening criteria for project selection are Focus Areas. For the 2027-2031 DSM - plan, there are five areas which are of emerging importance to the electricity system, or are of - economic benefit to rate-p...

AI summary The 2027-2031 DSM plan uses Focus Areas as primary project selection criteria, emphasizing five areas critical to the electricity system or offering long-term economic benefits to rate-payers. A table details projected expenditures by Focus Area.

5 The Innovation Goals, justification and key activities for each of the Focus Areas are shown below in [Table 2.](#page-220-3) Focus Area Innovation Goal(s) Justification Key Activities 2. Advance performance & DSM readiness of DERs for e...

AI summary The text outlines innovation goals and key activities related to advancing performance and Demand Side Management (DSM) readiness of Distributed Energy Resources (DERs). It emphasizes reducing grid strain, supporting non-wires alternatives, and improving collaboration between planning, operations, and DSM teams. Key activities include coordination with NS Power and the Nova Scotia Independent Energy System Operator, and adapting DERMs for use within DR programming.

"Total-Savings" tab The "Total-Savings" tab provides a sum of annual class savings in energy and demand usage at the generator's gate and customer's meter. In addition, class demand savings at the high side of the bulk power substation are...

AI summary The 'Total-Savings' tab calculates annual energy and demand savings at the generator's gate and customer's meter, including avoided fuel, generation, transmission, and distribution costs. FAM-related avoided costs use unit fuel costs multiplied by energy savings, while non-FAM costs use avoided infrastructure costs per MW demand savings.

4 List of Schedules 5 6 Schedule "A": Electricity Efficiency And ConservationDemand-side Management 7 Activities 8 Schedule "B": Compensation 9 Schedule "C": Performance Requirements 10 Schedule "D": Confidentiality Agreement 11 Schedule "...

AI summary The document outlines five schedules related to electricity efficiency, compensation, performance requirements, confidentiality, and an approved DSM resource plan. Key focus areas include demand-side management, energy conservation, and regulatory compliance frameworks.

35 9. EFFICIENCYONE'S COVENANTS - 36 9.1 EfficiencyOne warrants, covenants and agrees with NSPI that: - 37 (a) it has all requisite capacity and authority to execute, deliver and perform its 38 obligations under this Agreement;

AI summary EfficiencyOne (E1) warrants to Nova Scotia Power Incorporated (NSPI) that it has the requisite capacity and authority to fulfill obligations under the agreement. This section outlines E1's covenants regarding its ability to perform.

Appendix E Proposed Form of DSM Purchase Agreement (Clean) 2027-2031 DSM Resource Plan 1 2 Purchase Agreement for 3 Demand-Side Management Activities 4 5 Between 6 7 Nova Scotia Power Incorporated 8 9 and 10 11 EfficiencyOne 12 13 Effectiv...

AI summary Proposed DSM Purchase Agreement between Nova Scotia Power Incorporated (NSPI) and EfficiencyOne (E1) for 2027-2031, outlining Demand-Side Management (DSM) activities. The agreement is part of a regulatory proceeding, with an effective date of January 1, 2027, and was filed on March 31, 2026.

26 Table 1: Glossary of Terms Term Definition Demand Response Demand response measures generate savings that reduce load or provide available capacity in response to events called by the utility, typically 1-4 hours during peak periods. E1...

AI summary The glossary defines key terms related to demand response, energy efficiency, and integrated resource planning. It includes definitions for terms such as 'Demand Response,' 'Effective Useful Life,' and 'Lifetime benefits,' emphasizing metrics like energy savings, peak demand reduction, and cost avoidance.

4.1 Objectives - Ensure consistency in the overall Demand Side Management (DSM) planning, evaluation, 4 reporting in Nova Scotia; - Consolidate Board decisions and directives as they pertain to DSM; and - Ensure that DSM Resource Plans bal...

AI summary The objectives focus on ensuring consistency in Demand Side Management (DSM) planning and reporting in Nova Scotia, consolidating Board decisions related to DSM, and balancing DSM Resource Plans to meet multiple objectives.

4.2.1 DSM Baseline Study - E1 will work with the NSIESO on IRP activities, [6](#page-418-1) which may include commissioning a DSM baseline - study in advance of each DSM Potential Study to identify current stocks of electricity consuming -...

AI summary E1 is collaborating with NSIESO on IRP activities, including commissioning a DSM baseline study prior to each DSM Potential Study to identify current electricity-consuming devices across all market sectors.

4.2.2 DSM Potential Study - E1 will work with the NSIESO on IRP activities, 6 including the commission of a DSM Potential study - in advance of each IRP exercise. The DSM Potential study identifies DSM resources that are - achievable over...

AI summary E1 will collaborate with NSIESO on IRP activities, including commissioning a DSM Potential study before each IRP exercise. The study identifies achievable DSM resources over the planning horizon and informs Candidate Resource Plans for the IRP.

4.2.3 Integrated Resource Plan - Integrated resource planning establishes directional information for DSM planning. The Preferred - Resource Plan identified in the IRP will inform the development of a preferred DSM Resource Plan - by E1, i...

AI summary The Integrated Resource Plan (IRP) provides directional guidance for Demand Side Management (DSM) planning. The Preferred Resource Plan in the IRP will inform E1's development of a preferred DSM Resource Plan, including analysis of alternate DSM scenarios as per the Framework.

4.3 DSM Resource Plan Development

AI summary This section discusses the development of a Demand Side Management (DSM) Resource Plan, focusing on strategies to manage energy demand, improve efficiency, and integrate programs like demand response and energy efficiency initiatives.

4.4 DSM Tracking, Evaluation and Verification - 4.4.1 Tracking - 9 E1 will track the energy and capacity savings by program and report results in quarterly reports. - 4.4.2 Evaluation - E1 will retain the services of an independent DSM eva...

AI summary E1 will track DSM program savings, conduct annual evaluations, and submit quarterly and annual reports. The NSEB's Board verifies savings. DSM Resource Plans are filed every five years, with mid-course adjustments and mid-term check-ins pending NSEB decisions. Reporting includes APRs, performance indicators, and compliance with Board-approved targets.

DATE FILED: May 28, 2026 E1 (CA) IR-01 Page 1 of 1 1 Request IR-02: 2 3 Reference: Evidence, page 27, line 19-20. 4 5 Please provide, in MS Excel format, the inputs and results for E1's IRP scenario modeling 6 efforts. 7 8 Response IR-02:...

AI summary A request is made for the inputs and results of E1's Integrated Resource Plan (IRP) scenario modeling efforts, with a response directing the requester to Attachment 1 of the IR response.

omic conditions affecting Nova Scotians at any given time. This balancing approach will remain central to E1's DSM planning process going forward. (c) Please refer to E1's response to NSEB IR-03 (a). - Request IR-09: - Reference: Evidence,...

AI summary The document discusses the need for comparable graphs and tables related to DSM planning, specifically addressing payback analysis and average rate impacts for different scenarios, including the IRP DSM scenario and the Preferred Plan. E1 has responded by providing requested visual and tabular data.

6 Table 3: IRP Energy Efficiency (EE) Scenario (Round 2 modelling) – Average Rate Impacts over 2027 - 2046 Residential Small General Large Small Medium Large Municipal General General Industrial Industrial Industrial Energy Efficiency (EE)...

AI summary Table 3 presents the average rate impacts of the Integrated Resource Plan Energy Efficiency (EE) Scenario from 2027 to 2046, showing varying percentages across different customer classes such as residential, small general, large industrial, and municipal.

9 Table 3 reflects preliminary modelling completed by E1 in February 2026. DATE FILED: May 28, 2026 E1 (CA) IR-10 Page 2 of 2 Request IR-11: - Reference: Evidence, page 44, Figure 6 Average Rate and Total Customer Bill Impacts as a Result...

AI summary The document includes responses to requests for graphs comparing the impact of DSM activities under the IRP scenario to the preferred plan, with figures provided by E1 based on preliminary modelling from February 2026.

Request IR-03: Reference: Exhibit E-1, Application, Section 3.2.1, pages 26–27/71. Preamble: E1's Preferred Plan proposes 435.4 GWh in cumulative energy savings over 2027–2031, representing approximately 64% of the 683.1 GWh savings target...

AI summary E1 has engaged with IESO-NS through the DSMAG and as a stakeholder in the inaugural IRP development process, and has met individually to discuss DSM Potential Study needs. E1's DSM Plan proposes 435.4 GWh in energy savings over 2027–2031, representing 64% of the 2022 Evergreen IRP target, which E1 views as a short-term affordability trade-off.

LED: May 28, 2026 E1 (IG) IR-03 Page 1 of X facilitated by the IESO-NS. E1 has also met individually with the IESO-NS to discuss DSM Potential Study needs that the IESO-NS has for the inaugural IRP. (b) E1's current understanding is that u...

AI summary E1 discusses its understanding of the IESO-NS's role in developing updated avoided costs for the IRP and how its mid-course adjustment process operates independently of IRP cycles. E1 anticipates updated avoided costs to be finalized in 2027 and acknowledges that changes in IRP outcomes will inform its mid-term check in.

1 acknowledges that these changes will inform E1's proposed mid-term check in. For additional detail please refer to E1's response to Synapse IR-72. DATE FILED: May 28, 2026 E1 (IG) IR-03 Page 2 of X Request IR-04: Reference: Exhibit E-1,...

AI summary The response to IR-04 explains that E1 relied on findings from the Integrated Resource Plan (IRP) which recognize demand response as a valuable resource for managing peak demand and system reliability. The IRP findings informed the scale and role of demand response within the DSM portfolio to avoid undue delivery or affordability risks.

ii) Please refer to part (e) i) of this IR response. Request IR-07: Reference: Exhibit E-1, Application, page 40/71, lines 19–21. Over the same time period in which the investment of $318.75 million is made, the Preferred Plan will achieve...

AI summary The response confirms that 'avoided utility costs' and 'lifetime customer benefits' are equivalent. These costs include avoided costs of capacity, energy, transmission, and distribution. Carbon costs are included in the model via the Nova Scotia Output Based Pricing System (NS OBPS), with a price of $110/tonne CO2e for 2026, increasing annually until $130/tonne CO2e in 2030.

Application. The updated process is more fully described in E1's response to NSEB IR-30. - 5 ii) Please refer to part (b) i) of this IR response. 4 DATE FILED: May 28, 2026 E1 (IG) IR-16 Page 5 of 5 Request IR-17: Reference: Exhibit E-1, A...

AI summary E1 is updating its 2026 DSM Potential Study to inform the NSIESO's 2026 Integrated Resource Plan and contribute to the 2027–2031 Plan period. The update will consider alternative program designs, incentives, and technical assistance for industrial customers, and the study's objectives include improving rate benefits for medium and industrial participants.

ova Scotia Independent Energy System Operator's (NSIESO) 2026 Integrated Resource Plan (IRP). The referenced statement reflects E1's expectations that there will be an update to the 2026 DSM Potential Study to inform the 2032–2036 DSM Plan...

AI summary E1 outlines its expectations for updating the 2026 DSM Potential Study to inform the 2032–2036 DSM Plan and the IRP process led by the NSIESO. The primary objective of the study is to project technically achievable and cost-effective DSM potential, not to assess rate or bill impacts. Rate and bill impacts are evaluated separately through the RBIA.

E1 Responses to Nova Scotia Energy Board (NSEB) Information Requests NON-CONFIDENTIAL 1 concluded that maintaining current investment levels - rather than seeking growth - was 2 the appropriate and responsible approach at this time. 3 4 E1...

AI summary E1's 2027–2031 DSM Plan prioritizes customer incentives and long-term affordability, with a focus on maintaining current investment levels rather than pursuing growth. The plan emphasizes customer benefits, including long-term savings and a five-year payback period, while capping spending at previously approved levels. E1 acknowledges that this approach may result in lower long-term energy savings compared to the Integrated Resource Plan.

E1 Responses to Nova Scotia Energy Board (NSEB) Information Requests NON-CONFIDENTIAL 1 affordability is the appropriate course at this time. E1 wishes to be clear that this 2 constrained investment level is a response to specific and extr...

AI summary E1 acknowledges constrained DSM investment due to economic conditions but reaffirms long-term commitment to Base-level DSM (1.2% load savings) aligned with the IRP. They provide an estimated PCR for the 2027–2031 DSM Plan, noting it is subject to change upon NS Power's DCRR filing.

1 Series, the Avoided Cost of Energy has increased between updates for the years 2027- 2 2031. 3 4 Capacity Costs have increased over the entire time horizon due to an increase in 5 market costs, between updates, for new resources selected...

AI summary The Avoided Cost of Energy has increased between updates for the years 2027–2031. Capacity Costs have also increased due to market costs for new resources. EfficiencyOne (E1) uses the Integrated Resource Plan (IRP) process for emissions forecasts and engages an independent consultant to evaluate DSM programs annually, incorporating updated emissions data into its planning cycles.

E1 Responses to Nova Scotia Energy Board (NSEB) Information Requests NON-CONFIDENTIAL 1 Request IR-05: 25 26 1 Response IR-05: 2 3 (a) 4 i) EfficiencyOne (E1) has not had any further discussions with NS Power or the Nova 5 Scotia Independe...

AI summary EfficiencyOne (E1) has not had discussions with NS Power or the NSIESO since February 2026, but NS Power has acknowledged a request for long-run marginal emissions rates. E1's 2027–2031 DSM Plan Application calculates emissions impacts by multiplying net energy changes by fuel-specific emissions intensities derived from the 2022 Evergreen Integrated Resource Plan (IRP).

Regarding Section 2.3 "Standardized Filing Framework" of the Application: - (a) Section 2.3.1 "The 2022 Integrated Resource Plan", pdf pgs. 28-29 state: "The Standardized Filing Framework directs that the Resource Plan identified in NS Pow...

AI summary The document discusses the 2022 Integrated Resource Plan (IRP) and its use in developing E1's 2027–2031 DSM Plan. It highlights the need to incorporate findings from NS Power's 2025 IRP Action Plan Update and address the 'Hybrid Peak Electrification Scenario.' The numbers in E1's DSM Plan are lower than those in the IRP, raising questions about alignment and considerations of affordability.

1 2022 Evergreen IRP. Further, on pdf pg. 34 of Exhibit E-1, E1 states: "E1 also 2 modelled a third scenario that reflected energy savings levels consistent with the 3 IRP." 4 • Please identify the estimated DSM investment over 2027-2031 t...

AI summary The text discusses the 2022 Evergreen Integrated Resource Plan (IRP) and requests for information regarding DSM investment estimates, baseline studies, and avoided cost calculations. It also references collaboration between E1 and the NSIESO on IRP activities.

- 3 (a) Yes. For the purposes of informing the development of the DSM Plan, specifically the 4 levels of DSM (energy savings, demand savings and available capacity), EfficiencyOne (E1) 5 understands there to have been no changes to the DSM...

AI summary EfficiencyOne (E1) confirms that the 2025 Integrated Resource Plan (IRP) Action Plan has not changed DSM levels from the 2022 Evergreen IRP Update. E1 modeled energy efficiency and demand response scenarios aligned with the IRP for the 2027–2031 DSM Plan, with investments of $464 million and $47 million, respectively. E1 has not yet commissioned a DSM baseline study, which is planned for a future DSM Potential Study.

M12349, Nova Scotia Power, 2025 Load Forecast Report, June 27, 2025, page 10. Year First Year Net Savings Energy Savings (GWh) 2025 NS Power Load Forecast1 (GWh) First Year Net Savings Energy Savings % of Load 2027 121 11,193 1.1% 2028 101...

AI summary The document discusses Nova Scotia Power's 2025 Load Forecast Report, highlighting energy savings projections from 2027 to 2031 and referencing EfficiencyOne's preferred plan, which aligns with the Integrated Resource Plan while prioritizing short-term affordability. It also mentions the demand response design in the 2027–2031 DSM Plan, informed by various factors including modeling assumptions and stakeholder feedback.

Scenario planning: Strategic method used to create agile action plans by envisioning multiple plausible future scenarios to anticipate and capitalize on potential changes, uncertainties, and opportunities. Appendix IV:

AI summary Scenario planning is described as a strategic method to develop agile action plans by envisioning multiple plausible future scenarios to anticipate and capitalize on changes, uncertainties, and opportunities.

er jurisdictions have applied different approaches for measure level testing, choosing to exclude administration costs as these can vary greatly depending on the maturity of the measure in the market. In conducting cost effectiveness scree...

AI summary The document discusses Nova Scotia's approach to cost effectiveness and avoided costs in energy efficiency programs, noting that ENS uses the EERAM model for long-term planning and that avoided costs are updated every three to four years. Nova Scotia's methodology differs from other jurisdictions, as it sets avoided capacity costs at $0/kW until 2019, affecting how benefits are claimed by measures and projects.

Long-term: Years 3+ Date Filed: May 28, 2026 Considerations in this phase require additional strategic planning and resources, are less urgent, or are dependent on the execution of considerations in previous phases. Examples include a form...

AI summary This section outlines long-term considerations for the proceeding, including the need for strategic planning and resources, with examples such as a formal recognition program and a modular learning approach. Short-term considerations for Year 1 include framework development, process automation, and an employee referral program.

Request IR-37: Evidence – Exhibit E-1, pp.1-71 (pdf pp. 8-78) Absent any specific demand or energy reduction targets requested by NS Power or IESO-NS, please explain how E1 determined that the quantities and associated expenditures in its...

AI summary EfficiencyOne (E1) explains that its 2027–2031 DSM Preferred Plan is based on the Integrated Resource Plan (IRP) and other factors such as affordability and achievability, aiming to reduce electricity costs, increase consumer awareness, and support climate change initiatives in Nova Scotia.

E1 Responses to Nova Scotia Energy Board (NSEB) Information Requests NON-CONFIDENTIAL 1 • For the programs that fail the PAC test in Appendix A of Exhibit E-1 21 basis and will depend on a number of factors prevailing at the time, includin...

AI summary E1, Nova Scotia Power, explains that the determination of whether Demand Side Management (DSM) programs fail the Payback Analysis Criteria (PAC) test depends on various factors, including supply-side costs, the Integrated Resource Plan, avoided costs, program delivery costs, and market conditions. E1 emphasizes that this assessment will be made through evidence filed in future plan cycles and subject to Board review.

Request IR-48: Appendix A - Preferred Plan pp. 1-112 (Attach. 1-5) Regarding Appendix A, Attachment 1: worksheet AVC Energy & Capacity: please describe how the Capacity Adjustment for Planning Reserve Margin was derived . 8 Response IR-48:...

AI summary The Capacity Adjustment for Planning Reserve Margin (PRM) was derived by applying a 9% PRM to the levelized avoided cost of capacity, as determined by E3 in the 2019 study. This approach assumes that the avoided cost of capacity also reduces the relative cost of the PRM, used in the 2020 and 2023 Integrated Resource Plans.

DATE FILED: May 28, 2026 E1 (SNS) IR-12 Page 5 of 5 1 Request IR-13: IRP Benchmark, Preferred Plan, and Affordability Trade-off 26 (b) In the development of the 2027–2031 Preferred Plan and the various rounds of modelling, 27 EfficiencyOne...

AI summary The document references a request (IR-13) related to the 2027–2031 Preferred Plan and Affordability Trade-off. EfficiencyOne (E1) is noted for reducing discretionary costs during the development of the plan and modelling rounds.

Scenarios 1EE-Base & 2EE-High - Base scenario investment is aligned with both the Base DSM investment in the current Integrated Resource Plan (IRP) and the Base EE scenario modelled in Round 2 2026-2030. - High scenario has higher particip...

AI summary The document outlines two scenarios, Base and High, for energy efficiency investments. The Base scenario aligns with current Integrated Resource Plan (IRP) and Base EE models, while the High scenario assumes higher participation driven by programs like Instant Savings and Efficient Product Installation, and a 5% annual increase in investment as per DSMAG feedback.

Scenarios 1DR-Base & 2DR-High - Base scenario aligns with a year over year average increase of 2.5 MW compared to the 2026 DSM Extension target of 16.3 MW. - High scenario aligns with achieving 90% of the Base DR in the IRP. - High scenari...

AI summary The Base scenario aligns with a 2.5 MW annual increase in demand response (DR) capacity, while the High scenario aims for 90% of the Base DR in the Integrated Resource Plan (IRP). The High scenario is driven by higher residential participation in Eco-Shift, particularly through DLC-smart thermostats and DLC-water heaters. These scenarios focus on demand-side management and capacity planning through 2031.

Table 1: STANDARDIZED FILING FRAMEWORK ITEM DESCRIPTION 3.1 Development of the Upcoming Period's DSM Program Targets and Investment A summary of: - the parties involved in developing the proposed DSM Resource Plan; - NS Power's the most re...

AI summary The document outlines the standardized filing framework for the upcoming period's DSM Program Targets and Investment, including the parties involved in developing the proposed DSM Resource Plan, NS Power's most recent Integrated Resource Plan results, affordability considerations, cost-efficiency opportunities, and key global assumptions.

4.2.1 DSM BASELINE STUDY EfficiencyOne will commission a DSM baseline study in advance of each DSM Potential Study. The DSM Baseline Study will identify current stocks of electricity consuming devices in all market sectors.E1 will work wit...

AI summary EfficiencyOne will commission a DSM baseline study before each DSM Potential Study to identify current electricity-consuming devices across all market sectors and collaborate with NSIESO under the More Access to Energy Act for integrated resource planning.

4.2.2 DSM POTENTIAL STUDY EfficiencyOne will commission a DSM potential study in advance of each Integrated Resource Plan (IRP). The DSM Potential study will identify DSM resources that are achievable over the planning horizon, and will in...

AI summary EfficiencyOne will commission a DSM potential study prior to each Integrated Resource Plan (IRP). The study aims to identify achievable demand-side management (DSM) resources and inform the development of Candidate Resource Plans. The process is aligned with the More Access to Energy Act and involves collaboration with the NSIESO.

4.2.3 INTEGRATED RESOURCE PLAN Nova Scotia Power's IRP develops a long-term Preferred Resource Plan that establishes directional information for DSM that assists NS Power in meeting customer demand and energy requirements, and environmenta...

AI summary Nova Scotia Power's Integrated Resource Plan (IRP) outlines a long-term strategy for managing demand-side management (DSM) to meet customer demand and environmental obligations. The NSIESO is required to collaborate with the franchise holder to develop avoided cost calculations for DSM resources and file the results of IRP exercises with the Energy Board.

4.2.3.1 AVOIDED COSTS Nova Scotia Power will provide estimates of annual avoided costs of fuel on a per-MWh basis, and annual avoided costs of generation, transmission, and distribution on a per-kW basis to EfficiencyOne for use in the cos...

AI summary Nova Scotia Power will provide avoided cost estimates to EfficiencyOne for use in DSM planning processes. These estimates will be updated before each DSM Potential Study and when changes are needed. The NSIESO will take over responsibility for avoided cost calculations as part of the IRP process following the implementation of the More Access to Energy Act on April 1, 2025.

4.3 DSM RESOURCE PLAN DEVELOPMENT The Preferred Resource Plan identified in the IRP that will inform the development of a preferred DSM Resource Plan by EfficiencyOne, including analysis of alternate scenarios of DSM activity, in accordanc...

AI summary The Integrated Resource Plan (IRP) provides directional information for Demand Side Management (DSM) that will guide EfficiencyOne in developing a preferred DSM Resource Plan, including analysis of alternate scenarios, following the Standardized Filing Framework.

Table 1: STANDARDIZED FILING FRAMEWORK ITEM DESCRIPTION 3. DEVELOPMENT OF THE UPCOMING PERIOD'S DSM RESOURCE PLAN 3.1 Development of the Upcoming Period's DSM Program Targets and Investment A summary of: - the parties involved in developin...

AI summary The text outlines the development of the upcoming period's Demand Side Management (DSM) Resource Plan, including the parties involved, recent Integrated Resource Plan results, affordability, cost-efficiency opportunities, and key assumptions.

4.2.1 DSM BASELINE STUDY E1 will work with the Nova Scotia Independent Energy System Operator (NSIESO) in pursuit of the NSIESO's duties to carry out integrated resource planning exercises as outlined in the More Access to Energy Act. [16]...

AI summary E1 will collaborate with the NSIESO to conduct integrated resource planning as required by the More Access to Energy Act, potentially including the commission of a DSM baseline study prior to each DSM Potential Study.

4.2.2 DSM POTENTIAL STUDY E1 will work with the NSIESO in pursuit of the NSIESO's duties to carry out integrated resource planning (IRP) exercises as outlined in the More Access to Energy Act. [17](#page-62-3) This may include the commissi...

AI summary E1 will collaborate with the NSIESO to conduct a DSM Potential study as part of integrated resource planning under the More Access to Energy Act. This study will identify achievable DSM resources and inform Candidate Resource Plans for the IRP.

4.2.3 INTEGRATED RESOURCE PLAN Integrated resource planning establishes directional information for DSM planning. E1 will work with the NSIESO in the pursuit of their duties to carry out IRP exercises. [18](#page-63-0) As outlined in the M...

AI summary The Integrated Resource Plan (IRP) establishes a framework for demand-side management (DSM) planning. E1 will collaborate with the NSIESO to fulfill IRP duties under the More Access to Energy Act. The NSIESO must work with the franchise holder to develop avoided cost calculations and conduct cost-effective DSM, and file IRP results with the Energy Board.

4.2.3.1 AVOIDED COSTS As outlined in the More Access to Energy Act , the NSIESO will work with the DSM franchise holder to develop avoided cost calculations for demand-side management resources as part 18 Ibid. of its IRP exercises (see se...

AI summary The More Access to Energy Act mandates the NSIESO to develop avoided cost calculations for demand-side management resources as part of its IRP exercises, which will transition from NS Power to the NSIESO starting April 1, 2025.

4.3 DSM RESOURCE PLAN DEVELOPMENT Integrated resource planning establishes directional information for DSM that will inform the development of a preferred DSM Resource Plan by E1, including analysis of alternate scenarios of DSM activity,...

AI summary The Integrated Resource Plan (IRP) provides directional guidance for Demand Side Management (DSM) to support the development of a preferred DSM Resource Plan by EfficiencyOne (E1), including the analysis of alternate DSM scenarios in line with the Standardized Filing Framework.

1. INTRODUCTION The modelling phase for the 2027-2031 Resource Plan defines the Demand Side Management (DSM) resources and scenarios that EfficiencyOne (E1) explores through modelling in preparation for its Plan application filing with the...

AI summary The modelling phase for the 2027-2031 Resource Plan by EfficiencyOne (E1) has been completed, with this report detailing the results, key assumptions, and insights from the Round 2 modelling exercise in preparation for the Plan application filing with the Nova Scotia Energy Board (NSEB).

Standardized Filing Framework 11 (2) Prior to, or as part of, conducting an integrated resource planning exercise and subsequent competitive procurements of energy resources, the [NS]IESO shall: - (a) work with the holder of the franchise...

AI summary The NSIESO is required to collaborate with franchise holders to develop avoided cost calculations for demand-side management resources under the Public Utilities Act and to file the results of its integrated resource planning (IRP) exercises with the Energy Board once completed.

4.2.2 DSM POTENTIAL STUDY E1 will work with the NSIESO in pursuit of the NSIESO's duties to carry out integrated resource planning (IRP) exercises as outlined in the More Access to Energy Act. [24](#page-145-3) This may include the commiss...

AI summary E1 will collaborate with the NSIESO to conduct a DSM Potential study as part of integrated resource planning exercises required under the More Access to Energy Act. This study will identify achievable DSM resources and inform Candidate Resource Plans for the IRP.

4.2.3 INTEGRATED RESOURCE PLAN Integrated resource planning establishes directional information for DSM planning. The Preferred Resource Plan identified in the IRP will inform the development of a preferred DSM Resource Plan by E1, includi...

AI summary The Integrated Resource Plan (IRP) establishes directional information for Demand Side Management (DSM) planning. E1 will develop a preferred DSM Resource Plan in collaboration with the NSIESO, in accordance with the Standardized Filing Framework and the More Access to Energy Act . The NSIESO is required to file the results of its IRP exercises with the Energy Board.

4.2.3.1 AVOIDED COSTS As outlined in the More Access to Energy Act , the NSIESO will work with the DSM franchise holder to develop avoided cost calculations for demand-side management resources as part of its IRP exercises (see section 4.2...

AI summary The More Access to Energy Act requires the NSIESO to collaborate with the DSM franchise holder to calculate avoided costs for demand-side management resources as part of IRP exercises. These calculations will be provided to E1 for use in the cost-effectiveness screening of DSM measures and programs during planning processes.

3.1 Glossary of Terms Term Definition Incremental net energy First full year of energy savings attributable to efficiency measures installed in that savings (First-year) year; net of free-ridership and spillover. Incremental net energy Ene...

AI summary The glossary defines key terms related to energy efficiency and resource planning, including incremental net energy savings, integrated resource plans, and cost-effectiveness screens. It outlines the roles of entities such as the Nova Scotia Energy Board and the Nova Scotia Independent Energy System Operator.

4.2.1 DSM Baseline Study E1 will work with the NSIESO on IRP activities,[6](#page-168-6) which may include commissioning a DSM baseline study in advance of each DSM Potential Study to identify current stocks of electricity consuming device...

AI summary E1 will collaborate with the NSIESO on IRP activities, potentially including commissioning a DSM baseline study prior to each DSM Potential Study to assess existing electricity-consuming devices across all market sectors.

4.2.2 DSM Potential Study E1 will work with the NSIESO on IRP activities, [6](#page-163-1) including the commission of a DSM Potential study in advance of each IRP exercise. The DSM Potential study identifies DSM resources that are achieva...

AI summary E1 will collaborate with the NSIESO on IRP activities, including conducting a DSM Potential study prior to each IRP exercise. This study will identify achievable DSM resources and inform the development of Candidate Resource Plans for the IRP.

4.2.3 Integrated Resource Plan Integrated resource planning establishes directional information for DSM planning. The Preferred Resource Plan identified in the IRP will inform the development of a preferred DSM Resource Plan by E1, includi...

AI summary The Integrated Resource Plan (IRP) provides directional guidance for Demand Side Management (DSM) planning. The Preferred Resource Plan from the IRP will be used by EfficiencyOne (E1) to develop a preferred DSM Resource Plan, including analysis of alternate DSM scenarios in line with the Framework.

5. CONSOLIDATED ENDNOTES AND SOURCES - 1. M06733 – E1 2016-2018 DSM Resource Plan. NSUARB Order (October 7, 2015) approving the Plan, the Consensus Agreement establishing the Standardized Filing Framework; Performance Targets, Indicators,...

AI summary This section lists consolidated endnotes and sources from a regulatory proceeding, including matters related to Demand Side Management (DSM) plans, standardized filing frameworks, and the establishment of the Nova Scotia Independent Energy System Operator (NSIESO) under the Energy Reform (2024) Act.

18 Table 1: 2023-2026 DSM Plan Energy Savings, Demand Savings and Available Capacity Compared to 2022 19 Evergreen Integrated Resource Plan (IRP) Plan as Approved 2022 Evergreen IRP Reference Plan Variance Between Plan as Approved and 2022...

AI summary The table compares the 2023-2026 DSM Plan energy and demand savings with the 2022 Evergreen IRP Reference Plan, showing variances in energy savings, peak demand savings, and available capacity across the years.

3 Table 2: 2027-2031 Preferred DSM Plan Energy Savings, Demand Savings and Available Capacity Compared 4 to 2022 Evergreen Integrated Resource Plan (IRP) Plan as Proposed 2022 Evergreen IRP Reference Plan IRP Reference Plan Year Energy Sav...

AI summary Table 2 compares the 2027-2031 Preferred DSM Plan's energy savings, demand savings, and available capacity with the 2022 Evergreen Integrated Resource Plan (IRP). The data shows a decrease in energy and demand savings compared to the 2022 plan, with solar-PV installed capacity remaining low in the proposed plan.

The IRP Reference Scenario that avoided costs of DSM were developed from (CE1-E1-R2) has 203 MW of solar by 2031. The high DER IRP scenario (included higher levels of customer sited solar) which had favorable Revenue Requirement results wh...

AI summary The document discusses the Integrated Resource Plan (IRP) and the 2027–2031 DSM Plan, noting that the DSM Plan is consistent with the IRP despite achieving a significant portion of its energy savings. The IRP includes a reference scenario with 203 MW of solar by 2031 and a high DER scenario with favorable revenue results when customer costs are excluded.

epend on several factors, including the type of resources selected and their contribution to firm capacity. In addition to the capacity shortfall, there will also be an energy gap of 248 GWh in 2031, with a cumulative total of 627 GWh over...

AI summary The text discusses the capacity shortfall and energy gap in 2031, and references a request for information regarding E1's anticipated updates to the Integrated Resource Plan (IRP) and avoided costs between 2027 and 2031, particularly in relation to the More Access to Energy Act and the Nova Scotia Independent Energy System Operator (NSIESO).

M Planning? (c) Does E1 anticipate updating the avoided costs in its 2027-2031 DSM Plan as a result of the updated avoided costs from NSIESO? If so, when would E1 make these updates? Response IR-11: (a) The development of Integrated Resour...

AI summary EfficiencyOne (E1) states that the development of Integrated Resource Plans (IRP) is now managed by the Nova Scotia Independent Energy System Operator (NSIESO). E1 anticipates that updated avoided costs for energy and capacity will be developed after the completion of the NSIESO's 2026 IRP, with finalization expected in 2027.

n following the completion of the NSIESO's 2026 IRP. Based on the current NSIESO timeline for the 2026 IRP, E1 does not anticipate updated avoided costs to be finalized for use until sometime in 2027. (c) No, E1 does not anticipate updatin...

AI summary E1 does not anticipate updating the avoided costs used in its proposed 2027–2031 DSM Plan Application and re-filing its submission, even though the NSIESO's 2026 IRP is expected to finalize updated avoided costs in 2027. Changes in IRP updates have historically not led to E1 applying for modifications to the approved DSM Plan.

R-12 Page 2 of 2 M12282, NSEB Decision, E1's Application for approval of a New Benefit-Cost Analysis Test for Evaluating Demand Side Management Plans, December 10, 2025. Request IR-13: Page 17 of the Evidence states, "E1 further notes that...

AI summary E1 has not received long-run marginal emissions rates from NS Power despite requests in 2025 and 2026, but expects the information to be developed by NSIESO. E1 does not anticipate updating the 2027–2031 DSM Plan even after receiving this information, as the current plan was developed using the best available data from NS Power's IRP and revisions may impose a regulatory burden.

1 • combination of heat Energy Storage Solutions and Electric Space Heating 2 pumps and battery energy storage or electric thermal storage solutions. 3 • Hybrid Heating Load Management automation and direct-load control of 4 hybrid heating...

AI summary The text discusses E1's approach to the 2027–2031 DSM Plan, including hybrid heating load management, collaboration with NSIESO, and exclusion of Strategic Electrification due to legislative requirements not being met. E1 notes uncertainty about future results and confirms that past measures did not achieve both GHG emission and electricity cost reductions.

INTRODUCTION AND STRATEGIC OVERVIEW NSPI is a vertically integrated regulated electric utility. It is the primary electricity supplier in Nova Scotia, Canada. NSPI has $8.1 billion of assets and provides electricity generation, transmissio...

AI summary NSPI, a vertically integrated regulated electric utility in Nova Scotia, provides electricity to over 565,000 customers and has significant generating and transmission infrastructure. It owns 2,422 MW of generating capacity, including renewable sources, and has invested in grid-scale battery storage. NSPI has diversified its energy mix and reduced reliance on solid fuels.

Wasoqonatl Transmission Line: On March 5, 2025, NSPI, the Canada Infrastructure Bank ("CIB") and the Wskijinu'k Mtmo'taqnuow Agency ("WMA") announced the Wasoqonatl transmission line project which will create a reliability intertie between...

AI summary The Wasoqonatl transmission line project, owned by WTI, a new regulated utility, aims to create a reliability intertie between Nova Scotia and New Brunswick. NSPI, with a 50% indirect voting interest, provides services to WTI. The NSEB approved a $685 million capital investment for the project, including AFUDC.

Nova Scotia Energy Reform Act: On April 5, 2024, the Province enacted Bill 404 - Energy Reform (2024) Act. This legislation implements certain recommendations made by the Clean Electricity Solutions Task Force, which was established by the...

AI summary Bill 404 - Energy Reform (2024) Act was enacted on April 5, 2024, implementing recommendations from the Clean Electricity Solutions Task Force. It established the NSEB and the More Access to Energy Act, which sets up the IESO Nova Scotia. The IESO Nova Scotia began its phased transition in October 2025, with the first phase completed in December 2025.

The forward-looking information is based on reasonable assumptions and is subject to risks, uncertainties and other factors that could cause actual results to differ materially from historical results or results anticipated by the forward-...

AI summary The forward-looking information provided is based on reasonable assumptions and is subject to various risks and uncertainties that may affect actual results, including regulatory, economic, operational, and environmental factors, as well as changes in technology, customer behavior, and global conditions.

levant to this situation under which E1 would file a plan amendment. Response IR-26: (a) Please refer to EfficiencyOne's (E1) response to Synapse IR-72 for details on the mid-term check in process. (b) Historically, updated avoided costs a...

AI summary EfficiencyOne (E1) explains that the mid-term check process for the DSM Plan is detailed in their response to Synapse IR-72. Historically, NS Power developed updated avoided costs through IRP activities, but this responsibility will now shift to NSIESO. These avoided costs are shared with the DSMAG during DSM Plan development and do not affect investment levels or performance targets for the 2027–2031 DSM Plan.

DATE FILED: May 28, 2026 E1 (Synapse) IR-52 Page 2 of 2 1 Request IR-53: 2 3 Page 76 of Appendix A – Preferred Plan states, "The level of available demand response 4 capacity proposed for 2027–2031 remains within, not exceeding, the optima...

AI summary The document includes a request for information regarding the optimal level of demand response capacity identified in NS Power's 2022 Integrated Resource Plan (IRP) and how the proposed capacity in the Preferred Plan remains within that level. The response refers to prior responses provided by EfficiencyOne (E1) to Synapse IR-10.

(g) recommended changes to respond to implementation challenges or opportunities; (h) the potential for additions and/or terminations of programs; and (i) the potential for a plan amendment and the cause(s), including but not limited to: s...

AI summary The response to Request IR-72 outlines E1's proposed mid-term check-in process for the DSM Plan, including stakeholder engagement, updates on demand response coordination with NS Power, and work with the NSIESO on IRPs and avoided costs. A mid-term session with the DSMAG is planned for the first quarter of 2029.

• Would an amendment to the DSM Plan be in the best interest of ratepayers? Consistent with a DSM Plan application, E1 would expect any amendment would require fulsome DSMAG member engagement prior to E1 filing an application seeking NSEB...

AI summary The document discusses potential amendments to the DSM Plan, emphasizing the need for engagement with the DSMAG and regulatory approval by the NSEB. It also considers the achievability of the plan and whether changes in the IRP would necessitate an amendment, noting that past changes in IRP outcomes have not automatically triggered amendments.

es - including updated avoided costs or revised resource adequacy findings – have not automatically triggered amendments to a DSM Plan in the past. E1 does additional regulatory burden unnecessarily. acknowledge that materially different a...

AI summary E1 acknowledges that changes in avoided costs or resource adequacy findings from a new IRP may be important but suggests that these should be evaluated on a case-by-case basis to determine if they warrant a DSM Plan amendment. E1 retains discretion in deciding whether to propose amendments and does not have a predefined threshold for what constitutes a material change.

volution - analysis. Outside of the annual program evaluations, it is anticipated that E1 may conduct a DSM - Potential Study during the 2027–2031 period subsequent to the 2026 Potential Study that is - 1 being conducted to inform the Nova...

AI summary E1 is planning a Potential Study during the 2027–2031 period to support the NSIESO's inaugural Integrated Resource Plan. Responses to requests regarding DSM performance targets and financial estimates refer to other documents and schedules within the Purchase Agreement.

6. Load Research Evaluation Framework This framework differs from resource acquisition in its method. Rather than using an experimental or quasi-experimental design reliant on a comparison group, it uses high-frequency utility meter data t...

AI summary The Load Research Evaluation Framework uses high-frequency utility meter data to estimate load impacts directly at the customer level, avoiding ex ante deemed savings or engineering estimates. It enables spatial and temporal disaggregation of results, supporting system planning and infrastructure development.

15 Q. WHY WOULD AN ANNUALLY APPLIED RATE-CLASS COLLAR BE 16 UNWORKABLE? 17 A. Rate-class spending can vary more than 15% from year to year. In the 2016–2024 data E1 18 filed as Attachment 1 to CA IR-15, single-year variances against plan i...

AI summary An annually applied rate-class collar would be unworkable due to significant year-to-year spending variations and the risk of creating a growing gap between savings and economically optimal levels. This could lead to frequent MCA filings and undermine the purpose of five-year planning cycles.

11 Q. BESIDES THE PROPOSED THRESHOLDS, WHAT DO YOU THINK SHOULD 12 TRIGGER AN MCA? 13 A. The Preferred Plan deliberately acquires only 64% of the IRP-identified DSM savings, which E1 characterizes as maintaining a "trajectory" toward IRP l...

AI summary The response discusses the need for an MCA (Measure Cost Allocation) when there is a material change in optimal DSM (Demand Side Management) resource acquisition levels identified in the Evergreen IRP process, specifically if cumulative DSM savings levels differ by more than 20% from currently approved levels. It highlights concerns about deferring cost-effective DSM and the potential for higher-cost supply acquisition.

- 8 Update the SPP to include an MCA filing trigger to address updated IRP 9 projections. Any findings from the Evergreen IRP process that identify 10 optimal DSM resource acquisition levels that are more than 20% away from 11 the existing...

AI summary The text discusses updating the SPP to include an MCA filing trigger based on updated IRP projections and consolidating low-income program components into a single 'Low Income Program' subject to the MCA threshold. This aims to ensure proper monitoring and address significant underinvestment.

5 Q. WHAT GUIDANCE DOES THE SFF PROVIDE REGARDING SAVINGS 6 TARGETS? 7 A. The SFF directs E1 to provide a Preferred Plan that is informed by the level of DSM 8 savings identified in NS Power's Integrated Resource Plan ("IRP"). The current...

AI summary The SFF requires E1 to provide a Preferred Plan based on energy efficiency savings outlined in NS Power's 2022 Evergreen IRP, which includes 683.1 GWh of energy savings and 123.9 MW of demand savings over 2027–2031, plus 44.3 MW of demand response capacity.

11 Q. WHY IS IT IMPORTANT THAT THE 2020 IRP SELECTED THE "BASE 12 PROFILE" LEVEL OF SAVINGS? 13 A. It is important because the IRP chose that level on economic grounds. The IRP found that 14 DSM energy-efficiency programs in the range of t...

AI summary The 2020 Integrated Resource Plan (IRP) selected the 'Base Profile' level of savings for Demand Side Management (DSM) energy-efficiency programs because it was found to be the most economic option relative to other alternatives evaluated under the IRP's primary metric of 25-year cost-effectiveness.

1 NPV of Revenue Requirement (with end effects)."24 The 2020 IRP describes one of its 2 purposes as determining "the most economic range of DSM programs to be pursued in 3 future DSM procurement processes."25 The Base level is therefore no...

AI summary The 2020 Integrated Resource Plan (IRP) aims to determine the most economic range of DSM programs for future procurement. The Base level is described as the least-cost option for ratepayers over the long term. The 2019 Potential Study, though outdated, is still considered usable for the 2027-2031 DSM Plan, but updates are needed. NSP has updated its forecasts, showing projected peak load growth of 1.1% annually over the next decade.

1 Q. IS IT POSSIBLE TO GET DSM INVESTMENTS BACK ON THE 2 ECONOMICALLY OPTIMAL PATH AFTER THE CURRENTLY PROPOSED 3 PLAN TERM? 4 A. As we just discussed, and E1 acknowledges in their response to Synapse IR-10(g), the 5 Preferred Scenario res...

AI summary The response indicates that getting DSM investments back on an economically optimal path after the current plan term may be challenging due to the large gap between the Preferred Scenario and the IRP trajectory. Energy efficiency programs require time to develop, and significant reductions in savings goals could lead to market disruptions and reduced program effectiveness.

15 Q. DID E1 EVER EXAMINE A SCENARIO THAT MEETS THE IRP TARGETS AS 16 PART OF THEIR PLANNING PROCESS? 17 A. Yes. As part of the plan development process, E1 modeled a full IRP-aligned energy 18 efficiency scenario at 683.1 GWh and 123.9 MW...

AI summary E1 examined a scenario that meets the Integrated Resource Plan (IRP) targets as part of their planning process. The scenario included 683.1 GWh and 123.9 MW of peak demand savings, with a total investment of $464 million and net benefits of approximately $600 million under the PAC test.

1 Q. WHAT JUSTIFICATION DOES E1 OFFER FOR RECOMMENDING A 2 PREFERRED PLAN BELOW THE IRP-IDENTIFIED LEVEL? 3 A. E1's justification rests entirely on short-term affordability. E1 states that it held 4 investment at 2026 levels because near-t...

AI summary E1 justifies recommending a preferred plan below the IRP-identified level based on short-term affordability, acknowledging that this results in lower long-term energy savings. The argument is criticized for ignoring significant economic benefits of the IRP scenario and relying on a limited view of affordability.

11 Q. WHY DO YOU FEEL THAT E1'S PREFERRED SCENARIO IS AT ODDS WITH 12 ECONOMIC PRINCIPLES? 13 A. The economics clearly favor more DSM, not less. From a planning perspective, the IRP found the Base profile most economic. 32 14 E1's analysis...

AI summary The response argues that E1's preferred scenario is not aligned with economic principles because it underutilizes demand-side management (DSM), which is identified as a least-cost resource. The Integrated Resource Plan (IRP) found that the Base profile is more economic, and underutilizing DSM increases long-term costs for ratepayers.

3 Q. WHAT DO YOU RECOMMEND REGARDING E1'S SAVINGS TARGETS? 4 A. I respectfully recommend that the Board treat the IRP-identified Base level as the 5 minimum planning target until an updated potential study is available, consistent with 6 e...

AI summary The respondent recommends that the Board treat the IRP-identified Base level as the minimum planning target for E1's savings until an updated potential study is available, and that E1 use an overall savings target aligned with the IRP-identified Base DSM level of approximately 683 GWh for 2027–2031, rather than the 435.4 GWh Preferred Plan.

5 Q. DID E1 PERFORM ANY RATE AND BILL ANALYSIS OF THE IRP 6 SCENARIO? 7 A. Yes. E1 provided the IRP scenario RBIA as Attachment 2 – Appendix K, Scenario 3 in 8 its response to Synapse IR-02. Similar to the Preferred Scenario, both particip...

AI summary E1 conducted a rate and bill impact analysis (RBIA) for the Integrated Resource Plan (IRP) scenario, showing bill reductions for participants and minimal impacts on non-participants. The analysis assumes a counterfactual of no demand-side management (DSM) and compares the preferred scenario to a baseline with continued DSM.

Table 2. Change in Non-Participant Bills for IRP compared to E1 Preferred Plan 18 [48](#page-25-0) Rate Class 27-46 Avg Residential 0.46% Small General 0.66% General 0.66% Large General 0.37% Small Industrial 0.62% [ 48 ](#page-25-1) See E...

AI summary Table 2 shows the change in non-participant bills for the Integrated Resource Plan (IRP) compared to the E1 Preferred Plan across different rate classes, with percentages ranging from 0.08% to 0.66%. The IRP scenario excludes the effects of strategic electrification.

2 If we limit the bill impacts to the 2027 to 2031 program years, the IRP scenario would 3 represent an average increase in non-participant bills of between 1.17% to 3.09% 4 depending on rate class, as shown in the following table

AI summary The text discusses the potential increase in non-participant bills from 2027 to 2031 under the Integrated Resource Plan (IRP) scenario, with average increases ranging from 1.17% to 3.09% depending on the rate class.

15 Q. DO YOU SUPPORT THE PROPOSED BNI DEMAND RESPONSE (SMART 16 SYNERGY) COMPONENT? 17 A. Yes. Smart Synergy is cost-effective, delivers dispatchable winter peak capacity that the 18 IRP identifies as an increasingly valuable system resour...

AI summary The respondent supports the proposed BNI Demand Response (Smart Synergy) component, citing its cost-effectiveness, ability to provide dispatchable winter peak capacity, and benefits to ratepayers by deferring more expensive firm supply capacity.

Affordability of E1's Preferred Plan _________ We understand that E1's Preferred Plan proposes to hold investment at the approved 2026 level of $63.75 million per year, with no annual inflation increases, for a total of $318.75 million ove...

AI summary E1's Preferred Plan proposes maintaining a $63.75 million annual investment in DSM from 2027–2031, totaling $318.75 million, as an affordability measure. NS Power advocates for an inflation-adjusted budget based on 2023–2026 figures, shifting funds toward DR and SE. Both plans result in similar total investments over the period.

Representation of Strategic Electrification in E1's Preferred Plan SE is now expressly recognized within Nova Scotia's statutory DSM framework. The Public Utilities Act, which was amended in 2022, defines DSM to include "strategic electrif...

AI summary Strategic electrification (SE) is now part of Nova Scotia's statutory DSM framework, as amended by the Public Utilities Act in 2022. SE must reduce both greenhouse-gas emissions and electricity costs for customers to be approved. E1's DSM application includes SE to align with Nova Scotia's climate and energy goals, as highlighted in NS Power's 2022 Evergreen IRP and the Clean Power Plan.

Q. How do E1's expected energy and capacity savings for its Preferred Plan compare to what is assumed in the latest IRP? - A. [Table 1](#page-13-0) below provides a comparison of the energy and capacity from E1's DSM reports and plans to N...

AI summary E1's Preferred Plan is expected to result in significantly lower energy and capacity savings compared to the assumptions in the 2022 IRP. By 2031, energy savings will be 215 GWh less, peak demand savings will be 9 MW less, and combined capacity from demand response and solar-PV will exceed IRP assumptions by 6.0 MW and 6.1 MW respectively.

1 Table 1. Comparison of Energy and Capacity from E1 DSM Efforts to NS Power's IRP E1 DSM Reports/Plans NS Power Reports/Plans DER NS Power 2022 Evergreen IRP E1 + NS Power - IRP Year EE Energy Savings (GWh) EE Peak Demand Savings (MW) DR...

AI summary This table compares energy and capacity savings from E1's Demand-Side Management (DSM) efforts with NS Power's Integrated Resource Plan (IRP), highlighting discrepancies in energy savings, peak demand reduction, and solar PV installed capacity across different years and planning scenarios.

Evidence of Alice Napoleon Page 14 2 • 2027-2031 Proposed: E1 2027-2031 DSM Plan, Appendix A: Preferred Plan, Tables 9-13. 3 • Solar-PV installed capacity from E1's response to Synapse IR-10 (c) 4 NS Power DER Reports/Plans: 5 • DR: NSPI 2...

AI summary This document references E1's 2027-2031 DSM Plan, Solar-PV installed capacity data, and NS Power DER Reports/Plans, including the 2026 Load Forecast Report and the 2022 Evergreen IRP. It outlines how E1 integrates NS Power DER Reports/Plans into its DSM Reports/Plans while subtracting the 2022 Evergreen IRP from the total.

d, M. Chang., R. Broderick, R. Jeffers, K. Jones, M. DeMenno. 2021. The Resilience Planning Landscape for Communities and Electric Utilities. Synapse Energy Economics for Sandia National Laboratories. Napoleon, A., E. Camp, S. Letendre, E....

AI summary The text lists various publications and reports authored or commissioned by Synapse Energy Economics and other organizations, focusing on topics such as energy infrastructure, utility regulation, and decarbonization strategies. These works were prepared for regulatory bodies and advocacy groups in multiple jurisdictions.

GR10030225): Direct testimony of David Nichols regarding New Jersey Natural Gas Company's Proposed Energy Efficiency Program. On behalf of New Jersey Division of the Ratepayer Advocate. July 9, 2010. Virginia State Corporation Commission (...

AI summary The text outlines various testimonies and expert reports provided by individuals on behalf of regulatory bodies and advocacy organizations in multiple states, focusing on energy efficiency programs, integrated resource planning, and competitive procurement processes.

f Wisconsin Power and Light Company Application for Authority to Adjust Electric and Natural Gas Rates for 2024 and 2025 Test Years, on behalf of Wisconsin Power and Light Company, September 26, 2023. Surrebuttal Testimony pre-filed before...

AI summary The text outlines various regulatory filings and testimonies related to rate adjustments and grid planning by utility companies in Wisconsin, Massachusetts, and New Jersey. It includes surrebuttal and rebuttal testimonies, as well as reports on load forecasting and modernization plans.

GRID MODERNIZATION - Analyzed the impacts of electric utility infrastructure investment on system reliability and resiliency for a Northeastern Utility, following major weather events. Primary area of analysis involved estimation of econom...

AI summary This text outlines various grid modernization projects and analyses, including the economic value of infrastructure investments, cost recovery mechanisms, and impact evaluations. It includes work with utilities, advisory groups, and studies on energy efficiency programs.

- Conducted a study involving "solar to solar" comparison of equal amounts of residential- and utility-scale PV solar deployed in Xcel Energy Colorado's Service Area. Calculated costs and benefits of each of these two different but equally...

AI summary The text discusses various studies and advisory roles related to energy efficiency, utility-scale solar deployment, and integrated resource planning. It highlights the comparison of residential and utility-scale solar, the modeling of energy efficiency impacts, and the development of models to assess the prudence of power procurement strategies.

. The focus of these modeling efforts was to help utilities anticipate and accommodate distributed energy resources (DERs) as they become more economical and more Sanem Sergici brattle.com 16 of 28 - widely adapted by retail electricity cu...

AI summary This text discusses modeling efforts to incorporate distributed energy resources (DERs) into integrated resource planning, including the use of Brattle's GridSIM model. It also covers studies on energy efficiency, demand response, and the impact of electric vehicles and rooftop solar. The analysis includes estimating net energy metering (NEM) cross-subsidies using cost-of-service methodologies.

DEMAND FORECASTING - For a large energy company, Brattle experts evaluated the drivers of load growth in the ERCOT and PJM region. The study focused on the energy and peak impacts of demand for electricity from data centers and cryptocurre...

AI summary The text discusses demand forecasting activities conducted by Brattle for various utilities and regions, including ERCOT, PJM, and National Grid Massachusetts. It covers the evaluation of load growth drivers, spatial load forecasting methodologies, and the impact of demand-side resources and uncertainty factors on load forecasts.

- measures. This involved comparing cost information provided by utilities for a portfolio of programs against the sum total of benefits that the programs would offer to society to study their cost effectiveness. - Electric Vehicle Demand...

AI summary The text outlines various consulting activities involving cost-effectiveness analysis of energy programs, electric vehicle demand estimation, time-varying rate design pilots, forecasting methodology reviews, and rate design for large load customers. These efforts support integrated resource planning and utility operations.

3 Reference: Evidence of Green Energy Economics Group page 9, lines 7–8: 4 5 "The SFF directs E1 to provide a Preferred Plan that is informed by the level of DSM savings 6 identified in NS Power's Integrated Resource Plan ("IRP")." 7 8 (a)...

AI summary The text references the Standardized Filing Framework (SFF) and asks about its requirements regarding the Integrated Resource Plan (IRP) and the development of a preferred DSM Resource Plan by E1.

16 Response IR-01: 17 18 (a) The reference is to Section 4.2.3, "Integrated Resource Plan," of E1's Proposed Updated 19 Standardized Filing Framework, filed as Appendix F to the Application (Appendix F, p. 7). That 20 section provides: 21...

AI summary The response discusses the Integrated Resource Plan (IRP) and its role in shaping the Demand Side Management (DSM) Resource Plan, emphasizing that the IRP provides directional input rather than prescriptive guidance. The response also raises concerns about the balance between short-term affordability and long-term energy savings. A separate request addresses pre-weatherization barriers and their impact on energy savings and cost-effectiveness.

32 Response IR-02: 33 34 (a) 35 (i) An "optimal DSM resource acquisition level" is the level of DSM identified as 36 economically optimal in a least-cost resource planning exercise. It is important that the DSM 37 scenarios are used as an...

AI summary The response discusses the concept of an 'optimal DSM resource acquisition level' as determined through least-cost resource planning. It contrasts this with the IESO-NS 2026 System Outlook, which uses a single pre-selected scenario and does not optimize DSM levels. A 20% deviation from the IRP-identified optimal level is proposed as a trigger for plan adjustments.

7 8 Finally, it is worth noting that energy efficiency enters only as a reduction within the NS 9 Power load forecast in the 2025 Outlook and the IESO NS 2026 Outlook. The Outlook does not 10 identify the least-cost level of DSM; it simply...

AI summary The document discusses the underestimation of energy efficiency in load forecasts and the reliance on supply-side resources. It highlights the importance of determining the optimal level of demand-side management (DSM) through the Integrated Resource Plan (IRP) process rather than using the Preferred Plan level. The 2026 Outlook emphasizes the need for new firm capacity resources and the challenges in meeting decarbonization targets.

17 Request IR-04: 18 19 Reference: E-21, Page 25–26, lines 13–14 and 1–4. 20 "As described previously in my testimony, peak capacity needs are projected to grow, and current forecasts require more investment in DSM than the E1 Preferred Pl...

AI summary The text discusses concerns regarding the need for increased investment in Demand Side Management (DSM) due to projected peak capacity needs and the retirement schedule of NSPI's generation assets. It highlights the potential for higher-cost supply-side resources to be required if DSM investment falls below the Integrated Resource Plan (IRP) level.

36 Request IR-05: 37 38 Reference: E-21, Page 17, lines 4-9. 39 I respectfully recommend that the Board treat the IRP-identified Base level as the minimum planning target until an updated potential study is available, consistent with energ...

AI summary The text presents a request to the Board regarding the Energy Efficiency Program (E1) and the Integrated Resource Plan (IRP)-aligned scenario. It questions the feasibility and implementation of increasing the DSM savings target from 435.4 GWh to 683 GWh for 2027–2031, including cost, capacity, and program deployment considerations.

33 Response IR-05: 34 35 (a) i) Confirmed, ii) Confirmed, iii) Confirmed 36 37 (b) GEEG has not independently done that analysis. However, the purpose of a potential study 38 is to identify what is achievable and the past potential study i...

AI summary The response confirms certain points and discusses energy efficiency program savings, referencing past studies and comparing them to other regions. It notes that savings of around 1.1% of sales are achievable and aligns with North American benchmarks. The E1 model has been used to allocate funding between rate classes and programs, while GEEG has not conducted further analysis.

11 "… However, customers are already paying a DCRR, and even the IRP level of DSM 12 spending barely impacts the DCRR that customers are already paying." 13 14 (a) Please quantify the assertion that the increase in investment "barely impac...

AI summary The text discusses concerns about the impact of the Integrated Resource Plan (IRP)-aligned scenario on the DCRR, asking for quantification of the claim that increased investment barely affects DCRR. It requests detailed breakdowns by customer class and explanations of assumptions and calculations.

28 Response IR-06: 29 30 (a) The sentence should be corrected to state that the IRP level of DSM spending barely 31 impacts the "bills" customers are already paying. Please refer to Exhibit TML-2 which shows the 32 conclusion is expressed...

AI summary The response clarifies that the impact of moving from the Preferred Plan to the IRP-aligned scenario on non-participant bills is minimal, with increases ranging from 0.08% to 0.66% over the full analysis period (2027–2046), and up to 3.09% in the General class during 2027–2031. The impact is presented per rate class and does not depend on averaging across classes.

6 Request IR-07: 7 Preamble: At pages 24–25 of Mr. Love's evidence (Tables 2 and 3), he presents the change in non-participant bills for the IRP-aligned scenario compared to E1's Preferred Plan. For the plan years 2027–2031, he shows incre...

AI summary The document requests clarification on the incremental DCRR cost for Large and Medium Industrial classes under the IRP-aligned scenario compared to the Preferred Plan, and whether the bill-impact analysis uses the Preferred Plan or a no-DSM counterfactual as the baseline.

26 Response IR-07: 27 28 (a) GEEG has not calculated the DCRR value. The percentages in Tables 2 and 3 are bill-29 impact percentages, not absolute-dollar DCRR charges. 30 31 (b) The percentage increases in Tables 2 and 3 represent the inc...

AI summary GEEG has not calculated the DCRR value, noting that the percentages in the tables represent bill impact percentages rather than absolute DCRR charges. The percentage increases reflect the incremental cost of the IRP scenario over the Preferred Plan.

e are the same categories of 8 cost-containment recommended for E1 in Evidence, and they are the reason the recommendation 9 is to redesign programming, not at spending more on the current design. 10 11 (f) As discussed in section g), the...

AI summary The text discusses the need to redesign the Energy Efficiency Program (E1) to reduce unit costs through recalibration of incentives and program models, while emphasizing that energy efficiency remains the least-cost resource. It highlights that cost-effective energy efficiency passes the PAC test and yields higher net benefits at the IRP level.

, automated participation, device-partner enrollment channels, customer comfort protections, and repeated event-season learning – are equally applicable to DR programs in winter peaking jurisdictions. (c) Brattle has not conducted a load f...

AI summary The text discusses the potential for Demand Response (DR) programs in Nova Scotia, comparing E1's proposed residential DR participation levels with projected heat pump installations. It highlights a discrepancy suggesting significant potential for increasing DR penetration among residential customers.

by The Brattle Group. (a) A well-designed DR potential study helps identify which resources can provide dependable capacity, how much verified load reduction can reasonably be expected, how quickly programs can scale, what customer segment...

AI summary The Brattle Group emphasizes the importance of a well-designed DR potential study in identifying reliable capacity, scaling programs, and setting performance metrics. It notes that E1 is conducting an updated DSM potential study for the 2027-2031 timeframe, which will inform IESO-NS' IRP and DSM plan for 2032-2036. However, specific cost allocation considerations for DR studies remain unclear.

esign programs, set MW targets, establish incentive levels, determine customer-segment priorities, and allocate budgets; and - 4. Incorporate performance and accreditation metrics into the DSM filing. For E1, that means a DR potential stud...

AI summary The text discusses the need for Demand Side Management (DSM) potential studies to inform Integrated Resource Plans (IRP) and DSM planning, with a focus on residential demand response, BNI curtailment, and controllable-load strategies. It suggests using study results for mid-cycle updates and reallocation of DSM funding if system capacity conditions are tightening.

Request IR-02: 1 Reference: Napoleon Evidence, page 27–29 (Low and Moderate Income [LMI] Oil-Heat 1 • Nova Scotia has one primary test, and New Brunswick has four primary tests. New 2 Brunswick's All Fuels tests include consideration of th...

AI summary The text discusses differences in fuel-cost-adjustment mechanisms between Nova Scotia and New Brunswick, highlighting NB Power's reporting on LMI oil-heat electrification and its status as a crown corporation. It also requests clarification on whether the NS Power 2022 Evergreen IRP available capacity includes Time-Varying Pricing (TVP) rates.

Summary Recommendations I recommend that the Board: - approve the energy-efficiency-related budgets and savings proposed by NB Power for the 2024/25 and 2025/26 program years. - o Direct NB Power to provide updates when the Energy Efficien...

AI summary The Board is recommended to approve NB Power's energy-efficiency and electrification budgets, request revisions to the DSM plan, and conduct reviews on renewable energy and demand response programs. The Province is also urged to align electricity savings requirements with updated targets and include additional program types in future planning.

Sources: - NBP02.61 2024_25 to 2026_27 DSM Initiatives Update Table 4: 2024/25 EE-DR Cost-Effectiveness Analysis: Program Administrator Cost Test – All Fuels, page 10. - NBP02.61 2024_25 to 2026_27 DSM Initiatives Update Table 5: 2024/25 E...

AI summary The analysis discusses the cost-effectiveness of NB Power's DSM programs, highlighting that the Total Home Energy Savings Program is not cost-effective from the participant perspective. NB Power does not screen measures for cost-effectiveness and has not updated its avoided transmission and distribution capacity costs to align with the 2023 Integrated Resource Plan.

a review of performance and incentives after the 2023/24 program year is complete to determine if changes to the incentive are warranted, and direct NB Power to propose a pilot program for Residential customers based upon an assessment of...

AI summary The document recommends reviewing NB Power's DSM program performance and incentives post-2023/24, proposing a residential demand response pilot, and aligning near-term demand response plans with the IRP. It also calls for using AMI data to improve DSM programs and better coordination with the Peak Rebate Program. Additionally, the Province is urged to update electricity savings requirements and consider new targets for demand response, renewables, and electrification.

(e) Where an updated IRP is currently underway by IESO-NS, please explain how Synapse proposes that any changes to the IRP's DSM savings assumptions during the 2027–2031 Plan period should be addressed, including whether those changes woul...

AI summary The response discusses the Integrated Resource Plan (IRP) and Demand Side Management (DSM) savings assumptions, noting that the IRP's DSM savings are not binding targets. The response highlights concerns about potential gaps in energy efficiency savings and mentions that no Rate and Bill Impact Analysis (RBIA) was conducted for closing these gaps. It also notes the absence of NS Power-administered energy efficiency programs.

93 of 105). If this IR is asking M12780 - In the Matter of EfficiencyOne's (E1) 2027–2031 Demand Side Management (DSM) Resource Plan Application 1 about DR, please see Synapse's response to E1 IR-3. (e) I do not propose specific gap thresh...

AI summary The document discusses the possibility of a mid-course adjustment in the Demand Side Management (DSM) Resource Plan if the Integrated Resource Plan (IRP) calls for a greater share of DSM savings than previously outlined. The applicant does not propose specific gap thresholds but suggests considering cost-effective ways to address any gaps.

Electrification & Integrated Planning Strategic electrification, heat pump programs, IEP, NPAs, climate compliance planning, and alignment of EE with grid/system planning needs.

AI summary The text discusses strategic electrification, heat pump programs, integrated energy planning, climate compliance planning, and the alignment of energy efficiency with grid and system planning needs.

Q. Does Apex believe that the 2027-2031 DSM Plan savings goals are reasonable? A. In our opinion, E1's 2027-2031 goals seem reasonable and appropriate given the mature nature of the programs and the emphasis in this Plan on near-term affor...

AI summary Apex considers E1's 2027-2031 DSM Plan savings goals reasonable, particularly due to their focus on affordability and alignment with similar jurisdictions. The goals are lower than the IRP Base Scenario but consistent with comparable regions. Apex notes that market conditions and costs have changed since the last IRP, and the Consumer Price Index has increased significantly, impacting the economic context.

cotians. It is about helping households manage rising energy costs, helping businesses remain competitive, and helping our province make steady progress toward a cleaner, more resilient energy future. E1's evidence has addressed five centr...

AI summary EfficiencyOne's opening statement outlines a plan focused on managing energy costs, supporting business competitiveness, and advancing a cleaner energy future. The plan maintains flat investment at the 2026 approved level of $63.75 million annually, addressing affordability pressures while delivering long-term energy savings. The statement emphasizes collaboration and responsiveness to changing circumstances.

2. Mid-Term Check-In - (a) Changes. The Mid-Term Check-In, as set out in E1's Application and in E1's IR-72 to Synapse, will be initiated by two triggers, each of which will give rise to a Mid-Plan Check-In: - (i) Events-based trigger. Eve...

AI summary The Mid-Term Check-In process is initiated by either an events-based trigger, such as changes in legislation or updated studies, or a calendar-based trigger at the midpoint of the Plan (Q1 2029).

- 1 The concern has been moderated, in part, by the Board's approval in NSPI's General Rate - 2 Application, Matter M12451, 2026 NSEB 8, to align the DSM Plan adjustment recovery period - 3 with the accrual period, thereby smoothing out cu...

AI summary The document discusses adjustments to the DSM Plan, including alignment of the adjustment recovery period with the accrual period, and proposed changes to the MCA process. It also highlights concerns regarding the clarity of mid-term check-ins and several issues requiring further examination, such as cost-effectiveness testing, program eligibility, and alignment with the Integrated Resource Plan.

of E1's 21 primary research into incentive levels; and - 22 Integrated Resource Plan alignment and its implications for avoided costs and DSM 23 targets. - 24 The Industrial Group looks forward to exploring these issues and may raise addit...

AI summary The Industrial Group references E1's research on incentive levels and the Integrated Resource Plan's alignment with avoided costs and DSM targets. They anticipate raising additional issues as evidence develops during the hearing.

36 Many parties have filed IRs and evidence in this matter, including the Consumer Advocate. In a 37 report authored by Theodore Love, of Green Energy Economics Group, Inc. (GEEG), Mr. Love 38 raises several concerns regarding E1's Applica...

AI summary The document discusses concerns raised by Theodore Love of Green Energy Economics Group, Inc. regarding EfficiencyOne's Application, particularly focusing on affordability and the under-delivery of energy savings compared to Nova Scotia Power's Integrated Resource Plan. Affordability is highlighted as a central consideration in the decision-making process.

inancing. We will perform an independent "stress test" of t he IR-DEER program design and business model t hat will validate forecast program participation and costing. Chris is the Project Director. 2025 Long-Term Gas Resource Plan (LTGRP...

AI summary The document outlines FortisBC's engagement with Posterity Group to develop long-term resource plans, including end-use models and scenario analysis to forecast energy demand, GHG emissions, and system impacts. The models will support infrastructure planning, rate analysis, and supply optimization, with results presented via an interactive data visualization platform.

oject Director and commercial sector advisor, providing scope, methodology and technical advice and direction. Long Term Resource Plan Model and Forecast: FortisBC (October 2016-June 2017). FortisBC tumed to Posterity Group to develop a ne...

AI summary FortisBC engaged Posterity Group to develop a new end-use forecasting model to enhance their resource forecasting approach and generate a 2017 forecast. The project involved building a new modeling platform with transparent data input files and incorporated various policy drivers, including carbon pricing and efficiency activity impacts. Chris acted as the Commercial Sector lead and Project Director.

ding FortisBC's 2021 CPR. It supported adjust ments to PNG's current portfolio of DSM programs and PNG's 2023 DSM Plan and Resource Plan filing. Chris acted as Project Director and Commercial Advisor. 2022 Long Term Gas Resource Plan Deman...

AI summary The text discusses FortisBC's 2021 CPR and their 2022 Long Term Gas Resource Plan, supported by Posterity Group's analysis of gas demand and policy impacts. Chris is involved as Project Director in both projects.

REGULATORY EXPERIENCE - G-215-24 2024 Consolidated Resource Plan: Pacific Northern Gas - o Regulatory Support - EB-2021-0002 Mult i-Year Natural Gas DSM Plan: Enbridge Gas Inc. - o Regulatory Support - G-371-22 2023- 2027 Demand-Side Manag...

AI summary The text lists various regulatory filings and plans related to energy and gas resource management, including long-term gas resource plans, demand-side management expenditures plans, and energy conservation initiatives by companies such as FortisBC Energy Inc. and Pacific Northern Gas.

DR Participation Study - 1. In recognition of the potential value that customers participating in the Large Industrial Interruptible Rider (LIIR), can provide to the electricity system outside of Nova Scotia Power(NSP)-dispatched interrupt...

AI summary EfficiencyOne and the Industrial Group agree to jointly develop a study to assess opportunities for demand response (DR) participation beyond existing LIIR obligations. The study will be finalized within three months of the Board's decision and executed within 12 months, with potential pilot development if findings support it.

13 Table 4. Change in Non-participant Bills for IRP (IRP EE + Preferred Plan DR + 14 Preferred Plan Solar) compared to E1 Preferred Plan Rate Class 27-46 Avg Residential 0.30% Small General 0.51% General 0.66% Large General 0.27% Small Ind...

AI summary Table 4 shows the change in non-participant bills for the Integrated Resource Plan (IRP) compared to the E1 Preferred Plan, with different rate classes showing varying percentages of change, ranging from -0.06% to 0.66%.

HEARING ORDER On March 31, 2026, EfficiencyOne (E1) applied to the Board to approve the 2027-2031 Demand-Side Management Purchase Agreement between EfficiencyOne and Nova Scotia Power Incorporated, the establishment of a final agreement be...

AI summary On March 31, 2026, EfficiencyOne (E1) requested the Board's approval for a 2027-2031 Demand-Side Management (DSM) Purchase Agreement with Nova Scotia Power Incorporated, seeking to establish a final agreement and approve a DSM Resource Plan for the specified period.

NOTICE OF PUBLIC HEARING _______________________________________________________________________________ On March 31, 2026, EfficiencyOne applied to the Board to approve the 2027-2031 Demand-Side Management Purchase Agreement between Effic...

AI summary EfficiencyOne seeks approval for a 2027-2031 Demand-Side Management (DSM) Purchase Agreement with Nova Scotia Power Incorporated and the establishment of a DSM Resource Plan. A public hearing will occur from August 4-7, 2026, at the Office of the Board in Halifax to consider the application.

Appendix B - Rate and Bill Impact Analysis of the 2027-2031 DSM Resource Plan and 2026 Historical - Attachment 1: RBIA Summary Results 2027-2031 DSM Resource Plan and 2026 Historical - Attachment 2: Results by Rate Class (2027-2031 Preferr...

AI summary Appendix B outlines attachments analyzing the rate and bill impact of Nova Scotia Power's 2027-2031 Demand Side Management (DSM) Resource Plan and 2026 historical data. It includes summaries, rate-class results, assumptions, pricing methodology, and rate models for preferred and alternate scenarios, supporting regulatory review by the Nova Scotia Energy Board.

IN THE MATTER OF THE PUBLIC UTILITIES ACT – and – IN THE MATTER OF AN APPLICATION by EFFICIENYONE for approval of the 2027- 2031 Demand-Side Management (DSM) Purchase Agreement between EfficiencyOne and Nova Scotia Power Incorporated, the...

AI summary The document outlines an application by EfficiencyOne for approval of a 2027-2031 Demand-Side Management (DSM) Purchase Agreement and Resource Plan with Nova Scotia Power Incorporated, seeking establishment of a final agreement under the Public Utilities Act. The proceeding is before a panel including Stephen T. McGrath, Steven M. Murphy, and Darlene Willcott.

HEARING ORDER On March 31, 2026, EfficiencyOne (E1) applied to the Board to approve the 2027-2031 Demand-Side Management Purchase Agreement between EfficiencyOne and Nova Scotia Power Incorporated, the establishment of a final agreement be...

AI summary On March 31, 2026, EfficiencyOne (E1) applied to the Board for approval of a 2027-2031 Demand-Side Management (DSM) Purchase Agreement with Nova Scotia Power Incorporated, seeking to establish a final agreement and approve a DSM Resource Plan.

NOTICE OF PUBLIC HEARING _______________________________________________________________________________ On March 31, 2026, EfficiencyOne applied to the Board to approve the 2027-2031 Demand-Side Management Purchase Agreement between Effic...

AI summary EfficiencyOne seeks Board approval for a 2027-2031 Demand-Side Management (DSM) Purchase Agreement with Nova Scotia Power Incorporated and a DSM Resource Plan. A public hearing will occur August 4-7, 2026, at the Office of the Board in Halifax.

NOVA SCOTIA ENERGY BOARD IN THE MATTER OF: The Public Utilities Act – 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 Sco...

AI summary The Nova Scotia Energy Board is considering EfficiencyOne's application for approval of a 2027-2031 Demand-Side Management (DSM) Purchase Agreement with Nova Scotia Power Incorporated, including the establishment of a final agreement and DSM Resource Plan under the Public Utilities Act.

NOVA SCOTIA ENERGY BOARD IN THE MATTER OF: The Public Utilities Act -and- IN THE MATTER OF: An application by EƯiciencyOne for approval of the 2027-2031 Demand-Side Management (DSM) Purchase Agreement between EƯiciencyOne and Nova Scotia P...

AI summary The Nova Scotia Energy Board is considering an application by EƯiciencyOne for approval of a 2027-2031 Demand-Side Management (DSM) Purchase Agreement with Nova Scotia Power Incorporated, along with establishing a final agreement and approving a DSM Resource Plan under the Public Utilities Act.

NOVA SCOTIA ENERGY BOARD IN THE MATTER OF: The PUBLIC UTILITIES ACT -and- IN THE MATTER OF: APPLICATION by EFFICIENYONE for approval of the 20272031 Demand-Side Management (DSM) Purchase Agreement between EfficiencyOne and Nova Scotia Powe...

AI summary The Nova Scotia Energy Board is considering an application by EfficiencyOne for approval of a 2027-2031 Demand-Side Management (DSM) Purchase Agreement with Nova Scotia Power Incorporated, including the establishment of a final agreement and a DSM Resource Plan under the Public Utilities Act.

NOVA SCOTIA ENERGY BOARD IN THE MATTER OF: The Public Utilities Act - 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 Scot...

AI summary The Nova Scotia Energy Board is considering an application by EfficiencyOne for approval of a 2027-2031 Demand-Side Management (DSM) Purchase Agreement with Nova Scotia Power Incorporated, including the establishment of a final agreement and approval of a DSM Resource Plan.

NOVA SCOTIA ENERGY BOARD IN THE MATTER OF: The Public Utilities Act IN THE MATTER OF: An Application by EfficiencyOne for approval of the 2027-2031 Demand-Side Management (DSM) Purchase Agreement between EfficiencyOne and Nova Scotia Power...

AI summary The Nova Scotia Energy Board is considering an application by EfficiencyOne for approval of a 2027-2031 Demand-Side Management (DSM) Purchase Agreement with Nova Scotia Power Incorporated, including the establishment of a final agreement and approval of a DSM Resource Plan.

NOVA SCOTIA ENERGY BOARD IN THE MATTER OF: AN APPLICATION BY EfficiencyOne for approval of the 2027- 2031 Demand-Side Management (DSM) Purchase Agreement between EfficiencyOne and Nova Scotia Power Incorporated, the establishment of a fina...

AI summary EfficiencyOne seeks approval for a 2027-2031 Demand-Side Management (DSM) Purchase Agreement with Nova Scotia Power Incorporated, including establishment of a final agreement and approval of a DSM Resource Plan. The Nova Scotia Energy Board is reviewing the application.

IN THE MATTER OF AN APPLICATION by EFFICIENCYONE for approval of the 2027-2031 Demand-Side Management (DSM) Purchase Agreement between EfficiencyOne and Nova Scotia Power Incorporated, the establishment of a final agreement between the par...

AI summary EfficiencyOne seeks approval for a 2027-2031 Demand-Side Management (DSM) Purchase Agreement and Resource Plan with Nova Scotia Power Incorporated, requesting establishment of a final agreement and approval of the DSM Resource Plan.

April 21, 2026 Nova Scotia Energy Board 3rd Floor, Summit Place 1601 Lower Water Street Halifax, Nova Scotia B3J 3P6 ATTENTION: Crystal Henwood, Clerk of the Board Via Email: [email protected] and Via Fax: (902) 424-3919 Dear Panel Membe...

AI summary EfficiencyOne seeks approval for a 2027-2031 Demand-Side Management (DSM) Purchase Agreement with Nova Scotia Power Incorporated and a DSM Resource Plan. The Kwilmu'kw Maw-klusuaqn Negotiation Office (KMKNO) and Assembly of Nova Scotia Mi'kmaw Chiefs (ANSMC) have filed a notice of intervention.

IN THE MATTER OF AN APPLICATION by EFFICIENCYONE for approval of the 2027-2031 Demand-Side Management (DSM) Purchase Agreement between EfficiencyOne and Nova Scotia Power Incorporated, the establishment of a final agreement between the par...

AI summary EfficiencyOne seeks approval for a 2027-2031 Demand-Side Management (DSM) Purchase Agreement with Nova Scotia Power Incorporated, the establishment of a final agreement, and approval of a DSM Resource Plan.

29 Request IR-9: 30 31 Reference: Evidence, page 41, Figure 4 Payback Analysis – Preferred Plan. 32 33 Please provide a comparable graph for the IRP DSM scenario. 34 35

AI summary Request IR-9 asks for a comparable graph for the IRP DSM scenario, referencing a payback analysis figure from evidence page 41.

NOVA SCOTIA ENERGY BOARD IN THE MATTER OF: THE PUBLIC UTILITIES ACT - and - IN THE MATTER OF: AN APPLICATION by EFFICIENYONE for approval of the 2027- 2031 Demand-Side Management (DSM) Purchase Agreement between EfficiencyOne and Nova Scot...

AI summary The Nova Scotia Energy Board is considering an application by EfficiencyOne for approval of a 2027-2031 Demand-Side Management (DSM) Purchase Agreement with Nova Scotia Power Incorporated, along with establishing a final agreement and approving a DSM Resource Plan under the Public Utilities Act.

Request IR-7: Regarding Section 2.3 "Standardized Filing Framework" of the Application: a. Section 2.3.1 "The 2022 Integrated Resource Plan", pdf pgs. 28-29 state: "The Standardized Filing Framework directs that the Resource Plan identifie...

AI summary The document discusses Section 2.3.1 of NS Power's 2022 Integrated Resource Plan (IRP), which outlines 683.1 GWh of energy savings and 123.9 MW of demand savings through energy efficiency by 2031. It emphasizes balancing long-term Demand-Side Management (DSM) benefits with short-term affordability challenges for Nova Scotia residents and businesses.

Document: 329676 Date Filed: May 7, 2026 Page 25 of 37 1 i. Please confirm whether these proposed enhancements have the support of 17 As the system operator, IESO-NS is responsible for ensuring an adequate electricity supply is 18 availabl...

AI summary The document outlines requests for clarification regarding the DSM Plan, specifically about consultations with the IESO-NS, target reductions in demand and energy, and geographic focus areas. It also references NS Power's IRP and Evergreen Update in relation to supply-side resources.

Appendix B - Rate and Bill Impact Analysis, 2027-31 DSM Resource Plan and 2026 Historical, pp. 1-23 (Attach. 1-10)

AI summary The document is Appendix B of a regulatory proceeding analyzing rate and bill impacts for Nova Scotia's 2027-31 DSM Resource Plan and 2026 historical data. It includes attachments 1-10 covering technical analyses, though specific content details are not provided in the heading text.

NOVA SCOTIA ENERGY BOARD IN THE MATTER OF: THE PUBLIC UTILITIES ACT - 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 Sco...

AI summary The Nova Scotia Energy Board is considering EfficiencyOne's application 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 under the Public Utilities Act.

d. Please estimate the gap between the proposed 2027-2031 DSM Plan and the IRP Reference Plan in 2027, 2028, 2029, 2030, 2031, and accumulated across all these years. e. Does E1 agree that holding investment at current levels in nominal do...

AI summary The document requests estimates on gaps between the 2027-2031 DSM Plan and the IRP Reference Plan, questions about investment trends in constant vs. nominal dollars, and alignment with NS Power's IRP energy savings. It also references E1's collaboration with NSIESO under the More Access to Energy Act for IRP and avoided cost calculations.

b. Who are these low-income/equity participants? Request IR-51: Please refer to Table 41: 2027–2031 Small Business Energy Solutions Program Component on page 73 of Appendix A – Preferred Plan which states, "Overview: Provides small busines...

AI summary The text includes several requests related to defining small businesses, the inclusion of small businesses in the BNI demand response effort, and the rationale for not enrolling new customers in the Residential Demand Response program. It also requests details on the optimal demand response capacity levels from NS Power's 2022 IRP.

on page 80 of Appendix A – Preferred Plan which states, "Overview: Provides incentives to 1 customers to shift or curtail loads during peak events when there is value to the utility (Eco Shift 2 pathway)." 3 a. Please provide the Eco Shift...

AI summary The text discusses questions related to the Eco Shift and BNI Demand Response Program, including incentives for residential and BNI customers, participation growth, and considerations for expanding the programs. It also references Table 46 and the Integrated Resource Plan (IRP).

demand." 1 b. Does the avoided capacity cost reflect the value of the load reduction that coincided 2 with the utility peak period? If so, how can the benefits of the program be evaluated if 3 the data regarding the coincidence of the load...

AI summary The document contains several requests related to demand-side management programs, including evaluating avoided capacity costs, analyzing performance differences between morning and evening events, and reviewing progress on various initiatives and plans. It also requests updates on new programs, market transformation efforts, and potential plan amendments.

NON-CONFIDENTIAL 1 (i) details on the type of generator(s) (fuel, size, etc.) to be included in such a 2 program; 3 (ii) whether the program will recruit new or existing generators, or both; 4 (iii) how, and to whom, the program will be ma...

AI summary The document outlines a series of requests related to the design and evaluation of a demand-side management (DSM) program, including details on generator types, recruitment strategies, marketing methods, and performance measurement. It also addresses the timing of performance evaluations and the incorporation of the Integrated Resource Plan (IRP) into the DSM Plan.

- 2 Reference: Exhibit E-1, Application, page 36/71; and Exhibit E-1, Appendix B, Section 9, 27 2027–2031, representing approximately 64% of the 683.1 GWh savings target in NSPI's 6 overall budget envelope? 5 spending, what are the drivers...

AI summary The text refers to a regulatory proceeding involving Nova Scotia Power Inc. (NSPI) and discusses the 2027–2031 DSM Plan, which aims to achieve 64% of a 683.1 GWh savings target. It raises questions about budget envelopes, spending increases, and engagement with the IESO-NS during the IRP process.

- 29 (a) Please provide: 1 (i) The complete rate-class allocation methodology, step by 28 1. Update E1's 2026 potential study: Together with its consultants, E1 29 30 will complete an update of its 2026 potential study during the 2027–2031...

AI summary The document requests the current DSM Potential Study and outlines plans for its update, focusing on industrial customer programs and participant rate benefits. It also references BNI Demand Response and associated expenditures and capacity data for 2025.

2 Introduction - 3 Solar Nova Scotia's members operate at the intersection of distributed solar generation, - 4 customer-sited storage, electric vehicle charging, demand response, and grid-interactive - 5 customer infrastructure. - 6 The 2...

AI summary Solar Nova Scotia's members operate in distributed solar, storage, EV charging, and grid-interactive infrastructure. The 2027–2031 DSM Plan impacts strategic electrification, customer infrastructure, demand response roles, and portfolio space under amended Public Utilities Act provisions. Information Requests aim to clarify the Plan's assumptions, models, cost analysis, and resource planning.

NOVA SCOTIA ENERGY BOARD IN THE MATTER The PUBLIC UTILITIES ACT OF: -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 Scotia...

AI summary EfficiencyOne seeks approval for a 2027-2031 Demand-Side Management (DSM) Purchase Agreement and Resource Plan with Nova Scotia Power Incorporated under the Public Utilities Act. The application aims to establish a final agreement and secure regulatory approval for the DSM initiatives.

Question / Request: a) Has E1 evaluated the incremental available capacity from demand response under a scenario where new batteries were an eligible DSM measure?

AI summary The question asks whether E1 has evaluated the incremental available capacity from demand response under a scenario where new batteries are eligible DSM measures, focusing on the integration of battery storage within demand-side management frameworks.

EXPERT TESTIMONY AND REGULATORY FILINGS Report filed before New Jersey Board of Public Utilities (NJBPU), "An Assessment of Energy Affordability in New Jersey and Alternative Policy and Rate Options," March 30, 2025 (with Goksin Kavlak, Ka...

AI summary The text outlines various regulatory filings and expert testimonies submitted by organizations before different regulatory bodies across the United States, including the New Jersey Board of Public Utilities, Washington, D.C. Public Service Commission, Nevada Public Utilities Commission, and others, concerning energy affordability, electrification impacts, integrated resource plans, and rate adjustments.

- For National Grid Massachusetts, developed an independent assessment of its ESMP that identifies upgrades to the distribution and transmission systems, based on expected future scenarios. Dr. Sergici undertook an in depth assessment of C...

AI summary The text discusses various utility planning and decarbonization efforts, including assessments of distribution and transmission system upgrades, load flexibility strategies, policy reforms for renewable procurement, and evaluations of carbon trading schemes on building decarbonization laws.

NON-CONFIDENTIAL 1 Request IR-02: 2 Reference: Napoleon Evidence, page 27–29 (Low and Moderate Income [LMI] Oil-Heat 3 Electrification Alternative) 4 5 (a) Please provide the NB Power 2024/25–2026/27 DSM filing materials cited at footnote...

AI summary This document contains several information requests from EfficiencyOne to Synapse Energy Economics, Inc., concerning the NB Power 2024/25–2026/27 DSM filing, the NS Power 2022 Evergreen Integrated Resource Plan, and the evaluation of E1's Residential DR program. The requests seek clarification on cost-effectiveness methodologies, statutory frameworks, and the inclusion of DR programs in capacity planning.

- 22 Request IR-2: - 23 Reference: E-21, Page 7, lines 2-6. I recommend that E1 should file an MCA to address any material change to optimal DSM resource acquisition levels identified in the Evergreen IRP process. A material change would b...

AI summary The recommendation suggests that E1 should file a Mid-Course Adjustment (MCA) if there is a material change in optimal DSM resource acquisition levels identified in the Evergreen IRP process, specifically when cumulative DSM savings levels deviate by more than 20% from currently approved levels.

29 (a) Please confirm: 1 (i) what "optimal DSM resource acquisition levels" means 2 operationally — is this the IRP's Base profile or some other 3 metric; and 4 (ii) whether Mr. Love's recommended trigger would also apply 5 when IRP findin...

AI summary The text requests clarification on the meaning of 'optimal DSM resource acquisition levels' and whether a 20% threshold is appropriate for triggering a Mid-Course Adjustment (MCA). It also asks about the conditions for approving an MCA that increases the budget and the evidentiary requirements for such approvals. References to specific regulatory matters (M12386, M12916) are included.

- 11 (d) If the Board were to direct E1 to move toward the IRP-aligned scenario at 12 a total investment of approximately $464 million, does Mr. Love 13 recommend any limits, conditions, or reporting requirements regarding how 14 the incre...

AI summary The Board is considering directing E1 to align with the IRP scenario requiring an additional investment of approximately $145.25 million, and is seeking Mr. Love's recommendations on any limits, conditions, or reporting requirements for the allocation of this amount.

15 Request IR-6: 16 Reference: E-21, Page 23, lines 15-17. 17 … However, customers are already paying a DCRR, and even the IRP level 18 of DSM spending barely impacts the DCRR that customers are already 19 paying. - 20 (a) Please quantify...

AI summary The text requests a quantification of the impact of increased investment in demand-side management (DSM) on the Discounted Cash Flow Return Rate (DCRR) under different scenarios, including the Preferred Plan and the IRP-aligned scenario, and asks for an explanation of the basis for the conclusion that the impact is limited or immaterial.

8 Request IR-7: - 9 Preamble : At pages 24-25 of Mr. Love's evidence (Tables 2 and 3), he presents the 10 change in non-participant bills for the IRP-aligned scenario compared to E1's Preferred 11 Plan. For the plan years 2027-2031, he sho...

AI summary The request seeks clarification on the incremental cost of the IRP-aligned scenario compared to E1's Preferred Plan for Large and Medium Industrial classes from 2027 to 2031, including the absolute dollar value and methodology. It also asks whether the analysis uses the Preferred Plan or a no-DSM counterfactual as the baseline.

- 26 (a) Does Synapse consider the IRP's DSM savings assumptions to be a 27 binding target or a directional planning assumption for the purposes of 28 evaluating E1's Preferred Plan? Please explain. 1 (b) Please confirm whether Synapse con...

AI summary The document includes questions about Synapse's evaluation of the Integrated Resource Plan (IRP) DSM savings assumptions, whether they are binding targets or directional planning assumptions, and requests for a Rate and Bill Impact Analysis (RBIA) for scenarios closing the energy efficiency savings gap. It also asks about the impact of lower DSM spending on electricity affordability and the recommended annual DSM investment level for the 2027–2031 Plan.

DR Participation Study - 1. In recognition of the potential value that customers participating in the Large Industrial Interruptible Rider (LIIR), can provide to the electricity system outside of Nova Scotia Power(NSP)-dispatched interrupt...

AI summary EfficiencyOne and the Industrial Group propose a study to assess the potential value of customer participation in the Large Industrial Interruptible Rider (LIIR) outside of NSP-dispatched events. The study will evaluate customer interest, historical participation, and opportunities for locational targeting, among other factors, with the goal of determining the feasibility of a DR pilot.

to the 2022 IRP. That IRP was thoroughly researched and vetted by many stakeholders. These savings will never be recovered in spite of suggestions of catching up in future when the timing is better. The primary argument for freezing spendi...

AI summary The text discusses the affordability implications of freezing spending levels in the 2022 Integrated Resource Plan (IRP) versus the Preferred Plan. It argues that increased spending on DSM, Strategic Electrification, and Demand Response is necessary for affordability. Calculations show non-participants would face higher bills, but the Affordable Energy Coalition recommends aligning with the 2022 IRP's savings targets for long-term affordability.