EfficiencyOne files comprehensive responses to 17 information requests from eight intervenors on its proposed 2027–2031 Demand Side Management Plan, covering cost-effectiveness, baseline methodology, strategic electrification exclusion, and incentive-setting practices.

M12780 · EfficiencyOne - 2027-2031 Demand Side Management (DSM) Plan Application

AI summary

EfficiencyOne (Efficiencyone) defended its 2027-2031 Demand Side Management Preferred Resource Plan as affordable at $63.75 million annually (flat from 2026, with no inflationary increase), citing a lifetime unit cost of $0.05/kWh and a 71% share of budget directed to direct customer incentives, while acknowledging rising first-year unit costs ($0.66/kWh) driven by a portfolio shift toward deeper, longer-lived measures as low-cost lighting opportunities are exhausted.
Strategic Electrification was excluded from the Preferred Plan after failing the modified-PAC Cost Effectiveness test in both Round 1 and Round 2 modelling — including under optimistic assumptions with no peak demand impacts — and has instead been deferred to Enabling Strategies Es research for the latter years of the plan; EfficiencyOne confirmed it could file a mid-plan application to reintroduce strategic electrification if circumstances change.
The Eastward Energy (EE) IR set (E-8, fully read) probed the Custom New Construction program's baseline methodology, confirming the program is fuel-agnostic and uses a whole-building NECB reference case that mirrors proposed fuel mix — meaning buildings with natural gas heating are eligible for incentives on electricity savings — and raising questions about whether Net To Gross Evaluation ratios adequately capture fuel-switching decisions.
Demand Side Management Advisory Group (DSMAG) engagement drove key plan adjustments between rounds, including reduced demand response investment levels following member criticism of Round 2 assumptions; the filing also includes a redline/clean Standardized Filing framework developed collaboratively with DSMAG covering research standards, performance metrics, evaluation, and reporting requirements.
Excel model attachments (E-12-(i) and E-16-(i), section-mapped only) reveal the detailed quantitative architecture of the plan: avoided T&D capacity costs rising from $62.4/kW-yr in 2026, a 2% inflation rate, 10-year program and technology lives for demand response options, and year-by-year benefit-cost ratio and levelized cost outputs across energy efficiency, solar-PV, strategic electrification, and demand response scenarios.

Disclaimer: This summary was generated by AI from the filings it describes. We take care to make it accurate, but errors are possible - and it isn't advice. Only the filings themselves are the record: if you're relying on something here, confirm it against the source documents or the Nova Scotia Energy Board's own record. Full disclaimer →

What was filed

Documents filed on this day

E-10 E1 (MEU) RIR-1 exhibits
E-11 E1 (NRStor) RIRs 1-7 exhibits
E-12 E1 (NSEB) RIRs 1-66 - Redacted exhibits
E-12(BC) E1 (NSEB) RIRs 1-66 - Board Confidential Board Only exhibits
E-12-(i) Excel Attachments to NSEB IRs - zip folder exhibits
E-13 E1 (NS Power) RIRs 1-16 exhibits
E-14 E1 (SBA) RIRs 1-8 exhibits
E-15 E1 (SNS) RIRs 1-15 exhibits
E-16 E1 (Synapse) RIRs 1-90 exhibits
E-16-(i) Excel Attachments to Synapse IRs - zip folder exhibits
E-6 E1 (AEC) RIRs 1-11 exhibits
E-7 E1 (CA) RIRs 1-19 exhibits
E-7-(i) CA IR-02 Attachment 1 - Excel exhibits
E-8 E1 (EE) RIRs 1-10 exhibits
E-9 E1 (IG) RIRs 1-29 exhibits
E-9-(i) Excel Attachments to IG IRs - zip folder exhibits
102181 Letter from E1 enclosing RIRs and request for Board confidentiality other_documents