EfficiencyOne files responses to SBA and NSUARB information requests defending the portfolio design, cost-effectiveness methodology, and investment-split rationale for its 2023-2025 DSM Settlement Plan.

M10473 · E-ENS-R-22 EfficiencyOne 2023-2025 Demand Side Management (DSM) Plan Application

AI summary

Efficiencyone confirmed the 2023-2025 2023-2026 DSM Plan Settlement Plan uses a 50/50 Residential/BNI investment design objective, though final modelling produced a 55/45 split; the discrepancy reflects the mandated Demand Side Management Balanced Plan Approach first codified in the 2016 Consensus Agreement.
The SBA pressed E1 on whether greater investment in the higher-TRC BNI sector was considered; E1 responded that it did not model an aggressive BNI-only scenario and that historical shortfalls do not override the balanced-portfolio requirement, though the Mid-DSM scenario would have generated the highest net benefits ($517.2M vs. the Settlement Plan's $376.9M).
Cost Effectiveness testing used avoided costs from IRP Scenario 2.0C; E1 confirmed it cannot determine what investment changes would result from using Scenario 3.1C because no optimal DSM level was derived for that scenario.
On Strategic Electrification, E1 clarified it has not been directed by the province or NSUARB to pursue beneficial electrification, has no cost-effectiveness framework for such measures, and acknowledged electrification would likely increase rather than reduce customer electricity bills.
The New Home Construction program is being wound down after July 2022 registrations close due to a projected 70%+ savings reduction from heat-pump market baseline shifts, with residual 2023 costs carried into the Settlement Plan; E1 signalled it will seek a different format to support new residential construction.

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-12 E1(NSUARB) RIR-1 to RIR-41 exhibits
E-12-(ii) NSUARB IR-25 Attachment 1 - Excel exhibits
E-12-(iii) NSUARB IR-40 - Attachment 1 - Excel exhibits
E-13 E1(SBA) RIR-1 to RIR-26 exhibits
E-8-(i) CA IR-06 Attachment 1 - Excel exhibits
E-8-(ii) CA IR-06 Attachment 2 - Excel exhibits
E-9-(i) IG IR-28 - Attachment 1 - Excel exhibits
E-9-(ii) IG IR-31 - Attachment 1 - Excel exhibits