Home M12780 Digest
AI-generated summary · Rir · 07/17/2026

Intervenors clash over strategic electrification cost-effectiveness and IRP-aligned DSM spending levels in EfficiencyOne's 2027–2031 plan proceeding.

M12780 · EfficiencyOne - 2027-2031 Demand Side Management (DSM) Plan Application
AI summary
  • The central legal and technical dispute concerns whether Strategic Energy Management (SE) must pass the Bca modified-PAC test at the resource level or only at the portfolio level: Synapse confirms SE scored 0.7 (modified-PAC) on its own but argues portfolio-level cost-effectiveness (2.3 combined) satisfies the statute, while EfficiencyOne's intervenors contend the M12282 Board Decision requires both GHG and electricity-cost reductions to be demonstrated independently for SE.
  • The Consumer Advocate (GEEG) recommends the Board direct E1 to pursue the IRP-aligned scenario of ~683 GWh over 2027–2031 (at $464 million) rather than the Preferred Plan's 435.4 GWh ($318.75 million), arguing the 2026 IESO-NS System Outlook shows reserve margins falling below 20% by 2035–2036 and that coal plants must remain online longer because fast-acting generation is delayed—risks that higher Demand Side Management investment could partially mitigate.
  • Multiple intervenors including the Consumer Advocate and The Brattle Group (for NSPI) flag E1's first-year energy efficiency unit cost of $0.66/kWh as roughly double the U.S. fleet average, with GEEG attributing the increase to predictable LED lighting market saturation, lapsed federal Greener Homes funding, and escalating heat-pump incentives that E1 has not justified with current primary research—recommending incentive levels be frozen at 2027 values pending a price-sensitivity or conjoint study by January 1, 2028.
  • The Brattle Group's evidence (on behalf of NSPI, responding to Consumer Advocate IRs) concludes the Residential Demand Response Program is "too limited, too expensive and too passive," noting E1's plan would add no new residential DR customers over 2027–2031, and recommends a new DR potential study focused on winter peak value and device-partner enrollment channels.
  • Parties are divided on Mid Course Adjustment governance: GEEG proposes Board-approved MCAs with a 30-day intervenor comment period and symmetric IRP-deviation triggers (±20%), while Synapse recommends a filing threshold of 10–15% with mandatory MCAs for any program addition or termination, deferring precise parameters to the Board after stakeholder consultation.

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-28 CA (E1) RIR 1 to 2 exhibits
  • E-29 CA (IG) RIR 1 to 5 exhibits
  • E-30 EE - Posterity (IG) RIR 1 to 5 exhibits
  • E-31 NSPI (E1) RIR 1 to 9 exhibits
  • E-32 NSPI (CA) RIR 1 to 10 exhibits
  • E-33 NSPI (IG) RIR 1 to 15 exhibits
  • E-34 SNS (IG) RIR 1 to 6 exhibits
  • E-35 SNS (SBA) RIR 1 to 7 exhibits
  • E-36 Synapse (CA) RIR 1 to 9 exhibits
  • E-37 Synapse (E1) RIR 1 to 4 exhibits
  • E-38 Synapse (IG) RIR 1 to 10 exhibits
  • E-39 Synapse (SBA) RIR 1 to 3 exhibits
  • 102821 Letter NSPI re: RIRs other_documents