AI-generated summary
· Closing_evidence · 12/08/2023
Nova Scotia Power files E3 Electrification Strategy Report and Wind Integration Study with NSEB under the 2023 Evergreen IRP Action Plan, quantifying costs and benefits of heat pump and EV adoption and flagging major winter peak load risks.
AI summary
- The E3 Electrification Strategy Report (N-8), commissioned by Nova Scotia Power and developed by Energy & Environmental Economics Inc., finds that electrification of transportation and buildings reduces emissions across all scenarios modelled, with a light-duty EV adopted in 2022 saving approximately 17–19 tonnes of CO₂ over its lifetime compared to an internal combustion vehicle.
- Cost-benefit analysis shows Strategic Electrification is net positive from participant, ratepayer, and societal perspectives for light-duty EVs and parcel trucks today, while transit buses are projected to reach net societal benefit by the mid-2020s; heat pump economics are favourable for most fuel-oil and electric-resistance customers under 2022 fuel prices, though outcomes are sensitive to oil prices, electricity rates, and equipment costs.
- The report projects that unmanaged EV charging could add over 1,000 MW of evening peak load by 2050, and that building electrification under a current-performance heat pump scenario could add more than 1,100 MW of non-coincident peak by 2050—rising to over 1,800 MW in a 1-in-10 extreme weather year—underscoring the urgency of Heat Pumps technology choice and Demand Response Load Control strategies including Time Varying Pricing and vehicle-grid integration.
- Eight utility recommendations are made including expanding TOU rates year-round, coordinating with Efficiency One on heat pump and EV rebate programs, building EV charging infrastructure in underserved communities, advancing proactive distribution planning, and embedding electrification load scenarios in the ongoing Integrated Resource Plan Evergreening process.
- The Wind Integration Study (N-7, section map only, not read in full) was prepared by Manitoba Hydro International and assesses frequency control and system strength challenges as Nova Scotia moves toward 80% renewable energy by 2030, identifying Rate of Change of Frequency (RoCoF) risks and recommending mitigation options including grid-forming inverters, battery energy storage, and synchronous condensers; both studies were formally submitted to the NSEB on December 8, 2023 via covering email (document 92257) and a stakeholder workshop was proposed for January 2024.
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What was filed
Documents filed on this day
- N-7 Wind Integration Study
- N-8 Electrification Strategy Report
- 92257 Email from NSPI enclosing Electrification Strategy Report