rmi-electrification-rate-design-analysis-assumptions-66a0b39b031ddf3e.pdf

The document describes a framework for calculating residential utility bills by combining NREL ResStock building load data with electric and gas tariff data from Genability and RateAcuity. It details specific adjustments made to tariffs for Xcel Energy (Minnesota), Pepco (Maryland), Central Maine Power (Maine), and Eversource Energy (Massachusetts) to ensure analytical consistency. The analysis specifically models upgrades to high-efficiency cold-climate air-to-air heat pumps and evaluates the impact of 'electrification-friendly' rate designs on customer costs.

• RMI's analytical framework estimates residential bill changes by combining NREL ResStock's 2024.2 release load profiles—specifically 'upgrade scenario 2' for high efficiency cold-climate air-to-air heat pumps with electric backup—with tariff data from Genability and RateAcuity and EIA state-average fuel prices.
• For Xcel Energy in Minnesota, RMI manually adjusted percent-based interim rate adjustment surcharges to prevent overapplication, excluding components such as the Conservation Improvement Program Adjustment, Environmental Improvement Charge, Mercury Cost Recovery, Renewable Development Fund, Affordability Surcharge, and Renewable Energy Standard Adjustment.
• In the analysis for Pepco Maryland, RMI created a hypothetical 'default' flat rate with consistent volumetric charges to serve as a reference point against the existing 'electrification-friendly' rate, which features seasonally differentiated volumetric charges.
• RMI estimated heat pump enrollment for Central Maine Power by applying the ratio of the utility's customers to all state electricity customers against total state heat pump data, assuming 10,000 customers are enrolled in the opt-in rate as of 2026.

APA

RMI (n.d.). rmi-electrification-rate-design-analysis-assumptions-66a0b39b031ddf3e.pdf. https://rmi.org/app/uploads/2026/06/RMI-Electrification-Rate-Design-Analysis-Assumptions.pdf

Chicago

RMI. rmi-electrification-rate-design-analysis-assumptions-66a0b39b031ddf3e.pdf. n.d. https://rmi.org/app/uploads/2026/06/RMI-Electrification-Rate-Design-Analysis-Assumptions.pdf.

Wikipedia

{{cite report |author=RMI |title=rmi-electrification-rate-design-analysis-assumptions-66a0b39b031ddf3e.pdf |url=https://rmi.org/app/uploads/2026/06/RMI-Electrification-Rate-Design-Analysis-Assumptions.pdf |access-date=17 August 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{rmindrmielectrificationratedesignanalysisassumptions66a0b39b031ddf3epdf, author = {{RMI}}, title = {{rmi-electrification-rate-design-analysis-assumptions-66a0b39b031ddf3e.pdf}}, institution = {RMI}, url = {https://rmi.org/app/uploads/2026/06/RMI-Electrification-Rate-Design-Analysis-Assumptions.pdf}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }