Electric utilities; energy efficiency upgrades; report. States that it is the policy of the Commonwealth to reduce, wherever feasible and cost-effective, heating-related costs of living for low-income residents. The bill requires Dominion Energy and Appalachian Power Company to make best, reasonable efforts to provide prescriptive efficiency measures, as defined in the bill, and related efficiency improvements to at least 30 percent of the qualifying households identified by the utility by December 31, 2030, provided that the State Corporation Commission determines that such upgrades are in the public interest. The bill also requires Dominion Energy and Appalachian Power Company to report, no later than January 1, 2027 and in any recurring filing that the Commission deems appropriate, activities, plans, and progress regarding the provisions of the bill.