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  • Research Report
  • Utilities and the Power Sector
  • Jan 1, 1991

    Engineering Estimates vs. Impact Evaluation Results: How Do They Compare and Why?

    This paper reviews the results of 42 impact evaluations conducted by electric utilities and examines how engineering estimates of savings compare to impact evaluation results. Prepared for the 1991…

    This paper reviews the results of 42 impact evaluations conducted by electric utilities and examines how engineering estimates of savings compare to impact evaluation results. Prepared for the 1991 International Energy Program Evaluation Conference.

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    Bridging the Equity Gap for Utility Energy Efficiency Programs
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  • Affordability and Energy Equity
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  • Bridging the Equity Gap for Utility Energy Efficiency Programs

    Utility energy efficiency programs have increased investment in low-income households, but significant gaps remain. This report examines spending and savings trends across 48 major U.S. utilities, identifies barriers to expanding low-income programs and highlights policies and program strategies that can improve energy affordability and equitable access to efficiency upgrades.

    Jul 31, 2026

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