Home Performance with ENERGY STAR: Utility Bill Analysis on Homes Participating in Austin Energy's Program

    Research output: NRELTechnical Report


    Home Performance with ENERGY STAR (HPwES) is a jointly managed program of the U.S. Department of Energy (DOE) and the U.S. Environmental Protection Agency (EPA). This program focuses on improving energy efficiency in existing homes via a whole-house approach to assessing and improving a home's energy performance, and helping to protect the environment. As one of HPwES's local sponsors, AustinEnergy's HPwES program offers a complete home energy analysis and a list of recommendations for efficiency improvements, along with cost estimates. To determine the benefits of this program, the National Renewable Energy Laboratory (NREL) collaborated with the Pacific Northwest National Laboratory (PNNL) to conduct a statistical analysis using energy consumption data of HPwES homes provided byAustin Energy. This report provides preliminary estimates of average savings per home from the HPwES Loan Program for the period 1998 through 2006. The results from this preliminary analysis suggest that the HPwES program sponsored by Austin Energy had a very significant impact on reducing average cooling electricity for participating households. Overall, average savings were in the range of25%-35%, and appear to be robust under various criteria for the number of households included in the analysis.
    Original languageAmerican English
    Number of pages37
    StatePublished - 2007

    NREL Publication Number

    • NREL/TP-640-41903


    • Austin Energy
    • EE
    • electricity
    • energy efficiency
    • environmental protection agency
    • EPA
    • home cooling
    • home energy savings
    • Home Performance with ENERGY STAR (HPwES)
    • NREL
    • Pacific Northwest National Laboratory
    • PNNL


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