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    Home Performance Extensible Markup Language was created to make data collection and reporting more efficient.

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  • A Solar-Assisted Heat Pump Water Heater

    Modest improvement in energy efficiency for electric-storage water heaters was implemented in 2015, but much greater improvements remain to be made.

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     A Solar-Assisted Heat Pump Water Heater

    A Solar-Assisted Heat Pump Water Heater

    By Carlos Colon and Danny Parker

    Water heating in residential buildings has become more important as the overall efficiency of buildings has improved over the last decade, with energy efficiency ...
    Solving the Unintended Consequences of a Home Performance Renovation

    Solving the Unintended Consequences of a Home Performance Renovation

    By Lesley Herrmann

    Tight homes are becoming more common around the country, even in the mid-South where many builders still believe that homes and crawl spaces should &...
    Home Performance Coalition Acquires <em>Home Energy</em>

    Home Performance Coalition Acquires Home Energy

    Dear Subscribers, We have exciting news! The Home Performance Coalition (HPC) is acquiring Home Energy magazine. As longtime collaborators, we’ve been working ...
    Editorial: Climate Change and Garage Door Openers

    Editorial: Climate Change and Garage Door Openers

    By Alan Meier

    California just approved legislation requiring all new garage door openers to have battery backups, so that doors would open even when electricity service is ...
    Spotlight on HPXML: A Look Ahead to 2019

    Spotlight on HPXML: A Look Ahead to 2019

    By Julie Caracino, HPC's Director of Research and Standards

    Last year was a great year for HPXML, the open data transfer standard for the residential energy efficiency ...
    ZNE Primer: Now Available!

    ZNE Primer: Now Available!

    By Ann Edminster

    The concept for this document came from members of the AIACC, who are embracing the architect’s ...

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