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Case study describing a home builder that has refined its home designs to achieve HERS scores of 49 to 56 on 40 to 70 homes per year.

Case study describing a DOE Zero Energy Ready 2013 Housing Innovation Award Winner in Long Island, NY, that scored HERS 43 without PV.

Case study describing a DOE Zero Energy Ready Home 2013 Housing Innovation Award Winner in Frederick MD that scored HERS 43 without PV and HERS 28 with PV.

Case study describing the growth of a Manassas-based home performance company that increased their annual number of projects from 13 to 79 between 2007 and 2012.

Case study describing the growth of a Decatur-based home performance company, that started as an off shoot of a design-build firm and has since increased their number of projects by 53% in 2 years.

Case study describing production home builder Urbane homes and how they managed to thrive by teaming up with the Building America program to create affordable and energy efficient homes.

Case Study describing a DOE Zero Energy Ready Home 2022 Housing Innovation Award winning production home in the mixed-humid climate that achieved a HERS 46 without PV.

Case study describing a DOE Zero Energy Ready Home 2022 Housing Innovation Award winning affordable home in the mixed-humid climate that achieved a HERS 1 with PV or HERS 40 without PV.

Case study describing Building America's Optimized Solutions for energy efficient home construction in a mixed-dry climate.

Case study poster describing a DOE Zero Energy Ready Home 2020 Housing Innovation Award winning attached home in the mixed-humid climate that used R-23 SIP walls, R-47 SIP roof, and triple-pane windows to achieve a HERS score of 38 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2016 Housing Innovation Award winning affordable home in the mixed-humid climate that used 2x4 studs 24" o.c. staggered on 2x6 plates XPS wrapped walls, 20-inch R-60 blown cellulose vented attic, triple-pane windows to achieve a HERS score of...

Case study poster describing a DOE Zero Energy Ready Home 2016 Housing Innovation Award winning custom spec home in the mixed-humid climate that used a vented attic with R-50 blown cellulose, triple-pane windows, and a 15.5 SEER heat pump to achieve a HERS score of 0 with PV and 42 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2020 Housing Innovation Award winning custom for buyer home in the mixed-humid climate that used 2x6, on-center walls, 19-inch, R-50 blown fiberglass vented attic insulation, and triple-pane windows to achieve a HERS score of 42 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2020 Housing Innovation Award winning custom for buyers homes in the mixed-humid climate that used R-27 SIP walls, a SIP roof, R-47 SIP attic, and triple-pane windows to achieve a HERS score of -22 with PV and 38 without PV.

Case study describing the first DOE Zero Energy Ready Home in Georgia that achieved a HERS score of 40 without PV and -10 with PV.

Case study poster describing a DOE Zero Energy Ready Home 2020 Housing Innovation Award winning affordable home in the mixed-humid climate that used 2x6, 24-inch on-center R-33 wall insulation, triple-pane windows and both ductless and ducted mini-split heat pumps to achieve a HERS score of -2 with...

Case study describing a builder in Georgia that designs energy-efficient homes for a green community, yielding homes with HERS scores as lowas 59 and electric bills as low as $50 a month.

Case study showing project and performance data and energy-efficiency measures for a DOE 2017 Housing Innovation Award winning home that was certified to the DOE Zero Energy Ready Home criteria.