Case Studies

Case study poster describing a DOE Zero Energy Ready Home 2018 Housing Innovation Award winning multifamily home in the mixed-humid climate that achieved a HERS score of 41 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2018 Housing Innovation Award winning custom for buyer home in the mixed-humid climate that achieved a HERS score of 14 with PV and 35 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2018 Housing Innovation Award winning production home in the mixed-humid climate that achieved a HERS score of 52 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2018 Housing Innovation Award winning custom for buyer home in the marine climate that achieved a HERS score of 0 with PV and 41 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2018 Housing Innovation Award winning affordable home in the mixed-humid climate that achieved a HERS score of 8 wiht PV adn 37 without PV.

Case study describing a DOE Zero Energy Ready Home 2018 Housing Innovation Award winner that scored HERS 35 without PV and 0 with PV.

Case study describing a DOE Zero Energy Ready Home 2018 Housing Innovation Award winner that scored HERS 35 without PV and 14 with PV.

Case study poster describing a DOE Zero Energy Ready Home 2019 Housing Innovation Award winning custom spec home in the mixed-dry climate that achieved a HERS score of 16 with PV and 51 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2019 Housing Innovation Award winning custom for buyer home in the marine climate that achieved a HERS score of -12 with PV and 44 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2019 Housing Innovation Award winning custom for buyer home in the mixed-humid climate that achieved a HERS score of 0 with PV and 45 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2019 Housing Innovation Award winning custom spec home in the mixed-dry climate that achieved a HERS score of 49 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2019 Housing Innovation Award winning affordable home in the mixed-humid climate that achieved a HERS score of 40 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2019 Housing Innovation Award winning custom-for-buyer home in the mixed-humid climate that achieved a HERS score of -16 with PV and 47 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2019 Housing Innovation Award winning custom for buyer home in the mixed-humid climate that achieved a HERS score of 29 with PV and 45 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2019 Housing Innovation Award winning production home in the mixed-humid climate that achieved a HERS score of 53 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2019 Housing Innovation Award winning production home in the mixed-dry climate that achieved a HERS score of 37 with PV and 55 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2019 Housing Innovation Award winning custom-for-buyer home in the mixed-humid climate that achieved a HERS score of 42 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2019 Housing Innovation Award winning custom for buyer home in the marine climate that used achieved a HERS score of -11 with PV and 34 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2019 Housing Innovation Award winning affordable home in the mixed-humid climate that achieved a HERS score of -15 with PV and 51 without PV.

Case study describing project and performance data and energy-efficiency measures for a DOE 2019 Housing Innovation Award winning home that was certified to the DOE Zero Energy Ready Home criteria.

Case study describing project and performance data and energy-efficiency measures for a DOE 2019 Housing Innovation Award winning home that was certified to the DOE Zero Energy Ready Home criteria.

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 2020 Housing Innovation Award winning custom home in the cold climate that used 2x6, 24-inch on-center advanced framed walls, R-66 unvented attic insulation, and a 36 SEER mini-split heat pump to achieve a HERS score of -8 with PV and 42...

Case study poster describing a DOE Zero Energy Ready Home 2020 Housing Innovation Award winning custom spec homes in the mixed-dry climate that used 2x6, 16-inch on-center walls, a 16 SEER AC system, and 3.55-kW solar to achieve a HERS score of 11 with PV and 44 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2020 Housing Innovation Award winning custom spec homes in the marine climate that used 2x6, 24-inch on-center walls, R-50 to R-70 average roof insulation, and triple-pane windows to achieve a HERS score of 51 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2020 Housing Innovation Award winning production home in the mixed-humid climate that used 2x6, 24-inch on-center walls, R-49 roof insulation, and R-49 blown-in cellulose attic insulation to achieve a HERS score of 9 with PV and 46 without PV...

Case study poster describing a DOE Zero Energy Ready Home 2020 Housing Innovation Award winning production home in the mixed-humid climate that used 2x6, 24-inch on-center blown fiberglass wall insulation, OSB roof sheathing, and R-49 blown fiberglass attic insulation to achieve a HERS score of 50...

Case study poster describing a DOE Zero Energy Ready Home 2020 Housing Innovation Award winning production home in the mixed-dry climate that used 2x6, 16-inch on-center walls, and a 17 SEER central two-stage heat pump to achieve a HERS score of -6 with PV and 45 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 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 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 DOE Zero Energy Ready Home 2020 Housing Innovation Award winning production homes in the mixed-humid climate that used an energy recovery ventilator tied to the home's high efficiency central heat pump with a MERV 13 filter to achieve a HERS score of 9 with PV and 46 without...

Case study describing a DOE Zero Energy Ready Home 2020 Housing Innovation Award winning production home in the mixed-humid climate that used ENERGY STAR labeled appliances, WaterSense labeled fixtures, and 100% LED lighting to achieve a HERS score of 50 without PV.

Case study describing a DOE Zero Energy Ready Home 2020 Housing Innovation Award winning custom for buyer homes in the marine climate that achieved a HERS score of -19 with PV and 33 without PV.

Case study describing a DOE Zero Energy Ready Home 2020 Housing Innovation Award winning custom for buyer home in the marine climate that used a large south-facing roof which holds over 80 solar panels and large, south-facing windows and concrete floors, which provide passive solar heating to...

Case study describing a DOE Zero Energy Ready Home 2020 Housing Innovation Award winning affordable multifamily home in the mixed-humid climate that used water-saving plumbing fixtures and irrigation and efficient hot water distribution by means of a heat pump water heater and PEX piping to achieve...

Case study describing approaches to comprehensive retrofits that are in reach of the ordinary builder.

Case study describing a retrofit project in the mixed-humid climate zone.

Case study describing a retrofit project in Maryland.

Case study describing a whole-house, deep energy retrofit project in the marine climate.

Case study describing a deep energy renovation of a home in the marine climate.

Case study describing a retrofit project in the cold and very-cold climate zones.

Case study describing a retrofit project in the cold and very-cold climate zones.

Case study describing a new home construction project in the mixed-humid climate.

Case study describing a new home construction project in the marine climate.

Case study describing a new home construction project in the marine climate.

Case study describing a new home construction project in the cold climate.

Case study describing New Tradition Homes and the efficiency of the 94 Production homes they built in the Landover Commons community, which surpass the energy code requirements.

Case study describing Quadrant Homes, a production home builder, and their implementation of an energy-efficiency package provide allowed home owners to achieve energy savings of 40% Building America benchmark.

Case study describing a new home construction project in the marine climate.