Case Studies

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 -13 with PV and 46 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 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 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 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 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 achieved a HERS score of 50 without PV.

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 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 poster describing a DOE Zero Energy Ready Home 2021 Housing Innovation Award winning production home in the mixed-humid climate that achieved a HERS score of 1 with PV.

Case study poster describing a DOE Zero Energy Ready Home 2021 Housing Innovation Award winning production home in the mixed-humid climate that achieved a HERS score of 51 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2021 Housing Innovation Award winning custom spec home in the mixed-humid climate that achieved a HERS score of 55 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2021 Housing Innovation Award winning custom for buyer home in the mixed-humid climate that achieved a HERS score of 24 with PV.

Case study describing a DOE Zero Energy Ready Home 2021 Housing Innovation Award winning production home in the mixed-humid climate that achieved a HERS 51 without PV.

Case study describing a DOE Zero Energy Ready Home 2021 Housing Innovation Award winning affordable home in the mixed-humid climate that achieved a HERS 33 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2022 Housing Innovation Award winning affordable home in the mixed-humid climate that used modular construction with R-33.5 double walls, R-50 fiberglass attic insulation, and 5.12 kW of solar panels to score a HERS of 1 with PV and 40...

Case study poster describing a DOE Zero Energy Ready Home 2022 Housing Innovation Award winning production home in the mixed-humid climate that used panelized 2x6 24-in. o.c. walls, R-49 cellulose in the attic, an unvented crawl, and 6.12 kW of solar panels to achieve a HERS score of 4 with PV and...

Case study poster describing a DOE Zero Energy Ready Home 2022 Housing Innovation Award winning production home in the mixed-humid climate that used 2x6 24-in. o.c. walls, an R-49 insulated attic, and an unvented insulated crawl space to achieve a HERS score of 46 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2022 Housing Innovation Award winning production home in the mixed-humid climate that used 2x6 16-inch on-center walls, an R-49 insulted attic, and insulated basement to achieve a HERS score of 45 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2022 Housing Innovation Award winning attached home in the mixed-humid climate that used 2x6 16-inch on-center walls, an R-49 insulated attic, and an insulated conditioned basement to achieve a HERS score of 45 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2022 Housing Innovation Award winning custom for buyer home in the mixed-humid climate that used 2x6 24-in. o.c. walls, R-28 open-cell spray foam in attic, and 7.14-kW of solar panels to achieve a HERS score of 9 with PV and 54 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2022 Housing Innovation Award winning custom-for-buyer home in the mixed-humid climate that used 2x4 16-inch on-center walls, and R-30 open-cell spray foam attic insulation to achieve a HERS score of 47 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2022 Housing Innovation Award winning custom-for-buyer home in the mixed-humid climate that used 2x6 16-in. o.c. walls, R-65 spray foam and fiberglass attic insulation, 18 kW of solar panels, and three 14-kW batteries to score HERS 1 with 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 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 poster describing a DOE Zero Energy Ready Home 2023 Housing Innovation Award winning custom spec home in the mixed-humid climate that achieved a HERS 26 with PV or HERS 50 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2023 Housing Innovation Award winning production home in the mixed-humid climate that achieved a HERS 41 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2023 Housing Innovation Award winning custom for buyer home in the mixed-humid climate that achieved a HERS -17 with PV or HERS 32 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2023 Housing Innovation Award winning custom-for-buyer home in the mixed-humid climate that achieved a HERS 37 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2023 Housing Innovation Award winning production, affordable home in the mixed-humid climate that achieved a HERS 8 with PV or HERS 44 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2023 Housing Innovation Award winning multifamily home in the mixed-humid climate that achieved a HERS 48 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2023 Housing Innovation Award winning custom-for-buyer home in the mixed-humid climate that achieved a HERS -11 with PV or HERS 47 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2023 Housing Innovation Award winning custom-for-buyer home in the mixed-humid climate that achieved a HERS 39 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2023 Housing Innovation Award winning affordable home in the mixed-humid climate that achieved a HERS -29 with PV or HERS 31 without PV.

Case study describing a DOE Zero Energy Ready Home 2023 Housing Innovation Grand Award winning custom for buyer home in the mixed-humid climate that achieved a HERS -17 with PV or HERS 32 without PV.

Case study describing a DOE Zero Energy Ready Home 2023 Housing Innovation Grand Award-winning production home in the mixed-humid climate that achieved a HERS 8 with PV or HERS 44 without PV.

Case study describing a DOE Zero Energy Ready Home 2023 Housing Innovation Grand Award-winning multifamily home in the mixed-humid climate that achieved a HERS 48 without PV.

Case study describing a multifamily deep energy retrofit project in Annapolis, Maryland.

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

Case study describing a multifamily, affordable housing retrofit project that achieved 44% energy savings using readily available, cost effective measures.

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

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

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