Case Studies

Case study describing a 2014 DOE Zero Energy Ready Home that scored HERS 42 without PV and -1 with PV.

Case study describing a DOE Zero Energy Ready Home 2013 Housing Innovation Award Winner that scored HERS 37 without PV and -1 with PV.

Case study describing a DOE Zero Energy Ready Home 2014 Housing Innovation Award winner that scored HERS 69 without PV and -1 with PV.

Case study describing a 2015 Housing Innovation Award-winner built by Dwell Development in Seattle, Washington.

Case study describing a 2015 Housing Innovation Award-winner built by Hammer and Hand in Portland, Oregon.

Case study describing a DOE 2015 Housing Innovation Award-winner built by TC Legend Homes in Bellingham, Washington.

Case study poster describing a DOE Zero Energy Ready Home 2016 Housing Innovation Award winning custom spec home in the marine climate that achieved a HERS score of -9 with PV and 36 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2016 Housing Innovation Award winning affordable home in the marine climate that achieved a HERS score of 50 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2016 Housing Innovation Award winning custom spec home in the marine climate that achieved a HERS score of 0 with PV and 45 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2016 Housing Innovation Award winning custom for buyer home in the marine climate that achieved a HERS score of -2 with PV and 44 without PV.

Case study describing a DOE Zero Energy Ready Home 2016 Housing Innovation Award winner that scored HERS 50 without PV.

Case study describing a DOE Zero Energy Ready Home 2016 Housing Innovation Award winner that scored HERS 45 without PV and 0 with PV.

Case study poster describing a DOE Zero Energy Ready Home 2017 Housing Innovation Award winning custom for buyer home in the marine climate that achieved a HERS score of -18 with PV and 39 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 2 with PV and 37 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2018 Housing Innovation Award winning custom spec home in the marine climate that achieved a HERS score of 0 with PV and 35 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2018 Housing Innovation Award winning 5-story multifamily building in the marine climate that achieved very high efficiency.

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 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 44 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 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 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 affordable home in the marine climate that used 2x6, 24-inch on-center, R-21 cavity wall insulation, and a 19 SEER mini-split heat pump to achieve a HERS score of 0 with PV and 56 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2020 Housing Innovation Award winning custom for buyer homes in the marine climate that used R-29 SIP walls, R-59 graphite roof SIPs, and triple-pane windows to achieve 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 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 poster describing a DOE Zero Energy Ready Home 2021 Housing Innovation Award winning attached housing in the marine climate that achieved a HERS score of 0 with PV.

Case study poster describing a DOE Zero Energy Ready Home 2021 Housing Innovation Award winning custom for buyer home in the marine climate that achieved a HERS score of -41 with PV.

Case study poster describing a DOE Zero Energy Ready Home 2021 Housing Innovation Award winning attached housing in the marine climate that achieved a HERS score of 41 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2021 Housing Innovation Award winning custom spec home in the marine climate that achieved a HERS score of -2 with PV.

Case study poster describing a DOE Zero Energy Ready Home 2021 Housing Innovation Award winning affordable home in the marine climate that achieved a HERS score of 0 with PV.

Case study poster describing a DOE Zero Energy Ready Home 2021 Housing Innovation Award winning custom spec home in the marine climate that achieved a HERS score of -13 with PV.

Case study poster describing a DOE Zero Energy Ready Home 2021 Housing Innovation Award winning attached housing project in the marine climate that achieved a HERS score of -20 with PV.

Case study poster describing a DOE Zero Energy Ready Home 2021 Housing Innovation Award winning custom for buyer home in the marine climate that achieved a HERS score of -22 with PV.

Case study describing a DOE Zero Energy Ready Home 2021 Housing Innovation Award winning custom spec home in the marine climate that achieved a HERS -13 with PV or HERS 47 without PV.

Case study describing a DOE Zero Energy Ready Home 2021 Housing Innovation Award winning custom for buyer home in the marine climate that achieved a HERS -22 with PV or HERS 35 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2022 Housing Innovation Award winning custom-for-buyer home in the marine climate that used R-28 SIP walls, a ground-source heat pump, triple-pane windows, and 9.92 kW of solar panels to achieve a HERS score of -18 with PV and 39 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2022 Housing Innovation Award winning custom-for-buyer home in the marine climate that used graphite SIP walls and roof, triple-pane windows, an air-to-water heat pump, and 10.56 kW of solar to achieve a HERS score of -23 with PV and 33...

Case study describing the construction of prototype zero energy ready high-performance manufactured homes in the Pacific Northwest.