Case Studies

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 production home in the mixed-dry climate that achieved a HERS 34 with PV or HERS 45 without 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 attached home in the cold climate that achieved a HERS -2 with PV or HERS 40 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 describing a DOE Zero Energy Ready Home 2021 Housing Innovation Award winning production home in the cold climate that achieved a HERS 5 with PV or HERS 39 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 custom spec home in the mixed-dry climate that used 2x6 16-in. o.c. walls, R-25 spray foam attic insulation, and 3.45 kW of solar panels to achieve a HERS score of 30 with PV and 45 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2022 Housing Innovation Award winning custom spec home in the cold climate that used R-22 ICF walls, an ICF insulated basement, and an R-50 cellulose attic insulation to achieve a HERS score of 49 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 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 custom-for-buyer home in the cold climate that used 2x6 24-in. o.c. walls, R-38 blown fiberglass in attic, an insulated basement, triple-pane windows, and 9.75 kW of solar panels to achieve a HERS score...

Case study poster describing a DOE Zero Energy Ready Home 2022 Housing Innovation Award winning custom-for-buyer home in the hot-humid climate that used 2x6 24-in. o.c. walls with mineral wool and insulated sheathing, triple-pane windows, and 6.3-kW of solar panels for a HERS score of 3 with PV and...

Case study poster describing a DOE Zero Energy Ready Home 2022 Housing Innovation Award winning attached home in the cold climate that used panelized wall construction with 2x6 24-in. o.c. walls, aerosolized acrylic sealant, and R-60 blown fiberglass in attic to achieve a HERS score of 50 without PV...

Case study poster describing a DOE Zero Energy Ready Home 2022 Housing Innovation Award winning affordable home in the cold climate that used 2x6 24-in. o.c. walls, an R-60 vented attic, a ductless mini-split with transfer fans over bedroom doors, and triple-pane windows to achieve a HERS score of...

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 production homes in the mixed-dry climate that used spray-foamed 2x6 16-in. o.c. walls and attic, aerosolized acrylic whole-house sealant, and 3.74 kW of solar panels to achieve a HERS score of 14 with PV...

Case study poster describing a DOE Zero Energy Ready Home 2022 Housing Innovation Award winning custom spec home in the cold climate that used 2x6 24-inch on-center walls, R-50 fiberglass in the attic, an unvented crawlspace, and 4.125 kW of solar PV to achieve a HERS 26 with PV and 47 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2022 Housing Innovation Award winning production home in the hot-humid climate that used 2x6 24-inch on-center walls, R-21 open-cell spray foam in the attic, and 5.2kW of solar panels to achieve a HERS score of 17 with PV and 53 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 spec home in the hot-humid climate that used 2x6 16-in. o.c. walls, R-38 spray-foam in attic, rigid mineral wool in basement, 5.44 kW of solar panels, and a 10-kW battery to achieve a HERS score of...

Case study poster describing a DOE Zero Energy Ready Home 2022 Housing Innovation Award winning custom-for-buyer home in the hot-humid climate that used 2x6 and 2x4, 16-in. o.c. R-24 walls, an R-38 spray-foamed attic, and high-SEER heat pump to achieve a HERS score of 49 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 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 poster describing a DOE Zero Energy Ready Home 2022 Housing Innovation Award winning production home in the cold climate that used R-39 double walls, R-50 fiberglass in attic, 9.88 kW of solar panels, and 10 kW of battery storage to achieve a HERS score of 9 with PV and 42 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2022 Housing Innovation Award winning custom-for-buyer home in the cold climate that used 2x4 16-in. o.c. walls, R-50 fiberglass in attic, R-10 rigid polyiso on basement walls, and aerosolized acrylic sealant to achieve a HERS score of 35...

Case study poster describing a DOE Zero Energy Ready Home 2022 Housing Innovation Award winning custom-for-buyer home in the cold climate that used R-53 double walls, R-70 cellulose in attic, triple-pane windows, 25 kW of solar panels, and a mini-split heat pump for a HERS score of 31 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2022 Housing Innovation Award winning production home in the mixed-dry climate that used 2x6 16-in. o.c. walls with 5.5 inches of spray foam plus R-5 rigid continuous insulation, R-33 open-cell spray foam attic insulation, and 6.23 kW rooftop...

Case study poster describing a DOE Zero Energy Ready Home 2022 Housing Innovation Award winning custom-for-buyer home in the cold climate that used R-22 ICF walls, a spray-foamed attic and slab, triple-pane windows, and 13.74 kW solar PV roof shingles to score HERS -13 with PV or 26 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 a DOE Zero Energy Ready Home 2022 Housing Innovation Award winning attached home in the cold climate that achieved a HERS 50 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 describing a DOE Zero Energy Ready Home 2022 Housing Innovation Award winning production home in the mixed-dry climate that achieved a HERS 14 with PV or HERS 44 without PV.

Case study describing a DOE Zero Energy Ready Home 2022 Housing Innovation Award winning custom spec home in the hot-humid climate that achieved a HERS 20 with PV or HERS 50 without PV.

Case Study describing a DOE Zero Energy Ready Home 2022 Housing Innovation Award winning custom for buyer home in the marine climate that achieved a HERS -23 with PV or HERS 33 without PV.

Case study describing a DOE Zero Energy Ready Home 2022 Housing Innovation Award winning production home in the cold climate that achieved a HERS 9 with PV or HERS 42 without PV.

Case study describing a DOE Zero Energy Ready Home 2022 Housing Innovation Award winning custom for buyer home in the cold climate that achieved a HERS 35 without PV.

Case Study describing a DOE Zero Energy Ready Home 2022 Housing Innovation Award winning custom for buyer home in the cold climate that achieved a HERS -13 with PV or HERS 26 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2024 Housing Innovation Award winning custom home in the mixed-humid climate that achieved an ERI of 36 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2024 Housing Innovation Award winning production home in the mixed-humid climate that achieved an ERI of 36 without PV and an ERI of 4 with PV.

Case study poster describing a DOE Zero Energy Ready Home 2024 Housing Innovation Award winning custom home in the cold climate that achieved an ERI of 47 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2024 Housing Innovation Award winning custom home in the marine climate that achieved an ERI of 37 without PV and an ERI of -36 with PV.

Case study poster describing a DOE Zero Energy Ready Home 2024 Housing Innovation Award winning custom home in the mixed-humid climate that achieved an ERI of 30 without PV and an ERI of -9 with PV.

Case study poster describing a DOE Zero Energy Ready Home 2024 Housing Innovation Award winning custom home in the very cold climate that achieved an ERI of 36 without PV.

Description: Case study poster describing a DOE Zero Energy Ready Home 2024 Housing Innovation Award winning custom home in the cold climate that achieved an ERI of 30 without PV and an ERI of -20 with PV.

Description: Case study poster describing a DOE Zero Energy Ready Home 2024 Housing Innovation Award winning production home in the cold climate that achieved an ERI of 50 without PV and an ERI of 39 with PV.