Case Studies

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 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.

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 44 without PV and an ERI of 15 with PV.

Case study poster describing a DOE Zero Energy Ready Home 2024 Housing Innovation Award winning affordable home in the mixed-humid climate that achieved an ERI of 44 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 53 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2024 Housing Innovation Award winning production home in the hot-dry climate that achieved an ERI of 39 without 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 43 without PV and an ERI of -2 with 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 42 without 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 33 without PV and an ERI of 10 with PV.

Case study poster describing a DOE Zero Energy Ready Home 2024 Housing Innovation Award winning production home in the hot-humid climate that achieved an ERI of 49 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 44 without PV and an ERI of 2 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 37 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 54 without PV and an ERI of -24 with 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 49 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 33 without PV and an ERI of -24 with PV.

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 41 without PV and an ERI of -1 with PV.

Case study poster describing a DOE Zero Energy Ready Home 2024 Housing Innovation Award winning production home in the mixed-dry climate that achieved an ERI of 41 without PV and an ERI of -1 with PV.

Case study describing a DOE Zero Energy Ready Home 2017 Housing Innovation Award winning custom for buyer home in the hot-dry climate that achieved a HERS score of -92 with PV and batteries and 43 without PV.