Case Studies

Case study poster describing a DOE Zero Energy Ready Home 2019 Housing Innovation Award winning production home in the cold climate that achieved a HERS score of 8 with PV and 43 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 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 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 custom homes for buyer in the cold climate that used 2x8, 16-inch on-center walls, R-84.6 roof insulation, and triple-pane windows to achieve a HERS score of -13 with PV, and 36 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2020 Housing Innovation Award winning attached home in the cold climate that used R-61, 16-inch blown cellulose attic insulation, triple-pane windows, and a 17 SEER central heat pump to achieve a HERS score of 32 with PV and 48 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2020 Housing Innovation Award winning custom homes for buyer in the cold climate that used 2x6 on-center walls, R-50 16-inch vented roof insulation, and a 19 SEER AC system to achieve a HERS score of 46 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2020 Housing Innovation Award winning custom spec homes in the cold climate that used 2x6, 16-inch on-center walls, R-72 unvented attic insulation, and 16.1 SEER mini-split heat pumps to achieve a HERS score of 19 with PV and 39 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2020 Housing Innovation Award winning affordable home in the hot-humid climate that used 2x6, 24-inch on-center walls with 5.5-inch open-cell spray foam insulation and OSB sheathing, triple-pane windows, and 20-inch, R-60 blown-in cellulose...

Case study poster describing a DOE Zero Energy Ready Home 2020 Housing Innovation Award winning custom for buyer homes in the cold climate that used triple-pane windows and two 19 SEER ducted mini-split heat pumps to achieve a HERS score of -97 with PV and 37 without PV.

Case study poster describing a DOE Zero Energy Ready Home 2020 Housing Innovation Award winning custom for buyer homes in the cold climate that used R-44 insulation in the double walls, R-60 blown fiberglass attic insulation, and triple-pane windows to achieve a HERS score of 14 with PV and 44...

Case study poster describing a DOE Zero Energy Ready Home 2020 Housing Innovation Award winning affordable home in the cold climate that used a SIP shed roof, triple pane windows, and a 26.1 SEER ductless heat pump to achieve a HERS score of -20 with PV and 35 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 poster describing a DOE Zero Energy Ready Home 2020 Housing Innovation Award winning attached home in the cold climate that used 2x6, 24-inch on-center walls and R-50 blown fiberglass attic insulation to achieve a HERS score of 29 with PV and 50 without PV.

Case study describing a DOE Zero Energy Ready Home 2020 Housing Innovation Award winning affordable home in the cold climate that used above-grade walls filled with 5.5 inches of open-cell spray foam and sheathed with an R-6.5 insulated coated OSB sheathing, providing a continuous air barrier and...

Case study describing a DOE Zero Energy Ready Home 2020 Housing Innovation Award winning custom for buyer home in the cold climate that used triple-pane windows, a hydronic radiant floor heating system, an electric vehicle charging station, and 7.3kW of rooftop-mounted solar panels to achieve a HERS...

Case study describing a DOE Zero Energy Ready Home 2020 Housing Innovation Award winning attached housing home in the cold climate that used high insulation levels in the attic, walls, and under the slab, with ENERGY STAR appliances, and solar PV panels to achieve a HERS score of 29 with PV and 50...

Case study describing a building project in Ohio.

Case study describing a gut rehab of a multifamily, masonry building.

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

Case study describing a deep energy retrofit, turning an old school into 12 high-end apartments in Greenfield, MA.

Case study describing a multifamily retrofit project in a cold climate.

Case study describing a cost-effectively reducing energy use by over 50% in an existing home.

Case study about a multifamily retrofit project using individual heat recovery ventilators in 10 separate building units.

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

Case study describing an energy efficient renovation in the cold climate.

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

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

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

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

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 Pulte Homes and their pursuit of the DOE builders challenge, building more than 780 homes that comply to or exceed the energy standards required.

Case study describing Schneider Homes and their experience while pursuing an energy efficiency tax credit for 37 homes they built at Miller Creek.

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

Case study describing Tindall Homes and the energy efficient features they took advantage of when building 20 luxury homes, that subsequently used 40% less energy then code requirements.

Case study describing a new construction net zero energy home.

Case study describing a new construction project using high R-value enclosures with a hybrid insulation approach.

Case study describing 50% energy saving projects for new multifamily homes in cold climates.

Case study describing a new townhome construction project designed to achieve a HERS score of 40.

Case study describing the Green Home 3 project, which achieved a 44% whole-house energy savings over the Building America New Construction B10 Benchmark, DOE Zero Energy Ready Home certification, and National Green Building Standard Gold-level certification.

Case study describing the design and testing of 10 high-performance homes in Farmington, Connecticut.

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 technologies that can be implemented in new manufactured homes to increase comfort and realize energy savings.

Case study describing a high performance test home incorporating best practices for energy efficiency.

Case study describing a new construction building project of 20 luxury homes in northern New Jersey that were more energy efficient than ENERGY STAR and met the 50% energy savings requirements of the federal tax credit for new homes.