Case Studies

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 2024 Housing Innovation Grand Award winning affordable home in the cold climate that achieved a HERS 36 without PV.

Case study describing a DOE Zero Energy Ready Home 2024 Housing Innovation Grand Award winning production home in the mixed-humid climate that achieved a HERS 4 with PV or HERS 36 without PV.

Case study describing a DOE Zero Energy Ready Home 2024 Housing Innovation Grand Award winning custom home in the mixed-humid climate that achieved a HERS -9 with PV or HERS 30 without PV.

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

Case study describing a DOE Zero Energy Ready Home 2024 Housing Innovation Grand Award winning custom home in the mixed-marine climate that achieved a HERS -24 with PV or HERS 33 without PV.

Case study describing a DOE Zero Energy Ready Home 2024 Housing Innovation Grand Award winning production home in the cool-dry climate that achieved a HERS -1 with PV or HERS 41 without 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.

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

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

Case study describing one of three deep energy renovations of occupied affordable homes.

Case study describing analysis of pre-retrofit utility data from 1,166 houses to help determine energy savings on a community-scale.

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

Case study describing a whole-house, deep energy retrofit project in the marine climate.

Case study describing an energy efficient retrofit project in hot-humid climates.

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

Case study describing a retrofit project in the hot-dry and mixed-dry climate zones.

Case study describing a retrofit project in the hot-dry and mixed-dry climate zones.

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

Case study describing a retrofit project in the marine climate.

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

Case study describing a new construction project in Florida, designed to produce as much energy as it consumes.

Case study describing a new home construction project in Florida.

Case study describing a new home construction project in the hot-humid climate.

Case study describing the family-run Treasure Homes that achieved a HERS rating of 46 without PV on its prototype “Gem” home, located on the blustery shores of Lake Michigan in northern Indiana.

Case study describing the testing of a 30-home, high-performance, energy-efficient, sustainable community.

Case study describing a new construction net zero energy home.

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

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

Case study describing a home builder that has refined its home designs to achieve HERS scores of 49 to 56 on 40 to 70 homes per year.

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 a building project in the hot-dry and mixed-dry 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 production builder that achieves HERS scores of 60, compared to 85 for other builders that build new homes to Florida code.

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

Case study describing the origins and growth of a Los Angeles-based home performance company that has increased their annualized revenues by nearly 8 times in 2 years of business.

Case study describing the growth and performance of a Rochester-based home energy performance company that increased revenues by nearly 2000% in 1 year.

Case study describing the growth of the home performance division of a Oregon-based remodeling company that saw revenues increase by 109% per year from 2006 to 2012.

Case study describing a package of energy- efficiency measures for new manufactured homes in the Pacific Northwest, including triple-pane highly efficient windows.

Case study describing how a properly designed duct system is essential for keeping a home comfortable, managing indoor air quality, and maximizing the performance of heating and cooling equipment.