Case Studies

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 new home construction in the hot-humid climate, optimizing thermal enclosure, HVAC, water heating and lighting measures.

Case study describing a 20-unit community of energy-efficient duplexes in Massachusetts incorporating solar water heating and photovoltaics.

Case study describing a DOE Zero Energy Ready Home 2013 Housing Innovation Award Winner in Seattle, WA, that scored HERS 34 without PV.

Case study describing a DOE Zero Energy Ready Home 2013 Housing Innovation Award Winner in west Connecticut that scored HERS 39 without solar PV.

Case study describing a DOE Zero Energy Ready Home 2013 Housing Innovation Award Winner in Exeter, Rhode Island, that scored HERS 43 without PV.

Case study about a Zero Energy Ready Home 2013 Housing Innovation Award Winner construction project in the marine climate.

Case study describing a DOE Zero Energy Ready 2013 Housing Innovation Award Winner in Long Island, NY, that scored HERS 43 without PV.

Case study describing a DOE Zero Energy Ready Home 2013 Housing Innovation Award Winner in Herriman, UT, that scored HERS 40 without PV, -1 with PV.

Case study describing a DOE Zero Energy Ready Home 2013 Housing Innovation Award Winner in Ithaca, NY, that scored HERS 50 without PV.

Case study describing a DOE Zero Energy Ready Home 2013 Housing Innovation Award Winner in Ellenton FL that scored HERS 53 without PV and HERS 23 with PV.

Case study describing a DOE Zero Energy Ready Home 2013 Housing Innovation Award Winner in Phoenix, AZ that scored HERS 58 without PV and HERS 38 with PV.

Case study describing a DOE Zero Energy Ready Home 2013 Housing Innovation Award Winner in Frederick MD that scored HERS 43 without PV and HERS 28 with PV.

Case study describing a DOE Zero Energy Ready Home 2013 Housing Innovation Award Winning production home in Devens MA that scored HERS 35 without PV or HERS -37 with PV.

Case study describing a DOE Zero Energy Ready Home 2013 Housing Innovation Award Winner in Libertyville, IL that scored HERS 45 without PV.

Case study describing a DOE Zero Energy Ready Home 2013 Housing Innovation Award winning custom home in Devens MA that scored HERS 34 without PV or HERS -21 with PV.

Case study describing a DOE Zero Energy Ready Home 2013 Housing Innovation Award winning custom home in Downers Grove IL that scored HERS 35 without PV.

Case study describing a 4,763 ft2 certified Passive House that achieved HERS 27 without PV through the construction of R-54 walls that use ICF plus fiberglass cavity insulation, an R-100 vented attic, extensive air sealing and flashing, triple-pane windows, ductless heat pumps, and solar hot water.

Case study describing a DOE Zero Energy Ready Home 2014 Housing Innovation Award winner that scored HERS 43 without PV and 0 with PV.

Case study describing a DOE Zero Energy Ready Home 2014 Housing Innovation Award winner that scored HERS 38 without PV and -3 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 DOE Zero Energy Ready Home 2014 Housing Innovation Award winner that scored HERS 55 without PV and 15 with PV.

Case study describing a DOE Zero Energy Ready Home 2014 Housing Innovation Award winner in the marine climate that scored HERS 43 without PV and 13 with PV.

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

Case study describing a retrofit project in Maryland.

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

Case study describing a deep energy renovation of a home in the marine climate.

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

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

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

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

Case study describing a retrofit project in the marine climate.

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

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

Case study describing a builder in Georgia that designs energy-efficient homes for a green community, yielding homes with HERS scores as lowas 59 and electric bills as low as $50 a month.

Case study describing new home construction in the marine climate that achieved 50% savings over the 2004 IECC.

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.

Case study describing a new construction building project of 20 homes that earned HERS scores that represent greater than 50% energy savings in heating and cooling over the 2004 IECC.

Case study describing two new construction projects in Florida built to be net zero energy homes.

Case study describing the elimination of excessive humidity in the attic of a multi-floor, single-family home that was causing condensation and water damage along the roof and eaves.

Case study describing techniques used to prevent thermal bypass in new homes.