Case Studies

Case study describing a four-square Concord home retrofitted by Building Science Corporation in Massachusetts.

Case study describing an alternative ground source heat pump (GSHP) cold-climate application in an attempt to reduce the installation cost of the ground loop portion by containing the entire loop beneath the basement slab.

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 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 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 38 without PV and -3 with PV.

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

Case study describing a new construction net zero energy home.

Case study describing a Habitat for Humanity zero net energy home in Denver.

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