Case study describing a year-long evaluation on residential hot water heating systems in a laboratory environment, regarding the evaluation of two residential electric heat pump water heaters (HPWHs), a solar thermal system utilizing a polymer glazed absorber, and a high efficiency natural gas...
Case study describing the installation four high-efficiency natural gas water heaters n single-family homes and their savings potential, installed efficiencies, and abilities to meet household demands.
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 the performance of tankless water heaters, which can deliver large quantities of hot water under changing load conditions like storage water heaters, but without suffering the standby loss (tank heat loss) of storage water heaters.
Case study describing a DOE Building America 2013 Top Innovation community-scale project where solar water heaters generated enough hot water per year to recoup the cost of the system within 4 to 6 years.
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 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 in the marine climate that scored HERS 43 without PV and 13 with PV.
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.