Case Studies

Case study poster describing a DOE Zero Energy Ready Home 2024 Housing Innovation Award winning custom home in the cold climate that achieved an ERI of 43 without PV and an ERI of -2 with PV.

Case study poster describing a DOE Zero Energy Ready Home 2024 Housing Innovation Award winning custom home in the cold climate that achieved an ERI of 33 without PV and an ERI of 10 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 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 retrofit project in the cold and very-cold climate zones.

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 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 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 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 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.

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

Case study describing the origins and operation of a Kalamazoo-based home performance contractor.

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 performance of air-to-water heat pump systems in dry climates.

Case study describing a heating system retrofit in an existing apartment building complex which included advanced boiler controls and reduced heating gas consumption by about 20%.

Case study describing the maximization of hydronic system efficiency in single and multifamily buildings.

Case study describing the benefits of replacing resistance heating systems with mini-split heat pumps in cold and mixed-humid climates.

Case study describing a stand-off furring strategy that minimizes the physical connections to each existing wall stud, uses spray foam to encapsulate existing siding materials (including lead paint), and creates a vented rain screen assembly to promote drying.

Case study describing the best practices, costs, and savings associated with balancing steam distribution systems through increased main line air venting, radiator vent replacement, and boiler control system upgrades.

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.

Case study describing an upgraded home with an energy monitoring system designed to analyze the savings realized from the upgrades.