Oak Ridge National Laboratory – Zero Energy Building Residence Alliance (ZEBRA) Homes

Building Area: ~2800 s.f. each

Date of Completion: 2010

Type: New Construction

Location: Oak Ridge, TN

Budget: N/A

Challenge: Team with Schaad Companies, Tennessee Valley Authority, Oak Ridge National Laboratory, and the Department of Energy on a combination research project & education campaign to design 4 homes that will be used to test various bleeding-edge energy-saving technologies and design strategies.

Solution: The homes incorporate high efficiency lighting and appliances, water-to-air & water-to-water heat pumps. Ground-source heat exchange systems are used to reduce heating and cooling loads. Plumbing and mechanical uses are grouped around a central wall, minimizing energy loss within the houses. Energy is also reclaimed from gray water and exhaust air streams.

Each home uses a different envelope system strategy:

1: Structural Insulated Panel System (SIPS)

2: Advanced Framing

3: Dynamic Insulation

4: Exterior Insulation

Featured: February 2009 GreenBuilder Magazine