A zero energy home (ZEH) is a home that combines state-of-the-art, energy-efficient construction and appliances with commercially available renewable energy systems, such as solar water heating and solar electricity. The combination results in a home that produces its own energy – as much or more than it needs. Even though the home might be connected to a utility grid, it has net zero energy consumption from the utility provider.

 

Zero Energy Homes optimize and include the following design features:

 

Climate-specific design

Passive solar heating and cooling

Energy-efficient construction

Energy-efficient appliances and lighting

Solar water heating system

Small solar electric system

 

These homes have a number of advantages:

 

Improved comfort – an energy-efficient building envelope reduces temperature fluctuations

Reliability – a Zero Energy Home can be designed to continue functioning even during blackouts

Energy security – a home that produces energy protects its owner from fluctuations in energy prices

Environmental sustainability – a Zero Energy Home saves energy and reduces pollution

 

The U.S. Department of Energy has partnered with building professionals and organizations to further develop the Zero Energy Homes concept. To date, only a few prototype Zero Energy Homes have been constructed and researched.