New Jersey's concrete house
Team New Jersey from Rutgers University decided to build its house largely out of concrete, which makes maintenance easier than traditional materials. The concrete is also "thermal mass" which can store solar energy. As seen here, student teams need to work long hours to construct their homes in Washington, D.C., where they will be on display and judged over the next 10 days.
September 23, 2011 7:45 AM PDT
Photo by: Department of Energy
| Caption by: Martin LaMonica
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