This is an excerpt from EERE Network News, a weekly electronic newsletter.
International Builders Show Showcases Energy-Efficient Homes
Two highly energy-efficient model homes—the "New American Home" and the "2004 NextGen Demonstration Home"—are now being showcased at the International Builders Show, underway at the Las Vegas Convention Center in Las Vegas, Nevada.
The New American Home is designed for Nevada's hot and dry climate and cuts by half the energy used for air conditioning and water heating. The home achieves its energy savings through insulated concrete forms, used in the foundation and exterior walls; windows that limit solar heat gain; and highly efficient structural insulating panels (SIPs), which form the roof. The house is cooled with high-efficiency air conditioners and is ventilated with a heat-recovery ventilator, which cools incoming air using the exhaust air from the home. DOE's Building Technologies Program and DOE's National Renewable Energy Laboratory (NREL) contributed to the project. The home is in the Sahara Lake community, just west of downtown Las Vegas. See the NREL press release.
The NextGen Demonstration Home is actually in the parking lot of the Las Vegas Convention Center, and features such energy-saving technologies as Icynene spray insulation, radiant barrier roof sheathing, low-E windows, and a high-velocity heating and cooling system. Tankless water heaters produce hot water on demand for the house's low-flow plumbing fixtures, and Energy-Star-rated appliances save electricity throughout the house. Once the home is placed on a permanent foundation, it is expected to earn an Energy Star label as well. All American Homes built the NextGen home in association with the Partnership for Advancing Technology in Housing. See the NextGen04 Web site.
The International Builders Show runs through January 22nd.