From custom dwellings to affordable student-built housing, some of the nation’s most energy-efficient homes were honored last month as winners of the 2010 EnergyValue Housing Awards (EVHA).

The annual award, administered by the NAHB Research Center to challenge builders to elevate standards for energy-efficient construction and foster the adoption of energy-efficiency principles, recognized 20 companies who voluntarily incorporate energy efficiency into all aspects of new-home construction by utilizing products and technologies such as solar power and hot water, ultra-efficient building techniques, and energy-saving appliances.

Finalists were selected from three climate regions (cold, moderate, hot) and five project categories (affordable, custom/demonstration, factory-built, multifamily, production). To view the seven Gold winners, click on the slide show above. For a list of all finalists, click here.

Jennifer Goodman is Senior Editor, Online for EcoHome.