Most Earth-Friendly Home Ever Built?

Jan. 20, 2015 - The group Habitat for Humanity is building six homes in Washington, D.C., that are not only affordable but also energy efficient. Known as passive houses, these homes meet rigorous standards through low-energy construction practices and energy-efficient appliances. Whereas the average household in the area spends up to $1,500 annually on energy, passive-house owners can expect to reduce those costs by up to 90 percent.

Read this article to learn more about Passive Houses.