![Affordable zero-energy homes - Over the past five years, ORNL engineer Jeff Christian has directed the design and construction and of five highly energy-efficient houses for low-income families. His goal is an affordable zero-energy home that the average American can manage easily.](https://webarchive.library.unt.edu/eot2008/20081205070515im_/http://www.ornl.gov/ornlhome/images/front_page/christian_news.jpg)
Affordable zero-energy homes
Over the past five years, ORNL engineer Jeff Christian has directed the design and construction and of five highly energy-efficient houses for low-income families. His goal is an affordable zero-energy home that the average American can manage easily. (more)