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.

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)