Imagine, if you can, not getting a gas bill in the winter that reaches triple figures. Imagine a summer without sky-high electric bills.
Imagine if your home actually generated as much energy as it consumed.
Experts say that the technology exists to do just that. The challenge is building a home that is affordable and esthetically pleasing at the same time.
The next challenge is doing it in a place that does not have a lot of sun, but does have very cold winters and very hot summers.