Think of solar greenhouse heaters as a way to supplement existing heating systems. They're out there, but some assembly may ...

Most of us will immediately think of solar cells and other exotic solar energy techniques. But [Becky] shows how to make a hot air balloon using ... wood and using solar panels to charge a battery ...

Installing solar panels is a smart investment that can increase your home's value, reduce your energy bills, and help protect the environment. A recent CNET survey found that 78% of surveyed US ...