New windows reduce drafts and noise, and they are easier to clean. But they aren’t cheap. These tips will help you shop wisely.

We may earn revenue from the products available on this page and participate in affiliate programs. Learn More › Windows can have a significant impact on a home’s energy efficiency. When they’re ...

Well, it’s likely not an energy solution for single-family homes. But skyscrapers built with these light-collecting windows could generate a lot of electricity.

A new Danish research breakthrough could make buildings far more energy-efficient in the future. Researchers from Aarhus ...