A poorly planned system can also create major complications.

Ask families in Germany and the UK what happens when more and more supposedly “cheap” solar and wind power is added to the national power mix, and they can tell you by looking at their utility bills: ...

Perovskite solar cells shouldn’t work as well as they do—but they do. Scientists have now discovered that defects inside the material actually help, creating networks that separate and guide electric ...

Imagine if Americans could buy inexpensive and small solar panels to hang outside their homes and plug into a regular wall outlet to shave their electric bills. This is no fantasy. The technology, ...

The California-based nonprofit is now accepting pre-orders for plug-in solar kits it says cost exactly what it pays to buy, ...

Chinese panels are now so affordable that businesses and families are snapping them up, slashing their bills and challenging utilities. What’s happening in suburban Cape Town is being repeated at ...