Solar panels probably won't erase your bill, but they can still save money. How much depends on several factors. Some or all of the mortgage lenders featured on our site are advertising partners of ...

Fixed rate electric plans offer convenience, protection and predictability. Variable-rate plans offer flexibility and the potential of savings. Here's how to know which is better for you. Stephen J.

Illustration: Dr. Ville Kaajakari's shoe power generator. Dr. Ville Kaajakari, assistant professor of electrical engineering at Louisiana Tech University, is being featured by MEMS Investor Journal, a ...