electricity

What if there were a way to take the waste heat that spews from car tailpipes or power plant chimneys and turn it into electricity? An entrepreneur says something called thermoelectrics is the key.

The federal rules will deal a big blow to some energy sectors — especially coal. The change won't be so hard for states that have moved to cut emissions. But for others it will be more difficult.

The ability to store energy could revolutionize the way electricity is made and used. But for many utility companies and regular folks, energy storage is still too costly and difficult.

Deaths in the U.S. from lightning strikes are up in 2015, compared with recent years. A convertible won't save you. Get inside at the first rumble of thunder, and stay away from plugged-in appliances.

With a sleek surface and a depth of only about 7 inches, the Powerwall can be mounted on a garage wall or another surface, indoors or outside.

The panels, funded by government grants, are helping thousands of tribal residents take advantage of the everyday luxuries enjoyed by other Americans — like turning on lights or storing food.

Some 77 million Indian households depend on kerosene lamps and candles when the sun goes down. Green entrepreneurs are looking to spread the light with affordable solar panels.

More homeowners are cutting energy costs by installing solar panels, due in part to leasing programs that require no up-front investment. Leasing means less hassle, but may also save you less money.