Renewable energy is taking off across the nation, but storing the energy is still a problem that is challenging companies to innovate, with solutions ranging from molten salt to ice.
Is renewable energy expensive or cheap? This is a question being debated in Paris this week. Though there's no simple answer, in South Africa the verdict is in — and it's a surprising one.
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.
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.
Several government buildings, including the Capitol and the State Department were affected. The problem was traced back to a transmission line in southern Maryland.
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.
Warren Buffet's MidAmerican Energy Holdings is in the middle of an acquisition of NV Energy. But consumer advocates think it might not be such a great deal
Nevada's Public Utilities Commission is moving forward with an investigation into whether Valley Electric Association can legally provide services to Creech Air Force Base. The state's largest utility,NV Energy, filed a complaint with the PUC in February arguing that Valley Electric is operating outside its legal service area. In Fall 2012, the US Department of Defense awarded Valley Electric ownership and operation of the distribution system at Creech, as part of a $23 million contract.
