Sometimes it's not the patents but the money and technical know-how that are the biggest obstacle to expanding the commercialization of electric vehicles.
An urban plan for Paris could reduce the city's greenhouse gas emissions by up to 75 percent in 2050.
California is quickly becoming a leader in renewable energy storage development as the state sets a climate goal of obtaining 50 percent of power from clean sources.
At the Detroit Auto Show, the Bolt was out of the blue.
A comparison chart shows just how big.
The car company hopes free patents will encourage innovation from other automakers.
From tattoo batteries to paint that powers a car, from floating solar farms to wires made from DNA, catch up on the year's most exciting energy news.
Falling oil prices left renewable energy’s immediate future in limbo, but solar power is expanding.
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