Wind-turbine designers are warming up to an alternative to the three-bladed rotors that have been an industry standard for the past quarter century.
At the current rate of construction, there won’t be enough nuclear plants worldwide to meet critical carbon emissions targets.
Solar City’s acquisition of a solar-panel startup could help it lower installation costs and produce inexpensive solar power, but it’ll need more production capacity.
New technology could be twice as efficient at converting sunlight to electricity.
Panasonic reveals a design that surpasses a 20-year-old mark for solar cell efficiency.
The workhorse of conventional solar power, silicon solar cells, could soon be cheap and efficient enough to beat fossil fuels.
U.N. negotiations are going nowhere, and greenhouse-gas emissions are soaring. It’s time to move on.
Huge differences in renewable energy and natural gas potential influenced the EPA’s proposed carbon regulations.
A new way to make the most efficient and powerful types of solar cells could help solar power compete with fossil fuels.
The EPA’s emissions targets will accelerate the use of natural gas in states that have resisted alternatives to coal.