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By borrowing a trick from optical-fiber technology, a startup makes cells that trap light to create more electricity.
The test of a new lining that can take the heat of fusion could be crucial for a planned reactor in France.
Can a garden hose to the stratosphere really keep the planet cool?
The Web giant reveals its energy use for the first time.
A microfluidics approach could be ideal for harnessing electricity from footsteps.
A new estimate suggests there’s 80 percent less gas than previously thought. That may still be plenty.
Cobalt hasn’t been mined in the U.S. in 30 years, but the blue metal’s crucial role in energy and communications technologies is changing that.
The company thinks adding solar-thermal technology to its natural-gas plants will make them run more cheaply and efficiently
Startup BrightSource announces a new system that could allow future solar plants to run at night.