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Doubling the efficiency of solar devices would completely change the economics of renewable energy. Here is a design that just might make it possible.
Falling costs are making fuel-cell vehicles look like a plausible alternative to conventional cars.
A high-power circuit breaker could finally make DC power grids practical.
A Caltech researcher thinks arrays of tiny wind turbines could produce cheaper power than big ones.
Solar manufacturers like Suntech are struggling. Hundreds need to die for the industry to recover.
A material described in Nature could help lead the way to high-efficiency, inexpensive solar cells.
A government research facility uses a megawatt-scale simulator and supercomputer to test futuristic grid technologies without disrupting today’s grid.
New technology, including better control algorithms and communications, is improving the performance of wind turbines.
The IPCC says we can emit a trillion tons of carbon and still avoid major warming. We’ll emit much more.