Solar energy has a reputation as being a clean energy source but hasn't earned it — at least not up until now. That's because in a darkly ironic truth, the power used to manufacture solar panels still comes mainly from electricity generated by fossil fuels. But a new study from Stanford researchers says that the balance may be tipping: all the solar panels online around the world last year produced enough energy to make up for the energy it took to make them, researchers are able to say with more than 50 percent confidence.
via The Verge - All Posts http://www.theverge.com/2013/4/2/4174204/solar-panels-finally-generate-more-energy-than-they-consume
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