Making solar power competitive with coal | KurzweilAI
This 25-micrometer-thick peel-off film of silicon, used to make solar  cells, has a metal backing that keeps it from breaking (credit:  Astrowatt)
By the end of the decade, U.S. manufacturers could make solar panels  that are less than half as expensive as the ones they make now.
At  52 cents per watt, that would be cheap enough for solar power to  compete with electricity from fossil fuels, according to a new study by  MIT researchers in Energy & Environmental Science. Assuming  similar cost reductions for installation and equipment, solar power  would cost six cents per kilowatt-hour in sunny areas of the U.S. — less  than the 15 cents per kilowatt-hour average cost of electricity in the  U.S. today.
Improvements would include an alternative to the  wasteful process now used to make silicon wafers, methods of handling  thin wafers to avoid breaking,  installation cost-reduction, and  improved light absorption, such as using nanostructured layers.

Making solar power competitive with coal | KurzweilAI

This 25-micrometer-thick peel-off film of silicon, used to make solar cells, has a metal backing that keeps it from breaking (credit: Astrowatt)

By the end of the decade, U.S. manufacturers could make solar panels that are less than half as expensive as the ones they make now.

At 52 cents per watt, that would be cheap enough for solar power to compete with electricity from fossil fuels, according to a new study by MIT researchers in Energy & Environmental Science. Assuming similar cost reductions for installation and equipment, solar power would cost six cents per kilowatt-hour in sunny areas of the U.S. — less than the 15 cents per kilowatt-hour average cost of electricity in the U.S. today.

Improvements would include an alternative to the wasteful process now used to make silicon wafers, methods of handling thin wafers to avoid breaking,  installation cost-reduction, and improved light absorption, such as using nanostructured layers.

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    Solar could replace coal and gas.
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