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No other means of storing energy may be able to reach the scale required to run Germany on solar and wind power.
A new design shrinks the device connecting solar panels to the grid, cutting installation costs.
In the short term, tariffs will help U.S. solar panel makers. But they could have unintended consequences.
ArrayPower says its “sequenced inverter” will cut the cost of solar by more than 10 percent.
Astrowatt’s wafer-making method could mean cheaper solar power.
Startup Natcore says its process could reduce costs and enable new nanostructured designs.
The company had a head start on technology that allows solar cells to be manufactured more cheaply, but lost out to Chinese competitors.
Bill Joy believes he knows what’s wrong with solar innovation, and how to fix it.