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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.
The company thinks adding solar-thermal technology to its natural-gas plants will make them run more cheaply and efficiently