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Its entrance to the market could help make solar power cheaper.
The devices could help stabilize the grid, and make charging electric cars cheaper.
New direct-drive turbines promise to lower the cost of offshore wind energy.
GE is pushing the smart grid and thin-film solar, but don’t expect new kinds of nuclear reactors.
Regulations, privacy and security concerns, and other issues could hold back developments.
Without a radically expanded and smarter electrical grid, wind and solar will remain niche power sources.