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Khosla among investors in maker of permanent magnet generators for wind turbines believed to have "potential to disrupt" wind industry.
An anchored Hywind prototype developed by Statoil will undergo two years of testing. The company is looking to install more floating wind turbine test farms in possibly Scotland or Maine.
Now in use by the military, intelligent earplugs that automatically filter out the clamor when it reaches dangerous levels are being adapted for offshore drilling and other noisy jobs.
Five sites will be getting 4-megawatt offshore wind turbines, whose rotor diameter is equivalent to the length of a football field, including the end zones.
Plus: carbon regulations, a hybrid battery for cars, Mitt Romney's case for auto bankruptcy, CEO lobby for carbon regulations, and Obama calls for quick action.
Showdown in the desert: BrightSource's power tower solar power plant design looks to displace traditional mirrored trough designs.