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The smart grid isn't only about home energy reductions. Duke tests a data-intensive system that reduces peak load with a solar array, storage, and smart meters.
ZPower promising 40 percent longer battery life with its silver-zinc battery, which will make its debut with a large laptop manufacturer next year.
Debate begins on the best policy for green-collar jobs, and Lotus says it may build an electric sports car to rival Tesla's.
If my laptop drops dead one more time because the battery's out of juice, I may go postal. But a start-up named ZPower says it has the answer. Let's hope so.