Nuclear: Nuclear is the energy source for the majority of electric power generation for the long term.

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In this case, however, the front electric motor-which is now supplied with energy by the TDI engine-operates exclusively as a generator and a power source for the electric motor at the rear.

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Wind and solar as a source of renewable energy is a goal that most electric-generating companies, including General Electric (GE), Duke Energy (DUK), and Northwestern Energy (NEW), are hotly pursuing.

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The laptops will have a low-tech independent source of energy, so they can be used in towns with little or no electric power.

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Bob Gibson, VP for market intelligence at the Solar Electric Power Association (SEPA), pointed to one large source of growth for the industry: utilities expanding their energy mix to include solar.

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