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One of the largest solar energy plants in the world went on line in Portugal this winter.
A startup’s silicon solar cells save on costs by using less material.
Recent efforts show hope for regional transmission planning for renewable power.
Adding solar cells to screens could prolong the battery life of many electronic gadgets.
Four cities pledge to better manage overall energy use and cut greenhouse emissions.
Abound Solar says it has a simpler process to make cadmium-telluride solar cells.
GE is pushing the smart grid and thin-film solar, but don’t expect new kinds of nuclear reactors.
Technical advances jump-start electric cars, wind turbines, and solar power.
The first prototype cell to use photonic crystals looks promising.