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Doubling the efficiency of solar devices would completely change the economics of renewable energy. Here is a design that just might make it possible.
The technology could make it cheaper to use wind and solar power and to switch to natural gas from coal.
Solar manufacturers are eager to implement several new technologies that could make solar power cheaper, and the panels easier to make.
Thermal-power plants that store heat for cloudy days could solve some of the problems with solar power.
With no one buying new equipment, solar companies are looking to make the best of existing technology.
A study identifies early-stage technologies that could be combined to cut the cost of solar panels in half.
SolarCity’s new battery system might help solar become a significant source of electricity.
The government’s energy research agency is spending $30 million to demonstrate cheap solar power that’s available day and night.