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A study identifies early-stage technologies that could be combined to cut the cost of solar panels in half.
An inexpensive, polymer-based device breaks a record, reaching 10.6 percent efficiency.
ArrayPower says its “sequenced inverter” will cut the cost of solar by more than 10 percent.
A manufacturing method that uses light instead of heat wastes less energy and makes the cells more efficient.
By borrowing a trick from optical-fiber technology, a startup makes cells that trap light to create more electricity.
Adding solar cells to screens could prolong the battery life of many electronic gadgets.
Metamaterials that convert lower-energy photons to usable wavelengths could offer solar cells an efficiency boost.
Far-flung data centers could use otherwise unharvestable renewable energy for computation.