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The company thinks adding solar-thermal technology to its natural-gas plants will make them run more cheaply and efficiently
Department of Energy funds companies developing superconducting, “gearless” turbines.
Quantum-dot cells designed with two layers open potential for higher efficiencies.
An underground “heat nest” design avoids the need to fracture the rock.
Not green at all, reports a study suggesting that the methane released by fracking and drilling makes it worse than coal.
High crude prices, cheap natural gas, and U.S. demand boost heavy oil profits—and greenhouse gases.
Feed-in tariffs make the Canadian province a bright spot for photovoltaics.
The device uses thermoacoustics for greater efficiency.
Even without an economy-wide price on carbon, many businesses are going green both as a way to save money and as a hedge against the rising cost of fossil fuels.
Abound Solar says it has a simpler process to make cadmium-telluride solar cells.