Tests prove the feasibility of using nuclear reactors to provide electricity on the moon and Mars.
Electrodes made of carbon-silicon nanowires could boost the life and performance of lithium-ion batteries.
A high-power cell uses materials already on the market and operates at lower temperatures.
The DOE funds a company that recycles plug-in vehicle batteries.
A supercritical diesel engine could increase efficiency and cut emissions.
Research centers conceived to speed energy-related research are facing a tough battle in Congress.
Nordic Windpower's two-bladed rotors depart from conventional wind-power design.
The solar industry says incremental advances have made transformational technologies unnecessary.
A startup snags funding to start early work on a low-budget test reactor.
A simpler design could reduce the cost of solar power generated by concentrating sunlight on Stirling engines.