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.
A startup unveils a high-yield process for making fuel from carbon dioxide and sunlight.
Fluid extracts more heat out of low-temperature wells.
Dye-doped DNA nanofibers can be tuned to emit different colors of light.
ExxonMobil invests $300 million in Synthetic Genomics to develop algae biofuel.