The first prototype cell to use photonic crystals looks promising.
Nanoporous silicon that soaks up ions without self-destructing can make better batteries.
A mechanical device mimics how fish harness energy from water flow.
Recent efforts show hope for regional transmission planning for renewable power.
A design that draws on jet engine technology could halve the cost of generating electricity from wind.
Ener-G-Rotors' system harvests energy at lower temperatures.
Jet fuel made from an inedible plant will power an aircraft.
A project proves that millions of tons of the sequestered gas can be safely monitored.
The new Mini borrows a drive system from a high-performance electric sports car.
A more efficient generator could convert more of the wind's energy into electricity.