The technologies behind the battery packs for the GM Volt are being tested and could be ready within a year.
Superconducting cables could make power-grid infrastructure more secure.
A new way to make hydrogen from corn or potatoes could make fuel-cell vehicles more practical.
A new material prevents overheating, making lithium-ion batteries safer for use in vehicles.
The genetically-modified plants break down their own cellulose, making it possible to use waste biomass to produce ethanol.
A new roof-mounted system that concentrates sunlight could cut the price of photovoltaics.
A leading chemist says that a better understanding of photosynthesis could lead to cheap ways to store solar energy as chemical fuel.
Nanoparticles with a completely new shape may lead to cheaper catalysts that could make many experimental-energy technologies more practical.