A new MIT report says that much more effort is needed to develop and test technology that will make clean-coal power plants economical and practical.
A veteran venture capitalist's new energy.
Arthur Nozik believes quantum-dot solar power could boost output in cheap photovoltaics.
Solar cells, camera lenses, and LEDs could benefit from new antireflection coatings.
Carbon nanotubes could help make nanoparticle-based solar cells more efficient and practical.
One of the largest solar energy plants in the world went on line in Portugal this winter.
A secret, fast-charging, powerful battery.
Plasma turns waste to ethanol.
The potential of solar energy remains unfulfilled.
A new engine design could significantly improve fuel efficiency for cars and SUVs, at a fraction of the cost of today's hybrid technology.