President Bush thinks weeds can supplant oil from the Middle East. Is he out in left field?
A new type of ultracapacitor could eventually have you throwing out your conventional batteries.
New technologies are transforming an old workhorse, promising all-electric lawnmowers and hybrid military vehicles.
But President Bush's energy initiative has too little in it to relieve the oil crunch, say experts.
Experts say too much funding is going into hydrogen at the expense of near-term technologies.
Solid-state lighting is mounting a challenge to light bulbs.
Novel, shape-changing batteries could lead to energy-saving aircraft wings and helicopter rotors.
If Plug Power, a maker of hydrogen fuel cells, succeeds, it will be in an unexpected market.
Automakers look to thermoelectrics to help power tomorrow's vehicles.
New production methods could transform the niche technology.