Narrow your search
A gasification system is set to convert more than 90 percent of the Denver Zoo's waste into energy that can, among other things, fuel a rickshaw.
Primus Green Energy has developed a process to convert wood pellets and natural gas into a high-octane gasoline. But can they do it cheap enough?
Do you need coffee to get going every morning? So does this car, which this month broke a Guinness World Record "for vehicles run on gas from organic waste."
Genomatica looks to raise $100 million with a process for converting sugars, rather than oil, into chemicals used in everyday products.
The garbage hauler is investing in start-ups to wring valuable products from waste, including electricity, liquid fuels, and chemicals.
Genomatica partners with Waste Management to develop chemical products from syngas, the companies announce last week.
IST Energy's truck-sized Green Energy Machine will turn trash into electricity and heat at Air Force base in demo project.
Range Fuels, which uses a process that simultaneously produces ethanol and methanol from wood chips, says it's ready to sell biodiesel and ethanol for cars on a large scale.
Bloom Energy CEO K.R. Sridhar spells out how the fuel cell works.
The Obama administration is eager to promote green technologies, but some energy entrepreneurs, like Bill Davis, are still struggling to explain what they do.