Buoy-equipped arms connected to a generator could produce cheap electricity at sea.
Energy savings and flexibility set this portable LED device apart.
An 18-hole floating course hopes to boost Maldivian economy while preserving the nation's ecosystem.
A novel battery produces electricity in places where freshwater meets saltwater.
Solar panels, wind turbines, batteries and diesel-thermal generators power this ship.
A new engine has the potential to triple the fuel efficiency of hybrid vehicles.
An eco-friendly method could extract millions of barrels of oil and tar trapped in sand.
A pilot program is demonstrating an unusual method for storing energy from sunlight and wind.
The system will eventually produce a thermal map of the entire city of Boston.
Next time you're at the store, you might want to take a second look at your emerald-green broccoli and super-fresh red meats.