Photovoltaic cells that convert heat, not sunlight, to electricity may turn out to be the solution for capturing all the energy we waste through heat.

Nanotechnology makes the seemingly impossible true: Trapping the sun's heat for release later, whenever and wherever you need it.

As an eco-fuel, hydrogen has numerous advantages, including clean emissions. Storing hydrogen, however, has been proven difficult and dangerous--until now. The DOE has achieved a nanotech breakthrough that will allow for the safe storage and transport of hydrogen.

New research suggests the whole world could switch to renewable energy sources using current tech in just 20 to 40 years. It would cost no more than current energy, and would have big economic and eco payoffs. Let's do this.

Back in February 2010, Bloom Energy hit the news in a big way with its mysterious fuel-cell "Boxes" tech powering tech giants like Amazon. Now it's trying a new thing with "Electrons," selling its clean energy to customers without them needing to buy hardware.

Nuclear submarine technology (truly cold war terror science) may one day have peaceful payoffs: A French firm is planning modified submarine nuclear power stations, able to provide clean juice to remote communities.

Scientists have known about pyroelectricity for years, but it's always been too inefficient to be useful. A new breakthrough changes this, making it plausible to extract power from your car exhaust.

New technological breakthroughs lead to larger tasks--and big environmental benefits.

Households near roads will sigh sadly at this, car noise enthusiasts will hum: The Senate just passed (unanimously) a bill making it mandatory for all electric cars to emit some noise when operating.

20% of the world's electrical could be powered by wind inside 20 years--with China leading the way. Do we believe it?