Hurricane Irene didn’t kill wave energy

With all the damage and destruction wrought by Hurricane Irene recently, one can't help but wonder from a green technology perspective how all of those clean energy installations in the storm’s wake fared.

High altitude wind energy gets analyzed

Wind turbine power technology has certainly come a long way over the centuries.

Wave-powered generator ready for prime time?


SDE Energy, the manufacturer of a wave-powered hydraulic generator, claims its technology can produce electricity cheaper than other renewables.

Bacteria generate electricity from waste


Five percent of the electricity consumed in the United States is used to power our water infrastructure.

Cutting soot emissions could be climate quick fix

Reducing soot emissions from diesel engines and other sources could be the fastest, most economical way to slow the melting of Arctic sea ice, researchers say.

Nitrogen in rocks could help counter climate change

Researchers have discovered that forest trees can tap into the nitrogen found in rocks, boosting their growth and allowing them to take up more carbon dioxide from the atmosphere.

Bringing advanced biofuels to the real world

"Advanced biofuels," as defined by the Energy Independence and Security Act, are renewable fuels that produce at least 50 percent less greenhouse gas emissions than the fossil fuels they replace.

New alloy could split water to make fuel

A team of Kentucky scientists has found a way to 'tweak' an inexpensive semiconductor to generate hydrogen from water using sunlight.

Eco-Helix turns waster heat into electricity

According to the Department of Energy and Climate Change, households in the United Kingdom use the equivalent of 7.6 million tons of oil per year to heat water. 



Audi Urban EV concept has nice curves

German automaker Audi is set to unveil what they're calling a completely new kind of concept car that's so innovative they've yet to actually build it. 



Navy missile test base ditching diesel


Whether you're a fan of the U.S. military or not, there's no denying its role in driving cleantech innovation and deployment, from embracing solar power on the front lines to testing energy-efficient lighting systems closer to home. 



Hydrogen fuel cells powered by sewage


Southern California drivers who are on the transportation cutting edge - tooling around in hydrogen fuel cell-powered vehicles - will soon have a new option for filling up. 



Alaska’s tides scouted for clean energy

Last summer, we reported on the progress of a novel hydrokinetic river turbine on the Yukon River. 



Army looks to private sector on renewables

Facing rising fuel prices and energy security challenges, the U.S. Army has committed to meeting a quarter of its energy needs with renewable resources by 2025, and to achieving net zero energy use by 2030. 



Melting permafrost could ramp up global warming

Thawing permafrost could release billions of tons of carbon into the atmosphere by the end of this century, further accelerating global warming.

China gets serious about solar energy

Earlier this month, the Chinese government announced plans to establish its first nationwide feed-in tariff (FIT) for solar projects. 



Sun and beer - a power combo

Green beer isn't only for St. Patrick's Day anymore. In Atlanta, SweetWater Brewing Company is remaking its brewery to meet growing demand, and a hefty photovoltaic system is part of the project.


DOE says biomass energy is plentiful and green

The nation can vastly increase the amount of energy it gets from biomass-derived sources without jeopardizing - and possibly even helping - the environment.

Portland, IBM team up to solve carbon issues

Portland, Oregon is getting a little help from computer giant IBM to help see how it can reach various city goals, including reducing its carbon emissions over the next several decades.

Boeing, Siemens bring smart grid to the military


Corporate giants Boeing and Siemens have announced a new agreement between the two companies for a project that will bring smart grid technology to the U.S. Department of Defense.