renewable energy

"Solar trees," which suspend solar panels over parking spaces in San Diego, collect electricity. Generating solar power like this is just one rung on a ladder the city will have to climb to reach 100 percent renewable energy by 2035.

San Diego Mulls Whether To Let City, Not Utility, Buy Alternative Energy

2:52pm January 26, 2016

by Claire Trageser

It's the largest city in the U.S. to commit to using only renewable energy. And even though stakeholders are on board, trouble could be brewing over how to implement the plan.

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The Heartland Biogas facility in Weld County, Colo., is one of the country's largest waste treatment plants that converts methane to natural gas.

From Poop To Power: Colorado Explores New Sources Of Renewable Energy

4:28pm January 01, 2016

by Dan Boyce

Europe has extracted natural gas from organic waste for about a decade, and now it's spreading to the U.S. In Colorado, efforts are under way to produce natural gas from human waste and food scraps.

Onlookers come to admire the self-proclaimed

Which Burns More Kilowatt-Hours: America's Christmas Lights Or Tanzania?

5:57pm December 22, 2015

by Marc Silver

As you might have guessed, the answer is not Tanzania. So the holiday season is a good time to reflect on ... electricity.

Wind turbines outside Caledon in Cape Town, South Africa. Solar and wind farms are filling in the gaps during power shortages.

Wind And Sun Come To The Rescue In Power-Short South Africa

4:34pm December 11, 2015

by Don Boroughs

Is renewable energy worth the cost? This is a question being debated in Paris this week. Though there's no simple answer, in South Africa the verdict is in.

A solar tower belonging to the Spanish firm Abengoa is shown near Seville, in southern Spain, on Nov. 13. The large renewable energy company, which has been heavily subsidized by the government, is in danger of becoming the country's largest bankruptcy. T

World News

Bankruptcy Looms For Spain's Green Energy Giant

3:58pm December 02, 2015

by Lauren Frayer

Abengoa, a large renewable energy company with a huge solar plant in Arizona, is in danger of becoming Spain's biggest bankruptcy case of all time.

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Kevin Murphy says he is proud of what he and the other workers do at the Rosebud mine, including digging the coal and reclaiming the land afterward.

New EPA Rules Motivate Montana To Look Beyond Coal

8:10pm September 10, 2015

by Amy Martin

Montana has one of the heaviest lifts of any state to comply with the EPA's plan to reduce carbon emissions. But the state is also rich in renewable energy, and the regulations may be a boon to some.

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United has purchased 15 million gallons of renewable jet fuel made from beef tallow, or fat, by Alt Air Fuels and plans to use the fuel this year for Los Angeles-to-San Francisco flights.

Food Waste And Beef Fat Will Be Making Airplanes Soar

6:31pm August 20, 2015

by Abbie Fentress Swanson

Biofuel producers are teaming up with farms, meatpackers and waste management companies to tap the gassy waste on farms to make renewable jet fuel and diesel for vehicles.

U.S. Predicted To Be Net Energy Exporter In Next Decade; First Time Since 1950s

6:13pm April 15, 2015

by Bill Chappell

Citing a boom in natural gas and shifts in demand, the Energy Information Administration says the U.S. could stop being a net energy importer "sometime between 2020 and 2030."

Renewable energy sources — such as the Eolo wind park about 75 miles south of the Nicaraguan capital, Managua — generate about half of the country's electricity. Officials predict that figure could rise to 80 percent within years.

Nicaragua's Renewable Energy Revolution Picks Up Steam

4:26pm March 11, 2015

by John Otis

A few years ago, Nicaragua was almost totally dependent on imported fuel. Now the country's fierce winds, sun and volcanoes generate nearly half the country's electricity, and perhaps 80 percent soon.

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In Britain, a new bus running between Bath and the Bristol airport uses biomethane for power. The gas is derived from human sewage and food waste.

Poo Power: New British Bus Runs On Human Waste

1:43pm November 22, 2014

by Bill Chappell

Touting the use of renewable energy, the Bath Bus Company says the Bio-Bus runs cleaner than a bus powered by a traditional diesel engine.