World's largest solar farm is up and running in California
A cool way to cool: Engineers invent high-tech mirror to beam heat away from buildings into space
Stanford engineers have invented a revolutionary coating material that can help cool buildings, even on sunny days, by radiating heat away from the buildings and sending it directly into space.
NREL demonstrates 45.7% efficiency for concentrator solar cell
The Energy Department's National Renewable Energy Laboratory has announced the demonstration of a 45.7 percent conversion efficiency for a four-junction solar cell at 234 suns concentration. This achievement ...
Boeing 737 factory to move to clean energy
Boeing said Tuesday it plans to buy renewable energy credits to replace fossil-fuel power at the factory in Washington state where it assembles its 737 commercial airplanes.
Carbon-trapping 'sponges' can cut greenhouse gases
In the fight against global warming, carbon capture – chemically trapping carbon dioxide before it releases into the atmosphere – is gaining momentum, but standard methods are plagued by toxicity, corrosiveness ...
Engineers identify, address cause of persistent solar cell issue
University of Nebraska-Lincoln engineers have doubled the efficiency of a prominent solar cell technology by unraveling the origins of a phenomenon known to hinder cell performance, stability and evaluation.
Storing hydrogen underground could boost transportation, energy security
Large-scale storage of low-pressure, gaseous hydrogen in salt caverns and other underground sites for transportation fuel and grid-scale energy applications offers several advantages over above-ground storage, ...
Researchers convert sunlight to electricity with over 40 percent efficiency
UNSW Australia's solar researchers have converted over 40% of the sunlight hitting a solar system into electricity, the highest efficiency ever reported.
Low-grade waste heat regenerates ammonia battery
An efficient method to harvest low-grade waste heat as electricity may be possible using reversible ammonia batteries, according to Penn State engineers.
Audi to develop Tesla Model S all-electric rival
Solar tech could enable world's first underground park
Visitors from around the world are drawn to New York City's High Line, an elevated park built on defunct railroad tracks transformed into an urban sanctuary of flowers, grasses and trees.
Matched 'hybrid' systems may hold key to wider use of renewable energy
The use of renewable energy in the United States could take a significant leap forward with improved storage technologies or more efforts to "match" different forms of alternative energy systems that provide ...
Dutch seek to harness energy from salt water mix (Update)
Dutch researchers are seeking to add a new, largely untapped renewable energy source to the world's energy mix with the opening of a "Blue Energy" test facility on Wednesday.
Are electric cars greener? Depends on where you live
Long thought a thing of the future, electric cars are becoming mainstream. Sales in the United States of plug-in, electric vehicles nearly doubled last year. Credible forecasts see the number rising within ...