LED lamps and lightbulbs are solid-state devices that use light-emitting diodes as the source of light. LED lighting offers longer service life and high energy efficiency than incandescent or fluorescent bulbs, but as an emerging consumer technology, remains more expensive than both.
France, Britain and Germany are at odds with each other over the future of rail travel between their respective nations.
3 | October 19, 2010 12:45pm |
A proposed installation outside of Abu Dhabi would harness the power of more than a thousand blade-less, waving stalks.
6 | October 15, 2010 3:00pm |
It's a system so inconsistent and disorderly that an attack against the national--or even a regional--power grid may be technologically impossible.
6 | October 14, 2010 2:30pm |
Transportation topped smart grid and biofuels in cleantech investment in the third quarter of 2010, according to a new report. Here's a breakdown of the numbers.
October 4, 2010 6:51am |
While refining their approach to crafting nanowires, NIST chemists stumbled across a way to make them produce light just like an LED bulb.
1 | September 30, 2010 7:12am |
The CEO of Austin, Texas-based Illumitex says his company's light emitting diodes aren't just energy-efficient -- they're optically efficient, too.
5 | September 28, 2010 7:00am |
During Climate Week NYC last week, Climate Group CEO Steve Howard said we didn't get a global climate agreement in Copenhagen last year, and we won't get it in Cancun this year, so we need to make...
2 | September 27, 2010 5:41am |
A Marine Corps regiment prepares to bring solar power into combat situations, and the Navy gets a new solar parking lot.
5 | September 24, 2010 4:00am |
DOE researchers are scientifically testing four houses over 2.5 years to see if green technology lives up to its lab promises in the real world.
September 22, 2010 8:51am |
The top mainstream-class winner was not an electric car, but an internal combustion-engine-driven one --with an extremely lightweight design.
8 | September 17, 2010 2:18pm |
VantagePoint Venture Partners has launched a $100 million fund aimed at the Chinese cleantech market.
September 17, 2010 1:15pm |
At Boston Latin: a network of green-minded individuals, partnerships in the community, testimony at public hearings, climate summits and solar panels. The leaders? Most of them aren't even old...
1 | September 15, 2010 2:00am |
An industry watchdog called Smart-Electronics Initiative wants to stem consumer electronics energy consumption.
1 | September 10, 2010 1:14pm |
Drivers' perception of how safe or efficient their road habits are is incorrect. GreenRoad offers data to show companies how truckers can be safer and save them money, too.
4 | September 9, 2010 7:57am |
Mayor Mark Stodola says only 35 percent of Little Rock's households recycle. Would providing them some monetary incentive increase participation?
5 | September 8, 2010 2:00am |
A DARPA-funded optical device built into a silicon chip can reduce the speed of light by a factor of 1,200, a major step toward the realization of an ultra-efficient, all-optical quantum data network.
6 | September 7, 2010 12:27pm |
Light at night---high powered light bulbs that lead to so-called environmental light pollution---appears to lead to higher cancer rates, according to a study the University of Haifa.
6 | September 2, 2010 7:18am |
It may sound impossible, but scientists say they are in the early stages of developing devices to capture electricity from the air.
5 | August 26, 2010 7:38am |
Smart meters are rolling out across the United States, but consumers aren't yet seeing the benefits. Why? GreenWave Reality CEO Greg Memo explains.
3 | August 23, 2010 1:59pm |
The LED lighting revolution is gaining momentum thanks to strong growth in outdoor lighting and LED bulbs, Cree CEO Chuck Swoboda says.
4 | August 11, 2010 2:13pm |