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Solar power just hit one of its biggest milestones, in more ways than one. First Solar recently finished building Topaz, a 550-megawatt plant that represents the largest active solar farm on the planet. And we do mean large -- the installation's nine million solar panels cover 9.5 square miles of

14 hours ago 0 Comments
November 28, 2014 at 12:58AM
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If you're a cyclist, you know the anxiety that comes with running out of water in the middle of a bike ride -- the last thing you want is dehydration when you're miles away from home. Design student Kristof Retezàr may just set your mind at ease, though. He recently developed Fontus, a bi

10 days ago 0 Comments
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It's great that manufacturers recover lead from discarded car batteries to use in new ones, since lead production from ores yields toxic residues. The problem is, when we shift from lead-acid to lithium-ion and other types of batteries (and we're starting to), over 200 million old batteries could

3 months ago 0 Comments
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Solar power cells need to stay relatively cool for the sake of both efficiency and longevity, but active cooling (like ventilation) isn't practical; it's expensive, and may block the very rays the cells are supposed to collect. To tackle this problem, Stanford University researchers have created a

4 months ago 0 Comments
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What's a fairly low-powered solar panel going to get you on a 600 horsepower car? Plenty, according to Aston Martin, which is set to install one of the roof of a Vantage GTE race car for the World Endurance Championship. The luxury car company said it's not looking at thin-film solar \"because it's

5 months ago 0 Comments
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Right now, you can install relatively cheap technology on your own roof and power your house, gadgets and even your car. For free! Sorcery? Not so much. The Earth receives more energy from our sun in about one hour than humans consume in an entire year. That's why solar power was the second leadin

6 months ago 0 Comments
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Solar panels have become cheaper and more efficient in recent years, but you can't say the same for the big, costly inverters turning their energy into usable electricity. Google isn't happy with this lack of progress, so it's about to launch the Little Box Challenge, an open competition to build

6 months ago 0 Comments
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Many green energy sources only generate power in a narrow range of conditions. Solar panels won't work when it's dark, for instance, and wind turbines are useless when everything is still. If Solar Wind Energy Tower has its way, though, we'll soon get clean electricity around the clock. It recentl

6 months ago 0 Comments
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When I showed Sol to my family, they all got a bit confused. My dad asked why I was testing a toolbox for Engadget, while my sister took one look at it and said \"Bumblebee.\" If you peek at the images below, you'll understand why: This solar-powered laptop does resemble a hardware tool case. And ye

7 months ago 0 Comments
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Solar power just hit the big time in the US -- BrightSource Energy has confirmed that the world's largest solar thermal plant, the Ivanpah Solar Electric Generating System in California, is up and running. The array, also backed by Google and NRG Energy, produces a total 392MW of power through 173

9 months ago 0 Comments
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It's tough to build solar cells that capture both heat and light -- most of these multi-talented devices can't trap more than one percent of the energy they receive. However, MIT has just blown past that limitation with a prototype chip that absorbs warmth through an outer layer of carbon nanotub

10 months ago 0 Comments
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...Because when you think of Britain, you think of sunny skies. Ikea has started selling solar panels for residential rooftops at its stores in the United Kingdom. The furniture outfit's move into home solar systems (as opposed to sun-powered lighting) was apparently made attractive due to the dro

1 year ago 0 Comments
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In Insert Coin, we look at an exciting new tech project that requires funding before it can hit production. If you'd like to pitch a project, please send us a tip with \"Insert Coin\" as the subject line. Granted, they're lacking that ever-important rapper endorsement, but the OnBeats do have one im

1 year ago 0 Comments
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It sounds like the future. Whirring electric skateboards, the joyous chatter of children in a distant playground and an unusual absence of petrol-powered machinery. It looks like the future, too. Glistening lakes dotting the background, lawns so lush they're mistaken for artwork and an unmistakabl

1 year ago 0 Comments