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Don't be too quick to toss out the battery from that ancient laptop -- it might just be the key to powering homes in developing countries, and helping the environment in the process. IBM researchers have revealed UrJar, a device that turns old lithium-ion battery packs into rechargeable energy sou

12 days ago 0 Comments
December 9, 2014 at 3:02AM
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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

23 days ago 0 Comments
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Last month, Procter & Gamble decided that it wanted out of the battery game, and was selling Duracell to the highest bidder. Today, a surprising figure has emerged as the buyer: America's richest man, Warren Buffett. According to the release, Berkshire Hathaway (Buffett's company) will spend a

1 month ago 0 Comments
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If WiTricity CEO Alex Gruzen gets his way, the company's tech will soon wind up in your phone, your car and even inside your body. That's because the Massachusetts-based company deals in magnetic resonance technology, and if those words don't mean anything to you now, they probably will before lon

1 month ago 0 Comments
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Current HTC phones like the One M8 have solid battery life, but that won't do you much good if you're already running low on energy and need a top-up as soon as possible. That's where the company's upcoming Rapid Charger 2.0 might just come in handy. The wall adapter leans on Qualcomm's Quick Ch

1 month ago 0 Comments
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One of the biggest challenges of switching to clean energy sources is finding a place to store excess power. That's relatively easy on a small scale, but it's much more daunting for your utility company. Southern California Edison is apparently ready to take on that challenge, however. It just lau

2 months ago 0 Comments
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For the most part, portable energy generators are intended for modest uses. They can charge your phone, but they won't drive high-powered laptops or small appliances. That might change if Omni3D gets its crowdfunded AirEnergy 3D off the ground. The 3D-printed wind turbine should fit into a backpac

4 months ago 0 Comments
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Forget lab-made materials like graphene -- natural, old-fashioned hemp may be the ticket to our energy future. Researchers have demonstrated that you can make very efficient carbon electrodes simply by heating hemp bast fibers in a two-stage process. The resulting substance holds as much energy

4 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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Thermoelectrics -- which use wasted heat to generate electricity -- could get a lot more interesting thanks to a company called Alphabet Energy. It's set to commercialize tetrahedrite, a metal that more than doubles the efficiency of current tech for as little as a fiftieth the cost. Thermoelectri

5 months ago 0 Comments
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There are certainly clothes and wires that can transmit electricity, but wouldn't it make sense if they could hold on to it as well? Researchers at the University of Central Florida certainly think so, since they've just developed technology that lets wires and threads store energy. Their approach

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

7 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

7 months ago 0 Comments