GreenWheel converts any Huffy 10-speed into an electric bicycle

It’s a struggle we all face. There’s the urge to bike to work each day, and then there’s the realization that you’re too huge / lazy / tired to make it on your own. Brilliant minds at MIT understand your frustration, and rather than asking you to drop a few grand on a bona fide electric bike, they’re developing an apparatus that can convert any standard bicycle into one that’s juiced. The GreenWheel contains an electric generator, batteries and an electric motor, all of which only need a wheel to be respoked in order to fit in. Under its current configuration, a single GreenWheel (yes, one can be added to each wheel) can propel a bike and your faineant derriere for around 25 miles; start peddling and that range doubles. There’s no clear indication of when these things will splash down at your local bike shop, but word has it that Copenhagen and South Africa are already looking to add it to their public transportation systems by 2010.

[Via DVICE, thanks Scott]

Continue reading GreenWheel converts any Huffy 10-speed into an electric bicycle

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GreenWheel converts any Huffy 10-speed into an electric bicycle originally appeared on Engadget on Thu, 26 Feb 2009 19:13:00 EST. Please see our terms for use of feeds.

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Freeplay’s ZipCharge spotted, priced and dated

Freeplay‘s ZipCharge has already made its debut, but it’s showing itself once more at Mobile World Congress now that it has a definitive ship date and price. For those out of the loop, this here power stick can charge up in just ten minutes, and the supplied cable provides all sorts of tips to juice up whatever random gadget you have laying around (Palm’s Foleo notwithstanding). The device is expected to splash down on store shelves this April for around £60 ($85), and you can peek a few more hands-on shots in the read link below.

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Freeplay’s ZipCharge spotted, priced and dated originally appeared on Engadget on Wed, 18 Feb 2009 05:41:00 EST. Please see our terms for use of feeds.

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NYT: Google’s PowerMeter to let users track electricity usage

The New York Times is reporting Google will announce a free web service tomorrow called PowerMeter that’ll let users track energy consumption in their homes or business, provided there’s a means to upload the data. That part of the equation’s gonna be up to other companies to create compatible devices, and while no manufacturing partners have been named, we’d suspect strange bedfellow GE will probably jump aboard pretty quickly. The service is expected to roll out in the next few months. Ready to give the boys in Mountain View even more access to your life?

Update: The official site has launched. According to the FAQ, PowerMeter is currently in closed beta. There’s also a video about the program, which you can peep after the break.

Continue reading NYT: Google’s PowerMeter to let users track electricity usage

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NYT: Google’s PowerMeter to let users track electricity usage originally appeared on Engadget on Mon, 09 Feb 2009 22:37:00 EST. Please see our terms for use of feeds.

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Garbage-powered garbage truck now making its way across merry England

The Brits get all the cool stuff — Queen Elizabeth II, The Sex Pistols… and now a rubbish truck that runs on rubbish (sort of). That’s right: up in Huddersfield they’ve just unleashed a modded three-and-a-half ton Smith Edison Ford Transit garbage truck that tools around, picking up garbage, hauls it to a nearby Energy from Waste power station and recycling center which then burns the ‘bage to make electricity for the next day’s route. The garbage also produces about 10 megawatts of excess electricity per day which is dumped into the grid for added fun. The truck’s got a top speed of about 50 miles per hour, and is apparently so quiet that the locals fear it could be dangerous to unsuspecting pedestrians. Maybe they could slap a speaker on there and pump some Oasis as a warning? Just a thought.

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Garbage-powered garbage truck now making its way across merry England originally appeared on Engadget on Mon, 02 Feb 2009 21:32:00 EST. Please see our terms for use of feeds.

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Baby steps: new solar cell efficiency record isn’t awe-inspiring

Granted, we’ve no idea what it takes to really push the efficiency level of a solar cell, but we’re getting pretty bored with these incremental improvements year after year. If you’ll recall, the record for solar cell efficiency sat at 40.7 percent in 2006, and that was raised to an amazing 40.8 percent last August. Today, researchers at the Fraunhofer Institute for Solar Energy Systems have announced an all new milestone: 41.1 percent efficiency. According to team head Frank Dimroth, the crew is simply “elated by this breakthrough.” Meanwhile, the rest of planet Earth is suddenly depressed by the thought of perishing from old age before this data point ever breaks the big five-oh.

[Via Gizmag]

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Baby steps: new solar cell efficiency record isn’t awe-inspiring originally appeared on Engadget on Tue, 27 Jan 2009 14:02:00 EST. Please see our terms for use of feeds.

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Kinesis K2 solar / wind charger hands-on: Captain Planet approved

Kinesis’ K2 solar / wind charger will power any USB device and is guaranteed to disappoint people mistaking it for a handheld fan. Of course, if you’re feeling less environmental, feel free plug it into an AC outlet to reenergize the thing. Anticipating popular demand, we’ve put video after the break.

[Via OhGizmo!]

Continue reading Kinesis K2 solar / wind charger hands-on: Captain Planet approved

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Kinesis K2 solar / wind charger hands-on: Captain Planet approved originally appeared on Engadget on Sat, 10 Jan 2009 06:27:00 EST. Please see our terms for use of feeds.

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Solar panel-packin’ sunglasses power your gizmos, make Kanye inordinately envious

Before you get all “Oh, that comment was so heartless” on us, we will say that the spectacles you’re peeping above are still a concept for now, though we wouldn’t be surprised at all to hear that Kanye himself eventually funds their commercialization. At any rate, designers Hyun-Joong Kim and Kwang-Seok Jeong should be mighty proud of their concoction, which integrates dye solar cells into fashion-forward sunglasses in order to power your pocketable gadgets. Put simply, the SIG (Self-Energy Converting Sunglasses) convert the sunlight that they’ll obviously see into usable energy, though it should be understood that these could give the impression that you’re rockin’ a head-mounted display. And we wouldn’t want that, now would we?

[Via Engadget Polska]

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Solar panel-packin’ sunglasses power your gizmos, make Kanye inordinately envious originally appeared on Engadget on Sat, 27 Dec 2008 21:51:00 EST. Please see our terms for use of feeds.

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Waste heat close to becoming useful in cooling / lighting applications

Not that waste heat in general hasn’t been repurposed for non-wasteful activities before, but researchers at Doshisha University are now edging ever closer to making useful the previously annoying thermoacoustic phenomenon. For those not really tied into the science realm, said phenomenon is a nonlinear one in which “heated air autonomously transforms into sound when passing through small mesh holes in a wire sheet.” Gurus are now developing a cooling technology that would have heat converted to sound, where it would then be transferred through a tube and reconverted into heat; furthermore, other whiz-kids are looking to generate actual electricity from the racket. In related news, the thermoelectric conversion is being used to transform waste heat from candles into energy for LEDs, which would emit more light than the candle powering it. Pop on past the break for a demonstration of the former.

Continue reading Waste heat close to becoming useful in cooling / lighting applications

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Waste heat close to becoming useful in cooling / lighting applications originally appeared on Engadget on Fri, 26 Dec 2008 22:11:00 EST. Please see our terms for use of feeds.

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