Spherical glass lens concentrates sunlight by up to 10,000 times, boosts solar cell efficiency

Spherical glass lens concentrates sunlight by up to 10,000 times, boosts solar cell efficiency

Eking out more power from solar cells is an ongoing challenge for scientists, and now architect André Broessel has developed a spherical glass energy generator that’s said to improve efficiency by 35 percent. Acting as a lens, the rig’s large water-filled orb concentrates diffused daylight or moonlight onto a solar cell with the help of optical tracking to harvest electricity. In certain configurations, the apparatus can be used for solar thermal energy generation and even water heating. In addition to the oversized globe, Broessel has cooked up a mobile version of the contraption for domestic use and an array of much smaller ball lenses with dual-axis tracking that offers 40 percent efficiency. These devices aren’t the first venture into concentrated photovoltaics, but they are likely among the most visually impressive. If the Barcelona-based architect’s vision of the future comes true, you’ll be seeing these marbles incorporated into buildings and serving as standalone units. Hit the source links below for the picture spread of prototypes and renders.

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Spherical glass lens concentrates sunlight by up to 10,000 times, boosts solar cell efficiency originally appeared on Engadget on Tue, 28 Aug 2012 09:22:00 EDT. Please see our terms for use of feeds.

Permalink Gizmodo  |  sourceDesignboom, Rawlemon  | Email this | Comments

EcoXPower charges a smartphone, bicycle headlight and tail light with pedal power

EcoXPower charges a smartphone, bicycle headlight and tail light with pedal power

Bicycle rigs for charging cellphones have lit up our radar before, but now the EcoXPower is being billed as the first device of its kind that can simultaneously juice up LED lights and a smartphone with the power of your pedaling. Packing a headlamp, a red tail light and a lithium-ion rechargeable battery, the contraption attaches to a bike’s front wheel hub with the help of a universal mount. When clamped on, the apparatus’ clutch engages between the velocipede’s spokes so it can generate electricity. A USB adapter cable runs up the two-wheeler’s fork to a water-resistant, touchscreen-friendly case that can house iPhones, Android handsets and “all major GPS devices” perched atop the handlebars. Cyclists yearning to charge their electronics with the dynamo can pick one up for $99.99. Roll past the break for the full press release.

Continue reading EcoXPower charges a smartphone, bicycle headlight and tail light with pedal power

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EcoXPower charges a smartphone, bicycle headlight and tail light with pedal power originally appeared on Engadget on Thu, 23 Aug 2012 01:40:00 EDT. Please see our terms for use of feeds.

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Lightning Bolt Power Strip Reminds You To Play It Safe [Power]

Serving as a constant reminder that electricity isn’t something to be trifled with, this six outlet power bar is shaped like a lightning bolt so you hopefully won’t ever overload it and risk getting shocked. More »

iBikeConsole BikeCharge Dynamo Charges Your Gear While Your Ride Your Bike

Bicycle lights generally use battery or solar-powered LEDs these days, not bike dynamos like in the 1980s. That doesn’t mean that these types of tiny power stations aren’t still useful. I’ve seen a couple of different ones allowing you to charge up your devices simply by pedaling a bit more. The BikeCharge will take this to a new level since it generates more current and is lighter than other models.

ibikeconsole bikecharge dynamo charger

iBikeConsole’s BikeCharge Dynamo is a mounted DC power generator and it works with most smartphone brands. It’s supposed to charge up your phone in 2 to 3 hours, which isn’t bad – especially if you’re going for  It’s weatherproof, and the all-in-one design is 20% lighter than other systems of this nature. There’s a quick-release clutch that will allow you to disengage the dynamo when you aren’t in need of the extra power, though it’s designed to add minimal drag to your pedaling efforts when engaged. It’s also got a front LED light and two rear red LED lights, which can stay illuminated for up to 2 hours after you stop riding.

ibikeconsole bikecharge dynamo charger view

The BikeCharge Dynamo sells for $99.99(USD) but is currently out of stock.

 

[via Ubergizmo]


Researchers create super-efficient microbial fuel cell, dream of selling excess electricity

EDIT Researchers create superefficient microbial fuel cell, dream of selling excess electricity

Recycling wastewater to generate energy has turned up noses before, but researchers at Oregon State University have developed a microbial fuel cell that can create 10 to 50, or even 100 times more electricity per volume than similar technologies. After refining the tech for several years using new materials, techniques and selecting better microbes, the team can now extract two kilowatts per cubic meter of refuse. As bacteria oxidizes organic matter, electrons — rather than the hydrogen or methane that other methods rely upon — are produced and run from an anode to a cathode within the device to create an electric current. Once implementation costs are cut down, the technology could power waste treatment plants and enable them to sell excess electricity. The contraption isn’t just for processing what comes out of the porcelain throne — it can also utilize materials ranging from grass straw to beer brewing byproducts. For now, however, the cell will tackle a pilot study before it inches closer to your local brewery or water treatment facility.

Continue reading Researchers create super-efficient microbial fuel cell, dream of selling excess electricity

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Researchers create super-efficient microbial fuel cell, dream of selling excess electricity originally appeared on Engadget on Tue, 14 Aug 2012 04:14:00 EDT. Please see our terms for use of feeds.

Permalink PhysOrg  |  sourceOregon State University  | Email this | Comments

Exogear Exovolt Plus: Unlimited Stackable Power

It’s all about power when you’re on the go. Depending on your usage, it doesn’t take long for the battery of your tablet or smartphone to run out. It’s happened to everyone, stranded with no way to juice up your gear. The Exovolt Plus stackable batteries might help you out in these situations.

exogear stackable battery power external

Exogear’s Exovolt Plus is different from most external batteries, because you can simply stack up modules to add more battery power. The main unit, which sells for $89.95(USD), has got a 5,200 mAh battery. You can add as many subunits as you want at $49.95 a pop. Each of these also has a 5,200 mAh capacity. The batteries have double circuit protection, overheating protection, and short-circuit protection so they won’t explode in your face.

exogear stackable battery power external iphone

I guess these batteries would be good for camping and outdoor trips. The batteries aren’t that big, about twice the size of an iPhone, so they should be pretty easy to carry around in your pack. Exogear hasn’t yet confirmed a release date for the Exovolt Plus, but they should be coming soon.

exogear stackable battery power external ipad

[via DVice]


Stackable Battery Packs Provide as Much Power as You Can Carry [Batteries]

A portable battery pack is only as useful as long as you’re able to keep it charged. So Exogear has created a new compact power system that uses stackable modular battery packs to prolong its life almost indefinitely—as long as you’re willing to carry enough of them as backups. More »

Pics reveal expansion at Apple’s data center

Apple’s main data center is currently located in Maiden, North Carolina, covering 500,000 square feet that houses the servers for iCloud among other services. Wired has managed to take pictures of the new addons that Apple is adding to the data center which will help generate power, including a site for a 4.8 megawatt biogas plant, plus a solar farm that can generate an additional 20 megawatts, spanning 100 acres.

Wired commandeered a 1949 Piper PA-11 (Cub Special) spy plane in order to snap the photos of the work in progress at Apple’s data center. Work is currently underway not too far from the main server farm, indicating the site where the company will lay its 4.8 megawatt biogas plant, converting the gas produced there into electricity. Meanwhile, the 100 acre 20 megawatt solar farm is still under construction, with a second installation located only a few miles away.

Curiously, there’s a smaller “tactical” data center located next to the main 500,000 square foot installation that Apple is staying quiet about. It’s significantly smaller at 21,000 square feet, but John Engates, Chief Technology Officer at Rackspace, believes the space could be used by Apple’s partners for testing iCloud and other online services without giving up access to the main data center.

Apple’s goal is for 60% of its power requirements to be met by the renewable energy projects found on site. The other 40% will be purchased from local and regional companies, which will also come from renewable sources such as wind, solar, and biogas.


Pics reveal expansion at Apple’s data center is written by Ben Kersey & originally posted on SlashGear.
© 2005 – 2012, SlashGear. All right reserved.


IBM pushing System z, Power7+ chips as high as 5.5GHz, mainframes get mightier

IBM pushing System z, Power7 chips as high as 55GHz, mainframes get mightier

Ten-core, 2.4GHz Xeons? Pshaw. IBM is used to the kind of clock speeds and brute force power that lead to Europe-dominating supercomputers. Big Blue has no intentions of letting its guard down when it unveils its next generation processors at the upcoming Hot Chips conference: the company is teasing that the “zNext” chip at the heart of a future System z mainframe will ramp up to 5.5GHz — that’s faster than the still-speedy 5.2GHz z196 that has led IBM’s pack since 2010. For those who don’t need quite that big a sledgehammer, the technology veteran is hinting that its upcoming Power7+ processors will be up to 20 percent faster than the long-serving Power7, whose current 4.14GHz peak clock rate may seem quaint. We’ll know just how much those extra cycles mean when IBM takes to the conference podium on August 29th, but it’s safe to say that our databases and large-scale simulations won’t know what hit them.

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IBM pushing System z, Power7+ chips as high as 5.5GHz, mainframes get mightier originally appeared on Engadget on Sat, 04 Aug 2012 02:17:00 EDT. Please see our terms for use of feeds.

Permalink   |  sourceWall Street Journal, Hot Chips  | Email this | Comments

Poll: Is Mountain Lion devouring your Mac’s battery life?

Poll Is Mountain Lion devouring your Mac's battery life

We’ve seen plenty of users report that Apple’s latest OS, Mountain Lion, has caused a massive drop in battery life. While we haven’t been able to confirm any decrease in longevity with our own OS 10.8 machines, which include previous generation MacBook Pros and the company’s latest Retina model, it’s clear that some of you who were able to get the operating system downloaded and installed have experienced some not-so-favorable side effects with your Pros and MacBook Airs. While there are plenty of theories, there has yet to be a fix, though Apple is reportedly investigating the issue. This isn’t the first time users have reported decreased battery life after an OS update, with a lengthy support thread popping up after Lion’s release last year. So, how has the upgrade affected you? Sound off in the poll below to let us know.

View Poll

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Poll: Is Mountain Lion devouring your Mac’s battery life? originally appeared on Engadget on Fri, 03 Aug 2012 14:49:00 EDT. Please see our terms for use of feeds.

Permalink Forbes, ArsTechnica  |  sourceApple Discussions (Mountain Lion)  | Email this | Comments