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IBM alliance sets efficiency record for solar power cells using common materials
There have been more than a few solar power efficiency records set in the past few months, let alone years. What makes IBM, DelSolar, Solar Frontier and Tokyo Ohka Kogyo think they can just waltz in and claim a record of their own? By using more commonplace elements in the periodic table, that's how. The partnership's new photovoltaic cell based on copper, zinc and tin (CZTS for short) can convert light rays to electric power with a 11.1 percent efficiency rate -- still nothing to upset traditional silicon power, but a large 10 percent more efficient than anything else in the class. In its early form, CZTS can already be manufactured through ink printing and could be produced in quantities equivalent to about 500 gigawatts of power per year, or five times more than some of the next-closest alternatives. The group wants to improve CZTS' efficiency over the course of the next several years, ideally reaching the point where it's useful as a truly cheap, ubiquitous source of power. We're looking forward to the day when there's a little slice of solar energy in just about everything, hopefully including a few more hybrid cars and private aircraft.
Researchers make unsuitable parts work as solar cells, could lead to cheaper panels
Harnessing the power of the sun is a tricky business, but even the past few weeks have seen some interesting developments in the field. In this latest installment, researchers from the Lawrence Berkeley National Laboratory and the University of California have figured out a way of making solar cells from any semiconductor, potentially reducing the cost of their production. You see, efficient solar cells require semiconductors to be chemically modified for the current they produce to flow in one direction. The process uses expensive materials and only works with a few types of semiconductors, but the team's looking at using ones which aren't normally suitable -- the magic is to apply an electrical field to them. This field requires energy, but what's consumed is said to be a tiny fraction of what the cell's capable of producing when active, and it means chemical modification isn't needed. The concept of using a field to standardize the flow of juice isn't a new one, but the team's work on the geometrical structure of the cells has made it a reality, with a couple of working prototypes to satisfy the skeptics. More of these are on the way, as their focus has shifted to which semiconductors can offer the best efficiency at the lowest cost. And when the researchers have answered that question, there's nothing left to do but get cracking on commercial production. For the full scientific explanation, hit up the links below.
3D, light-trapping solar cells successfully fabricated by Solar3D
Solar3D probably isn't a company you're particularly familiar with... at least not yet. The California-based manufacturer has just successfully fabricated a three dimensional solar panel that traps sun light in nano-scale wells on a silicon wafer. Perhaps most exciting, the prototype panel was built using off-the-shelf tech from Panasonic, meaning that the price of mass production shouldn't be prohibitively high. More testing is needed, but the resulting panels should be up to 50 percent more efficient than current generation 2D ones. For a few more details, check out The PR after the break.
BAE Systems designs hard composite solar cells: could act as structure of UAVs, piece of soldier's gear
BAE Systems revealed that it's working on hardy, high-capacity solar cells that could power unmanned vehicles and even attach to an individual soldier's gear. According to Darren Buckle, a manager from BAE Systems' Advanced Technology Center, the cells are geared toward smaller, often airborne, military units, where weight is at a premium. The system, still in the development stage, could offer up power for heavy endurance unmanned air vehicles, provided the cells are made sensitive enough to absorb energy in less sunny situations -- something that the company's England-based engineers are currently contending with.
Logitech unveils its Solar Keyboard Folio for the new iPad and iPad 2, we go hands-on
There are all sorts of ways to go green these days, from driving an EV to installing super efficient light bulbs, and now Logitech's given us an environmentally friendly way to type tactilely on a tablet. It's a new iPad and iPad 2-friendly case called the Solar Keyboard Folio, which packs a Bluetooth keyboard powered by ambient light using the same solar cell tech found on the firm's computer keyboards. Once topped up with photons, Logitech claims its battery will keep you typing for over 1,000 hours even in complete darkness. The case is crafted of black, soft-touch, faux leather embossed with a small Logitech logo and has perforations for the iPad's speakers, plus a portal for the tablet's camera. Its keyboard is made of gray plastic, and pecking at the grid is a similar experience to using the one found on Logitech's other recently released iPad typing peripheral, the Ultrathin Keyboard Cover. Buttons are short-throw and provide satisfying clicky feedback, but the space bar and shift keys have a hollow feel when pressed. Perhaps the Folio's most intriguing design feature is the feet on the corners of the cradle in which the iPad is placed. Those little nubs allow for two viewing angles -- your slate can be seated in a more upright position behind the keyboard for typing, or in the notches outside the two shift keys for a more obtuse viewing angle when the keyboard isn't needed. What's this bit of green gear cost? It goes on sale in the US and Europe this month with an MSRP of $130.
Tesla pairs up with SolarCity, will power off-grid homes as well as cars
If you've ever dreamed of thumbing your nose at big energy and its expensive, polluting ways, then Tesla and a solar panel leasing company called SolarCity might be taking you a baby-step closer to reality. Although recognized mostly for its EVs, Tesla reckons it knows enough about batteries to solve a key problem in the solar energy chain -- namely the storage of power for use when the sun, power grid, or both go offline. The battery design, consisting of many laptop-style lithium ion batteries stacked together, was chosen after two years of research and a $1.8 million energy grant. The two companies are now waiting for tax credits from the Fed and California before rolling out the tech. And being kissing cousins -- with Elon Musk as both Chairman of SolarCity and CEO of Tesla -- certainly can't hurt.
Ski helmet charges iPods, iPhone and other mobile devices
A team of German researchers is working on technology that could let you ski all day without worrying about your smartphone battery, says a report in GlobalPost. Scientists from the Fraunhofer Institute in Berlin, TEXSYS and the Technical University in Berlin have created a solar helmet that charges your mobile device while you ski. The helmet has a curved solar panel skin, integrated headphones and a microphone so you can use your phone or mp3 player on the slopes. They've also designed a special set of gloves that can control your mobile device. Though it might not appeal to your casual, recreational skier, this solar system could be useful for adventurers who need extra juice for a long day mountaineering as well as mountain rescue teams who would appreciate the always-on communication.
Researchers create incredibly thin solar cells flexible enough to wrap around a human hair
You've probably heard that the sun is strong enough to power our planet many times over, but without a practical method of harnessing that energy, there's no way to take full advantage. An incredibly thin and light solar cell could go a long way to accomplishing that on a smaller scale, however, making the latest device from researchers from the University of Austria and the University of Tokyo a fairly significant discovery. Scientists were able to create an ultra-thin solar cell that measures just 1.9 micrometers thick -- roughly one-tenth the size of the next device. Not only is the sample slim -- composed of electrodes mounted on plastic foil, rather than glass -- it's also incredibly flexible, able to be wrapped around a single strand of human hair (which, believe it or not, is nearly 20 times thicker). The scalable cell could replace batteries in lighting, display and medical applications, and may be ready to be put to use in as few as five years. There's a bounty of physical measurement and efficiency data at the source link below, so grab those reading glasses and click on past the break.
Onyx develops 330-watt 'plug-n-play' solar panel with built-in AC outlet
Onyx's new 330-watt solar panel isn't the first to offer a "plug-n-play" solution for getting power to your gadgets, but it may be the first to include a standard US power outlet, and enough output to juice up a computer, light or any other appliance (within reason) through its built-in micro inverter. "You can literally point the panel at the sun and plug an extension cord directly into the panel for immediate power," according to the Onyx PR, which you'll find in full just past the break.
Notre Dame heralds paint-on solar cells, wants to smear your home with its goop (video)
Leave it to the Fighting Irish to take a stab at solving the world's energy woes. Notre Dame researchers have successfully developed solar cells that can be easily painted on to any conductive surface. Imagine, for a moment, applying this solution to your home rather than attaching solar panels to the roof. The paint mixture incorporates quantum dots of titanium dioxide, which is then coated with either cadmium sulfide or cadmium selenide, and is then suspended in mixture of water and alcohol to create a spreadable compound that's capable of generating electricity. While its efficiency isn't currently much to crow home about -- which hovers around one-percent -- scientists are now actively pursuing ways to improve this aspect while making a more stable compound. Most importantly, the paint can be made cheaply and in large quantities, which suggests that even if efficiency remains in the doldrums, it may be a very worthwhile pursuit. Touchdown Jesus is already watching the video after the break.
Has James Bond gone green? Bulletproof electric roadster in the works
Warding off assassins while saving the environment just became a cake walk with the Jo-Mojo, an upcoming creation by Lativian armored vehicle company DARTZ. This two seat convertible roadster brandishes an 80 horsepower electric engine capable of pushing zero to 60 mph in 9.5 seconds and a top speed of 125 mph -- yet most of its "mojo" is outside the hood. Custom seating, color-changing chameleon paint finish, bulletproof tires, and others are just a few of the many "drooling" features. The sunroof is given a task with flexible solar panels built-in, good for juicing up the batteries while idle or on the go. Aimed to hit the market at the end of Q2 2012, its estimated price tag starts at 30,000 euros (~ $40,000), within range of most low-end luxury automobiles. Check past the break for a video slideshow of this snazzy piece of metal by Gray Designs, DARTZ's partner in the venture.
Apple solar patent wants a sunny display light for your Sunny (De)light
Let's begin with the usual disclaimer: Apple patent applications do not mean the outlandish technology will be arriving in the next iPhone, just that someone in a Cupertino basement cooked it up during a marathon "imagining" session (possibly while enjoying a cool glass of purple stuff). The company's latest drawings-and-charts masterpiece concerns the construction and placement of photovoltaic cells and, more importantly, using the sun's energy to illuminate a display. By using a mirror pointed at the sky, you could reflect some rays toward your screen to supplement an LED backlight, or by turning the top lid of your Macbook into a solar panel. Although we can see one minor drawback in using solar powered backlighting -- if you have to point your display toward the sun, you're gonna need some powerful shades.
GE's new factory will push out one solar panel every ten seconds
General Electric is sending its troops to Colorado to conquer the thin film solar panel business. The 38th state will play home to a new facility that leverages the supermodel-thin panel know-how of PrimeStar Solar, which GE scooped up back in 2008. In traditional solar panels, sand is refined into silicon ingots, sliced wafers of which are then placed in a frame. The thin film process eliminates this, sandwiching layers of semiconductors between panes of glass -- saving time, money and, most importantly, energy. The factory will open ahead of schedule in 2012 and is reportedly capable of producing a new panel every ten seconds. You can learn all of that and more in the press release we've got for you after the break.
Solar panels light up Yosemite National Park, don't spoil your view
Normally we like to keep our technology and nature reasonably separate, but like peanut butter and chocolate, some combinations turn out better than you'd think. In the latest in a long line of projects funded by the American Recovery and Reinvestment Act, Yosemite National Park has installed over 2,800 solar panels in the El Portal maintenance complex, neatly hidden from the all seeing eyes of the public. The plenitude of photovoltaic plates will produce about 800,000 kWh per year, saving the park $50,000 annually on its power bill and scoring it $700,000 in rebates from PG&E over the next 5 years. The 5.8 million dollar system cuts the park's reliance on carbon fuels by 12 percent, and is now the largest grid-connected solar energy system in the National Park Service. Press release junkies can hit the break for the official announcement; solar fanatics looking for a better view should check out KCRA's coverage in the links below.
Inhabitat's Week in Green: IKEA's massive solar array, climate-controlled clothing and ultra-green yachts
The summer sun supercharged green technology this week as Inhabitat reported that IKEA flipped the switch on a massive 65,000 square foot solar array and designer Markus Kayser unveiled an awesome self-sufficient solar-powered laser cutter. We also spotted a clever off-grid Tropicana billboard that is juiced by oranges, and we learned about a new piezoelectric film that could lead to laptops powered by typing. Energy-generating architecture also made headlines as SMIT announced plans to roll out their Solar Ivy system on several buildings and one designer unveiled plans for a green energy island large enough to power Copenhagen. Green transportation also reached for the sky this week as the sun-powered Solar Impulse airplane made its public debut at the Paris Air Show and EADS unveiled plans for an innovative all-electric commercial aircraft. Efficient autos also hit the streets as the Nissan Leaf became the first electric car to tackle Pike's Peak, and we learned that Porsche is working on a new breed of cars that are able to drive themselves. If pedal-powered transportation is more your speed you won't want to miss this beautiful kinetic energy-storing Potenza vehicle, and we were wowed by the solar panel-clad Emax Excalibur hybrid yacht. In other news, we shined a light on green consumer electronics this week as we brought you a lunar LED light modeled after the moon and Peter Rojas explained how wasteful it is to keep gadgets chargers plugged in as part of our Ask a Tech Geek column. We also shared a low-tech tablet that's perfect for kids, and we showcased a new type of climate-controlled clothing that beats the summer heat. Finally, we were excited to see Sprint launch a contest where you can recycle your old cell to score a Vespa scooter and an eco smartphone, and we brought you seven sustainable designs for a greener Fourth of July.
Quantum dots could coat the world in nano-sized solar panels
We've long believed in the mystical power of quantum dots, so it makes perfect sense to us that one day they'll be used to fully harness the Sun God's rays and thereby save the planet. The nano-particles turn light into electricity, and could potentially be manufactured cheaply and abundantly enough to coat surfaces in current-generating paint. The main obstacle to this has so far been efficiency: the clever little dots just don't work very hard. However, scientists at the University of Toronto now claim to have discovered a fix. Instead of using a single layer of particles, which can only harvest one meager wavelength from the full gamut of solar light, they added a second coat on top and configured it to be sensitive to an additional part of the spectrum. By adding third and fourth layers, the researchers hope to achieve a commercially viable efficiency of 10-percent within the next five years. We humbly call on Ra to be pleased with their efforts.
Europe's first solar powered train tunnel goes live on Belgian high-speed line (video)
The train ride from Paris to Amsterdam may not be the most scenic of European railway routes, but it's the only one capable of harnessing the awesome power of the Sun -- for two miles, at least. Yesterday, engineers in Belgium officially switched on Europe's first solar-powered train tunnel, spanning a 2.1-mile stretch of the rail line connecting the City of Lights to Mokum. The installation's 16,000 solar panels will be used to provide 50 percent of the energy needed to power nearby Antwerp Central Station and to provide extra juice for both high-speed and traditional trains. Originally developed to help protect travelers from falling trees in an ancient forest, the project is expected to produce up to 3.3MWh 3,300 megawatts hours per year, while decreasing annual CO2 emissions by about 2,400 tons. Speed past the break for some aerial footage of the artery, along with a brief PR from Enfinity -- the Belgian renewable energy company that helped bring it to life. Update: According to the AFP, the tunnel will produce 3,300 megawatts hours per year.
Eton's Soulra XL solar-powered iPod boombox will cost $300, now ready for your pre-orders
Summer's nearly here, the sun shining bright -- wouldn't you like to share your tunes with friends while basking in the light? That's what Eton's counting on as it prepares to ship the Soulra XL, the solar-powered iPod boombox formerly known as the Soulra 2. As we discovered at CES in January, its set of eight speakers get pretty loud, and Eton claims it charges twice as fast as its predecessor (five hours) thanks to a sizable monocrystal solar panel, and lasts five hours on a charge. It'll juice your phone, too. All told, you'll be schlepping around seven pounds and paying $300 for the privilege of completely cordless mobile sound. Sound like a deal? You'll find Eton ready to shake your hand at our source link.
Nokero's solar-powered, rainproof N200 light bulb: brighter, stronger, more flexible
No one's going to be calling Nokero out for falling behind. Just a few short months after revealing its first commercial light bulb for developing nations, the outfit has now rolled out a second version, the predictably titled N200. This guy strikes a vastly different pose compared to the original, with the LED enclosure hanging on a swivel that enables it to be positioned in a way that would optimally catch light. When night falls, users can flip the light north to create a lantern. Nokero claims that this edition is just as rugged and rainproof as the original, but it's 60 percent brighter and lasts three times as long. A single NiMH battery is included, and that's what is rejuvenated by the sun -- once charged, it'll provide between 2.5 and 6 hours of light, depending on the mode. It's on sale now for $20 apiece (bulk prices are less), representing a modest $5 premium over the (still available) N100. Can't say the Yankees will be looking to decorate their outdoor patio with lighting right about now, but for the nomads trekking to Panama to escape Old Man Winter... well, you know what to do. Vid's after the break. [Images courtesy of Larry Bollig] %Gallery-107898%
Puma Phone review
So it's true, we're living in an age where people would shamelessly line up for certain electronics and luxurious fashion items. Why? Just because they can, and for that reason, some swanky outlets -- namely Christian Dior, Prada, Giorgio Armani, Dolce & Gabbana, and Versace -- have attempted to exploit our gadget lust by offering self-branded phones at extortionate prices. In the eyes of every-day consumers, there's really not much appeal in these soulless devices except for the logo and some extra bling, but apparently these two factors alone are enough to make some aficionados drool a river. On the other hand, Puma -- a less luxurious but naturally more accessible fashion brand -- has decided to do more than just slapping an OS skin onto its aptly-named Puma Phone. Priced at a comparably affordable £300 ($469), this Sagem-made featurephone packs a few unusual features such as a solar panel, a sports tracker, and even a virtual cougar named Dylan. Read on to find out if we could sense the Puma spirit in this device.%Gallery-99609%
