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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.
Inhabitat's Week in Green: 'round the clock solar plants, USB camping pot and wave energy farms
Green transportation soared to new heights this week as Inhabitat showcased the world's first true hybrid-electric airplane, and we spotted plans for a zero-emission hypersonic jet capable of traveling from London to New York in a single hour. Meanwhile, Japan gave the green for the construction of a blazing fast 313 MPH maglev train line, and we spotted a crazy high-speed rail concept that would allow passengers to change trains while speeding along the tracks. We also watched as an 11-year-old student piloted a 1,325 MPG hypermiling supercar and we saw an 8-ton Volkswagen beetle sculpture sink into the sea to start a new life as an artificial reef. It's been a scorching summer for solar power as Torresol opened the world's first 24/7 solar plant in Spain, and Samsung unveiled the first photovoltaic-laden laptop to be sold in the US. We also saw Aquamarine Power break ground on a massive wave energy farm in Orkney, while Germany hatched a plan to store excess wind power in abandoned coal mines. Finally, we spotted several novel incredibly odd new energy-generating gizmos -- a t-shirt that converts rock music into electricity and a power-generating USB camping pot that charges your gadgets as you cook. Speaking of renewable energy, this week we caught a first look at the amazing EDV-01 shelter -- a high-tech solar-powered building with a luminous LED facade that is capable of doubling its capacity with the flick of a switch. We also brought you Adrian Smith and Gordon Gill's plans for the world's 4th tallest skyscraper, and we showcased an ultramodern paperless office in the Netherlands that looks like a meteor fallen from space. Last but not least, we took an exclusive first look inside BIG's mountainous green-roofed eco village in Copenhagen, and tech expert Peter Rojas tackled the question of whether it's better to turn your laptop off or set it to sleep in our Ask a Tech Geek column.
Google's search for future profit targets the Sun, not just the cloud
These humble-looking contraptions were revealed in a Google patent application for a "heliostat control system" that automatically adjusts solar thermal mirrors to their optimal energy-harvesting angle. A camera and computer are housed in the central tower that receives heat from the mirrors, and together they detect when a heliostat is misaligned and then correct it using actuators. Sound like a strange distraction for an Internet company? Google thinks not. It's already invested $168 million in the world's largest solar tower in the Mojave Desert as part of its effort to both reduce its own massive electricity bill and diversify its business. It's also currently hiring three new technical staff to make this happen. Interested?
Solar Impulse completes first solar-powered international flight, Captain Piccard returns to earth
We're big fans of charming, ungainly Solar Impulse, and of Captain Bertrand Piccard and Andre Borschberg's quest to circumnavigate the globe in a solar-powered plane. In case you missed the live stream: the Swiss flier just got a little closer to that goal by completing its first international flight, taking off near Berne, Switzerland and landing in Brussels, Belgium, just under 13 hours later. That's half the flight time of an earlier test, in which the craft's 200-foot wingspan, covered with 12,000 photovoltaic solar cells, kept it aloft for 26 hours. Of course, a controlled test flight is one thing -- making solar-powered flight commercially viable means proving your plane can successfully navigate busy airspace. To see Solar Impulse come in for a smooth landing, peep the video after the break.
Sharp's Intelligent Power Conditioner works with EVs to make your house a lean, mean, solar-powered machine
So, you've got your government-issued solar panels and you bought a plug-in EV, but being both a budget-minded and green-conscious geek, you're concerned that your home's power generation and consumption isn't exactly optimal. Put your worries aside, because Sharp has created the Intelligent Power Conditioner (IPC) to max out the electrical efficiency of your abode while working in conjunction with public utilities. It operates by temporarily storing the unused solar-generated juice from the daytime -- using both the system's batteries and the cells in your shiny new EV -- to deliver a steady stream of electrons at night. In tests with a Mitsubishi i-MiEV, the system was able to use the EV to supply 8kW of power to a home, and doled out enough electricity (4kWh) to recharge the car in a scant 30 minutes. The IPC is still in the development phase, but Sharp is looking to make it commercially available "in the near future" -- which means the finishing touches on your ultimate eco-house will have to wait.
Zephyr solar-powered UAV breaks three more world records
The Zephyr is a winning machine. Last we reported, QinetiQ's solar-powered drone had just completed 7-days in the air, and counting. Now, the Federation Aeronautique Internationale (FAI) has confirmed that Zephyr completed that record-breaking flight with a solid 2-weeks in the air (336 hours). If that wasn't enough to put other drones to shame, FAI found that Zephyr also destroyed records for flight duration for a UAV of its class, and the altitude record for that class at 21,562 meters, or 70,741 feet. So keep the records coming, Zephyr, because everyone loves a winner, even when that winner is a unmanned war machine.
Philadelphia Eagles going self-sufficient on stadium energy from 2011, 30 percent of it renewable
Let's skip right past the cringe-worthy "Declaration of Energy Independence" slogan and look at what the Eagles are actually doing with their pro sports venue. The franchise that dresses in midnight green is aiming to smarten up its eco-green credentials with a new partnership with SolarBlue that will provide all of the Eagles' stadium energy needs for the next 20 years, after which point the team will be free to resell any surplus electricity back to the grid. 15 percent of the total output with be generated with spiral wind turbines erected around the top rim of Lincoln Financial Field, another 15 will come from 2,500 solar panels to be installed near the stadium, and the rest will be obtained from a biodiesel / natural gas plant. So it's not all renewable, but a nice step in the right direction, nonetheless.
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%
Duke study finds solar power cheaper than nuclear, Coach K stronger than Roy
Now, before you get all hot and bothered here, we should warn you that this study only uses information from within the great state of North Carolina (where Duke University is based, obviously), but the results are intriguing regardless. According to new data, the moment we're living in is a crossover one where the declining prices of solar panels may actually make sun-based energy more cost efficient to consider than nuclear. Duke found that the crossover price point was at around 16 cents per kilowatt hour (kWh), and for the first time ever in NC, the cost of one kWh of electricity from solar energy sunk below that. Of course, these results are apt to be even more impressive in sun-rich states like Arizona, Nevada and Utah, but it's fairly clear what the real purpose of the investigation was: convincing the school to shell out for solar panels to energize Krzyzewskiville during week-long campouts for UNC vs. Duke tickets.
IKAROS gets first burst of solar propulsion, wants more
Photons, man, it's all about the photons. Japan's solar sail-equipped IKAROS probe has recorded its first propulsion derived from the force of sunlight rays hitting its tender surface. The force generated is a truly minuscule 1.12 millinewtons, but that can go a long way (literally) in a frictionless environment like space. The kite's sails also soak up Sol's emitted light to generate electricity, making the most out of the one resource available to it. So now that we've figured out how to do all that, shall we get started on colonizing Mars or what?
Solar Impulse returns from 24 hour test flight 26 hours later
Rest easy, fans of solar-powered aeronautics. Captain Piccard's Solar Impulse has safely returned after 26 hours in the air -- powered by nothing but the sun. The four-engine aircraft, which features 12,000 solar cells arranged on its wingspan, reached a height of almost 29,000 feet before touching down at Payerne Airport near Berne, Switzerland today. The next step? The team is going back to the woodshed, with the hope of developing a plane that will circumnavigate the globe by 2013.
Solar Impulse begins 24-hour test flight, lets you watch the whole thing live
Boy, these Franco-Swiss research teams sure do like to exhibit their work to the world. After the Large Hadron Collider crew did a live webcast of their record-breaking 7 TeV proton collisions, here's Captain Piccard's Solar Impulse gang showing off their latest feat via a live video stream. Taking off shortly before 7AM Central European Time today, the HB-SIA craft is currently cruising above the idyllic plains of Switzerland, with the plan being for it to start gently descending through the night and plopping itself back down on terra firma early in the morning. Hit the source link to track its laps in real time, replete with sporadic commentary from the monitoring crew. It's riveting stuff.
Inhabitat's Week in Green: a US team wins the Solar Decathlon!
Each week our friends at Inhabitat recap the week's most interesting green developments and clean tech news for us. This week Inhabitat reported live from the scene of the Solar Decathlon in Madrid as 17 stunning solar-powered houses competed for the title of the world's most energy-efficient prefabricated house. The winner was just announced this evening and we're thrilled to see that an American team won: Virginia Tech's shape-shifting Lumenhaus. Considering that German teams have won the American Solar Decathlon for three years running now, we're really proud of the Virginia Tech team for their big win! We're also happy to see that several of our favorite solar houses from the show made it to the top ranks, including Germany's elegant IKAROS house, the ultra-efficient Armadillo Box, and Finland's beautiful wooden Luukku house. We also watched sustainable transportation soar to new heights this week as the world's first solar-powered blimp prepares to fly across the English Channel. Not to be outdone, the US Army unveiled plans for an ultra-long range hybrid airship that is capable of flying for three weeks at a time. In other news, renewable energy is heating up around the globe as the EU recently announced that it will import solar energy from the Sahara Desert within 5 years. We also saw a beautiful solar powered flower sprout in Southern California and looked at the worlds first solar-powered soccer ball, which could help the blind play soccer. Finally, we caught wind of an innovative breathing mask that filters CO2 from the air, converts it into energy, and stores it to power a cellphone or portable music player.
Toshiba's Charge Grid puts your solar panels to work, smartly charges your EV
Got a bunch of photovoltaic cells and a vehicle that requires electricity? Toshiba's thought up a process dubbed "Charge Grid" by which you can juice the latter efficiently. When the sun's out and the electrons are flowing, it doesn't pay to put them into the grid, so this system stores them in a rechargeable battery ready to rapidly charge your EV. For nighttime when the electricity rates are low, a bidirectional inverter lets you hop right back on the neighborhood grid, so your solar cells are put to good use and your car is always well fed. The company tells Tech-On commercialization of the system is still a few years away, so you've plenty of time to raze that roof antenna in favor of some photosynthesized electricity.
Geely IG is covered in solar cells, two years away from marketability
Chinese carmaker Geely is no stranger to building derivative designs, and its latest PHEV effort takes so much inspiration from Volkswagen's Beetle that even the press release begins with a metaphor about caterpillars flourishing into butterflies. That's also a little nod to the car's development, which has seen its initial design overhauled into the four-seater, photovoltaic cell-laden transporter you see above. The powertrain is still a hybrid number and not entirely electric, but seagull-wing doors have been added for some extra flair. Geely's IG is currently on display at the Beijing Auto Show, alongside its all-electric EK-1 and EK-2 brethren, the latter of which is promised to deliver 150kmph top speeds together with 180km cruising ranges and an 18-minute recharge time for 80 percent of the battery capacity. We'll believe it when we see it. This trifecta, along with a pair of other alternative fuel vehicles, is slated to "be marketed" in two years' time. You can wait that long, can't you?
Captain Piccard's Solar Impulse completes first full test flight, nears another frontier (video)
We've tracked this solar-powered tub from its announcement last year, through its first runway tests, past the little hop that counted as its first flight, and now we've arrived at the HB-SIA's first legitimate test flight. The Solar Impulse, brainchild of one Bertrand Piccard, took the upward plunge into the skies yesterday, successfully rising to 5,500 feet and a speed of 30 knots before gliding down gently and calling the whole thing an unqualified success. You can find video of the event after the break. A nighttime test flight is planned for later this year, after which a bulkier production model will be cobbled together with the intent of reaching the final goal of circumnavigating the globe by 2012.
PlanetSolar boat aims for Earth circumnavigation with Sun's help, enters testing stage (video)
You'll be forgiven for letting the PlanetSolar boat slip your mind in the year that's passed since we last heard of it, but the engineers behind the project haven't been slacking and today we're hearing that the multihull vessel has been put into the water to begin its seafaring tests. With nearly 5,400 square feet of photovoltaic cells adorning its roof, this is by far the biggest and most ambitious solar-powered boat yet, so it's no surprise that it won't be casting off on its globe circumnavigation attempt until at least April 2011. For now, you can enjoy photos of the vast ray-muncher at the PlanetSolar link below or skip past the break for the latest video from the team. [Thanks, Pavel]
Solar flares set to wreak havoc on GPS signals
The sun's activity isn't usually a hot topic around these parts, but when it threatens to derail satellite navigation services around the world, it must surely take center stage. UK researchers have corroborated Cornell's 2006 warning that our solar system's main life-giver is about to wake up and head toward a new solar maximum -- a period of elevated surface activity and radiation. It is precisely that radiation, which can be perceived in the form of solar flares, that worries people with respect to GPS signaling, as its effects on the Earth's ionosphere are likely to cause delays in data transmission from satellites to receivers and thereby result in triangulation errors. Still, it's more likely to be "troublesome than dangerous," but inaccuracies of around 10 meters and signal blackouts that could last for hours are being forecast in the absence of any intervening steps being taken. So yes, you now have another reason not to trust your GPS too much. [Thanks, Mike]
Photovoltaic circuit makes solar-powered touchscreens possible, not yet plausible
What's cooler than the latest in technology? How about the latest in self-powering technology? University of Pennsylvania researchers have put together what seems like the world's first photovoltaic circuit, which is to say that the electronic parts of your devices will no longer have to just consume energy, they'll be able to harvest it directly from the sun. The most obvious application for this would be in smartphone touchscreens, which could recharge themselves while you sip your latte at the local sun-drenched coffee shop. Of course, such practical uses are still a fair distance away, as the team can generate only minuscule amounts of power at present, but the theory is in place and so is our attention. Don't let us down, Penn!
Ontario and Samsung seal $6.7 billion renewable energy deal
Need to know how much it would cost you and your town to generate 2,500 megawatts of pure green energy? Your wind and solar farm infrastructure costs will come to 7 billion CAD (just under 6.7 billion in US currency), which includes a 437 million CAD "sweetener" to get Samsung on board. Plenty of curmudgeons have emerged from the woodwork to trash the deal as costing above market prices, but this appears to be the largest venture of its kind, so we're not entirely sure "market prices" exist yet. For its part, Samsung will create 16,000 jobs in the area, 4,000 of them permanent, as it builds toward the stated goal of providing enough energy to fully power 4 percent of Ontario's population. [Thanks, Dan]