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Trump's new solar tariffs could kill 23,000 US jobs
As expected, US President Donald Trump has imposed a 30 percent tariff on solar cells imported into the US, mainly from Asia, a move that could bring the booming residential solar industry to a screeching halt. The levies are less than those requested by the US solar cell manufacturers that brought the dispute to US regulators to begin with. However, they were vehemently opposed by Tesla and other large players in the US solar energy industry, who say they will wipe out high-paying jobs in a promising new sector of the economy.
Tesla and Panasonic to build solar panels for PowerWall systems
Tesla has entered a deal with Panasonic to manufacture solar panels at the new SolarCity facility in Buffalo, NY. However, the deal is non-binding and depends on shareholder approval of Tesla's $2.6 billion acquisition of SolarCity. In its blog, Tesla says it will sell the photovoltaic modules as part of a "solar energy system that will work seamlessly with Powerwall and Powerpack, Tesla's energy storage products."
Sharp unveils semi-transparent solar panels, lets you see the sun while reaping its benefits
Sharp has announced an unusual photovoltaic panel for the Japanese market that collects energy from the sun while still allowing the light to shine on through. Though it's rated at a lowly 6.8 percent / 98 watt max efficiency, the glass-like properties make it useful as a construction material (as shown in the balcony railing above), with the semi-transparent nature giving occupants privacy, to boot. The energy-producing cells are embedded in a laminated glass structure and an air slot provides a thermal barrier, allowing the panels to also be used as "windows, curtain wall and eaves" according to Sharp's PR. Though the system won't win any potency prizes, it has garnered a design award in Japan, so it won't blight any landscapes. There's no mention of pricing or western availability so far, but you can hit the source for all the technical details.
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.
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.
UCLA creates transparent solar cell, dreams of current generating windows
Transparent photovoltaics have yet to grace the face of your smartphone, but don't give up hope -- UCLA researchers are working on a new see-through solar cell that's showing potential. Using a new type of polymer solar cell, the team has been able to build a device that converts infrared light into electrical current. Current prototypes boast 4 percent energy conversion efficiency at 66 percent transparency -- not crystal clear, but certainly clean enough to peer through. According to a study in ACS Nano, the technology could be used in "building-integrated photovoltaics or integrated photovoltaic chargers for portable electronics." Translation? It could one day be used to build solar windows or better sun collecting smartphones. Don't get too excited though, the technology still has a ways to go before any of these dreams come to fruition. Still, feel free to head past the break for the team's official press release, or skip to the source to take in the full academic study.
Alt-week 7.8.2012: Solar flares, trapping dark matter, and life-sized Lego trees
Alt-week peels back the covers on some of the more curious sci-tech stories from the last seven days. This week we swing by some superhero news, look at how solar panels might shape up in the future, explore a Lego forest and see how to grab dark matter just using some household gold and strands of DNA. Not only that, we discover how the sun likes to celebrate the fourth of July with its own firework display. This is alt-week
Naval researchers soak up the sun below sea level with special solar cells
Have you ever harbored delusions of living in an underwater city inhabited by the likes of Ariel or those aliens from The Abyss? Yeah, well keep dreaming, because this engineering feat won't necessarily lead to that (the fictional mer people part, that is). What it will pave the way for is a new means of harnessing the sun's rays below sea level to power submerged sensor systems and platforms. The research, carried out by a team of U.S. Naval scientists, forgoes traditional crystalline and amorphous silicon photovoltaic cells for those based on the more efficient gallium indium phosphide. The reason? Turns out those latter semiconductors are well-suited to absorbing photons in the blue / green spectrum -- precisely the wavelengths that diffused sunlight take on under water. Using this newer approach, the team's proven that about 7 watts of energy can be generated per square meter of these deployed cells at a depth of up to 9.1 meters (30 feet). Further refinements and testing are, naturally, on deck, but soon enough we may be looking at a whole new world of possibilities under the sea. [Image courtesy Flickr]
Solid state solar panels are more affordable, say researchers, don't leak
Researchers at Northwestern University have found one way to stop a leak: get rid of the liquid. A new variation on the Grätzel solar cell replaces a short-lived organic dye with a solid alternative. The molecular dye the solid substance replaces was corrosive, at risk of leaking and only lasted about 18-months -- by replacing it, researchers plan to pave the way for a more affordable (and less toxic) alternative. Northwestern's new design flaunts a 10.2-percent conversion efficiency, the highest ever recorded in a solid-state solar cell of its type -- but that's still only half of what traditional sun collectors can do. Researchers hope to improve conversion in the long run, but expect that the cost reduction alone will be enough to get the party going. It may not be the greenest solar technology we've ever seen, but who are we to judge?
MIT's 3D solar cells take cubism to new energy efficient heights
The promise of free energy is an enticing one -- that's free as in renewable source, not cost. (This is capitalism, after all, someone's got to foot the bill.) Economic gripes aside, research outfits like M.I.T. are getting us one step closer to this cleaner fuel future with the creation of three dimensional photovoltaic cells. The team's findings, recently published in the journal Energy and Environmental Science, demonstrate how these computer-modeled structures, rising upward in an unfolded accordion shape, have been proven to increase their energy yield over contemporary flat panels by up to 20 times in field and theoretical testing. This capacity gain, made possible by an efficient harvesting of sunlight during less optimal hours of the day, could be especially helpful in powering regions prone to overcast or wintry climates. The tech is still far from consumer friendly, though, with the actual price of the associated juice exceeding that of traditional solar tech. With continued improvements to the manufacturing process, however, residential and business customers could very well look forward to a future outfitted with solar towers only a Cubist could love.
Two US startups break solar efficiency records, aim to light up your life
Two US startups are breaking solar efficiency records in their quest to bring clean, cost-effective, eco-friendly energy to a power grid near you. Alta Devices, based in Santa Clara, CA, has achieved a 23.5 percent efficiency rating with its standard solar panel, while Semprius, a Durham, NC company, has achieved a rating of 33.9 percent with its concentrated photovoltaic offering -- besting the previous records of 22.9 percent and 33 percent, respectively. Interestingly enough, both outfits chose to utilize a new material to construct their sun-sopping cells: gallium arsenide. The material, while more expensive, is better suited for absorbing the sun's energy, especially when compared to silicon, the cheaper element typically used. Alta and Semprius are looking to proliferate solar power by further refining the technology, making its price per kilowatt equivalent to that of fossil fuels without the use of government subsides. Here comes the sun...
Insert Coin: Ray solar charger adheres to your window, basks in the sunlight
In Insert Coin, we look at an exciting new tech project that requires funding before it can hit production. If you'd like to pitch a project, please send us a tip with "Insert Coin" as the subject line. The most frustrating products are the ones that have such simple ideas, you're upset that it hasn't been done before -- or that you weren't the one that came up with it. No idea is so simple as the brilliant Ray solar charger. A mobile phone juicer that comes with a kickstand and built-in suction cup so that it's nearly always pointed right at the sun. If you think that sounds like simple madness or genius, click past the break to find out why it could be worth your investment.
Ford teams with SunPower, offers EV owners $10,000 solar charging system
We might not know how much Ford's expecting for the Focus Electric, but it's already put a hefty $10,000 price tag on one of its accessories. The company announced today that it has teamed with SunPower to offer purchasers of the upcoming Focus Electric and C-MAX Energi a 2.5-kilowatt rooftop solar system. That setup will apparently provide "enough renewable energy production to offset the energy used for charging" cars that log 1,000 miles per month (about 30 miles per day) or less. If $10,000 is just a little too rich for your blood, there's always Best Buy's $1,500 budget-friendly charging station. Full PR after the break.
Photovoltaic polarizers could make self-charging smartphone dreams come true
There's nothing worse than losing the charge on your iPhone at the company picnic. But fear not, you won't be stranded Twitter-less next to the potato salad if UCLA's new energy recycling LCD technology ever makes it to market. According to its inventors, the traditional LCD polarization process loses as much as 75 percent of light energy -- something that eats around 80 to 90 percent of the device's power. By using polarizing organic photovoltaic cells, however, the LCD-packing gizmo can recycle its own lost backlight energy, keeping itself charged for longer. What's really cool is these cells can recycle indoor or outdoor light as well, so you will essentially never lose a charge -- or have to speak to another human IRL again. Full PR after the break.
MIT researchers revolutionize solar cell printing, fold the power of the sun into your everyday home (video)
Wouldn't it be neat if you could power a few gadgets around the house with some tastefully chosen, solar cell-embedded curtains? Alright, so this MIT-pioneered tech's not quite that advanced yet, but it's destined to have a Martha Stewart Living future. By eschewing liquids and high temperatures for gentler vapors kept below 120 degrees Celsius, researchers were able to cheaply print an array of photovoltaic cells on "ordinary untreated paper, cloth or plastic." And here's some additional food for thought -- the vapor-deposition process used to create these cells is the same as the one that puts that "silvery lining in your bag of potato chips" -- science, it's everywhere. Despite the tech's home furnishing friendly approach, this breakthrough printing technique can't be done with your everyday inkjet, but it will make the cost of solar energy installations a bit cozier. Its flexible durability aside, the cells currently operate at only one percent efficiency -- so you might want to buy those drapes in bulk to see a real bottom line kickback. Foldable paper video demonstration after the break.
Oregon engineers roll out cheaper, less wasteful solar cells with inkjet printer
It looks like the push to turn the inkjet printer into the next great manufacturer of solar cells has found another proponent in a team of engineers at Oregon State University. That group of resourceful researchers claims to have created the world's first "CIGS solar devices with inkjet printing," thus giving birth to a new production process that reduces raw material waste by 90 percent. CIGS (an acronym for copper, indium, gallium, and selenium) is a highly absorbent and efficient compound, especially suited to creating thin-film solar cells. The team has used inkjet technology to pump out a CIGS ink with an efficiency of five percent, and a potential efficiency of 12 percent; apparently enough to produce a "commercially viable solar cell." Unfortunately, the group has yet to announce plans to bring the ink to our desktop printer -- so much for that backyard solar farm. Full PR after the break.
Energy-efficient military uniforms to make solar-powered necktie so last season
This definitely isn't the first time we've heard of wearable solar cells, but a new development underway in the UK could certainly have a greater impact than, say, an iPod-charging denim jacket. By combining photovoltaic cells with thermoelectric devices, a team of researchers is working to create new, more efficient uniforms for British troops. The solar-powered outfits could cut the weight of traditional battery packs in half, allow for significantly longer military missions, and actually absorb energy across the electromagnetic spectrum, decreasing the possibility of detection by infrared technology. To ensure 24-hour power, the solar cells will collect energy in daylight, with thermoelectric devices taking on the task at night. A prototype is set for 2013, but we wonder how long it will take to hit the catwalk.
Snowflake-shaped photovoltaic cells bring the holiday cheer
Sandia National Laboratories have unveiled their newest photovoltaic cells -- glitter-sized particles made of crystalline silicon. The cells are made using common microelectronic and microelectromechanical systems techniques, and the results are pretty spectacular to behold. More interestingly, however, is the fact that they use 100 times less material in generating the same amount of energy as a regular solar cell. Here comes the sun Bacteria for better solar panels Because of their size and shape, the cells are well-suited to unusual applications, and researchers envision mass-production of the cells for use on building-integrated tents or clothing, so campers (or military personnel) could recharge their cell phones on the go. Researchers also think that these particles will be inexpensive to produce, but there's no word on when they'll be ready for consumer application. We'll keep you posted -- but hit the source link for more a more detailed description.
