Solar -- Engadget

solar posts

Japanese team takes top prize at World Solar Challenge

by Laura June posted Nov 2nd 2009 at 10:51AM

A Japanese team from Tokai University has taken the top spot at the World Solar Challenge, which was held at the end of last week in Australia. The team beat out the Delft University team which won four consecutive previous Challenges, and this year took second place, with the third seat going to the University of Michigan. The race course travels from southern to northern Australia over 3,000 km (about 1864 miles), and the winning team's car, Tokai Challenger, completed the race in just under 30 hours, averaging 62 miles per hour. Other notable participants included the MIT-built Eleanor.

[Via Wired]

i.Tech's SolarVoice Bluetooth headset could save the environment, not your look

by Tim Stevens posted Oct 28th 2009 at 8:41AM

Those looking for another excuse to wear a Bluetooth headset all the time just got it: iTech's $75 Dynamic SolarVoice 908. That awfully long title is applied to a conceptually simple device, a headset with a tiny solar panel on the side rated at five hours of talk time when fully charged. Sadly, though, there's no mention of how long you'll need to bask in the sun to get it there. (AC and USB charging are also naturally on offer.) Unlike earlier examples it's A2DP compliant, so it'll stream your tunes, and boasts integrated noise cancellation, so it's perfect for making your drunken barroom conversations a little more garbled.

Dell and Envision Solar refashion parking lot into clean energy farm, EV recharge station (video)

by Vladislav Savov posted Oct 26th 2009 at 6:06AM

Dell has added a shiny new feather to its cap today with the announcement of a freshly completed Solar Grove renewable energy installation. The system is composed of 512 solar panels, which provide shelter for 56 cars, and are capable of harvesting 131,000 kWh of energy per year. This power will be primarily used in the adjacent Round Rock HQ, but CleanCharge stations will also be available should you wish to juice up your electric vehicle on Mother Nature's finest. No matter how much Dell might have splashed out to bring this integration together, we can't help but suspect that the smug satisfaction of getting free energy -- both in pecuniary and ecological terms -- must be priceless. Video awaits after the break.

Continue reading Dell and Envision Solar refashion parking lot into clean energy farm, EV recharge station (video)

America's (newest) largest solar plant set to go live in Florida

by Darren Murph posted Oct 25th 2009 at 8:33AM

If all goes well, this 25-megawatt solar plant in Florida won't be America's largest for long, but it's not like we'd pass up the opportunity to let this $150 million facility bask in its own glory (and the sun, if we're being thorough) while it can. The Desoto facility is just one of three solar projects that Florida Power & Light is spearheading, and judging by the proximity of this one (in Arcadia) to the 75-megawatt facility planned for nearby Charlotte County, we'd surmise that the two are linked in some form or fashion. President Obama is expected to show up rocking a set of Kanye glasses underneath a welder's mask when the plant is fired up this Tuesday, and while it'll only provide power to "a fraction" of FP&L's customer base, it'll still generate around twice as much energy as the second-largest photovoltaic facility in the US of A.

[Thanks, Yossi]

Sharp solar cell sets Conversion Efficiency record

by Joseph L. Flatley posted Oct 23rd 2009 at 12:22PM

The kids at Sharp have a long history of solar power development and research -- something which is evident in the solar cells they've attached to everything from televisions to cellphones. Always moving onward and upwards, the company is now announcing that it's achieved a title-holding 35.8 percent cell conversion efficiency through the use of a triple-junction compound cell. Mainly used on satellites, the triple-junction cell uses three photo-absorption layers and materials (such as indium gallium arsenide) to boost efficiency. This is all good news indeed for both people anticipating better solar devices and fans of solar research in general -- and great news for the people that make those 18 foot tall "solar flowers." PR after the break.

[Via Akihabara]

Continue reading Sharp solar cell sets Conversion Efficiency record

Samsung's solar Blue Earth launching in Sweden this month, elsewhere soon

by Chris Ziegler posted Oct 14th 2009 at 1:32AM

First, the good news: that slide we saw back in August promising Blue Earth deliveries in October was spot on, seeing how Samsung just made an official announcement to that effect. Now, the bad: unless you're in Sweden, that doesn't mean much -- at least, not yet. The HSDPA-equipped full touch handset with an integrated solar charger is set to launch in the Nordic nation this month, with France, Germany, Austria, Italy, Portugal, and "other European and Asian countries" following on shortly; notably missing is the US, which wouldn't benefit from the 900 / 2100MHz 3G radio anyhow. Pricing hasn't been announced, but does it really matter when you'll be saving all that cash on your power bill?

LG's Solar Cell e-Book goes an extra day for every 5 hours of sunlight

by Thomas Ricker posted Oct 12th 2009 at 4:54AM

Funny thing going on in the marketplace right now: reading for pleasure is on a rapid decline yet the choice of e-reader devices grows weekly. That's good news for those of us not spending our down-time in front of a television, mouth agape -- awkward for manufacturers testing the waters of this unproven niche. LG's showing off its Solar Cell e-Book reader anyway, in a bid to flex its thin-film solar muscle. The prototype features an energy conversion efficiency of about 9.6 percent giving it an extra day's worth of power for that 6-inch TFT-LCD after about four to five hours in the sun. LG is working towards boosting its thin-film solar cell energy conversion efficiency rate to 12% by 2010 on up to 14% by 2012. We say bring it LG, if you can.

[Via OLED-Display]

Dow's POWERHOUSE solar shingles get along with non-solar siblings, your HOA

by Darren Murph posted Oct 8th 2009 at 10:04AM

Oh sure, massive photovoltaic installations on rooftops are nothing terribly new, but by and large, the ones we've seen are stuck on massive warehouses or elaborate stadiums in foreign lands. Dow Chemical is doing its darnedest to change all that with the introduction of the POWERHOUSE line of solar shingles. As you'd expect, these solar shingles are aimed at roofers looking to tip their hats to Ma Earth while providing shelter for well-endowed homeowners, and unlike most of the futuristic alternatives, these actually look somewhat similar to traditional shingles. Dow claims that "affordability" will be a feature when they become widely available in 2011, but we're understandably skeptical of such a claim given just how pricey solar roofs currently are (and you know, considering the company's for-profit standing).

[Via Jetson Green]

TDK unveils fashionable, colorful solar chargers (video)

by Ross Miller posted Oct 7th 2009 at 9:51AM

Solar power is something we've seen touted in every big tech trade show for as long as we can remember, but it's taken until recently to make it a bit easier on the eyes. Enter TDK's design-, color-, and sun-enhanced chargers, found hanging out under a hard light in the back of the company's CEATEC booth casually powering a fan. It's definitely a step up from dark paneling, so how long until we see this applied to some stylish mobile phones, eh world? Video after the break.

Gallery: TDK's designer solar chargers

Continue reading TDK unveils fashionable, colorful solar chargers (video)

Video: LG GD510 touchscreen 'Pop' is heavy on hype, light on specs

by Thomas Ricker posted Sep 30th 2009 at 5:23AM

Gotta hand it to LG, it pulled out the big hitting hyperbole with the launch of its otherwise simplistic GD510 touchscreen phone. LG begins with a reminder that it launched "the world's first full touchscreen phone" -- the Prada -- back in January 2007. A claim that Ericsson, Nokia, and others would rightfully dispute. LG then calls the brushed-aluminum GD510, or "Pop," the "most compact 3-inch full touchscreen phone ever made," while boasting of its simplicity. That latter claim is achieved by removing "unnecessary features" that apparently include burdensome WiFi and 3G radios since modern consumers want to browse the internet over GPRS/EDGE. Spec-wise, you get a WQVGA (note the "Q") display, 3 megapixel camera, 8GB of internal memory, and a single home key that glows green to call or red to hang-up / cancel. They've also ditched the S-Class UI in favor of something that's presumably less convoluted. There's even an optional solar-panel battery cover which we hear is the number one requested feature on touchscreen phones... right. It does look pretty though, which is saying a lot for a phone packing a solar panel. Hitting Europe in mid October and the US at the end of October if the Bluetooth SIG entry is to be believed. Video promo after the break.

Gallery: LG GD510 touchscreen 'Pop' is heavy on hype, light on specs

Read -- Bluetooth SIG
Read -- LG press release

Continue reading Video: LG GD510 touchscreen 'Pop' is heavy on hype, light on specs

SolarCity charging stations on Highway 101 give Tesla owners a little more time in the sun

by Tim Stevens posted Sep 25th 2009 at 12:55AM

The Tesla Roadster is by far the best-known electric car of the moment -- despite the company only having sold about 700 of the things. A high price point hasn't kept the car from capturing the minds of enviro-minded gearheads everywhere, of which there must be quite a few working at SolarCity. The California-based solar installation firm has created four Tesla charging stations along Highway 101 between Los Angeles and San Francisco, with a fifth coming online next month. The (apparently free) chargers provide a 240V charge at 70 amps, blowing away Eberhard's RFMC rapid charger and bringing the cars to full capacity in only 3.5 hours. Why, that's just enough time for a nice lunch and a bit of shopping. Sadly the plugs only work with Teslas, but will be retrofitted once some other suitable EV comes along in suitable numbers.

Colored solar panels work without direct sunlight, double as PAR Can filters

by Darren Murph posted Sep 21st 2009 at 3:36AM

With eco-friendliness on everyone's mind, it's no shock to see more and more progress being made in the realm of solar. Shortly after hearing that boffins across the way were swapping carbon nanotubes for silicon, a Tel Aviv-based startup is now hoping to push its colored panels into the mainstream thanks to their ability to work sans direct sunlight. Granted, the tinted cells have only shown a 12 percent efficiency rate in testing, but they can reportedly be produced for around half of what a conventional panel costs. In essence, the cost savings comes from the dearth of silicon within, as GreenSun Energy has discovered that power can be generated by simply diffusing available sunlight over the whole panel and allowing nanoparticles to handle the rest. We'll invite you to visit the links below for the science behind it, but we're just interested in helping Ma Earth while replacing every windows in our apartment with a stained glass alternative.

[Via Inhabitat]

JA Solar and Innovalight team up to commercialize 'silicon ink' solar cells

by Donald Melanson posted Sep 18th 2009 at 8:11PM

We've seen a few different approaches to printable, and occasionally paintable solar cells over the years, but it looks like JA Solar was particularly taken with Innovalight's so-called silicon ink-based solar cells, and it's now announced that its teaming up with the company to commercialize the technology. In addition to being "printable" and cheaper to manufacture than traditional solar cells, the company also claims that the silicon ink solar cells also boast an impressive 18 percent conversion efficiency, which has apparently just been backed up by both the U.S. Department of Energy's National Renewable Energy Laboratory and The Fraunhofer Institute for Solar Energy Systems. Details on the deal are otherwise a bit light, but JA Solar says that it'll manufacture the new cells using its existing solar cell manufacturing lines, which should lower the cost even further and, if all goes as planned, allow for "initial commercialization" sometime in 2010.

[Via CNET News Green Tech]

Cornell gurus look to carbon nanotubes for efficient solar cells

by Darren Murph posted Sep 17th 2009 at 10:21PM

You know what we love? Solar-powered gadgets, and carbon nanotubes. Oh, and Ivy League schools. Boffins from Cornell University are now looking to use the multifaceted carbon nanotube instead of silicon to develop efficient solar cells, and judging by the glacial pace at which solar cell efficiency is improving, we'd say the sector could use the boost. The researchers have already fabricated, tested and measured a simple solar cell (called a photodiode, just so you know) that was formed from an individual carbon nanotube. The tube was essentially a rolled-up sheet of graphene, and while the inner workings would take days to explain, the gist of it is this:

"The nanotube may be a nearly ideal photovoltaic cell because it allowed electrons to create more electrons by utilizing the spare energy from the light."

So, solar-powered F-350 trucks are now a possibility for next year, right?

[Via Graphene-Info]

Solar Roads get small DoE contract, confidence to change the world

by Darren Murph posted Sep 6th 2009 at 6:06PM

Solar roadways? Yeah, we've seen 'em before, but we've yet to see America's own Department of Energy give any one development company such a notable vouch of confidence. Just recently, the DoE handed over a $100,000 contract to Solar Roadways, which is just enough to build a prototype of the "first ever Solar Road panel." The 12- x 12-foot panels could theoretically be embedded into roads, and when shined upon, could pipe good, clean electricity straight into the grid. Heck, they could even boast LEDs in order to alert drivers to upcoming accidents or changes in road conditions. Reportedly, each panel would cost around $7,000 (at least initially), and if these were used on the entire US Interstate system, we could pretty much forget about using non-renewable energy sources to power our homes and businesses. Of course, our government is simultaneously wasting money on repaving perfectly good roadways with antiquated asphalt, so there's a tremendously great chance that this won't amount to anything.

[Via Inhabitat, thanks Miko]