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Revolutionizing Solar Energy by Taking It Underground

Want greener energy without having to install large, gaudy solar panels on your house? Join the club. But what was once wishful thinking might soon be reality. According to ABC Science, scientists have created a way to harness sunlight and convert it into electricity by connecting a photovoltaic cell to fiber-optic wiring that's barely wider than a human hair. (Note that it doesn't actually use human hair, like these guys.) The wires, which are coated with zinc oxide (the stuff lifeguards plaster on their noses), could be installed on a roof or, best of all, underneath a house or inside its walls -- as long as the tip of the wire is exposed to the sun.

Here's how it works. Light is absorbed at the tip of the wire, and zips down its length and back, letting the zinc oxide convert it into electricity along the way. How effective is this process? Dr. Zhong Wang, who led the team of researchers at the Georgia Institute of Technology, says the wires only convert about 3.3-percent of the light that passes through. He hopes, though, that the number will soon jump to 8-percent.

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Green Tech, Holiday Gift Guide

Gift Guide: HYmini Solar-Powered Charger


HYmini Green Charger (Earth Lover, Under $100)

Eco-conscious people, however dedicated to their ideals, enjoy the same fruits of modern technology -- smartphones, MP3 players, and digital cameras -- as the rest of us. One company has created a sustainable way to charge those gadgets using multiple renewable energy sources including wind, the sun, and even a handcrank. The HYMini Green Charger's internal 1200 mAh lithium ion battery can also be charged via wall outlet by connecting it via USB to a computer -- two not-so-green, yet effective, alternatives. It takes four hours in a wall to fully charge, but just 20 minutes in a 9mph wind is enough to take 20 digital pictures or power your iPhone for half an hour. Up to four mini solar panels can be added to catch the sun, and the pocket-sized turbine can be attached to a bicycle (or skateboard, car, etc.) to collect additional wind upwards of 40 mph. With HYmini, increased velocity equals increased power, allowing users to get outdoors and "recharge their batteries" in more ways than one.

Green Tech

Forget Panels, New Solar Shingles Offer Easier Installation

Many people would love to build an entirely "green" house. But "going green" isn't always cheap or practical. That's why we're so excited about Dow Chemical's new solar-powered shingles, which are meant to be used on asphalt-tiled roofs. According to The New York Times, the Powerhouse thin-film shingle can be installed by most roofers, and they're durable, too. You can even drop one from a roof, or even walk on it, without fear of causing damage. They're simply nailed to the structure like regular shingles, but you'll still need an electrician to connect the panels to the home's electrical system. The Powerhouse shingle will be test marketed in the middle of next year.

While these shingles are only about 10-percent efficient, Dow managing director Jane Palmieri says a lower price and easier installation could create a $5 billion market by 2015. The solar-powered shingles are about 10-to-15-percent cheaper than a mounted rack of solar panels. That still doesn't change the fact that you'll need a lot of these to really make a dent in your electricity bill. Unless you're putting new shingles on Bill Gates's house, it's probably not quite practical to use them. [From: The New York Times]

Green Tech

Solar Ferries Float in Hong Kong Waters


In an effort to cut carbon-dioxide emissions, China is taking the fight against global warming to the water. Come November, solar-powered boats that look like a cross between a shark and something from 'Star Wars' will ferry folks across Hong Kong's harbor.

According to Bloomberg, the four solar-powered ferries will use about three-quarters solar power and one-quarter liquid petroleum gas (half the usual amount of carbon-dioxide emitted by a typical ferry). Not only will this save the environment, it'll save money, too. Ship designer Solar Sailor Holdings Ltd. told Bloomberg that this green technology will save ferry operators about $6 million in fuel costs over a 15-year period.

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Green Tech

Vatican Plans to Build Europe's Largest Solar Plant


Christians tend to gaze skyward for guidance, so it's no surprise that their leaders have chosen the sun as their power source of the future.

According to Fox News, the Vatican is planning to spend $660 million on a new 740-acre solar plant near the village of Santa Maria de Galeria. The plant, which would be largest of its kind in all of Europe, is expected to be ready by 2014. The Guardian also reports that the 100-megawatt solar plant, if completed as planned, would be able to provide energy to 40,000 homes throughout Italy.

We applaud the Vatican for taking a huge step toward embracing renewable energy, especially in today's global economic climate. We would also like to take a moment to congratulate the incompetent governments of established nations around the world -- you just made the Vatican look progressive.

Sigh.... [From: Fox News and The Guardian]

Cell Phones, Green Tech

Sharp Unveils World's First Waterproof, Solar-Powered Cell Phone

Sharp Unveils World's First Water-Proof, Solar-Powered Cell Phone
We've seen solar-powered cell phones and waterproof cell phones, but you'd have to combine both in order to truly take advantage of the fast-approaching summer beach season. Thankfully, a new waterproof, solar-powered cell phone from Sharp will save you from disaster after your other half launches it into the ocean when he or she catches you checking out other sexy folks on the beach.

Of course, this could also be a boon for those in developing countries, where electricity is scarce and monsoons are intense. Oh, and for pirates... let's not forget the pirates.

Price and features are currently unknown, although Sharp has claimed that after just ten minutes of charging in the sun, the phone will give you one minute of talk time and two full hours on standby. This world's first should be available in June... just in time for summer. [From: Engadget Mobile]

Computers, Green Tech

Space-Based Solar Power May Come to California


After JAXA's announcement of space-based solar power for Japan, we've been keeping our eyes peeled for some news of similar projects Stateside. Lo and behold, California's largest energy utility, Pacific Gas & Electric, has agreed to do just that, inking a deal with solar power startup Solaren Corp.

The agreement calls for the utility to purchase 200 megawatts of electricity once the company starts beaming power down from Earth orbit beginning in 2016. A solar-power satellite would consist of mirror arrays -- perhaps measuring up to several miles wide -- which would focus sunlight onto photoelectric cells. From there, the electrical power is converted into a microwave beam that is directed downward toward Earth, where it's converted back into electricity and then fed into the grid. According to the company, the system could generate roughly 1.2 to 4.8 gigawatts of power, at a price comparable to that of other renewable energy sources.

When asked for a comment, legendary sci-fi jazz composer Sun Ra was more than enthusiastic. "Space is the place," he said.

[Via Fresno Bee]

Green Tech

Solar-Powered Boat Departing on Worldwide Cruise Next Year



A group of engineers, scientists and sailors have banded together to form a team they call Solar Planet. The group is now building a 98-foot-long solar-powered boat for the express purpose of sailing all the way around the world using nothing but the delicious power of the sun. The $13 million dollar vessel -- which is currently in construction in Kiel, Germany -- will have 5,059 square feet of photovoltaic cells, and should be able to circumnavigate the earth in about 120 days, at a rate of about 10 knots. The project is being funded by Swiss company, Rivendell Holding AG, that has committed to investing in green technology. The group hopes to set sail sometime next year from Marseilles, France, with various stops along the way. They will undoubtedly tire of hearing that Daft Punk song long before they ever leave the shore. Check out a sweet rendering of the boat after the break.

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Green Tech

America's First 'Solar City' Coming to Florida



Given that Florida has accurately been coined The Sunshine State, it's not at all shocking to hear that America's first "solar city" will be built in the state's southwest corner. Or, at least that's the plan. According to a new report, West Palm Beach-based Kitson & Partners is currently developing a new city near Charlotte County, which will get juiced by a massive 75-megawatt solar plant. Said plant will cost around $300 million to build and will be installed by Florida Power & Light; if all goes well, homes will begin construction on a sizable plot of land dubbed Babcock Ranch by 2011. If things don't go so well, we're told that the actual power plant will still be erected and fed into the larger grid. In other words, Florida's gettin' some solar power, with or without this newfangled concrete jungle.

[Via: Fark]

Green Tech

IKEA starts selling totally hip SOLIG solar lighting devices


We've heard the excuse a gazillion times: "Yo, I want to go solar, but like, where do you even buy this stuff? Oh snap, 0 percent financing on a Hummer H2!" Finally, you can have a solid answer to that very quip (the first part, at least), as household megastore IKEA has begun stocking (in store; online is coming soon) a new series of solar-powered lighting supplies. The SOLIG series contains a handful of solar light sticks, orbs, garden lights, chain globes and even posts, all of which will surely brighten your outdoor patio, flower bed or Earth-friendly RV. Now, if only it were simple to relocate your life to southern Arizona in order to enjoy these more effectively... [Via Inhabitat]

eBay, Green Tech

Geothermal Cave Home Up for Sale on eBay


Have you ever wanted to live in a tricked-out cave? Was the tricked-out cave in your fantasy located in Festus, Missouri? If you answered yes to one of these questions, and have $300,000 lying around, you may want to check out eBay.

The Sleeper family of Festus, Missouri is selling their unique, 17,000 square-foot home on eBay. The eco-friendly abode, complete with kitchen, laundry room, party room and its own water source, is built into a cave and is naturally climate-controlled by passive solar and geothermal energy.

The house looks awesome, but we have some real concerns about the property and the family selling it: one, the house is located in Festus, Missouri; two, the family calls itself the Sleepers and lives in a cave. Sounds like a grizzly bear trap to us. Buyer beware! [From: Wavy.com]

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Car Tech, Green Tech

Next-Gen Prius Comes with Solar-Panel


The very shoe-like 2010 Toyota Prius has made its official debut at this week's Detroit Auto Show. The company estimates it'll have a 50 MPG rating -- up from 46 MPG in the previous model -- and there's a bigger, 1.8-liter four-cylinder engine for improved highway mileage. In addition to Power and Eco driving modes, EV Drive will let you run on battery alone for about a mile, which if nothing else should provide a little extra push for getting to the gas station when you've held off for too long.

One of the coolest (literally) new features is the optional solar panels in the moonroof that will generate power for circulating air and keeping the interior temperature from going too high. If that's not enough, there's a remote-controlled A/C system that can run on battery alone and lets you set the temperature before you get in.

Check out the read link below for more specs and the full press release.

Cell Phones, Computers, Green Tech, CES 2009

MINIWIZ Unveils Cheap Eco-Friendly Gadget Chargers

MINIWIZ Unveils Cheap and Pretty Green Gadget Chargers
We've seen personal sized eco-friendly gadget chargers before, but few have been as well designed or affordable as the new line of wind and solar chargers that MINIWIZ unveiled last week at CES. The first is the HYmini, a hand-held -- but not quite pocketable -- power generator activated by the wind. It has an internal battery that can hold a charge for powering devices later or it can be be hooked up directly to your gadgets, such as iPods and phones, through included USB cable and power adapters. All you need is $49.99 and 9 mph winds to be in business.

If you're more interested in harnessing sunlight (or the cheaper option), you can pick up the miniSOLAR panel, which comes with the same cables and adapters. The miniSOLAR's thin body is encased in recycled cardboard and copper, and the charging device retails for $24.99. You can even daisy chain up to four miniSOLARs together for more power, and accessories are available to mount them on your bike (dorky) or arm (super dorky).

Car Tech, Green Tech

Toyota May Be Developing a Solar-Powered Car

Around half a year ago, we heard that Toyota was engineering a Prius that would get part of its energy from the sun; now, we're seeing an eerily similar story from Japan suggesting that the plan is still on. In a rather odd report, it's noted that the automaker is "secretly (oh, is it now?) developing a vehicle that will be powered solely by solar energy," though it's also working on a partially solar-powered whip that'll come out long before the pure solar alternative. Regrettably, details beyond that are few and far between, though the premise here is completely reasonable given the current economy and the desire for automobiles that run on anything other than petroleum. Guess we'll check back in six months for yet another elusive report on the so-called progress.

Audio/Video

Solar Panel-Packin' Sunglasses Power Your Gizmos


Before you get all "Oh, that comment was so heartless" on us, we will say that the spectacles you're peeping above are still a concept for now, though we wouldn't be surprised at all to hear that Kanye himself eventually funds their commercialization. At any rate, designers Hyun-Joong Kim and Kwang-Seok Jeong should be mighty proud of their concoction, which integrates dye solar cells into fashion-forward sunglasses in order to power your pocketable gadgets. Put simply, the SIG (Self-Energy Converting Sunglasses) convert the sunlight that they'll obviously see into usable energy, though it should be understood that these could give the impression that you're rockin' a head-mounted display. And we wouldn't want that, now would we?

[Via Engadget Polska]

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CNET provides the latest tech news, unbiased reviews, videos, podcasts, software, and downloads, making tech products easy to find, understand and use.

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