There are solar-powered shelters, and the Girl Scouts helped set up 21 bluebird boxes.
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But a commercially viable solar-powered car, experts say, is still very far down the road.
Their solar-powered light had become a serious endeavor that needed to go beyond the classroom.
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BERLIN, Germany (CNN) -- Solar-powered rubbish bins in the heart of Berlin have the city's residents talking.
Led by Prof Michael Hoffman, the toilet they designed was solar-powered and generated hydrogen gas and electricity.
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Light Energy that produces and sells solar-powered LED lanterns to replace kerosene lights in the emerging market villages.
Over a year, the solar-powered microgrid will reduce the running time of the diesel generators from 100% to 40%.
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Ten solar-powered bins are to be installed on the University of Dundee's campus.
The clinic's solar-powered batteries are able to run only one at a time, along with some dim fluorescent bulbs.
In renewable energy news, Apple filed a patent for a solar-powered iPhone, which could be a game-changer for mobile devices.
The water is further heated by five solar-powered electrical pumps, to create radiant heat coming up through the wooden floorboards.
It's worse than I thought: These are people independent from foreign oil, carrying solar-powered chain saws, full of American ingenuity.
Fast-forward to the recent past and every green blog worth its solar-powered servers was celebrating the bike-sharing program in Paris.
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The new Thrupp Lake Wetland Centre, which will be solar-powered, will include a learning area and have a reedbed filtration system.
After an asteroid passed close to Earth last week, scientists in California have proposed launching solar-powered lasers to vaporize incoming asteroids.
At the nearby El Mirage Lake dry lake bed, the solar-powered Lightning Motorcycle set a new speed record for production motorcycles.
We might want to take a moment to smell the solar-powered coffee.
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This autonomous, solar-powered robot carries a ground-penetrating radar to study how snow accumulates, adding layer upon layer to the ice sheet over time.
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Samsung also is backing a project to turn old shipping containers into solar-powered, Web-enabled classrooms in places like South Africa and Sudan.
And last year, defence firm Qinetiq flew a solar-powered plane for 54 hours, smashing the official world record for the longest-duration unmanned flight.
Simple--and aesthetically pleasing--ideas include transforming Mason jars into solar-powered light jars, converting pallets into lawn furniture and reusing detergent containers as rain catchers.
On a lighter note, this solar-powered wheelchair and its designer prepared to embark on a 200 mile journey to showcase its capabilities.
Philips, for instance, is planning to launch a small solar-powered LED reading light for Africa, where an estimated 500m people live without electricity.
And a project is underway today to create a solar-powered water purification system to supply the needs of 750-1500 people per day.
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Washing water is piped down 700 meters (2, 300 feet) from the surface to the refuge once it has been heated by a solar-powered heater.
We also have hundreds of Big Belly solar-powered recycling collectors all over Center City and now they are being placed in the neighborhoods too.
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At Language of the Birds, solar-powered books mimic birds in motion: the open pages and bindings appear as wings and LED lights within the books create patterns.
In advance of the 2012 Solar Decathlon Europe, we brought you a preview of some of the top solar-powered houses in the competition.
The solar-powered Amazon Yarapa River Lodge has designated some land as a natural preserve and partnered with Cornell University to build a field laboratory.
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.
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