Solar

Blackfriars Bridge, a Victorian rail bridge in the heart of London, is now well on its way to becoming the biggest solar array in the city and the world's largest solar bridge. When the installation is complete, the roof of the new Blackfriars railway station will be home to over 6,000 square meters (64,583 sq.ft.) of solar panels, satisfying half of the station's power needs. Read More

Three New York entrepreneurs have unveiled plans to turn a long abandoned underground train terminal into a lush and thriving garden. Conceived by architect James Ramsey, VP of the PopTech social innovation network Dan Barasch and money manager R. Boykin Curry IV, the Delancey Underground Project hopes to create New York's first subterranean green space beneath one of the city's least green zones - the Lower East Side - in an unused rail space that stretches over two acres and is nearly the size of Gramercy Park. Read More

At last year's IFA electronics trade show, Miele unveiled its SmartGrid-ready washer and dryer. Although they run off of regular mains power, these machines are also able to access the internet and determine when rates will be cheapest. Users indicate the time period in which the laundry must be washed or dried, the appliances choose the least expensive time within that period, then proceed to automatically start at that time. At IFA 2011, Miele has gone one better by unveiling what it describes as the world's first dryer to use the heat of the sun to get the wetness out of clothes. Read More

Each and every day, the sun showers our cities in solar energy. Every night, our cities emit light so bright that they can be seen from space. An industrial designer from the Bezalel Academy of Art and Design, Jerusalem, Israel, has designed a concept device called the UrbanTile that would harness the solar energy city buildings absorb during the day for their lighting needs at night. The UrbanTile is a small solar panel that can be flipped to reveal a light emitting screen. Banded together into rows, the panels become a window blind that forms a light and entertainment display. Read More

MIT researchers have reported a breakthrough in "wavelength tuning" that promises to boost the efficiency of thermophotovoltaic (TPV) systems and in turn could lead to lighter, longer-lasting portable power sources. Read More

The Nuon Solar Team has revealed its lightest solar powered vehicle yet. Not only is the 145 kg Nuna6 around 10 percent lighter than its predecessor Nuna5 and half the weight of the original Nuna which competed in 2001, it is also 15 inches shorter and has 10 percent less air resistance. This month's unveiling comes as the team of students from the Delft University of Technology prepares for a tilt at victory in the 2011 World Solar Challenge - a biennial 1800 mile race through the heart of Australia that has become one of the world's premiere showcases for these incredibly efficient vehicles and the technologies that underpin them. Read More

An ambitious solar energy project on a massive scale is about to get underway in the Arizona desert. EnviroMission is undergoing land acquisition and site-specific engineering to build its first full-scale solar tower - and when we say full-scale, we mean it! The mammoth 800-plus meter (2625 ft) tall tower will instantly become one of the world's tallest buildings. Its 200-megawatt power generation capacity will reliably feed the grid with enough power for 150,000 US homes, and once it's built, it can be expected to more or less sit there producing clean, renewable power with virtually no maintenance until it's more than 80 years old. In the video after the jump, EnviroMission CEO Roger Davey explains the solar tower technology, the Arizona project and why he couldn't get it built at home in Australia. Read More

According to a team of researchers at the UC San Diego Jacobs School of Engineering, the solar panels sprouting on increasing numbers of residential and commercial rooftops around the world aren’t just generating green electricity, they’re also helping keep the buildings cool. The news that letting photovoltaic panels take the solar beating will reduce the amount of heat reaching the roof shouldn’t come as much of a surprise, but the fact no one has thought to quantify just what the effects of rooftop solar panels on a building’s temperature are is a little baffling. Read More

The Gemasolar Concentrated Solar Power (CSP) plant near Seville, Spain, has achieved a full 24 hours of solar power production one month after starting commercial operation. The 19.9 MW plant uses a huge array of mirrors to heat a molten salt storage system in the central tower which is then used to run steam turbines, resulting in the ability to continue energy production after the sun goes down. Read More