Photovoltaic
3D solar towers offer up to 20 times more power output than traditional flat solar panels
While we’ve looked at the development of solar cell technologies that employ nanoscale 3D structures to trap light and increase the amount of solar energy absorbed, MIT researchers have now used 3D on the macro scale to achieve power output that is up to 20 times greater than traditional fixed flat solar panels with the same base area. The approach developed by the researchers involves extending the solar cells upwards in a three-dimensional tower or cube configuration to enable them to better capture the sun's rays when it is lower on the horizon. Read More
Within the Lusatian Lake District in Germany, lies the unique Lausitz Geierswald Resort with its collection of floating residences. Designed by the German architectural firm Steeltec37, the floating village includes a collection of modular buildings designed to offer sustainable living and lakeside luxury. Read More
Home owners looking to embrace solar but concerned about the effect slabs of solar panels will have on the look of their house may soon have an option that blends the old with the new. California-based company Solar3D has announced it is conducting a study to explore the potential for integrating its solar cells directly into roof tiles. While conventional solar cells aren’t really suitable for roof tiles due to their fixed orientation, Solar3D believes its 3D solar cell technology could make such a product feasible. Read More
Boosting solar cell efficiency is seen as a key factor in making them more practical, but there is another way of looking at the matter ... if the price of those cells were lowered, we could generate more power simply by using more of them. That’s where Mississippi-based Twin Creeks Technologies comes into the picture. The company has developed a method of making crystalline silicon wafers which it says could reduce the cost of solar cell production by half. Read More
The soothing sound of canal water gently lapping against wood as you fall into peaceful slumber has got to be one of the best ways to end a relaxing day of leisurely cruising past sights that many Londoners rarely glimpse. Doing so on a vessel that gets the power for its motor, lighting and modern appliances from the Sun, features multi-layer insulation, underfloor heating and a charming wood-burning stove, and is surprisingly bright and roomy inside, seems too good to be true. Meet the Bauhaus Barge, a Dutch-style wide beam houseboat which is all of that and more. Read More
This rather novel solar collector draws inspiration from the lotus flower to provide small-scale solar energy - both electric and thermal - to domestic and small business users. The aptly named Monarch Lotus' (rebranded from the Solar Umbrella) 18 petals unfold to to form a 4-meter (13-foot) diameter flower that will, if development goes to plan, produce 3 kW of photovoltaic electrical power and 3 kW of solar thermal power per 100-kg (220-pound) unit in ideal conditions. Read More
The tiny Swiss town of Tenna has put itself on the eco-map by building an innovative solar-powered ski lift. The solar lift is one of the world's first of its kind, and utilizes a "cable car system" where the solar panels are integrated directly into the lift. Approximately 80 solar panels are incorporated into a 450-meter (492-yard) system that is suspended above the ski lift, which has the capacity to pull 800 skiers up the mountain per hour. To avoid running out of energy during bad weather and snow storms, the ski lift is also connected to the local power supply, so skiers will not be left hanging on in the dark! Read More
I guess I'm lucky that I now live in a part of the world blessed with long sunny days that are perfect for juicing up the battery on my solar device charger. I do have to keep getting up and moving it, though, so that the panels don't fall into the shadows cast by furniture in the room or even the window frames themselves, and reducing its efficiency. Propping the charger up against the glass is one way to ensure maximum exposure to those energy-giving rays, but XDModo has a much slicker solution. Users can stick the 0.68-inch thick Window solar charger to the inside of a glass window with the photovoltaic panels facing out and then feed off a charging cable to a portable device positioned in the cooling shade. Read More
For those unfamiliar with the term, a “whispering gallery” is a round room designed in such a way that sound is carried around its perimeter – this allows a person standing on one side to hear words whispered by a person on the other. Now, scientists from Stanford University have developed a new type of photovoltaic material, that essentially does for sunlight what whispering galleries do for sound. Not only does the material have a structure that circulates light entering it, but it could also result in cheaper, less fragile, and less angle-sensitive solar panels. Read More
MIT envisions DIY solar cells made from grass clippings
Research scientist Andreas Mershin has a dream to bring inexpensive solar power to the masses, especially those in developing countries. After years of research, he and his team at MIT's Center for Bits and Atoms, along with University of Tennessee biochemist Barry Bruce, have worked out a process that extracts functional photosynthetic molecules from common yard and agricultural waste. If all goes well, in a few years it should be possible to gather up a pile of grass clippings, mix it with a blend of cheap chemicals, paint it on your roof and begin producing electricity. Talk about redefining green power plants! Read More