Solar

A new manufacturing method that incorporates laser technology may result in thin film solar panels that are less expensive and more efficient than anything presently on the market. Currently, a stylus is used to mechanically etch microchannels into such panels, which electrically connect the individual solar cells and allow them to form an array. Researchers from Indiana’s Purdue University, however, are developing a technique in which an ultrafast pulsing laser is used to do the etching. Not only will it hopefully be quicker and cheaper than mechanical “scribing,” but it should also produce cleaner, sharper microchannels that offer superior performance. Read More

Direct observation of sunspots has, more or less, been going on continuously since they were first observed in the seventeenth century. So, you can imagine the puzzled expressions on the faces of astronomers the world over when the phenomena all-but disappeared from view for a couple of years recently. Now, research sponsored by NASA and the government of India has produced the first computer model that explains the prolonged cyclic minima during 2008 - 2009. The simulations suggest that plasma currents deep inside the sun interfered with the formation of sunspots. Read More

Hunting round for batteries to power toys that come “batteries not included” is a common problem on Christmas morning. If there are none to be found then you’d better hope junior likes playing with the box because that new whizz-bang gadget can be decidedly underwhelming without any juice. The Solar Pegasus Flying Horse solves this problem by incorporating a solar panel in the mythological winged horse’s carriage to harness energy from the sun, or nearest available lamp, to power its batteries and keep the kids entertained long after traditional batteries have run flat. Read More

One of the potentially limiting characteristics of solar power is the fact that it takes up a lot of space. Solar panels obviously aren’t going to be of much use if they’re stacked one on top of the other, so instead must be spread out side-by-side, so each one can soak up the sun. Although they’re generally not in the way when mounted on top of buildings, large arrays of solar panels could start to become a hindrance when located on the ground. Tech companies from Israel and France, however, are developing what could be a way of avoiding that situation – floating solar panels that are installed on the surface of existing bodies of water. Read More

Twentieth Century Fox is cranking up the star power at its Century City studios, where Solar Power, Inc. has completed the installation of a large solar array. The 160 kW photovoltaic (PV) solar system was mounted on Fox Studio's historic Building 99 using Solar Power's SkyMount commercial rooftop system, as well as conventional racking. The new PV system is the movie giant's first on-site renewable energy system. Read More

Last September we covered a story about a pressure-sensitive artificial skin developed at Stanford University that is so sensitive it can “feel” the weight of a butterfly. As part of a goal to create what she calls “super skin,” Stanford researcher Zhenan Bao is now giving the artificial skin the ability to detect chemical and biological molecules. Not only that, she has also developed a new, stretchable solar cell that can be used to power the skin, opening up the possibility of an artificial skin for robots that can be used to power them and enable them to detect dangerous chemicals or diagnose medical conditions with a touch. Read More

Developing solar cells that are cheaper to produce and can harness the sun’s energy more efficiently are both important factors in ensuring the widespread use of solar energy to provide a clean alternative to fossil fuels in the future. Stanford researchers have found that adding a single layer of organic molecules can achieve both these goals by increasing three-fold the efficiency of quantum dot solar cells, which are cheaper to produce than traditional solar cells. Read More

Solar cells are the most expensive part of a solar panel, so it would follow that if panels could produce the same amount of electricity with less cells, then their prices would come down. In order for panels to be able to do so using existing cell technology, however, they would need to get more light to the fewer cells that they still had. Mounting the panels on the end of vertical poles to get them closer to the sun is one possible approach, that might work in the town of Bedrock or on Gilligan’s Island. A better idea, though, is to apply a clear layer of solar concentrators to the surface of a panel – and that’s just what HyperSolar intends to do. Read More

You may not have heard of Chinese mobile phone maker Umeox Mobile, but odds are you’ve come across one of their handsets at one time or another without realizing it, as its phones are generally re-branded and sold by operators around the world. The company's latest offering announced this week at Mobile World Congress 2011 is due to hit stores later this year. Named after the Greek god of the sun, the Umeox Apollo sports a built-in solar panel on the back for keeping the phone running when you can’t get to an outlet – provided you can get to some sunlight, of course. Read More