The wind is faster at higher altitudes and wind power is directly proportional to wind velocity cubed. But mounting a turbine up high makes it more expensive to install and maintain, and requires a stronger tower to support such a top-heavy structure. Engineers at SheerWind have a solution: “scoop” the air from up high and bring it down low to drive a ground-level turbine. Oh, and while they’re at it, how about amplifying the wind speed too? SheerWind coined the term INVELOX - INcreasing the VELOcity of wind - to describe its innovative design. Using a giant omni-directional funnel whose mouths are mounted at the top of a tower, INVELOX brings the wind down to ground level and sends it out through a narrow neck, which increases the wind speed, much like putting your thumb over the end of a garden hose and leaving a tiny opening will increase the water velocity. This makes the turbine smaller, decreasing its cost. And because the turbine is on the ground, routine maintenance doesn’t require climbing a tall tower. Funnel mouths facing all directions eliminates the need for the turbine to rotate towards the wind, resulting in fewer moving parts, less complexity, and increased reliability. Since traditional turbines have relatively high start-up speeds (8 MPH or 3.6 m/s is typical), they can’t generate electricity at lower speeds. Because the INVELOX design increases the speed of the wind before it reaches the turbine, it allows the system to generate power at wind speeds as low as 2 MPH (0.9 m/s).
Commercial production of solar windows, using the patented SolarWindow spray-on solar power coating system, may be just around the corner. A recent announcement from US building integrated photovoltaics (BIPV) developer New Energy Technologies Ltd. (which we’ve been following for years) has us feeling that the time may soon come. As per New Energy Technologies’ recent announcement, the big news is that the fabrication time of the technology has been greatly reduced. The fabrication process, which involves methodically spraying layers of extremely small solar cells onto glass, has been reduced from a couple of days to only a couple of hours. According to the company, the process has been cut to 1/6 of the previous fabrication time. And perhaps as significantly, New Energy has also reported that it has achieved “a two-fold increase in power conversion efficiency” and improved the transparency in the glass.
Thanks to The Solar Foundation (TSF), individuals can now learn more about the solar industry in their backyard, their neighboring states and across the country. On April 18, TSF introduced a new interactive map that showcases the nearly 120,000 jobs in America's booming solar industry in 2012. This is the first time that the public can easily access the data on a state-by-state basis, and explore what parts of the solar industry are biggest—including manufacturing, installing, sales, project development and associated jobs.
The debate of the PTC just took too long and put the players to uncertainty. Installations were pushed in 2012 to record level of almost 13 GW. This year will be a big dip to estimated 4 GW or so and midterm the installations should level on 7 GW level.
The Thomonde battery bank was designed for 40 percent depth of discharge and only one day of autonomy due to the large loads of some of the medical equipment and the availability of the diesel generator.
I compared the cost per watt to install a standard pole mount, such as a DPW, and found it cost the same as putting up a standard tracker. And of course by tracking you get the additional power.
In areas of the Mojave that are ecologically intact, renewable energy development poses a major problem for plants, animals, and other species. Some major issues include: habitat destruction and fragmentation, water use, and bird mortality.
Sun Concept, Ampulse, Evergreen, Solyndra: the long list of defunct solar companies is enough to give pause to anyone trying to enter the business. But at least one company, SolarCity, has been succeeding where so many others have failed. Its secret? Staying away from manufacturing and focusing on installation. SolarCity was founded in 2006 by Lyndon and Peter Rive, on the advice of their cousin, Elon Musk, the Paypal founder who went on to start Tesla Motors and SpaceX, and is enjoying something of a moment. Tesla Motors just posted its first quarterly profit. And SolarCity, which went public last January, has seen its stock more than triple. Instead of designing solar panels, the Rive brothers decided to find ways to get solar panels onto people’s roofs. They settled on a sort of lease arrangement: SolarCity installs the panels for free on customers’ roofs and then sells them the energy the panels produce for the next 20 years, at a rate lower than charged by the local utility. As the owner of the panels, SolarCity also reaps the valuable tax credits associated with clean-energy production. This business model, with high upfront costs for gradual returns spread out over decades, doesn’t lend itself to immediate profits. On Monday, the company posted a $31 million loss. So far investors seem patient. “The stock is outperforming the results,” an analyst for Raymond James & Associates told Bloomberg. Lyndon Rive, in an interview with CNN, pointed out the irony that as soon as SolarCity show a profit, it’ll be a warning sign that recurring revenue has outpaced installations and the company has stopped growing.
The European Union (EU) is moving ahead with tariffs on imported Chinese solar panels in an effort to protect its own module makers. European Commission (EC) Trade Head Karel De Gucht will recommend the EC impose anti-dumping (AD) charges similar to those imposed last year by the U.S., according to Reuters. The tariffs will average 47.6 percent for most of the 100-plus Chinese manufacturers found by the EC to have been involved in the dumping but will vary by the extent of the manufacturer’s dumping and the extent of their cooperation with the EC’s investigation, according to the Wall Street Journal, which reviewed the preliminary document. Suntech Power Holdings (NYSE:STP) and its subsidiaries will be charged tariffs of 48.6 percent, LDK Solar (NYSE: LDK) will pay 55.9 percent, Trina Solar (NYSE:TSL) will pay 51.5 percent, and JinkoSolar (NYSE:JKS) will pay tariffs of 58.7 percent, WSJ reported. Companies that did not cooperate with the EC investigation will pay a tariff of 67.9%. The investigation covered EU imports of crystalline silicon photovoltaic (PV) panels, cells, and wafers valued at $27.6 billion in 2011, which amounted to more than half the global PV market, according to Bloomberg. The Chinese companies, Bloomberg added, owned almost no global PV market share in 2004 but controlled 80 percent of the global market by 2011.
In a U.S. patent application, a little-known Maryland inventor claims a stunning solar energy breakthrough that promises to end the planet’s reliance on fossil fuels at a fraction of the current cost – a transformation that also could blunt global warming. Inventor Ronald Ace said that his flat-panel “Solar Traps,” which can be mounted on rooftops or used in electric power plants, will shatter decades-old scientific and technological barriers that have stymied efforts to make solar energy a cheap, clean and reliable alternative. “This is a fundamental scientific and environmental discovery,” Ace said. “This invention can meet about 92 percent of the world’s energy needs.” His claimed discoveries, which exist only on paper so far, would represent such a leap forward that they are sure to draw deep skepticism from solar energy experts. But a recently retired congressional energy adviser, who has reviewed the invention’s still-secret design, said it’s “a no brainer” that the device would vastly outperform all other known solar technology. Ace said he is arranging for a national energy laboratory to review his calculations and that his own crude prototypes already have demonstrated that the basic physics for the invention work.
Tom Kiernan, the American Wind Energy Association's (AWEA) incoming CEO, took to the stage Monday morning to briefly greet attendees during the opening general session at WINDPOWER 2013, being held in Chicago through May 8. AWEA recently named Kiernan to replace former CEO Denise Bode, who resigned in December 2012. Displaying a warm and enthusiastic smile during the opening session, Kiernan laid out in broad strokes some of his early priorities for when he takes over the post on May 28. He told attendees that among his first tasks will be to develop a long-term strategy to further galvanize both the wind industry and AWEA. He also spelled out to attendees how they can be their own best advocates. “With fewer legislative vehicles moving [in Congress], we need a better, more integrated advocacy plan, and that needs to be inclusive to all of you,” he said. Citing well-organized and -funded opponents, Kiernan called for the industry to develop a more diverse and broader coalition. He also said that AWEA would begin to devote more resources to its nine regional partners, which often perform key legislative advocacy at both the state and regional levels.
Coming off a record year in 2012, the industry looks forward to build on that momentum at AWEA WINDPOWER 2013 taking place in Chicago, IL from May 5th - 8th. WINDPOWER 2013 will provide exhibitors the opportunity to showcase their products and services to more than 10,000 individuals from the entire wind energy industry coming from across the U.S. and around the world. Exhibitors include manufacturers, developers, contractors, consultants, suppliers/service companies, electricity generators/utilities, financiers, insurance companies, research institutes, and many more. WINDPOWER also hosts hosts many impressive features, events, and attractions, providing tons of opportunity to learn about the industry, network, and expand your business. For all the news and press releases from this years show make sure to stay tuned to AltEnergyMag's special WINDPOWER Newspage.
MidAmerican Solar and SunPower Corp. (Nasdaq: SPWR) marked the start of major construction at the Antelope Valley Solar Projects – two projects co-located in Kern and Los Angeles counties in California – with a community celebration. The 579-megawatt development will employ approximately 650 workers during a three-year construction period; generate more than $500 million in regional economic impact, the majority of which will be generated during construction; and serve California's growing electricity demand with clean, renewable solar power. The Antelope Valley Solar Projects make up the world's largest solar power development under construction. When complete, the projects will provide enough energy to power approximately 400,000 average California homes. "The Antelope Valley Solar Projects are already creating needed jobs and economic opportunity in local communities, while at the same time, providing direct, long-term environmental benefits," said Paul Caudill , president of MidAmerican Solar. "We look forward to continuing our involvement in the Rosamond, Lancaster and Palmdale communities and, as we move forward, in the surrounding areas. The MidAmerican Solar team is committed to working hand-in-hand with the development's neighbors and stakeholders. We also look forward to providing a reliable source of renewable energy to our customer Southern California Edison."
It’s a portable socket that gets its power from the sun rather than the grid. You plug into a window instead of into the wall. It’s easy. That was the whole point, according to the designers, Kyohu Song and Boa Oh: “We tried to design a portable socket, so that users can use it intuitively without special training,” they write. It is really simple. The portable socket attaches to a window like a leech to human skin. On its underside, it has solar panels: The solar panels suck energy from the sun. The charger converts that energy into electricity. You plug in to the charger. Even better, the charger stores that energy. After five to eight hours of charging, the socket provides 10 hours of use. You can pop it off the window, stick it in your bag, and use it to charge up your phone with solar energy, even if you’re sitting in a dark room.
China is accused of selling solar panel components to European consumers at prices below fair market value, the European Commission said. The commission announced it opened an anti-subsidy investigation following a complaint from solar association EU ProSun Glass, which said solar glass from China is subsidized and then sold in the European Union at less than market prices. The solar glass market in the European Union is valued at about $260 million. The commission has launched at least two investigations into alleged dumping of solar panel components like solar glass sold in the European Union by Chinese manufacturers. The European Commission said the latest investigation is its own distinct investigation. The investigation is expected to take more than a year, "although under trade defense rules the EU could impose provisional anti-subsidy duties within nine months if it considers these necessary," the commission said.
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The Tile Replacement Mount provides a fast and easy way to install solar on tile roofs while protecting against water intrusion. Simply remove the tile and replace it with the Tile Replacement Mount. Works with all standard curved and flat tile roofs, and all standard rail-based racking systems. Flashed at both the deck and top levels, the mount is fully engineered to meet code requirements and industry best practices. The Tile Replacement Mount features Quick Mount PV's patented Elevated Water Seal technology for optimal waterproofing. Get a free sample and see for yourself!