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WASHINGTON (AP) - An Energy Department report concludes that wind turbines can produce a fifth of the nation's annual electricity needs within about two decades. That is about the same share of electricity produced today by nuclear power. Wind energy today accounts for only about 1 percent of the nation's electricity. The government report to be released Monday said by 2030 wind energy could account for 300,000 megawatts of power, or about 20 percent of the total electricity generated.

Working in Haiti, Shawn Frayne, a 28-year-old inventor based in Mountain View, Calif., saw the need for small-scale wind power to juice LED lamps and radios in the homes of the poor. Conventional wind turbines don't scale down well-there's too much friction in the gearbox and other components. "With rotary power, there's nothing out there that generates under 50 watts," Frayne says. So he took a new tack, studying the way vibrations caused by the wind led to the collapse in 1940 of Washington's Tacoma Narrows Bridge (aka Galloping Gertie).

"The world's southernmost wind farm, in Antarctica, is now operational. The Ross Island wind farm will supply about 11 percent of the power to New Zealand's Scott Base and the American McMurdo Station. Previously, the two sites relied on diesel-powered generators for electricity. The wind farm will cut diesel consumption by about 463,000 liters a year and reduce carbon dioxide output by 1,370 tons annually, according to New Zealand-based Meridian Energy, the project's developer. The three turbines, each 37 meters tall and 33 meters wide, are generating 330 kilowatts of power."

Duke Energy announced that it will expand its renewable power business with the development of a second wind energy project in Cheyenne, Wyoming. The company also announced that it has signed a power purchase agreement for the project and has secured turbines.

BTM Consult has released its 14th annual update on the status of the international wind power industry. According to the reports, 2008 saw the highest ever level of wind turbine installations. With 28,190 megawatts (MW) of new capacity installed, the growth rate was 42% compared with 2007, resulting in a cumulative worldwide total of 122,000 MW. Although it will be impacted by the current economic crisis in 2009 and 2010, the future looks bright for the wind power industry, BTM said. The report's five year forecast up to 2013 projects significant growth. Over the past five years the average growth in annual new installations has been 27.6 % per year. In the forecast up to 2013 an average annual growth rate of 15.7 % per year is expected. More than 200 GW of new wind power capacity could come on line before the end of 2013.

Inhabitat is doing a "Energy 101" series to explain why smart grids are necessary - Energy 101: Where Does Our Power Come From ?. Today we're excited to announce the launch of our new Energy 101 series,. in which we'll be exploring the future-forward technologies that stand to upgrade our grids, reduce our energy footprint, and slow the speed of global warming. Unless you have been living in a cave for the past few years, you've probably heard terms like "energy conservation", "off-grid energy", and "smart grid" tossed around. But before getting into the nitty-gritty of transitioning to renewable energy, we should stop and examine where exactly our power comes from now. Unless you derive all your power from on-site renewable energy sources like solar panels or wind turbines, chances are that you're connected to the power grid, a vast network that delivers electricity from suppliers to consumers. Right now, most energy on the grid comes from generating plants. These plants still usually get power from traditional sources like coal, nuclear, and hydroelectric dams. But as concerns over carbon emissions, safety, and long term sustainability of these sources grow, electrical utilities have begun to switch over to renewable energy sources.

Renewable Energy World has a report on a new Scottish wind farm - Europe's Largest Onshore Wind Farm Is Switched on in Scotland. Today, the final phase of Europe's largest onshore wind farm is being turned on in Scotland. The 322-megawatt (MW), 140-turbine Whitelee wind farm was built by ScottishPower Renewables, which is part of the Spanish power business Iberdrola. In Spain and internationally, the Iberdrola Group, is the world's largest developer of wind power, with nearly 9700 MW of installed capacity. The wind farm uses Siemens 2.3-MW machines. Positioned 370 meters (1200 feet) above sea level, 15 kilometers (9 miles) outside of Scotland's largest city, Glasgow, the new wind farm has over half a million people living within a 30-km radius of it. It's one of the first large-scale wind farms to be constructed close to a large population center. The first phase of the wind farm started feeding power into the grid in January 2008.

DONG Energy, E.ON and Masdar have announced that they will invest EUR 2.2 billion (US $3 billion) in building the first 630-megawatt (MW) phase of the London Array offshore wind farm in England's Thames Estuary. The wind farm is set to be build the world's largest offshore wind farm. The consortium hopes the first phase of 630 MW will be completed and generating in 2012. The first phase will consist of 175 turbines. The announcement comes after the UK Government's recent proposal to increase its support for offshore wind power. The partners are satisfied that the project is now financially viable and are now keen to push ahead with construction and to produce the first renewable power in 2012. Onshore work is now due to start in the summer, with offshore work due to start in early 2011.

President Obama's proposed $9.9 billion Energy Department budget contains up to $28 million for a Pantex wind farm that would be designed to meet the nuclear weapons plant's energy needs. The Pantex Renewable Energy Project would be built on land in the vicinity of the plant and could generate surplus electrical power that could be sold to utilities, according to budget documents. Preliminary plans call for the wind farm to be built by 2012. The project's overall scope would depend on future funding, but plans call for enough wind turbines to generate up to 75 megawatts of electrical generating capacity. Initial funding would only support construction of a 10- to 15-megawatt system.

REW reports the world's biggest solar thermal tower has opened in Spain - World's Largest Solar Power Tower Commissioned. Abengoa Solar has begun commercial operations of the world's largest solar power tower plant, a 20 MW installation. The company claims that the performance of the power plant, the so-called PS20, has exceeded its design output in the wake of its three-day production and operational testing period. Located at the Solúcar Platform, near Seville, Spain, PS20 is the world's second power tower plant in commercial use and features a number of significant technological improvements with respect to its predecessor, PS10. These enhancements include a higher-efficiency receiver, various improvements in the control and operational systems, and a better thermal energy storage system. PS20 consists of a solar field made up of 1255 heliostats with a surface area of 1291 square feet each. This reflects the solar radiation it receives onto the receiver, located on the top of a 531 foot-high tower, producing steam which is converted into electricity generation by a turbine. Plant construction was carried out by Abener.

SHANGHAI is rich in clean green wind power and the city is constructing more and more windmills as part of a sustainable energy plan. Zhang Qian flips the switch. The sails of hundred-meter-high windmills rotate in the wind in the mudflats of suburban Shanghai. Row upon row of turbines with huge vanes are generating new clean electricity. Shanghai is rich in sustainable wind resources and is increasing its wind energy capacity as part of an overall plan to reduce pollution and develop clean energy.

Nearly 100 MW of turbines are expected to come from General Electric, leaving the utility and energy developer looking for more suppliers to meet a scheduled late-2010 commercial launch.

Wind power, which is one of the most renewable energy sources known to man, is harnessed through wind turbines in wind farms.

The article "Renewable energy potential" (Work&Money, Editor's Choice, June 7) provided interesting and useful information. Now it is time to begin to use more renewable energy in North Carolina. One of our electric utility companies should develop a pilot project in one of the high-wind areas off the North Carolina coast. This energy could be used to provide some power to Elizabeth City, Manteo or any other city located on the northern part of our coast. Our electric utility companies have many intelligent engineers who could use new technology to build wind turbines that can withstand strong storms. If other states in the Northeast can build wind farms off their coasts, then North Carolina can surely do the same.

The Guardian has an article on a report from Greenpeace, the European Solar Thermal Electricity Association and the International Energy Agency's SolarPACES group on the potential for solar thermal power to supply a large proportion of our energy needs (why they limit it to 25% is a mystery to me) - Concentrated solar power could generate 'quarter of world's energy'. Solar power stations that concentrate sunlight could generate up to one-quarter of the world's electricity needs by 2050, according to a study by environmental and solar industry groups. The technology, best suited to the desert regions of the world, could also create hundreds of thousands of new jobs and save millions of tonnes of CO2 from entering the atmosphere. Concentrating solar power (CSP) uses mirrors to focus sunlight onto water. This produces steam that can then turn turbines and generate electricity. It differs from photovoltaics, which use solar panels to turn sunlight directly into electricity and can operate even on overcast days. CSP only works in places where there are many days with clear skies and is a proven, reliable technology. At the end of 2008 CSP capacity was around 430MW, and worldwide investment in the technology will reach

The state began its pursuit of offshore wind generation Tuesday, a move that could lead to building 400-foot-tall turbines off Ocean City. The Maryland Energy Administration asked wind developers to express their interest in building industrial-size windmills a dozen or more miles off the state's 31-mile Atlantic coastline. At the same time, the energy agency said it is launching a study to gauge the economic viability and environmental impact of such a project.

Is it Possible to Increase Your Vehicle Gas Mileage Today, To Convert Your Car To Run On Water And Save Over 40% Of Fuel Cost Every Month? The real Truth: Water can be used as a supplement to gasoline that will extend your gas millage 40% or more. In fact, using water and gas together can not only increase your vehicle's fuel efficiently it can improve emissions quality, and save you money. Check out the video below to see how you can run your car on water.

Feed-in Tariffs in 70 words or less: Government and power utility offers premium, long-term contracts to residential, commercial, and industrial citizens to generate power on-site. Rates are based on the cost of buying and installing various renewable energy systems, but only paid on actual power produced. Citizens purchase back grid power, as per usual, from utility at regular prices. Increase in cost is paid for with a small surcharge to all electricity ratepayers.

PETROL should be included in Australia's carbon emissions trading scheme, but low-income households should be compensated for higher power and fuel bills, the nation's top climate change expert has warned. Issuing a stern challenge to the Rudd Government to include petrol in the scheme, when it begins in 2010, Ross Garnaut warned of dire consequences for Australia's natural icons unless urgent and decisive action is taken.

According to the American Wind Energy Association (AWEA), US wind producers enjoyed another record year of growth in 2008-the third in a row. The country now has an installed wind power capacity well in excess of 21,000 megawatts (MW), enough to supply electricity to over 5.5 million American homes. According to Randall Swisher, AWEA Executive DIrector, "Wind energy installations are well ahead of the curve for contributing 20% of the U.S. electric power supply by 2030 as envisioned by the U.S. Department of Energy."