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The use of water to harness energy has been around for thousands of years but it is only in the modern times that it has been employed to generate electrical energy, which is called hydropower.

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.

Bayer has honored the Professor Eberhard Jochem of the Fraunhofer Institute for Systems and Innovation Research (ISI) for "pioneering technical and economic contributions to energy efficiency." Professor Jochem's commitment to environmental causes dates to his childhood, when he observed a cloud of pollution darkening his home while returning to the Ruhr district of Germany from a trip through the Netherlands by bicycle. Professor Jochem believes that a "commercially profitable 80 percent boost in energy efficiency in the industrialized nations" is possible before the end of this century. By combining his theotical and practical expertise, Professor Jochem has proven that hypothesis, making him a particularly effective advocate for energy efficiency. The key contributors to this tremendous goal are described further below.

SOLAR cells are expensive, so it makes sense to use them efficiently. One way to do so is to concentrate sunlight onto them. That means a smaller area of cell can be used to convert a given amount of light into electricity. This, though, imposes another cost-that of the mirrors needed to do the concentrating. Traditionally these are large pieces of polished metal, steered by electric motors to keep the sun's rays focused on the cell. But now Cool Earth Solar of Livermore, California, has come up with what it hopes will be a better, cheaper alternative: balloons. Anyone who has children will be familiar with aluminised party balloons. Such balloons are made from metal-coated plastic. Cool Earth's insight was that if you coat only one half of a balloon, leaving the other transparent, the inner surface of the coated half will act as a concave mirror. Put a solar cell at the focus of that mirror and you have an inexpensive solar-energy collector.

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 has a post on Toyota's latest hybrid vehicle design - Toyota's New Hybrid MR2 Revealed!. The Toyota MR2 sportscar is hitting the road, remade from its older version into a Prius-inspired hybrid vehicle. The new MR2 will draw inspiration (and technology) from the iconic Toyota Prius, with the goal of creating a mass market hybrid sportscar that is as fun to drive as it is green. Toyota's development of the MR2 is not to one-up the Tesla Roadster, but rather to create a car that can do a reasonable 0-60mph in seven seconds and get an incredible 60mpg. We are all familiar with Toyota's efforts to create a mass market electric vehicle. The Prius, after all, is the best known green car on the market. So looking to capitalize on such technology while creating a sportier, much more dynamic looking vehicle has great implications for both a consumer market and the corporation's innovation.

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.

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The 2008 figures are in from the new REN 21 Renewables Global Status Report: Renewable power capacity (excluding large hydropower) increased a hefty 16 percent last year, which is remarkable given that world oil use actually declined. Growth in some renewable sectors was even more impressive. Biodiesel production increased 34 percent, and solar power took the prize with a 73 percent jump. Renewable energy has not entirely escaped the impact of the global recession - growth this year will almost certainly be slower - but it is clear that global energy markets have turned a corner. Political support and business investment in new energy sources have reached the point where the new industries appear hard to stop. REN 21 reports that 64 nations now have policies to promote renewable power generation. Scientists, engineers, and entrepreneurs across the globe are responding with unprecedented innovation. Overnight, the energy business has begun to resemble the I.T. industry more than it does the energy industry of the past.

Technology Review has an article on making solar power cheaper using concentrators combined with PV panels - Cheaper Solar Concentrators. Skyline Solar, a startup that today announced its existence to the world, has developed a cheaper way to harvest energy from the sun. The company's solar panels concentrate sunlight onto a small area, reducing the amount of expensive semiconductor material needed to generate electricity. The technology will bring the cost of solar power in line with the average cost of electricity, at least in sunny areas, says Ben Eiref, Skyline Solar's director of product management. Currently, solar power can be far more expensive than electricity from conventional sources; many governments have resorted to subsidies to increase its use.

I read U.S. opens way for wind power off coast and wondered "what's in it for me"? The federal government has cleared the way for developers to plant wind farms in offshore waters on the Outer Continental Shelf, a move that could have a significant impact for North Carolina. ... Eventually, the regulations could help shape energy production in North Carolina, where the Outer Banks jut sharply into the Atlantic. The area has some of the strongest and steadiest winds on the East Coast, according to a report from the U.S. Department of the Interior. ... In a scheme similar to some offshore oil and gas drilling leases, states would get about 27 percent of the revenue sent to the federal government from offshore wind and hydrokinetics leases.

At the end of May, Renewable Energy World's Eize de Vries was invited to Belgium to view the construction of a wind farm that may be providing a view of the future. And a genuine wind industry innovation, Eize de Vries reports, is that the advanced E-126 built-in power electronics will actively contribute towards stabilizing the transmission grid voltage within the entire region. WindFarm Estinnes S.A. is an onshore wind farm that will comprise eleven of the latest generation of Enercon's E-126 direct drive wind turbines, a machine currently rated at 6 megawatts. Each E-126 has a 127-metre rotor diameter - combined with the 135-metre the turbine has a total 198.5 metre installation height. WindVision's Estinnes is expected to generate at least 187,000 MWh per year. And a genuine wind industry innovation, Eize de Vries reports, is that the advanced E-126 built-in power electronics will actively contribute towards stabilizing the transmission grid voltage within the entire region.

Heliodyne 75 liters direct vent gas water heater runs only on natural gas, not on propane or kerosene. The product has been designed in such a way that it has to be installed in certain places where atmospheric units cannot be used.

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