National Renewable Energy Laboratory (NREL) of the US Department of Energy has partnered with Solarmer Energy for signing a Co-operative Research and Development Agreement (CRADA) in terms of collaborating for improving the lifetime of plastic solar cells that seems to be a new kind of solar conversion technology that is quite promising.
NRG Solar has teamed up with US Solar in the process of acquiring its solar development portfolio, for projects on nine sites in the states of Arizona and California. The development projects are in the size range of 20 MW to 99 MW, having the potential to become operational sometime between the years 2011 and 2013.
Kalahari GreenTech has unveiled its solar collector details. Wind as well as solar have been fast becoming leading renewable energy sources. The company designs, produces and also provides solar collectors, wind turbines and other forms of sustainable energy technologies.
Ascent Solar Technologies has bagged the Darpa Contract for its PhotoVoltaics Program. Darpa (Defense Advanced Research Projects Agency) has awarded the multi million dollar contract to Ascent Solar for its low cost, high efficiency portable photovoltaics program.
Mistaya Engineering and Second Wind have partnered to integrate the Windographer analysis software of Mistaya Engineering and the wind data collection technology of Second Wind into a solution for helping energy companies select and evaluate the most productive locations for installing their wind turbines.
Yingli Green Energy Holding Company Limited has announced that one of its subsidiaries Yingli Green Energy Americas, Inc. has inked a PV module supply contract with DC Power Systems till the close of 2010.
The wide bodied nacelle incorporated in the wind turbine comprises a central nacelle, two housings on the sides and a hub and allows easy access for maintenance. The electrical yaw and pitch control incorporated in this wind turbine maintains the rotor speed stably and cuts off the rotation during excessive winds.
The two sectional blade utilized in the wind turbine measuring a total of 62.50 m in length has an inboard section measuring 30.50 m and an outboard section measuring 32.00 m in length. The rotor of the wind turbine measures 128 m in diameter and offers a swept area of 12,868 m².
The Biodiesel is produced from a variety of first use vegetable oils and tested with all the conventionally designed diesel engines and proved to produce reduced level of contaminating emissions.
This wind turbine starts operating at 4 m/s wind speed, produces its optimal power of 3 MW at 12.5 m/s wind speed, and ceases its operations when the wind crosses the speed range of 20 to 25 m/s.
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