Tuesday, April 27, 2010

Wind Turbines are able to "see" the wind with the innovation from the Riso National Laboratory


Risø DTU has recently completed the world's first successful test on a wind turbine with a laser-based anemometer built into the spinner in order to increase electricity generation."The results show that this system can predict wind direction, gusts of wind and turbulence. So we estimate that future wind turbines can increase energy production while reducing extreme loads by using this laser system, which we call wind LIDAR," says Torben Mikkelsen, Professor at Risø DTU.

This new Danish laser technology means that wind turbines are able to "see" the wind, before it hits the blades. By 'predicting' the wind, the wind turbine can optimize its position and adjust the blades so that the wind is used more efficiently, and the wind turbine lives longer.

The wind turbine industry is going to grow tremendously in the next years due to a global focus on renewable energy and climate change. New high-tech research will integrate "laser providence" and "smart blades" into the turbines, allowing them to operate better and last longer, thereby maintaining the competitiveness of the Danish wind power industry.

Increased electricity production from wind turbines:

It is expected that the technology can increase energy production by up to 5%, primarily because it is possible to use longer blades. For a 4 MW wind turbine, this means a financial gain of 200,000 Danish kroner a year. Compared to the Danish Energy Agency's predictions, this technology could cut CO2 emissions by 25,000 tons by 2025, if every 10th turbine is equipped with a wind LIDAR. At the same time, the technology can be combined with "smart blades" and thereby increase longevity.

"The LIDAR system can be used to increase blade reliability by making the blades cope better with the irregularities of the wind. Subsequently it is possible to produce larger blades. This increases energy production, and power from wind energy becomes more competitive, says Lars Fuglsang, Global Research Director of LM Glasfiber;

"The LIDAR systems allows a paradigm shift in the way of controlling wind turbines," says Jakob Dahlgren Skov, CEO of NKT Photonics A/S.

Ref: The Science Daily Magazine

Friday, April 23, 2010

Sun Edison to build Europe's biggest Solar PV Power Plant


SunEdison is a division of MEMC Electronic Materials, Inc. They have bagged a project to develop and construct a photovoltaic solar power plant in Northeastern Italy, near the town of Rovigo. This solar power plant will have a capacity of 72 Megawatt (MW). This will be the largest solar power plant in Europe. SunEdison is a North American company. It finances, installs and operates distributed power plants using photovoltaic technologies. In 2009, SunEdison delivered more kilowatt hours (kWh) of energy than any other solar services provider in U.S.A.


The stats say that solar power plant would provide power to 17,150 homes and it would result in reducing 41,000 tons of CO2 in the atmosphere. This amount will be akin to taking off 8,000 cars from the road. The project is expected to be completed by the end of 2010.

Carlos Domenech is the President of SunEdison. He is speaking about his solar projects, “SunEdison is focused on enabling the growth of global solar markets through strong capabilities in project finance, engineering, low-cost procurement and operations and maintenance services.”

SunEdison’s solar power plant would cover an area of as large as 120 soccer fields. Once completed, the plant will be spread over 9.15 million square feet of area.

Renzo Marangon is the government official of the Veneto region. He expresses his views about solar project, “Veneto is taking decisive action to advance the use of clean, renewable energy sources. At the same time, this project is expected to create over 350 local construction jobs and build expertise in advanced energy technologies. We expect Rovigo to serve as a European model for large-scale, alternative-energy projects.”

This solar-power plant will enjoy the distinction of being the largest in Europe. Presently, the largest solar power plant exists in Olmedilla, Spain. Its capacity is is a 60MW. Another solar power plant is in Strasskirchen, Germany. It has the capacity of 50 MW.

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