Wednesday, May 25, 2005

Wind Power USA: First Offshore Wind Farm in the United States To Be Built in Georgia?



Southern Company and the Georgia Institute of Technology announced today that they will collaborate on the Southeast's first offshore wind power project off the coast of Savannah, Georgia.

In their press release the Southern Company have stated that the goal of the project is to determine if offshore wind power is a feasible and efficient renewable energy option for power generation. The project concept is expected to include three to five wind turbines that could generate 10 megawatts of power, enough to power about 2,500 homes.

"We remain interested in finding viable renewable energy options that can play a part in meeting the growing demands of our customers," said David Ratcliffe, president, chairman and CEO of Southern Company. "Our partnership with Georgia Tech presents us a unique opportunity to assess offshore wind power as a cost-effective option for generating power in our region."

The first step of the project, a design and conceptual engineering phase, will start in July using technical expertise from both Georgia Tech and Southern Company. The first phase of the project will evaluate various technology options for wind turbines, platforms/foundations, submarine cabling and grid interconnection. Detailed analyses of a site location and environmental regulations and jurisdictions, including permitting requirements, will also be determined.

The project is a continuation of research conducted by Georgia Tech's Strategic Energy Initiative, a research group devoted to testing both the scientific and economic feasibility of innovative technologies. The research was funded with a National Science Foundation grant focused on innovative energy options in the coastal Georgia region.

Though many discounted the Southeast as a possible site for offshore wind turbines, the Georgia Tech group, led by Dr. Sam Shelton, was able to prove that there may be enough wind for power generation by analyzing six years of wind data collected from Navy platforms located off the coast of Savannah. The strong westerly winds that blow along Georgia's coastal waters coupled with the technological advances seen in the last few decades make this offshore region the best site in the Southeast for an offshore wind demonstration project.

In addition to its plentiful wind, the area is also ideal for offshore wind because of its extensive area of shallow water at distances beyond the shoreline view, which could reduce building costs and avoid the challenges of building and operating wind turbines in deep-water.

The project also has the potential to be the first offshore wind project completed in the United States. There are only two other planned U.S. offshore wind projects, one near Fire Island and Long Island off the coast of New York and another between Nantucket and Martha's Vineyard off the coast of Massachusetts, but both are much larger than the Southern Co./Georgia Tech project and neither has been approved.

Georgia Institute of Technology Official Website

Southern Company Official Website

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Tuesday, March 01, 2005

Solar Energy Nanotechnology: Carbon Nanotubes Used to Improve Efficiency



Georgia Tech Research Institute (GTRI) scientists have demonstrated an ability to precisely grow skyscraper like "towers" composed of carbon nanotubes atop photovoltaic cells to extract more power from the sun.

The nanometer-scale scale towers, which would be coated by the special p-type and n-type semiconductor (p/n) junction materials used to generate electrical current, would increase the surface area available to produce electricity.

Reflections off the towers would provide more opportunity for each photon of sunlight to interact with the p/n junction of the cell. That would increase the power output from PV cells of a given size, or allow cells to be made smaller while producing the same amount of power.

Because their cells will be more efficient, it is believed they can use older and more mature p/n-type material technologies and less costly silicon wafers to hold down costs and rapidly advance the project into commercial products.

Full Azonano Article

Georgia Tech Research Institute (GTRI)

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