Estimate That China Could Function On Wind Power

October 13th, 2009 BY jennl | No Comments
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According to this article on Science Daily’s website China could possibly function solely on wind power alone in the future. Check out a portion of this interesting article below…
A team of environmental scientists from Harvard and Tsinghua University demonstrated the enormous potential for wind-generated electricity in China. Using extensive metrological data and incorporating the Chinese government’s energy bidding and financial restrictions for delivering wind power, the researchers estimate that wind alone has the potential to meet the country’s electricity demands projected for 2030.

The switch from coal and other fossil fuels to greener wind-based energy could also mitigate CO2 emissions, thereby reducing pollution. The report appeared as a cover story in the September 11th issue of Science.

“The world is struggling with the question of how do you make the switch from carbon-rich fuels to something carbon-free,” said lead author Michael B. McElroy, Gilbert Butler Professor of Environmental Studies at Harvard’s School of Engineering and Applied Sciences (SEAS).

China has become second only to the U.S. in its national power generating capacity— 792.5 gigawatts per year with an expected future 10 percent annual increase—and is now the world’s largest CO2 emitter. Thus, added McElroy, “the real question for the globe is: What alternatives does China have?”

While wind-generated energy accounts for only 0.4 percent of China’s total current electricity supply, the country is rapidly becoming the world’s fastest growing market for wind power, trailing only the U.S., Germany, and Spain in terms of installed capacities of existing wind farms.

Development of renewable energy in China, especially wind, received an important boost with passage of the Renewable Energy Law in 2005; the law provides favorable tax status for alternative energy investments. The Chinese government also established a concession bidding process to guarantee a reasonable return for large wind projects.

“To determine the viability of wind-based energy for China we established a location-based economic model, incorporating the bidding process, and calculated the energy cost based on geography,” said co-author Xi Lu, a graduate student in McElroy’s group at SEAS. “Using the same model we also evaluated the total potentials for wind energy that could be realized at a certain cost level.”

Specifically, the researchers used meteorological data from the Goddard Earth Observing Data Assimilation System (GEOS) at NASA. Further, they assumed the wind energy would be produced from a set of land-based 1.5-megawatt turbines operating over non-forested, ice-free, rural areas with a slope no more than 20 percent.

Article continues here.