China's energy again, "air" thing? – Energy – Electric Industry –
Weather and economic model based on Chinese and U.S. scientists calculated that by 2030, using wind energy to meet China's growing
Energy Demand while reducing carbon dioxide emissions by 30%. The analysis of wind power experts say, expectations for decades for China to rely solely on wind energy is not realistic.
One by the National Science Foundation, Harvard University and Tsinghua University
Cooperation Study indicates that, according to meteorological data and estimated wind power potential of China in the next 20 years, can provide a carbon-free wind energy, wind power will provide the electricity demand in China. In contrast, if the use of coal-fired thermal power to meet China's increasing energy demand rises every year will produce 3.5 billion tons of carbon dioxide emissions, this number is expected in 2030 than the entire European Union emissions of greenhouse gases and more.
Harvard University led the study, Professor, College of Engineering and Applied Science Michael? McIlroy said: "The world is struggling in the search for how to solve the carbon-rich fuel shift from carbon-free energy issue, the whole world the concern is what the Chinese have alternative ways? "
Wind energy is no longer a "legends"
McIlroy and his colleagues first used to model the existing wind data to quantitative analysis of China's wind energy potential. To do this, they will map of China divided into many small area of 3335 square kilometers of using the last 5 years of meteorological data file generated for each block the wind. Then, each of them in the model by adding an industry standard 1.5-megawatt wind
Generator (Inappropriate use of this model except the terrain, such as steep hills, dense forests and urban areas), and to estimate the energy output of each piece, and finally, through a turbine installation cost function, calculate the cost of wind energy .
The model revealed that in China, concentrated in the vast region northwest of energy costs, provide access and close to prices set by the Government. According to forecasts, wind farm operators to generate electricity 6.96 trillion degrees, this number is the degree of current annual consumption of 2 times the 3.4 trillion, equivalent to the project estimated the total electricity demand in China in 2030.
In the past five years, China's installed capacity of wind power each year in doubles, newly installed in accordance with the pace of 2009, China seems to replace the U.S. as the world's largest new wind power installed capacity market. But the researchers believe that China had barely begun to open the door to tap wind energy potential.
In the next decade, China plans to build seven large-scale wind power base, according to the current 12.2 gigawatts of installed capacity calculations, China has firmly behind the U.S., Germany, Spain, the fourth largest in the world , the equivalent of 24 medium-sized coal-fired thermal power station. But the problem is that these wind turbines and grid connection is not all. In fact, only 0.4% of China's electricity is provided by wind energy, about 3 GW.
Professor McIlroy insisted that his ambitious plan is feasible and worth serious consideration.
"Elusive" in the wind
Justin? Wu is a London called "New Energy
Financial "The company's wind power industry research analyst, said that wind power installed capacity and production is by no means the gap between the marginal, to wind farm connected to the grid is very difficult and expensive, because the wind was on and off continued, this will put pressure on power, he thinks that this study does not take into account the power to overcome this difficulty will require costly upgrades.
Wu said: "The use of existing technology, to make a country's energy supply came from wind power is not possible, because in order to adapt to the stability of the wind does not need smart grid technology has great progress. No Grid energy storage technology or real progress, simply can not do this.
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