At present, wind power has become the fastest growing electric power industry sector. Europe is the largest recipient of wind power. Hopefully the next 10 years, the European wind power generating capacity will account for the additional 1 / 4. Wind turbines are built on the coast side, even more than its wingspan of a basketball court. Today, the largest commercial wind turbines have a wingspan of 104 meters, generating 03,600 kilowatts of power, enough to power 1,000 U.S. households. In February, "the German power system" in the vicinity of Hamburg, initiated a demonstration wind turbine, generating power for 05,000 kilowatts, and its wingspan of 126 meters. U.S. General Electric Company has designed 70 meters leaves, that is 140 meters wingspan of wind turbines. Although GM has yet to when it plans to build such large-scale wind turbine, it is believed that the size of wind turbines generating power to 07,000 kilowatts. 100 such wind turbines generating power for 700,000 kilowatts, equivalent to a large-scale conventional power station. U.S. National Wind Technology Center Director Strip homes, said: "From an economic perspective, the turbine blades and the longer the better economic returns. Wind power industry and federal researchers aim is the establishment of 3 cents per unit of wind farms . The current cost of wind power is 4.5 cents. Wind power per unit cost of 3 cents a share, will defeat the 3.5 cents per unit, the most effective oil burning power plants. "Strip homes, said:" If the process smooth, these giant Wind turbines in 2012 for large wind power plants. University of Massachusetts, but the wind experts McGovern noted that relying on such a very large wind turbines is not without risk. Turbine is, if they are a Taiwan's failure, on the very high cost. McGovern said: "Sooner or later they will be made great, then they will lose all of its assets. The development of power generation from 0.5 to 07,000 kilowatts of wind turbines, is still immature stage, which can not reliably estimate the cost of their deployment. "Last year, the global wind  generators capacity by 20 percent the rate of growth. Network operators are trying to wind power will enter the existing network. However, due to wind power production by a greater impact on the climate, which is a huge power grid Challenges. The electricity grid must maintain a balance of supply and demand. If the wind power and hydropower to supply, you can resolve these issues, for example, last year, "Canadian hydropower development", in the southern province of Alberta near the hydropower station, built A wind power plant. Grid managers have recourse to advanced wind forecasting, to help them plan ahead to make power supply, if necessary (wind-hour), from other power purchase some other power source.