The rapid increase in global wind power capacity has resulted in a significant reduction in its cost.

According to statistics, wind power in the world increased by another 24% in 2007 to 59.1 million kilowatts, which is a 12-fold increase from the 5 million kilowatts of 10 years ago. Wind energy is the fastest growing energy source in the world, with an average annual growth rate of 29% over the past 10 years. Contrary to this, during the same period, coal power grew by 2.5%, nuclear power grew by 1.8%, natural gas power generation increased by 2.5%, and oil power generation increased by 1.7%.

Germany is the country with the largest installed capacity of wind power, generating 18.4 million kilowatts of wind power, and 6% of its electricity comes from wind power. Spain ranks second with wind power capacity exceeding 10 million kilowatts and 8% of its electricity comes from wind power. Denmark's wind power capacity is 3.1 million kilowatts, ranking fifth in the world, and it can meet 20% of its electricity demand. It is the largest share of wind power in the world. Denmark’s offshore wind power installations are the world’s leading manufacturers with an installed capacity of 400,000 kilowatts. Globally, the installed capacity of offshore wind power will exceed 900,000 kilowatts by the end of 2006, all in Europe.

Wind power in Europe continues to lead the world with a total installed capacity of more than 40.5 million kilowatts, which accounts for two-thirds of the world's total installed capacity. Nearly 3% of European electricity is supplied by these wind power facilities, and its electricity generation capacity is sufficient to meet the needs of more than 40 million people. The goal set by the European Wind Energy Association (EWEA) is that by 2030 wind power will be able to meet 23% of European electricity demand. EWEA also noted that Europe has enough wind energy resources to meet the electricity needs of all European countries.

The current installed capacity of wind power in Asian countries is close to 7 million kilowatts, of which India is 4.4 million kilowatts, ranking fourth behind Germany, the United States, and Spain. China currently has 1.26 million kilowatts of wind power. With the new "Renewable Energy Law," wind power has begun to grow at a rapid rate. This law gives tax incentives and subsidies for wind power generation. The goal is to increase wind power capacity to 30 million kilowatts by 2010. Experts in the wind power industry in China have even predicted that by 2050 China’s wind power production capacity will reach 400 million kilowatts. In comparison, China's total generation capacity at the end of 2007 was 356.1 million kilowatts.

At the end of 2005, Canada’s wind power capacity was 680,000 kilowatts, which increased to 1.2 million kilowatts at the end of 2006. The federal government of Canada plans to increase the installed capacity of wind power to 4 million kilowatts by 2010, and its provincial governments are even more appetite. It is planned that by 2015, the combined installed capacity will reach 9.2 million kilowatts.

Overall, the cost of electricity generation for the world's high-performance wind farms has dropped by nearly 90% since the 1980s, and has now fallen to 4 cents/kWh or even lower. In some markets, wind power is already cheaper than traditional energy generation. The European Wind Energy Association predicts that the cost of wind power will drop to 3 cents/kWh by 2020. The decrease in wind power generation costs was mainly due to technological advancement, lower financing costs for wind power projects, and the economic scale of turbines and parts manufacturing and construction.

The rapid growth of wind power in the world has largely benefited from continuous technological innovation. Modern turbines are taller, and rotating blades are longer than they were 20 years ago, generating 200 times more power than before. The "fuel" of wind power generation is not money and it is inexhaustible. 75% to 90% of its power generation cost is to build and construct wind turbines and connect them to the power grid. After the turbines are installed, the remaining costs are mainly turbine operation and maintenance fees, land use fees and property taxes.

The energy markets of all countries in the world must be regulated by the government. There are about 48 countries that have regulations or laws that are conducive to the growth of renewable energy, such as the United States' PTC. However, the political and financial support of countries for the fossil fuel industry over the past decades has often undermined the competitiveness of wind power.

Wind power provides more than just affordable clean energy. The price of wind power is stable and is not affected by the fluctuation of fossil fuel prices. Wind power can support local economic development because it can provide employment opportunities and land use fees, and the relevant taxes are likely to remain in the local area. In the end, the wind is inexhaustible and it can be used for a long time to ensure energy security.