The real development of wind power industry began with the oil crisis of 1973. In 1980s, a demonstration wind farm was built and became a new power supply for the power grid. In the following 20 years, wind power has maintained the fastest growing energy position in the world. During the first decade of 2 1 century, the global cumulative installed capacity of wind power increased by nearly 30.00% annually, and wind power technology became more and more mature. In 2007, the cumulative installed capacity of global wind power was 94 1 12MW, an increase of 26.8%. Among them, in 2007, the cumulative installed capacity of wind power in China reached 6,050MW, making it the fifth largest wind power generation country in the world.
There are offshore wind farms in the world and developing countries including Britain, Germany, Sweden and France. In the construction of offshore wind farms, Germany's planning is magnificent, and its cumulative installed capacity ranks first, making it the main position in Europe. Denmark occupies a leading position in the field of wind power generation. Denmark has the largest offshore wind power plant in the world.