In some places where power shortages are anxious, Inner Mongolia, China’s largest “power source,” is worrying about how to send surplus electricity. Because there is not enough grid access, the total installed capacity and delivered power are among the highest in the country. Inner Mongolia has nearly 70 billion kWh of electricity each year. As a result, about one-third of the thermal power units in Mengxi Power Grid were forced to shut down, and more than 42% of the wind turbines were abandoned. According to calculations, Inner Mongolia gives up about 82% of the electricity consumed in Beijing in one year.

The problem of grid connection and consumption has become a major factor affecting the development of wind power. China's wind farms are mainly distributed in the “Three North” regions (Northeast, Northwest, and North China), but the electric power load is mainly in the eastern coastal areas. The geographical distribution of wind resources does not match the power load, leading to wind power grid integration and market acceptance. The problem was highlighted and the wind dispelled was prominent.

The installed capacity ranks first in the world, but the development of the external environment has been devastated; the wind curtailment and power curtailment affect the investment confidence of wind power and restrict the momentum of wind power development.

In 2012, the nation’s wind curtailment capacity for wind power output was about 20 billion kilowatt-hours, accounting for 20% of the total generation of actual wind power in that year. In addition, in 2012, China’s installed wind power capacity was below the industry’s expected average annual growth rate. This not only reduces the investment income of wind power developers, but also affects investors' further investment in wind power.

The reporter learned that although China’s cumulative wind power installed capacity ranks first in the world, the external environment for the development of wind power has begun to face crises. With the development of wind power, the operating rules and management systems of China's existing power systems are not compatible with it. The planning of various types of power supplies lacks effective convergence, and the wind power grid-connected technologies and management levels need to be improved. The existence of these problems makes the current phenomenon of abandoning wind curtailment more serious, which restricts the momentum of sustained development of wind power.

The difficulty in absorbing wind power is caused by its intermittent and fluctuating characteristics; at a deeper level, there is a lack of adjustments to the power management system and policies for the characteristics of new energy sources.

The “Three North” region is still the main area for the development of wind power in China, and the curtailment of wind curtailment is also the most prominent here. The period and reasons for restricting wind power output from the Northeast and other regions are mainly due to the low valley load period during the winter night, because there is a contradiction between wind power and heat supply. On the one hand, the wind power during this period contributed a lot. On the other hand, there is a demand for heating that is more rigid in the local area, but the power load during the night trough is very low. In addition, there are also wind power cuts in the northwest region caused by insufficient capacity of transmission lines.

The problem of difficulty in absorbing wind power in various places is, on the surface, caused by the intermittent and volatile nature of wind power. From a deeper level, it is the lack of adjustment of power management systems and policies for new energy sources.

In order to solve the bottleneck problem of wind power development, China has established the basic direction for wind power development in the future: First, focus on the development and decentralization of development; second, actively implement the power transmission channel and the elimination in the "Three North" and eastern coastal areas with abundant wind energy resources. The Naihan market steadily promoted the construction of large-scale wind power base projects. Third, it accelerated the development of wind power in inland areas with relatively abundant wind energy resources and good electricity consumption conditions. Fourth, it encouraged all regions to build decentralized wind power projects connected to low-voltage distribution networks. Actively and steadily promote the development of offshore wind power.

At the same time, actively promote the coordinated operation of wind power, wind power and industrial loads, expand the scope of wind power deployment, strengthen the construction of wind power transmission channels, optimize the grid operation scheduling of wind power, and improve the efficiency and efficiency of wind power development.

Offshore wind power, low wind speed wind power, wind farm operation and maintenance bring new economic growth point in the industry

According to the “Twelfth Five-Year Plan” for wind power development, 5 million kilowatts of offshore wind power will be planned to be built in 2015, and 10 million kilowatts of preliminary work will be carried out. By 2020, 30 million kilowatts of offshore wind power will be planned and constructed. To accomplish this goal, domestic wind power equipment manufacturing companies are committed to developing large-capacity wind turbines and investing in offshore wind power development.

At the same time, many developers have chosen to develop wind farms in areas where Class III or IV wind resources are common but wind power conditions are better. As a result, wind turbines adapted to high altitude, low wind speed, low temperature and other environmental characteristics came into being. According to reports, due to the rapid development of low-speed wind turbine technology, wind power development in China's central, eastern and southern regions has formed a very considerable scale, creating a new growth point.

As the number of wind turbines out of the warranty period has gradually increased, some complete machine companies have begun to take into account the professional operation and maintenance of wind farms. Wang Jun, Director of the New Energy Division of the National Energy Administration, emphasized that with the rapid increase in wind power installed capacity, various accidents caused by wind power quality problems are also increasing. Therefore, ensuring the quality of wind power equipment is an important guarantee for sustainable development of the wind power industry. He hoped that the equipment manufacturers could attach great importance to quality issues and strengthen technology research and development to continuously improve the technology of wind turbine equipment.

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