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What are the advantages of decentralized wind power in the frequent occurrence of favorable policies and the layout of the five major central power enterprises?

Release time:2023-07-05   Click:127


Abstract from A little Wind Energy

    Distributed wind power is one of the "troika" of wind power in China. Compared with large-scale bases, distributed wind power is the most flexible wind power development model with small scale and short construction period. Distributed wind power is not restricted by UHV transmission lines, and the method of nearby access to the distribution network and local consumption has become an important support for achieving the goal of "dual carbon".

    After entering 2023, there has been a resurgence of calls for the development of decentralized wind power from the central government to local governments, from factories to rural areas, and the passion for the development of decentralized power generation has been ignited again. Many enterprises have begun to vigorously layout!

    First, frequent favorable policies.

    A few days ago, the National Energy Administration once again held a relevant symposium to continue to solicit industry opinions on the policy landing of the "thousands of villages to control the wind plan". An informed source told reporters that soon, the long-brewing wind power to the countryside related documents will be officially issued.  

    The reference to "thousands of villages and villages to control the wind plan" first appeared on February 26, 2021, when the National Energy Administration issued a Notice on Matters related to the development and construction of wind power and photovoltaic power generation in 2021 (Draft for comments), which proposed to "actively promote the construction of distributed photovoltaic power generation and decentralized wind power." Combined with the rural revitalization strategy, launch the ''thousands of villages wind control plan'' and ''thousands of villages Muguang action'' ".

   Since then, a series of documents, including the 14th Five-Year Plan for National Economic and Social Development and the Outline of the 2035 Vision Goals (Draft), the Notice on organizing the construction of pilot counties for Rural Energy Revolution, and the Notice on issuing the 14th Five-Year Plan for Renewable Energy Development, have clearly pointed out that it is necessary to actively promote the development of decentralized wind power.

    At the same time, provinces are paying more attention to decentralized wind power, including Inner Mongolia, Shanxi, Zhejiang, Beijing and other provinces (cities) have listed the development of decentralized wind power as the key planning of the region''s "14th Five-Year Plan" energy development.

    The frequent occurrence of favorable policies indicates that the development potential of decentralized wind power is about to explode. The industry believes that the future scenario of decentralized wind power may bring new incremental space.

    Second, the main characteristics of distributed wind power.

    1. Local balance, local consumption.

    The project is mainly distributed in the load center, mainly in the central and eastern parts of the country, and nearby access to the 110 kV voltage level distribution network, which does not require long-distance UHV transmission and saves the cost of transmission and distribution equipment. Therefore, various industrial parks, development zones and large factories are ideal users of distributed wind farms.

    2. Flexible grid-connection mode.

    At the time of approval, the grid-connected method can choose "spontaneous self-use, surplus electricity online", the proportion of self-use can be implemented in accordance with local policies, or "full Internet access", and the distributed wind power on-grid electricity price can be verified in accordance with the "Notice of the National Development and Reform Commission on Improving the Wind Power on-grid Electricity Price Policy" issued by the National Development and Reform Commission in May 2019.

    3. The decentralized wind power unit has a small scale, short construction period, and does not occupy national indicators

    The installed capacity of decentralized wind power does not exceed 6MW, the development method is flexible, and the most important thing is that it does not occupy the national approved plan indicators.

    Third , the main advantages of distributed wind power.

    1. Construction advantages

    In the construction of the project, the total installed capacity of a single project is generally less than 50MW, and the fan unit is generally used in small units, so the entire distribution network can use the low-pressure transmission mode. Based on the above characteristics, the total area of the distributed wind power project is small, the construction cost and equipment cost investment is low, and the comprehensive construction period is short.

    In addition, the biggest advantage of the distributed wind power system is also the fundamental significance of its research and development is that the wind power model has no harsh requirements for wind power, and can be applied in a very wide range. The simplicity of the structure also gives it a higher advantage in repair, maintenance and maintenance, which helps to maximize the utilization of wind resources.

    2. Operational advantages

    Therefore, the capacity of decentralized wind farms is generally in a state of production and consumption, there is no need to build a separate high-voltage transmission line and power transformation Settings, there is no excess and unsaleable phenomenon, and the operation state is efficient and easy to manage.

    3. Technical aspects

    Distributed wind power projects can be more flexible to choose the best location for access to the distribution network, better achieve the balance between actual wind power capacity and energy consumption in load areas, and have higher peak load balancing performance. Comprehensive optimization of the weak structure of the distribution network and many other drawbacks, technical advantages are very obvious.

Forth ,Five major power generation groups are involved.

    Huaneng Group recently released an article that said that in the next stage, the new energy company will anchor the grid-connection and start targets issued by the group company in accordance with the unified deployment of the group company, accelerate the construction of large-scale localized projects, and promote the decentralized wind power project development pilot in counties and villages according to local conditions. Strive to achieve the annual grid connection of 10.07 million kilowatts, new construction of 13.7 million kilowatts target. Strive to the end of 2023, new energy companies wind power, centralized photovoltaic and distributed photovoltaic installed capacity exceeded 10 million kilowatts, to achieve the "three ten million" goal.

    In May 2021, Datang Group published an article that organically integrated enterprise development and rural revitalization, actively participated in the "wind control plan of thousands of villages" and "thousands of villages Muguang Action", promoted the construction of distributed photovoltaic power generation and decentralized wind power, and promoted the electrification of farmers'' lives; Strengthen cooperation with local governments and state-owned agricultural companies, and focus on the research and development of a number of large-scale agricultural + new energy projects.

    On January 6, 2023, at the centralized signing ceremony of the central enterprise new energy smart operation and maintenance service cooperation project, Wen Jiangang, chairman of Huaneng Group, said that China Huaneng focuses on the layout of "sandy beach, Gobi, wasteland" large-scale clean energy base, offshore wind power cluster along the eastern coast, and Southwest scenic water multi-energy complementary base to promote the decentralized distributed continuous development in the southern region of the Middle East.

    According to the "China County Green Low-carbon Energy Transformation Development Report" jointly released by State Power Investment and Siemens in December 2022, the current situation of China''s county energy development is rich in energy resources, but low utilization rate. Rural areas are rich in energy resources, and the exploitable potential of distributed photovoltaic technology is more than 1000GW, and the exploitable potential of distributed wind power technology is 250GW.


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