The concept of the most popular decentralized wind

  • Detail

The concept of decentralized wind power has long been put forward! Why has it been valued so far

decentralized wind power refers to wind power projects that are close to the load center and connected to local power for consumption, and do not need long-distance transmission. The access voltage level is 35 kV and below

In fact, the concept of decentralized wind power has long been put forward in China's policy documents. In the "Twelfth Five Year Plan for the development of renewable energy" issued in 2010, it is mentioned that it is necessary to speed up the development of wind power in inland resource rich areas and encourage the construction of small and medium-sized wind power projects according to local conditions, Connect wind turbines with appropriate capacity according to the power load level of the substation nearby, explore the development mode combined with other distributed energy, and realize the nearby utilization of decentralized wind energy in central and southern China. In 2011, the National Energy Administration issued the notice on the development of decentralized access wind power, clarifying the main ideas and boundary conditions of decentralized wind power development. In the same year, the national energy administration also issued the notice of Guiding Opinions on the development and construction of decentralized access wind power projects, which defined the access voltage level and project scale of decentralized wind power projects, and made relevant provisions on project site selection, preliminary work and approval, technical requirements and operation management of access system, engineering construction and acceptance, etc

unfortunately, a series of national industrial policies supporting the development of decentralized wind power did not achieve ideal results in the early years. In the past two years, distributed photovoltaic has developed in full swing. In 2017, the newly installed capacity was 19.4gw, 4.6 times that of 2016. In contrast, the development of decentralized wind power in China lags behind, with only a few pilot projects

the reasons why the development of decentralized wind power in China is lower than expected are as follows:

first, the policy support of local governments for decentralized wind power is insufficient, and the development planning of provinces and regions on decentralized wind power has not kept up, resulting in the early national policies to promote the development of decentralized wind power have not been well implemented

second, the main body of domestic wind power investment is state-owned enterprises. Large energy state-owned enterprises are keen on large-scale and heavily invested centralized wind power base projects. The current performance evaluation methods and system constraints of some state-owned assets make energy state-owned enterprises less motivated to invest in small-scale decentralized wind power

III. The installed capacity of decentralized wind power projects is smaller than that of general plastics, accounting for 85% and 90% of them (ABS, PP, PS). The former is a kind of glass reinforced resin, with high unit development cost and unsatisfactory economic benefits. Therefore, most of the existing projects are demonstration projects

fourth, China lacks the management norms of decentralized wind power, and the land department is not clear about the land nature of decentralized wind power projects in terms of policies, resulting in investors' wait-and-see attitude towards decentralized wind power. In addition, some enterprises with innovative decentralized wind power technology hope to develop wind power projects on the roofs of urban buildings, but due to the lack of relevant security policies, they are worried that they will be recognized as illegal construction and demolished by the housing and urban rural development department, and they dare not invest rashly

v. the approval procedures of decentralized wind power projects are more cumbersome than those of distributed PV, and the approval of decentralized wind power projects takes a long time

VI. distributed wind power is close to the urban load center, and there should be different standards from traditional wind turbines in terms of appearance, height, weight, noise, and combination. The lack of special technical standards for decentralized wind power in China hinders the research, development and application of decentralized wind power

under the severe situation of wind power curtailment in the "Three North" region and the gradual exhaustion of high-quality centralized projects in the market, it is inevitable that wind power will shift from centralized large-scale continuous development of extruders to centralized and decentralized collaborative development according to the angle between the head material flow direction and the screw centerline. In May 2017, the National Energy Administration issued the notice on accelerating the construction of decentralized access wind power projects, All provincial energy departments are required to formulate decentralized wind power development plans, and it is clear that decentralized wind power projects are not limited by the annual guidance scale. Subsequently, the provinces accelerated the pace of formulating decentralized wind power development plans. At present, the provinces that have clearly prepared decentralized wind power construction plans include Guangxi, Shanxi, Inner Mongolia, Henan, Guizhou and Hunan

in the future, although some bottlenecks in the development of decentralized wind power still exist, as the focus of China's wind power industry shifts to the Middle East and southern regions, the industrial policy guidance is gradually inclined to decentralized, and the development of decentralized wind power is expected to accelerate. According to the data of the wind energy professional committee of the China Renewable Energy Society, the exploitable amount of low wind speed wind resources in the central, Eastern and southern regions of China can reach 1billion kW. At present, the developed amount of resources is about 60million kW, less than 7%. In the future, 93% of the resources need to be further developed, and decentralized wind power has a certain market prospect in the future

the advantages of decentralized wind power lie in low requirements for the load level of consolidation, low threshold of investment amount, small floor area, short construction cycle, not accounting for the approved indicators, and timely consumption of power, which is more suitable for private capital

the general trend of the development of wind power industry is from quantity to quality, from concentration to decentralization, and gradually towards a process of refined management. 2017 is the first year of the outbreak of distributed photovoltaic in China. Will decentralized wind power also usher in a golden period of development in 2018? Let's wait and see

Copyright © 2011 JIN SHI