According to Zhang Zhengling, a spokesperson for the State Grid Corporation of China who has received much attention from the society for some time, the current development of wind power in China is subject to a “hard†and “soft†constraint—for cross-regional consumption of wind power grid construction. The early-stage work has been seriously lagging behind, and the market mechanism that makes participating parties in all aspects of wind power have enthusiasm has not yet been established. Solving the problem of wind power consumption needs to focus on both hard and soft.
According to Zhang Zhengling, as of the end of September 2013, the grid-connected wind power capacity of the national grid was 64.26 million kilowatts, an increase of 21.5% over the same period last year. The average annual growth of installed capacity was 76% between 2006 and 2012, and the annual growth rate of annual power generation was 85%. Mengdong and Mengxi The proportion of wind power generation in the four regions of Gansu, Gansu and Weibei reached 28%, 12%, 9%, and 8%, respectively, which is similar to that of wind power countries such as Spain and Germany, and has reached world-class standards. In the past five and a half years, China has gone through 15 years of wind power development in Europe and the United States, becoming the world’s largest wind power country. The national power grid has become the world’s largest connected wind power network and the fastest growing power generation grid.
However, he also emphasized that in the nine ten million kilowatt-class wind power bases under construction and in the “Twelfth Five-Year Planâ€, except for Shandong and Jiangsu, which are located in the load center and can be consumed on the spot, the rest of Hami, Jiuquan, and Meng West, Mengdong, Zhangbei, Jilin, and Longjiang are all located in the “Three North†region. Their installed capacity has reached 20%; due to the small size of the market and limited peaking resources, there is no room for local consumption. The proportion of wind power installed in the country is only 6%. The resources for peak adjustment in the eastern and eastern regions are relatively abundant, and the market potential is not fully utilized. Therefore, accelerating the UHV cross-regional transmission channel and peaking power supply construction is the fundamental way to increase wind power consumption. However, the preparatory work for the relevant power grid construction lags behind. The performance of the “12th Five-Year Plan†grid plan that we submitted for many times has not been approved, and the 12th Five-Year Plan for renewable energy such as wind power, solar energy and hydropower has long been approved. More than a year. The approval of some projects for wind power transmission corridors also needs to be accelerated. Of course, new projects have been approved for the improvement of wind power delivery capacity since the beginning of this year. For example, in June, Jiuquan Wind Power Phase II’s supporting 330 kV transmission project was approved; in September, Jiuquan The ± 800 kV UHV DC transmission project in Hunan Province has obtained roads. After the completion of the project, the newly added capacity for wind power transmission is 8 million kilowatts, but “they are still far from enoughâ€. For example, the tunnel project in Inner Mongolia has not yet reached its base. Weibei implemented two The 500-kilovolt channel, but still can not solve the "12th Five-Year Plan" of 10 million kilowatts. Now more than half of the "12th Five-Year Plan", the time is pressing, "We are very anxious."
In addition to the hard constraints, Zhang Zhengling pointed out that a set of market mechanisms is needed to make the participants of wind power from construction, operation, and acceptance to all parties involved active. He introduced the Nordic power grid, which is Denmark’s strong wind power country, and has a well-designed Nordic market: wind power quoted at the trough time can be quoted as “zero priceâ€, and it actually obtains a spread other than the average price formed by the market. Make up. This solves the problem of “who gives way to whomever gives†to the market, making wind power competitive with traditional energy sources. However, we are still using administrative means such as scheduling “dead orders†and even “planning electricity†to become soft constraints that are not conducive to the acceptance of wind power.
When answering this reporter’s question, Zhang Zhengling also introduced the power substitution for improving the local capacity of wind power, especially wind power heating: In March of this year, the National Energy Administration launched the Baicheng Wind Power Clean Heating pilot project. The State Grid timely handled the power supply business of heating boilers and arranged the transformation of distribution networks. However, he stressed that the cost of wind power heating is much higher than that of traditional heating methods, and it needs corresponding policies and technical support. After the trial is successful, it is expected to push it in a large area.
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