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| How to take the road of energy storage in the west? |
| Release time:2022-12-22 10:49:29| Viewed： |
How to take the road of energy storage in the west?
The western region of China is rich in new energy resources, which provides a broad platform for technological innovation and industrial application of wind power and solar power generation. The energy storage industry that cooperates with it also ushers in major development opportunities.
"According to incomplete statistics, during the 14th Five Year Plan period, only the five provinces and regions of Shaanxi, Gansu, Ningxia and Qinghai planned and are building new types of energy storage, with a total of more than 10 million kilowatts." At the 2022 Seventh China Energy Storage Forum held on December 1, Liu Yafang, Deputy Director of the Energy Conservation and Scientific and Technological Equipment Department of the National Energy Administration, disclosed this data.
Under the scale, the development speed and quality of new energy storage need to be improved. How to realize the coordinated development of large-scale new energy application and energy storage? How to build a new energy storage project in the west as a model project? At the meeting, several experts and scholars put forward relevant suggestions.
Avoid "one size fits all" proportional energy storage
Liu Yafang said that there are differences in the resource endowment, power supply structure, power grid structure, load characteristics of new energy bases in western provinces and the source grid load characteristics of power systems at the receiving end. To promote the development of new energy storage, the first task is to adhere to the principle of adapting measures to local conditions and scientific calculation in planning and layout.
She pointed out that in order to realize the economic and efficient development and consumption of new energy, relevant local governments and enterprises should carefully analyze and calculate in accordance with the policy requirements of the Guiding Opinions on Accelerating the Development of New Energy Storage, the Management Specifications for New Energy Storage Projects (Provisional), the Notice on Further Promoting the Participation of New Energy Storage in the Power Market and Dispatching Application, and scientifically arrange the development scale of new energy storage according to the development of new energy projects The construction layout and construction sequence shall avoid "one size fits all" allocation of energy storage in proportion.
In the opinion of Shi Yubo, president of China Energy Research Association, all regions in the west should plan and layout clean energy, peak shaving power supply and energy storage power station projects from a systematic perspective. "It is necessary to build an energy storage equipment manufacturing industry cluster and a hundred billion level energy storage industry chain with the help of the new energy industry's advantageous resource base.
”He suggested that full consideration should be given to the maturity and construction costs of various energy storage technologies, optimize technology configuration, innovate the operation mode of energy storage power stations, improve the power market system, establish a reasonable new energy storage cost dredging mechanism, and accelerate the establishment of a standardized system to promote the whole process of new energy storage projects.
"Recently, the National Energy Administration is organizing to study and prepare the technical guidelines for the planning of large-scale scenery bases and power transmission supporting new energy storage. In the next step, it will be revised and improved in combination with the feedback from all sides, and strive to be printed and distributed within the year to provide guidance and support for all regions." Liu Yafang revealed.
The contradiction of "building without using" needs to be resolved urgently
"Shaanxi Province strives to achieve a cumulative installed capacity of more than 2 million kilowatts of new energy storage by the end of the 14th Five Year Plan. In 2022, 16 new shared energy storage power stations will be planned and built around the supporting facilities of the first phase of the Shaanxi Lake DC and the Weinan New Energy Base." said Guo Tingbo, deputy director of the New Energy Division of Shaanxi Energy Bureau.
The development scale of the western region reflects the hot trend of the energy storage industry. Chen Haisheng, chairman of the Zhongguancun Energy Storage Industry Technology Alliance, chairman of the Energy Storage Special Committee of the China Energy Research Association, and deputy director of the Bureau of Major Science and Technology Tasks of the Chinese Academy of Sciences, said that as of October 2022, there were a total of 27 provinces that had defined the energy storage installation plan, and the scale had reached 73.6 million kilowatts.
This data is far beyond the goal of "reaching more than 30 million kilowatts by 2025" proposed in the Guiding Opinions on Accelerating the Development of New Energy Storage.
However, the reality of low utilization rate of new energy storage facilities is corresponding to the ambitious planning goals of various regions, which restricts their practical effect in the power system.
The Research Report on the Operation of New Energy Distribution and Storage recently released by the China Electricity Council shows that the average equivalent utilization coefficient of the electrochemical energy storage project under investigation is 12.2%, while the utilization coefficient of new energy distribution and storage is only 6.1%. Its operation strategy is to charge and discharge every day at most during the power abandonment period, and the overall utilization is poor.
"The National Energy Administration has paid close attention to the utilization rate of facilities reflected by recent public opinion, especially the problem that new energy projects are required to allocate and build energy storage, but rarely use or even do not use it." Liu Yafang stressed that it is necessary to effectively strengthen the scheduling and application of new energy storage, and improve the utilization rate of new energy storage facilities that have been built. "All relevant local governments should carefully study, comprehensively investigate and analyze the reasons, and resolve the contradiction of 'building without use' as soon as possible.
Relevant power grid enterprises should speed up the improvement of grid connection technology and management specifications for energy storage facilities. Power regulation and control institutions should speed up the improvement of energy storage dispatching management system, optimize the system operation mode, and actively explore the establishment of a new energy storage, 'new energy+energy storage' integrated system dispatching mechanism. "
Innovative exploration of new energy storage multiple values
"From the perspective of provincial planning, most provinces encourage the development of the application mode of 'new energy+energy storage', and encourage the construction of centralized shared energy storage and grid side independent energy storage demonstration projects." Chen Haisheng said, "With the promotion of the 'dual carbon' goal and the increasing proportion of renewable energy, the allocation proportion and allocation time of energy storage in the power system will continue to increase, and the construction of long-term large-scale energy storage is the general trend.
”He believed that in order to achieve large-scale development of energy storage industry, it is necessary to further improve and strengthen technical progress, cost reduction, price mechanism and power market construction.
Liu Yafang proposed that the competent authority of power market construction should combine the "two detailed rules" and power market construction to timely adjust and enrich the trading varieties, optimize the market trading rules, mobilize the enthusiasm of various market entities, remove obstacles for new energy storage to participate in the power market, and enable new energy storage to obtain reasonable market returns through multiple values of technical performance.
"The new power system is to reconstruct the energy system with new energy, power grid, energy storage and active load." Xia Qing, a professor of Tsinghua University, said that only by meeting the incentive compatibility mechanism, can we activate the vitality of all links, stimulate the efficient and accurate interaction between the source grid, load storage, and stimulate the coordinated development of new energy and energy storage. "In the power market system dominated by new energy, the spot power market can finely depict the value of electric energy in each period, and measure the value of energy storage with the time sharing capacity price, thus encouraging the coordinated development of new energy and energy storage."
As a new technology and new business form of market-oriented development, the development of new energy storage is bound to require institutional innovation. "In technology research and development, application promotion, business model and other work, we should actively use our brains, innovate working methods, seek truth from facts, analyze specific problems, adjust and improve the system and mechanism, adapt to the needs of productivity development, and tap and release new energy storage and multiple values," said Liu Yafang.
At present, more than ten provinces across the country have explored and carried out new energy storage demonstration, formulated corresponding local policies and established relevant working mechanisms in terms of cost facilitation mechanism, project safety management, etc., fully mobilized resources from all sectors of production, education, research and utilization, and formed beneficial experience.
Guo Tingbo introduced that Shaanxi encourages and supports construction enterprises to carry out demonstration applications of heat storage, hydrogen storage, compressed air and other innovative energy storage technologies.
For mainstream lithium battery energy storage power stations, Shaanxi has put forward the threshold requirements for energy storage system performance indicators and operation life cycle, implemented the territorial filing management of new energy storage projects, prepared and issued new energy storage management measures, and made it clear that energy storage power stations, as independent market players, participate in auxiliary power services and market-oriented transactions.
"In the future, we will actively explore the implementation path of carbon peak with Shaanxi characteristics, and make contributions to promoting the high-quality development of Shaanxi energy industry."
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