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release time:2023-11-29 Hits: Popular:AG11 battery
Lithium battery energy storage power stations are the main energy source, and many energy storage technologies are still being explored. The main function of lithium battery energy storage power station is to stabilize the operation of the power grid and ensure the security of the power grid. Its functions include grid peak regulation, frequency regulation and voltage regulation, replacing some peak regulation power plants, frequency regulation units, rotating backup, accident backup, etc. As an emerging field, lithium battery energy storage has developed rapidly around the world in recent years.
1. Lithium batteries will start the construction of large-scale energy storage power stations in the future
The value of lithium battery energy storage in terms of environmental protection is mainly reflected in its matching with renewable energy power generation. It can significantly transform the energy structure and reduce the use of fossil energy such as coal power, thus achieving the purpose of reducing carbon dioxide emissions. Although the cost of lithium battery energy storage power stations is twice as high as that of lead-acid batteries, this is not a reason to abandon lithium batteries. Different application scenarios have different requirements for energy storage power and capacity, and various energy storage technologies have their suitable application fields.
On July 18, my country's first 100,000-kilowatt battery energy storage power station was officially connected to the grid and put into operation in Zhenjiang, Jiangsu Province, ushering in a new stage of commercial operation of my country's large-scale battery energy storage power stations. my country's new lithium-ion batteries have met the safety requirements such as high temperature resistance and non-explosion required for commercial operation, which has provided technical support for the construction of large-scale battery energy storage power stations. Moreover, it is expected that the cost of lithium batteries will drop to 0.25 yuan per kilowatt-hour in the future.
The one-time investment in lithium battery energy storage systems is much higher than that of lead-acid batteries, and lithium-ion battery technology has advanced rapidly and has a good industrial foundation. It is gradually penetrating into the fields of decentralized energy storage and large-scale energy storage.
2. Demonstration projects explore business models
Since June this year, news about grid energy storage bidding, construction, and grid connection have been coming from Henan, Jiangsu, Fujian, Guangdong, Qinghai, Inner Mongolia and other places, indicating that my country's energy storage market is constantly expanding.
In fact, the above-mentioned projects are only part of this year’s “energy storage craze”. In these new projects, the supporting energy storage systems are all lithium batteries. The many demonstration applications of lithium battery energy storage power stations are constantly exploring the business model of energy storage in centralized renewable energy grid connection and grid-side applications.
The projects with current economic value lie in small user-side applications. Information provided to reporters by the Zhongguancun Energy Storage Industry Technology Alliance shows that when industrial and commercial users install energy storage systems, they can save capacity electricity bills in areas with large peak-to-valley electricity price differences; in areas with more flexible capacity-based electricity fee assessment rules, they can also save capacity electricity bills. Save capacity electricity bills for users. Relative to the income, the cost of lithium battery energy storage power stations is still relatively high.
3. Many energy storage technologies are still being explored
In fact, the technical route for energy storage is not single. my country is actively developing a variety of energy storage technologies. In 2050, my country's total installed capacity will reach 50 billion kilowatts (KW). Adjusting the balance of supply and demand according to scale, the capacity of energy storage will reach 400 million KW. At present, lithium-ion batteries and lead-carbon batteries are the main ones, supplemented by compressed air energy storage, flywheel energy storage, supercapacitors, flow batteries and other technical routes. Different energy storage technology routes can basically meet the needs of different application scenarios. .
Liquid flow, lithium batteries, and other battery energy storage technologies are all in the stage of commercialization exploration and transformation. In fact, they are not elementary or laboratory concepts. Huang Mianyan said, "The all-vanadium redox flow battery has the characteristics of safety, longevity, cyclability, and the power module and capacitance module can be configured independently."
4. Prospects and expectations of China’s lithium battery energy storage market
① New energy power generation supporting and power auxiliary services will be the largest energy storage market;
As the world's largest power application market, China has a lot of room for the development of renewable energy. We have reason to believe that China will become the world's largest battery energy storage market in the near future. At the same time, as the power market continues to open up, power auxiliary services will also provide a broad market space for battery energy storage. In this direction, European and American countries have set an example for us.
②The pace of energy structure adjustment can be larger;
As mentioned earlier, my country's power supply structure is still very unreasonable. The high proportion of coal power restricts the pace of development and utilization of renewable energy and also brings a lot of inconvenience to people's lives;
③The pace of opening up the power market can be faster;
④The energy storage subsidy policy must be implemented as soon as possible.
At present, lithium battery energy storage power stations are the main energy source, and many energy storage technologies are still being explored. In the power grid, as long as the scale is large enough, lithium battery energy storage power stations are undoubtedly one of the best dispatch resources. Therefore, we must stand at the height of the national energy strategy and carefully study and evaluate the full value and significance of the battery energy storage system in order to maximize its benefits in the development of the national economy. We believe and look forward to the early arrival of the world's largest energy storage market!
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