Anchoring the "dual carbon" target and trillion yuan track, Shanghai Electric's coordinated development of diversified storage and regulation technologies

Recently, the launch ceremony of the world's first 300MW compressed air energy storage series large capacity motor developed and produced by Shanghai Electric was quietly held. The main technical indicators of the product have reached the international advanced level of similar products, which is of great significance for promoting the development of the national compressed air energy storage industry

Recently, the launch ceremony of the world's first 300MW compressed air energy storage series large capacity motor developed and produced by Shanghai Electric was quietly held. The main technical indicators of the product have reached the international advanced level of similar products, which is of great significance for promoting the development of the national compressed air energy storage industry. It is understood that this series of products will be used in the demonstration project of Hubei Yingcheng 300MW compressed air energy storage power station, with a designed power generation capacity of over 500 million kWh, which can meet the annual electricity consumption of over 400000 ordinary households.

In recent years, under the guidance of the "dual carbon" goal, China's energy structure has accelerated transformation. In the power system, new energy sources such as wind and photovoltaic are bound to become the main power sources in the future. At the same time, in order to effectively solve the problems of randomness, volatility, and intermittency of wind and solar power, clean energy bases need to introduce peak shaving equipment to support the reliable operation of wind and photovoltaic power. Therefore, the energy storage industry has made significant progress in recent years. According to data from the National Energy Administration, from January to June 2023, the installed capacity of new energy storage systems in China was approximately 8.63 million kilowatts/17.72 million kilowatt hours, equivalent to the total cumulative installed capacity in previous years. According to industry experts' predictions, by 2025, the scale of China's new energy storage industry may exceed one trillion yuan.

Facing the period of strategic opportunities, in order to achieve the organic unity of serving the national strategy and safeguarding the interests of all shareholders, Shanghai Electric maximizes its advantages in diversified industrial groups and forms an "electrical solution" of "diversified energy storage and coordinated development". The compressed air energy storage technology product independently developed by Shanghai Electric Group is one of its various technological routes.

According to the person in charge of relevant work at Shanghai Electric: Shanghai Electric can provide full field energy storage solutions ranging from second rated power to over 8 hours of energy, with technical lines covering pumped storage, electrochemical energy storage, molten salt energy storage, compressed air energy storage, flywheel energy storage, superconductivity, etc. In addition, with its own advantages in the field of energy equipment, Shanghai Electric can provide integrated equipment and services for wind power photovoltaic, diversified optimal storage, and condenser, achieving combination optimization for different scenarios Provide customized solutions for large base customers to maximize overall project revenue

Multiple storage and adjustment technologies to achieve combined advantages for different scenarios

From the perspective of the supply side, facing differences in power supply structure, power grid planning, scheduling and operation in different regions, how to solve the problem of 'one leaf obstructing the vision, each fighting independently, and information silos', while assisting customers in building large base projects with reliable quality, leading technology, and considerable profits, is a major challenge faced by the energy storage industry. Faced with this problem, the coordinated development of multiple storage and dispatch technologies, and the realization of a combination advantage for different scenarios, is Shanghai The direction of electrical power generation The above person in charge stated that.

In the Sago Desert scenario, molten salt energy storage is a major energy storage solution provided by Shanghai Electric. In the Muhammad bin Rashid Al Maktoum Solar Park in the Kuzhuo Desert, the world's largest solar thermal project with molten salt reserves - the fourth phase of the Dubai Maktoum Solar Park solar thermal photovoltaic composite power plant project - was constructed by Shanghai Electric. The project is equipped with 1x100MW tower type molten salt heat storage power generation units and 3x200MW trough type molten salt heat storage power generation units. The principle of its power generation is to use molten salt to store a large amount of heat generated during the day when sunlight is abundant, and to provide electricity at night or on cloudy days. Taking the Dubai project as an example, each slot unit is equipped with a 13.5 hour heat storage system, which means that the energy stored by each slot unit can meet the full load operation of the steam turbine unit for 13.5 hours. By utilizing the advantages of high stability, long storage capacity, and long lifespan of molten salt energy storage, it is possible to continuously and stably convert solar energy into electricity for 24 hours. It is understood that this project can reduce carbon emissions by 1.6 million tons per year and provide clean electricity to 320000 local households, which is of great significance for the implementation of Dubai's 2050 clean energy strategy.

In the grid side scenario, the combination solution of compressed air and lithium batteries is one of the characteristics of Shanghai Electric. In July of this year, Shanghai Electric Power Plant Group won the bid for the innovative demonstration project of compressed air+lithium battery combined grid side shared energy storage power station in Tongwei County, Dingxi City, Gansu Province. This project is a key support construction project in the "Key Points of Targeted Assistance and Counterpart Support for Rural Revitalization by the National Energy Administration in 2023", and also the first innovative demonstration project of grid side shared energy storage for the combination of compressed air and lithium batteries by the National Power Investment Corporation. The total scale of the project is 100 megawatts/400 megawatt hours, with a construction scale of 50 megawatts/200 megawatt hours in the first phase. The installed capacity of compressed air is 10 megawatts/110 megawatt hours, and the installed capacity of lithium battery energy storage system is 40 megawatts/90 megawatt hours. After the completion of the project, a new energy storage and comprehensive utilization model can effectively alleviate the pressure of peak shaving and frequency regulation of new energy power, improve the power grid structure and energy consumption capacity, and help consolidate and enhance the local power supply guarantee capacity and power grid security.

For distributed scenarios, Shanghai Electric relies on its unique GVPI technology to provide customers with a complete set of pre installed warehouse type condenser equipment and operation and maintenance services, providing dynamic reactive power support for the power grid and solving voltage fluctuations. In the future power grid of new energy power station areas, it can significantly enhance the power grid's ability to absorb new energy such as wind power and solar energy. Taking the Jingneng Zhinvquan project, which was put into operation at the beginning of this year, as an example, the project adopted the first distributed, prefabricated 10Mvar level air water cooled GVPI (integral vacuum pressure impregnation) condenser in China. The short circuit ratio at the output end of the wind farm has been significantly improved, with a reduction of over 30% in power abandonment rate, making the station basically unaffected by power grid restrictions.

In addition, facing the new type of power system and building an efficient and resilient energy network, Shanghai Electric has relied on the "Xingyun Zhihui" platform to create an integrated energy and carbon management system of "source network load hydrogen storage", promoting the optimization of active consumption of new energy and helping to improve the balance and energy-saving capacity of the power system. Further enhance the value of energy storage products in new power systems through digital integration.

The industry has huge potential and continues to deepen the cultivation of "high safety, high quality, and sustainability"

According to data, as of the end of July 2023, the total installed capacity of power generation in China has reached 2.74 billion kilowatts. In order to maintain the safety and stability of power grid operation, it is estimated that China needs nearly 400 million kilowatts of energy storage capacity based on the international low 15% ratio of energy storage demand. However, as of the end of 2022, the actual installed capacity of energy storage in China is only 60 million kilowatts, indicating a significant demand gap.

Regarding the future of the industry, the person in charge of relevant work at Shanghai Electric stated: "Energy storage is definitely a promising development direction in the future. The group also attaches great importance to the business development in this direction. Facing the 14th Five Year Plan, Shanghai Electric has clearly focused on the new track development of" 4+2+X ", focusing on the layout of emerging energy sources such as" wind, light, storage, and hydrogen ", and making intelligent manufacturing a growth pole for Shanghai Electric's future development. In addition, in May last year, the theme of the first phase of Shanghai Electric's dual carbon theme forum was the industrial forum for diversified energy storage. In the future, with the continuous improvement of market-oriented electricity pricing mechanisms, Shanghai Electric will have greater development space with the advantages of diversified storage and dispatch technologies

Moreover, on September 12th this year, the A-round financing signing ceremony of Shanghai Electric Energy Storage Technology Co., Ltd. (hereinafter referred to as "Electric Energy Storage") was successfully held. After completing this round of financing, electrical energy storage will focus on promoting the development of new systems, expanding production lines, and constructing 100 megawatt projects, deepening industrial cooperation, and accelerating industrial upgrading. In the future, electrical energy storage will adhere to the technological development goal of "high safety, low cost, and sustainability", actively develop liquid flow energy storage technology, and provide diversified energy storage solutions for application scenarios and personalized customer needs on the power supply side, grid side, and user side.

Currently, most of the energy storage technologies in the market are still in the early stages of industrial development. To think about how energy storage mechanisms can help promote better industry development from a higher and broader perspective, it is necessary to fully consider future trends such as the gradual improvement of future electricity pricing mechanisms and the high integration of energy storage project construction and operation. Shanghai Electric hopes to optimize combination development and integration collaboration with diversified energy storage and regulation technologies, so that different fields can achieve better development Wind, light and other energy sources in the landscape have become more economical, stable, and reliable. Help customers achieve value increment and help green energy become the true main power source The person in charge said.

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