On December 31, 2024, at the end of the year, my country's world's largest pumped storage power station, the State Grid Hebei Fengning Pumped Storage Power Station, was officially put into full commercial operation!
It is understood that the total installed capacity of Fengning Power Station is 3.6 million kilowatts, and it has created four "firsts" in pumped storage power stations: the world's first installed capacity, the world's first energy storage system capacity, the world's first underground plant scale, and the world's first underground cavern group scale.
By 2025, on January 9, "Energy Storage No. 1", the world's first 300 MW compressed gas energy storage demonstration project, was fully connected to the grid! The project has created "three world records" for single-machine power, energy storage scale and conversion efficiency!
At the same time, recently, the Ulanqab 300 MW/1200 MWh energy storage power station project, the largest single-unit electrochemical energy storage EPC general contracting project in China, was also announced to be fully connected to the grid! Another "most" energy storage!
It is reported that it was constructed by China Energy Construction Central South Institute. The project is located in Liangcheng County, Ulanqab City, Inner Mongolia, with a construction scale of 300 MW/1200 MWh. It is a supporting energy storage project for the 1.5 million kW "wind, light, fire, storage and hydrogen integration" large-scale wind power photovoltaic base in Ulanqab. It is also the second batch of large-scale wind power and energy storage base projects focusing on deserts, Gobi and desert areas in the country. It is also the largest single electrochemical energy storage power station in China.
Just on January 7, my country's largest beach photovoltaic energy storage power station-Huadian Laizhou large-scale saline-alkali beach photovoltaic storage integration project was put into operation on the shore of Bohai Bay, which is another "domestic best". It is understood that the project is one of the third batch of large-scale wind power photovoltaic bases in the country, with an installed capacity of 1,000 MW, and a supporting 200 MW/400 MWh electrochemical energy storage project.
Since last year, energy storage has experienced difficulties such as low-price competition, corporate withdrawal from the market, and deterioration of the financing environment. The stage of big waves washing away the sand is bound to be very painful, but it is normal. my country's energy storage industry has also gone through an extraordinary year amidst challenges and opportunities, with products and technologies constantly breaking world records, demonstrating China's speed everywhere.
01. The world's largest compressed air energy storage power station
On December 18, 2024, Changzhou, Jiangsu Province ushered in the official launch of the world's largest compressed air energy storage power station construction project-Jintan Salt Cavern Compressed Air Energy Storage Power Generation Phase II Project. The project successfully broke the scale record previously held by Shandong Feicheng International 300MW/1800MWh Advanced Compressed Air Energy Storage National Demonstration Power Station.
The Jintan Salt Cavern Compressed Air Energy Storage Power Generation Phase II project is located in Changzhou and plans to deploy two sets of compressed air energy storage units with a power of up to 350 megawatts. The total gas storage volume of the salt cavern is astonishingly 1.2 million cubic meters. It is estimated that the power station will achieve 330 charge and discharge cycles per year, and the energy conversion efficiency will exceed 70%.
This milestone project not only marks a major breakthrough in compressed air energy storage technology, but also establishes the Jintan Salt Cavern Compressed Air Energy Storage Power Generation Phase II project as the world's largest single-unit power, largest total capacity, and highest comprehensive efficiency compressed air energy storage power station leading position.
02. The world's largest integrated demonstration project of "source, grid, load and storage"
On March 31, 2024, the Three Gorges Ulanqab new generation grid-friendly green power station demonstration project was officially put into operation, marking the entry of this major new energy project built and operated by the Three Gorges Group into a new stage. As the first new energy station in China with a storage configuration of gigawatt-hours, it is also the world's largest integrated demonstration project of "source, grid, load and storage".
The project is located in Siziwang Banner, Ulanqab City, with a total installed capacity of 2 million kilowatts, covering 1.7 million kilowatts of wind power and 300,000 kilowatts of photovoltaic power, and is equipped with a 550,000 kilowatt × 2-hour energy storage system, which is enough to store 110 5-megawatt wind turbines for 2 hours. Since the first batch of 500,000-kilowatt units were connected to the grid in December 2021, the project has been steadily advancing, and the second and third phases of the project will also be successfully connected to the grid by the end of 2023. In March 2024, with the commissioning of the 500 kV permanent transmission and transformation project, the project achieved full capacity grid connection and was successfully connected to the grid at one time.
It is estimated that the project's annual power generation can reach 6.3 billion kWh, meeting the monthly electricity needs of nearly 300,000 households, equivalent to saving 2.03 million tons of standard coal and reducing carbon dioxide emissions by 5.2 million tons, making an outstanding contribution to the "carbon peak and carbon neutrality" goals.
03. The world's largest sodium ion energy storage power station
On June 30, 2024, the first phase of Datang Hubei 100MW/200MWh sodium ion new energy storage power station technology innovation demonstration project was completed and put into operation, with a production scale of 50MW/100MWh, realizing the first large-scale commercial application of sodium ion new energy storage technology in the world.
The project is located in Xiongkou Management District, Qianjiang City, Hubei Province, covering an area of about 32 acres. The energy storage system of the first phase project consists of 42 sets of energy storage battery warehouses and 21 sets of boost converters. 185Ah large-capacity sodium ion batteries are selected, and a 110 kV boost station is built in conjunction. After commissioning, it can be charged and discharged more than 300 times a year, and a single charge can store 100,000 kWh of electricity. It can release electricity during the peak period of the power grid, which can meet the daily electricity demand of about 12,000 households and reduce carbon dioxide emissions by 13,000 tons per year.
04. The world's largest grid-side distributed modular energy storage power station
In January 2024, the Huayan No. 1 energy storage power station project delivered by Singularity Energy was successfully connected to the grid.
The power station has a scale of 200MW/400MWh and is located in Ningxia, "Sai Shang Jiangnan", in Enhe Town, Zhongning County. The project adopts Singularity's distributed modular intelligent energy storage system solution, with a total of 1,076 eBlock-372 products deployed. It is the world's largest grid-side distributed modular energy storage power station project. The successful grid connection marks another breakthrough in my country's large-scale distributed energy storage power station field on the grid side.
05. The world's largest new energy storage base
The 3060MW energy storage base is located in the south of Huanggang Town, Dan County, Heze, Shandong Province. It is jointly invested by China Energy Construction Digital Technology Group and Shandong Guohui, with a total investment of more than 20 billion. The project is the first large-scale green electricity consumption hub in China. It adopts the "salt-electricity joint venture + integrated mining and storage" model and has set three world records: the world's largest new energy storage base, the largest salt mine custom-made cavity energy storage base and the first 600MW compressed gas energy storage power station.
Relying on local salt mine resources, the base plans 9 units with a total installed capacity of 3060MW, including 3 units of 660MW and 360MW power units, with an estimated annual power generation of 4 billion kWh and a conversion efficiency of about 70%. These "world's best" energy storage projects demonstrate China's leading position in global energy technology innovation, and have a far-reaching impact on the green transformation of the global energy structure, the enhancement of power grid stability, the improvement of new energy consumption capacity and the development of the industrial chain. In addition, they have strengthened international energy cooperation, enhanced China's influence on the international energy stage, and made important contributions to promoting global energy sustainable development.
