The world’s largest sodium-ion energy storage power station
On June 30, the first part of the Datang Hubei project finished. It is a 100MW/200MWh sodium ion energy storage project. It then started. It has a production scale of 50MW/100MWh. This event marked the first large commercial use of sodium ion new energy storage.
The project is in Xiongkou Management District, Qianjiang City, Hubei Province. It covers about 32 acres. The first phase project has an energy storage system. It has 42 sets of battery warehouses and 21 sets of boost converters. We selected 185Ah sodium ion batteries. They are large-capacity. We also built a 110 kV boost station. After it's commissioned, it can be charged and discharged over 300 times a year. A single charge can store 100,000 kWh. It can release electricity during the peak of the power grid. This electricity can meet the daily demand of about 12,000 households. It also reduces carbon dioxide emissions by 13,000 tons per year.
The project's first phase uses the sodium ion energy storage system. China Datang helped develop the solution. The main technology equipment is 100% made here. The power management system's key technologies are controllable on their own. The safety system is based on "full-station safety control. It uses smart analysis of operation data and image recognition." It can give early safety warnings and do smart system maintenance. The system is over 80% efficient. It also has the functions of peak regulation and primary frequency regulation. It can also do automatic power generation and voltage control.
The world's largest compressed air energy storage project
On April 30, the first 300MW/1800MWh air storage power station connected to the grid. It is in Feicheng, Shandong Province. It was the first of its kind. It's part of a national demo of advanced compressed air energy storage. The power station uses advanced compressed air energy storage. The Institute of Engineering Thermophysics developed the technology. It is part of the Chinese Academy of Sciences. China National Energy Storage (Beijing) Technology Co., Ltd. is the investment and construction unit. It is now the biggest, most efficient, and best new compressed air energy storage station. It is also the lowest-cost one in the world.
The power station is 300MW/1800MWh. It cost 1.496 billion yuan. It has a system rated design efficiency of 72.1%. It can discharge continuously for 6 hours. It generates about 600 million kWh of electricity each year. It can power 200,000 to 300,000 homes during peak use. It saves 189,000 tons of coal and cuts carbon dioxide emissions by 490,000 tons yearly.
The power station uses the many salt caverns under Feicheng City. The city is in Shandong Province. The caverns store gas. It uses air as the medium to store power on the grid at a large scale. It can give the grid power regulation functions. These include peak, frequency, and phase regulation, and standby and black start. They help the power system run well.
The world's largest integrated "source-grid-load-storage" demonstration project
On March 31, the Three Gorges Ulanqab project started. It's for a new type of power station that is grid-friendly and green. It was part of the permanent transmission project.
The project is constructed and operated by the Three Gorges Group. It aims to promote the development of new energy and the friendly interaction of the power grid. It is China's first new energy station. It has a storage capacity of gigawatt hours. It is also the world's largest "source-grid-load-storage" integrated demonstration project.
The green power station demonstration project is located in Siziwang Banner, Ulanqab City. The project's total capacity is 2 million kilowatts. It includes 1.7 million kilowatts of wind power and 300,000 kilowatts of solar power. The supporting energy storage is 550,000 kilowatts × 2 hours. It can store the energy from 110 5-megawatt wind turbines at full power for 2 hours.
The project added its first 500,000-kilowatt units to the Inner Mongolia power grid. This happened in December 2021. This success marked an important step for the project. Subsequently, the project continued to advance steadily. By December 2023, the project's second and third phases were also connected to the grid. They used temporary transmission lines. By March 2024, the project finished the 500 kV transmission and transformation project. This supported the project's full capacity grid connection. The connection included 1.7 million kilowatts of wind power and 300,000 kilowatts of solar power.
Estimates say that after the project starts, it will generate about 6.3 billion kWh per year. This can power nearly 300,000 homes per month. This is like saving about 2.03 million tons of coal. It also cuts carbon dioxide emissions by 5.2 million tons. This helps to achieve the goal of "carbon peak and carbon neutrality".
The world's largest grid-side energy storage power station project
On June 21, the 110kV Jianshan Energy Storage Power Station started. It's in Danyang, Zhenjiang. The substation is a key project. It is part of the Zhenjiang Energy Storage Power Station.
The total power of the grid side of the project is 101 MW, and the total capacity is 202 MWh. It is the largest grid-side energy storage power station project in the world. It demonstrates how to do distributed energy storage. It is expected to be promoted in the national energy storage industry. After the project is done, it can provide peak-shaving and frequency regulation. It can also provide standby, black start, and demand response services for the power grid. It will let the grid use peak-shaving well, and help the grid in Zhenjiang. It will ease power supply pressure in the eastern Zhenjiang grid this summer.
Reports say that the Jianshan Energy Storage Power Station is a demonstration project. It has a power of 5 MW and a battery capacity of 10 MWh. The project covers an area of 1.8 acres and adopts a fully prefabricated cabin layout. It is connected to the 10 kV busbar grid side of Jianshan transformer through a 10 kV cable line.
Dangyang Winpower is a well-known local manufacturer of energy storage cable harnesses.
China's largest single-unit electrochemical energy storage system invested overseas
On June 12, the project poured the first concrete. It is for the Fergana Oz 150MW/300MWh energy storage project in Uzbekistan.
The project is in the first batch of projects on the list. It's part of the 10th anniversary of the "Belt and Road" Summit Forum. It's about the cooperation between China and Uzbekistan. The total planned investment is 900 million yuan. It is now the largest single electrochemical energy storage project. China invested in it overseas. It is also the first foreign-invested electrochemical energy storage project in Uzbekistan. It is on the grid-side. After completion, it will provide 2.19 billion kWh of electricity regulation. This is for the Uzbek power grid.
The project is in the Fergana Basin of Uzbekistan. The site is dry, hot, and sparsely planted. It has complex geology. The total land area of the station is 69634.61㎡. It uses lithium iron phosphate cells for energy storage. It has a 150MW/300MWh storage system. The station has a total of 6 energy storage partitions and 24 energy storage units. Each energy storage unit has 1 booster transformer cabin, 8 battery cabins, and 40 PCS. The energy storage unit has 2 booster transformer cabins, 9 battery cabins, and 45 PCS. The PCS is between the booster transformer cabin and the battery cabin. The battery cabin is prefabricated and double-sided. The cabins are arranged in a straight line. A new 220kV booster station is connected to the grid through a 10km line.
The project started on April 11, 2024. It will connect to the grid and begin on November 1, 2024. The COD test will be done on December 1.
Post time: Jul-22-2024