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State-owned Assets Supervision and Administration Commission of the State Council
The 100-megawattto 200-megawatt-hour independent energy storage station developed by China Huaneng Group Co., Ltd. (China Huaneng) was connected to the power grid on Dec 29, 2021, beginningoperation of the world's first 100-MW decentralized-controlled energy storage station.
With a designedlife span of 25 years, the project includes construction of 37 sets of lithium iron phosphate battery storage unitsanda 220-kilovoltbooster station.
What's more, the station will increase the annual consumption of new energy power by 100 million kWh, an equivalent toelimination of burningof30,000 tonsof coal.
The station is installed with the 1,500V-level decentralized-controlledbattery energy storage technology developed by China Huaneng, which canprovide independent and refined management of each battery cluster through modularized energy storage conversionand improve the actual availability of the batteries.
It is estimated that once operational, battery capacity utilizationof theenergy storage station will reach about 92 percent, about seven percenthigher than the current average industrial level.
In addition, the decentralized control of battery clusterscan also help realize automatic calibration of battery state of charge (SOC), which significantly reducesoperation and maintenance workloads.
Construction of the project started on Sept 28, 2021, and took only 90 days to complete, the shortest period among the first batch of power peak load regulationprojects in Shandong Province in 2021.
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Battery-based energy storage project
Construction works were simultaneously started on two 50MW facilities in December 2019 with commissioning expected by the end of 2020. The initial 100MW project is being built with Chinese investment while the China Huaneng Group is responsible for the construction and operation of the facility.
Scheduled to achieve 150MW capacity in 2021, the Minety battery project is intended to store the excess electricity generated from renewable sources and supply that power to the grid when needed. The project will help in balancing the UK''s electricity demand and supply while facilitating the country''s transition to a net-zero carbon system.
The Minety battery storage project is being developed near Minety, approximately 19km northwest of Swindon in Wiltshire County, in south-west England, UK.
The 150MW Minety battery storage facility will comprise three 50MW adjacently located battery units utilising lithium-iron-phosphate (LiFePO4)/ ternary lithium battery technology for storing electricity. Each battery unit will feature multiple inverters for discharging the stored electricity in alternate current (AC).
When fully charged, the 150MW battery facility will be capable of holding 150MWh of electricity which will be enough to power approximately 15,000 homes for a day.
The project also involves the construction of a 132kV substation to absorb as well as evacuate power into the grid.
The stored electricity from the battery units will be evacuated into the National Grid as well as the Scottish and Southern Energy (SSE) electricity transmission networks.
Shell Energy Europe Limited (SEEL), a wholly-owned subsidiary of Shell, signed an agreement to off-take electricity from the initial 100MW battery storage project in February 2020.
Penso Power is currently seeking a potential off-taker for the 50MW project extension.
The initial 100MW battery energy storage project is being funded by the Chinese state-owned electricity generation enterprise China Huaneng Group and the Chinese sovereign wealth fund CNIC Corporation.
China Huaneng Group is the main contractor responsible for the construction and operation of the first two 50MW battery storage units.
About China huaneng battery storage
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