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China launches world's largest battery energy storage station

Construction is completed on storage station for USD 500M renewables project in China

The large utility-scale station is located in Hebei Province
The large utility-scale station is located in Hebei Province

Chinese rechargeable batteries firm BYD and the State Grid Corporation of China (SGCC) have finished construction on what is claimed to be the world's largest battery energy storage station.


The large utility-scale station is located in Zhangbei, Hebei Province. It combines 140MW of renewable energy generation, 36MWh of energy storage and a smart power transmission system.


Xiu Binglin, deputy director of the National Energy Administration, said: “This state grid project demonstrates a solution and will be the model of development for China's new energy resources."


BYD says it has provided energy storage batteries in arrays for the station, which are “larger than a football field” and improve energy efficiency by as much as 10 per cent. The company states that the entire project is worth over USD 500m.


BYD has used its iron-phosphate battery technology for the energy station. The technology has a service life of over 20 years and uses the company’s “peak shaving & load leveling" charge and discharge methodologies.


The state grid system allows vast amounts of renewable electricity, consisting of wind and solar, to be safely transferred to the grid on an “unprecedented scale”.


The company says its battery energy storage technology provides a solution for the realisation of energy storage in the smart grid, which improves renewable energy efficiency by 5 per cent to 10 per cent.


He Long, BYD vice president, said: "BYD is honoured to cooperate with China and SGCC to build this large energy storage station and to make a contribution in the utilisation of renewable energy resources."


The battery storage station is the first of many MW-level cooperative projects with China's Southern Power Grid (CSG). The project has outpaced other grid projects in China and, though independently designed by SGCC, is part of the national "Golden Sun" programme. The first phase of investment in the programme is for 100MW of Wind, 40MW of Solar and 36MWh of Battery power. It is worth over USD 500M.


Binglin said: "The large-scale implementation of clean and green energy, such as wind and solar power, can only be realised when the technical difficulties of this new energy application in the utility system are resolved.”