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Jinling grid side lead-acid battery energy storage power station successfully put into operation by NR

On October 29, 2020, the 12MW / 48MWh lead-acid battery energy storage power station of Jinling substation in Huzhou, Zhejiang Province, which was supplied by NR, passed all tests and was officially put into operation according to the dispatching instructions. The power station is the first grid side lead-acid battery energy storage power station in China.

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NR supplied complete system, including Power Conversion System (PCS), BESS control unit, energy management system (EMS) and  other core equipment for grid connection and control. The system has passed the comprehensive network access test organized by the Electric Power Research Institute, including on-site high / low voltage ride through, response speed, grid adaptability, AGC / AVC, primary frequency and voltage regulation, power quality control and black start etc. The power dynamic response of the system is less than 30ms, and the frequency modulation response accuracy is less than 0.005Hz.

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Energy storage on the side of power grid can reduce the demand for new construction or postpone capacity expansion, which is a way to effectively save the investment of power grid. It can change the investment mode of "source with load" into the mode of "source load interaction". The completion of the project will provide adjustment support capacity for Huzhou Changxing Power Grid, effectively reduce the peak valley difference of power grid load, enhance the capacity of frequency & voltage regulation, system stability and provide emergency power supply guarantee for users around the power station.

Based on the diversified demand of energy storage, NR takes the overall advantages of its advance power system protection, control and power electronics technology, and created an integrated energy storage system solution. It has been applied in different power grid side energy storage stations, providing strong support for the stable operation of urban and regional power grid. NR will continue to provide advanced solutions, reliable products and high-quality services, and give full play to the application value of energy storage in the "source", "grid" and "load"  of the power systemand keep improving the reliability and resilience of power grid.


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