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INDEPENDENT ENERGY STORAGE COSTS PER WATT

Grid-side independent energy storage project

This project marks the first 220kV voltage level new energy storage power station in Foshan Power Grid, with a construction scale of 208MW/416MWh. 9 sets of Zhiguang Electric's independently developed and technically leading High-Voltage Cascade Direct-Mounted Energy Storage Systems will be deployed, configured with full liquid-cooling technology, and the whole energy storage power station adopts Zhiguang Electric's “5S” full-stack technology to realize the whole life cycle management, monitoring and control of the energy storage system.After the project is completed and put into operation, it will provide auxiliary services such as frequency regulation and peak shifting for the power grid, effectively enhance the power supply reliability of the Foshan regional power system, promote new energy consumption, and play an important role in promoting the development of Guangdong's new electric power system, and the project is expected to be completed and put into operation in June 2025. [pdf]

Energy storage cabinet new battery base station

Base station energy cabinet: a highly integrated and intelligent hybrid power system that combines multi-input power modules (photovoltaic, wind energy, rectifier modules), monitoring units, power distribution units, lithium batteries, smart switches, FSU and ODF wiring, etc., to effectively solve Various functional requirements such as power supply, backup power supply, and optical network access of base station communication equipment. [pdf]

Industrial Park Container Energy Storage Project

With the company’s expanding production scale and increasing requirements for Enterprise Energy Management, the construction of an Industrial Park Energy Storage Solution helps the enterprise achieve Peak Shaving and Valley Filling, reduce electricity costs, and enhance the stability and reliability of power supply, ensuring smooth production.This project adopts Lithium Iron Phosphate (LFP) Batteries, featuring High Energy Density Batteries and Long Cycle Life Batteries, with an installation scale of 875 kW/1827 kWh. [pdf]

Common topologies of energy storage power supplies

Most popular topologies in this regard include the Dual Active Bridge with Extended Phase Shift (for example in TIDA-010054) which deals with a primary voltage of 700V to 800V DC, and secondary voltage of 350V to 500V DC (single-phase-shift SPS) or 250V to 500V (extended-phase-shift EPS) for power levels up to 10 kW, Phase-shifted Full-Bridge (for example in PMP22951) which deals with a voltage of 400V down to 54V and a power level of 3kW or CLLLC Dual-Active Bridge (for example in TIDM-02002) which deals with a primary voltage range of 380–600V to a secondary voltage range of 280–450V and power levels up to 6.6kW. [pdf]

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