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    • Energy Storage Battery Cabinet
    • Energy Storage Battery Cabinet

    Containerized Energy Storage System 1.2MWh | 20FT Outdoor ESS Utility Scale

    1200kWh

    Containerized Energy Storage System – 1.2MWh | 20FT Utility & Grid-Scale ESSG500K-E1000

    Containerized Battery Energy Storage System is a 1.2MWh LFP (LiFePO4) battery container built on a standard 20ft container footprint (6058×2438×2896mm), designed for utility-scale and large C&I peak-valley arbitrage, demand management, renewable integration and microgrid projects. The container integrates 75 battery modules of 51.2V/314Ah (16.08kWh each) on a 768V DC bus with a wide voltage range of 672~864V, ready to pair with centralized PCS and transformer stations.

    The system delivers 96% efficiency — a class-leading figure that directly raises project returns — with 90% depth of discharge and a 0.5C charge/discharge rate, completing a full 1.2MWh cycle in about two hours and supporting daily peak-valley cycling. Built with 314Ah large-format LFP cells, the system is designed for a 15-year service life and backed by a 10-year warranty, minimizing lifetime cost per kWh.

    Thermal management uses industrial air cooling, maintaining stable operation at 0℃ to 50℃ ambient and 5%~95% humidity, with an IP54-class containerized enclosure suitable for outdoor deployment in deserts, coastal and high-humidity environments. CANBUS and Modbus-TCP/IP communication interfaces connect seamlessly to plant SCADA and third-party EMS platforms.

    As a standard 20ft container, G500K-E1000 ships by sea like ordinary cargo — no special freight arrangements — and can be deployed with a crane in hours. Multiple containers can be paralleled at the AC side to build 5MWh, 10MWh and larger plants, so projects can scale capacity step by step.

    Model number:G500K-E1000
    Battery :LiFePO4
    Rated capacity (Ah):314
    Rated energy (MWh):1.2
    Voltage range (V):672~864
    Rated voltage (V):768
    Efficiency:96%
    Depth of discharge:90%
    System charging rate:0.5C
    System discharge rate:0.5C
    Size: L*W*H (mm):6058*2438*2896
    Weight (t):16
    Operating temperature[°C]:0~50
    Temperature control method:Air cooling
    Altitude (m):<2000
    Humidity:5%~95%
    Battery module configuration:75 pieces of 51.2V 314Ah
    Design lifespan (years):15
    Combination method:parallel connection
    Communication mode:CANBUS/Modbus-TCP/IP
    Warranty:10

    Product Features

    • 01

      Standard 20ft Containerized BESS

      A complete 1.2MWh LFP battery container on a standard 20ft footprint (6058×2438×2896mm, 16t). Ships by sea as ordinary cargo and is crane-deployable within hours — ideal for export projects and remote sites.

    • 02

      96% Efficiency, 90% DOD

      96% round-trip system efficiency and 90% depth of discharge extract the maximum usable energy from every installed kWh, directly improving project IRR.

    • 03

      Industrial Air-Cooling Thermal Management

      Container-level industrial air cooling maintains stable operation at 0℃ to 50℃ ambient and 5%~95% humidity — lower maintenance than liquid-cooled systems, well suited to arid and remote sites.

    • 04

      15-Year Design Life, Open Communication

      Built on 314Ah LFP cells with a 15-year design lifespan and 10-year warranty. CANBUS / Modbus-TCP/IP interfaces integrate with plant SCADA and third-party EMS platforms.

    Product Advantages

    Energy Storage Battery Cabinet
    MWh-Class Capacity, Step-Wise Scaling

    1.2MWh per container; multiple containers parallel at the AC side to build 5MWh, 10MWh and larger plants — start with what the project needs today.

    Lowest Lifetime Cost of Energy

    96% efficiency + 90% DOD + 0.5C daily cycling + 15-year design life — four figures together that push the lifetime cost per kWh below conventional systems.

    Export-Ready Standard Container

    Standard 20ft dimensions mean no dangerous-goods break-bulk handling complexity beyond standard battery shipments, simple truck/crane logistics and fast commissioning.

    Grid-Ready Integration

    768V DC bus (672~864V) pairs with mainstream centralized PCS; CANBUS / Modbus-TCP/IP connects to SCADA and EMS for dispatch and ancillary services.

    FAQ

    • About Zhongyue?

      Anhui Zhongyue Energy Storage Technology Co.,Ltd.(Zonyue) is located in Hefei, Anhui, a hub for new energy in China. We are a high-tech enterprise specializing in integrated photovoltaic and energy storage solutions. Integrating R&D, production, sales, and service, we are committed to providing global customers with safe, efficient, and stable energy storage products and system services. We are your reliable partner on the path towards energy independence and sustainable development.
    • What application scenarios are suitable for the 1.2MWh capacity? How do I choose between this and the 40-foot 2.4MWh version?

      The 1.2MWh / 20-foot container is ideal for: Medium-scale commercial projects: Shopping malls, industrial parks, EV charging stations with 500–1,000 kW peak loads. Community energy storage: Microgrids or virtual power plant (VPP) nodes for residential clusters. Renewable integration: Pairing with 1–2 MW solar or wind installations. Grid support: Frequency regulation or peak shaving for distribution feeders. Choose the 20-foot version when space is limited, transport access is constrained, or when modular deployment is preferred (e.g., start with 1.2 MWh and add more containers later). Choose the 40-foot version when higher capacity per footprint is needed or when fewer interconnection points are desired for larger projects.
    • What payment methods do you accept?

      100% T/T in advance or 30% T/T deposit, and the balance 70% paid before shipment.
    • How can I trust you? What if you don't ship after payment?

      We are a physical factory located in Hefei, China, legally registered and verifiable in the Chinese business registry. Our website is also ICP-licensed and officially recorded. To build trust, we can provide real-time factory video or video calls at any time.
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