SiRay Containerized ESS ESS-1M2-20FT - 1.2 MWh, 768 V - front view

20-Foot Containerized Energy Storage System ESS-1M2-20FT

  • 1.2 MWh
  • 768 V
  • LiFePO4
  • 20-ft Container

Send us your load list and we size it.

Turn-key 1.2 MWh energy storage system in a standard 20-foot container. 75 modules of 51.2V 314Ah in parallel, 96% efficiency and CANBUS / Modbus TCP/IP communication — shipped ready to connect for utility-scale and industrial sites.

Best for: Utility-scale and large industrial sites needing MWh-scale storage quickly

Key Specifications

Battery Parameters

Battery TypeLiFePO4
Rated Capacity1570 Ah
Rated Energy1.2 MWh
Rated Voltage768 V
Voltage Range672 – 864 V
Module Configuration75 pieces of 51.2V 314Ah

Operational Parameters

Efficiency96%
Depth of Discharge90%
System Charging Rate0.5C
System Discharge Rate0.5C – 1C
Operating Temperature0 – 50 ℃
Temperature Control MethodAir cooling
Altitude<2000 m
Humidity5% – 95%

System Parameters

Communication ModeCANBUS / Modbus TCP/IP
Combination MethodParallel connection
Design LifespanAbove 15 years
Dimension (L×W×H)6058 × 2438 × 2896 mm
Weight16 t

Where It Fits

  • Island and mine microgrids
  • Utility peak shaving and renewable firming
  • Large resort and industrial sites
  • Emergency reserve capacity that can be trucked in

Compatible Equipment

CANBUS and Modbus TCP/IP to a site SCADA, plus a medium-voltage or low-voltage coupling panel.

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