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Sungrow & Sungrow PowerStack ST255CS-2H

Type of manufacturer: ST255CS-2H-V1631
Manufacturer Art. No.: A0SJ3820
Art. Nr.: 15106
Pieces per package unit:
  • 1 per pallet
  • 8 per container
Battery type: LFP
Installation location: Outdoor
Usable capacity: 255 kWh
Power: 125 kW
Warranty: 5 years
Charging power: 125 kW
Discharging power: 125 kW
Communication: Ethernet
Commercial storage type: All-in-One
Prices are only visible to business customers upon successful registration.
  • New
Available from 13.07.2026
Product number: 15106
Prices are only visible to business customers upon successful registration.
  • New
Available from 13.07.2026
Product number: 15106
Description

Sungrow PowerStack ST255CS-2H

The Sungrow PowerStack ST255 is the logical evolution of the proven PowerStack series and sets new standards in the commercial and industrial storage sector. With 125 kW of power and 257 kWh of capacity, the system is ideally suited to classic 2-hour use cases such as peak shaving, load shifting and Self-consumption optimisation.

Thanks to its intelligent system design, integrated power electronics and liquid-cooled battery technology, the ST255 offers maximum efficiency, safety and easy integration into existing energy systems.

Upon delivery of the storage system, the pre-commissioning checklist must be completed and submitted to Sungrow.
Please then complete the online form for the IBN enquiry with our specialist sales team and submit it.
You will receive the necessary links from your designated specialist sales representative.

Please check the certification requirements in the relevant country.

The Sungrow EMS300CP EMS controller and a compatible smart meter (e.g. DTSU666-20 or Janitza UMG 604-PRO) are required and must be ordered separately.

Note: Off-grid, switchover time 3 minutes

Suitable unloading facilities must be provided on site, taking into account the weight of the PowerStack systems.

Advantages:

  • Fully integrated system design
  • Efficient liquid cooling: Uniform temperature distribution (ΔT ≤ 2.5 °C) protects the battery cells and extends service life.
  • Maximum safety: AI-supported cell monitoring, multi-stage overcurrent protection and integrated fire protection concept (including gas detector, smoke detector, aerosol system).
  • Powerful and robust: 125 kW output combined with high system efficiency ensures cost-effective operation in typical C&I applications.
  • High scalability: Up to 25 systems can be operated in parallel, enabling capacities in the MWh range.
  • Smart monitoring: Via the iSolarCloud platform with remote maintenance, real-time monitoring, firmware updates and fault analysis.

Technical specifications:

  • Capacity (usable): 255 kWh
  • Power (AC): 125 kW
  • Voltage (DC): 691.2 V – 934.4 V
  • Protection class: IP55
  • Warranty: 5 years (extendable to 10 years for a fee)
  • Operating temperature: -30 °C to 50 °C
  • Communication: Ethernet / Modbus TCP
  • Dimensions (W x H x D): 1150 x 2450 x 1610 mm
  • Weight: <3,200 kg

The Sungrow PowerStack ST255CS-2H is now available. Get your quote!

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Sungrow PowerStack ST255CS-2H
Sungrow & Sungrow PowerStack ST255CS-2H
Available from 13.07.2026