PowerKeeper ST250CF
HV-storage, 249.6 kWh, LFP
Art-No.
0166082
Product details
Product information "PowerKeeper ST250CF"
The manufacturer's specifications regarding installation location, assembly, installation and tools, fire protection, safety distances, etc., must be reviewed and confirmed on-site beforehand.
At least four storage modules are required per unit. All towers within a unit must have the same voltage level/height.
For parallel connection of up to four storage units, the PowerKeeper Combiner Box* is also required.
Please check whether additional data loggers or third-party EMS are required for the entire system (existing and new components) for the required interfaces.
Suitable lifting and transport equipment must be provided on-site. The accessibility of transport routes and passageways must be verified beforehand.
Need to quickly set up a modular storage system with a capacity of nearly 1,000 kWh*? And ensure no single element weighs more than 100 kg? The Sungrow PowerKeeper C&I Storage System makes it possible. Its modular, cable-free stacking design ensures minimal installation effort while offering maximum versatility. The battery modules—each with a capacity of 12.48 kWh—can be stacked five high per tower and connected in parallel* (four towers) to form a single unit of nearly 250 kWh. By cascading four of these units using a combiner box, the system achieves an impressive 1,000 kWh*. It pairs perfectly with the Sungrow SH125CX C&I hybrid inverter, which features 10 MPP trackers and an integrated backup connection with a switchover time of less than 10 ms. Beyond standard use cases, the system offers advanced features such as smart trading, dynamic electricity pricing, and virtual power plant capabilities.
Product advantages:
• Modular C&I storage system
• Up to 1,000 kWh* at maximum configuration
• Expandable indefinitely over time
Product specifications:
• Capacity (usable): 249.6 kWh
• Storage type: High-voltage
• Expansion timeframe: Unlimited
• Number of storage modules per tower / unit: 5 / 20
• Max. number of units in parallel: Up to 4 (Combiner Box required)
• Cell chemistry: LFP
• Communication: CAN
• Cooling: Air cooling
• Integrated cell heating: No **
• Protection class: IP66
• Cooling: Active
• Weight: 2,110.0 kg
**Version with cell heating announced for Q3/2026; cannot be retrofitted
Compatible inverter: Sungrow SH125CX
Scope of delivery:
- 1 x Sungrow PowerKeeper Accessory Kit Master incl. BMS + base (Item 0164089)
- 3 x Sungrow PowerKeeper Accessory Kit Slave incl. BMS + base (Item 0164087)
- 20 x Sungrow PowerKeeper storage module (Item 0164086)
Caution
| Dangerous goods description | LITHIUM ION BATTERIES |
|---|---|
| Dangerous goods Weight (net) (kg) | 1380.000 |
| Dangerous goods class | 9 |
| Dangerous goods transportation category | 2 |
| UN No. | 3480 |
| Dangerous goods packaging type | 4G |
| Classification code | M4 |
| Tunnel restriction code | (E) |
Downloads
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PowerKeeper Accessory-Kit Master0164089
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PowerKeeper Accessory-Kit Satelite0164087
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PowerKeeper STC 12.5-V10164086
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PowerKeeper Accessory-Kit Master0164089
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PowerKeeper Accessory-Kit Satelite0164087
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PowerKeeper STC 12.5-V10164086
Technical details
| Protection degree | IP66 |
|---|---|
| Commercial system | yes |
| Min. temperature ambient (°C) | -30 |
| Usable capacity (kWh) | 249.60 |
| Battery cell chemistry | LFP |
| Dangerous goods description | LITHIUM ION BATTERIES |
|---|---|
| Dangerous goods Weight (net) (kg) | 1380.000 |
| Dangerous goods class | 9 |
| Dangerous goods transportation category | 2 |
| UN No. | 3480 |
| Dangerous goods packaging type | 4G |
| Manufacturer | Sungrow |
| Manufacturer item name | ST0250CF*IEC_PK Accessory (Master)*IEC_PK Accessory (Slave) |
| Intrastat country of origin | China |
| Intrastat product number (HS-code) | 85076000 |
| Classification code | M4 |
| Tunnel restriction code | (E) |
| Weight incl. packaging (Kg) | 2635.000 |
|---|
| Weight without packaging (kg) | 2110.000 |
|---|
