Sungrow PowerKeeper System Battery 12.5kWh module, 4x minimum modules, IP66

Sungrow is a global leader in renewable energy solutions, specialising in high-performance solar inverters and energy storage systems. With over 27 years of innovation and a strong commitment to sustainability, Sungrow delivers reliable, efficient, and intelligent power conversion technologies for residential, commercial, and utility-scale solar projects. Trusted worldwide for quality and durability, Sungrow continues to drive the transition towards a cleaner, greener energy future.

A0SK1436- Sungrow PowerKeeper System Battery 12.5kWh module, 4x minimum modules, IP66

The Sungrow PowerKeeper ST050-250CF is a modular commercial and industrial (C&I) battery energy storage system designed to provide scalable energy storage, backup power and advanced energy management for commercial, industrial and renewable energy projects. Featuring a 49.9kWh battery stack that can be expanded up to 250kWh, the system offers exceptional flexibility for growing energy demands.

Built around a modular architecture, the PowerKeeper supports up to five battery stacks per system and can be further expanded through optional battery junction boxes to create systems of up to 1000kWh, making it suitable for a wide range of commercial energy storage applications.

The system incorporates advanced safety features including pack-level thermal runaway protection, smoke detection and an explosion relief valve. It is engineered for demanding environments with IP66 protection, C5 anti-corrosion resistance and enhanced flood resistance capable of withstanding 50cm water submersion for 24 hours.

PowerKeeper also delivers seamless backup functionality with an off-grid transfer time of ≤10ms, helping ensure load continuity during power interruptions. Combined with cloud-based monitoring, predictive diagnostics and over-the-air updates, it provides an intelligent, future-ready energy storage platform.

Key Features: 

• 49.9kWh Modular Battery Stack: Scalable commercial energy storage for a wide range of applications.
• Expandable to 250kWh: Supports up to five battery stacks per system.
• Scalable to 1000kWh: Optional battery junction boxes enable larger energy storage deployments.
• IP66 Rated Protection: Designed for demanding indoor and outdoor installations.
• Advanced Safety Design: Includes thermal runaway protection, smoke detection and explosion relief valve.
• 50cm Flood Resistance: Withstands water submersion for up to 24 hours.
• Fast Deployment: Pre-built design with simplified wiring reduces installation time.
• Seamless Backup Function: Off-grid transfer time of ≤10ms ensures load continuity.
• Smart Cloud Monitoring: Supports predictive diagnostics, remote monitoring and OTA updates.
• Supports Mixed Battery Ages: Active balancing allows integration of new and existing modules.

Product Specifications: 

• Model: ST050-250CF
• Nominal Capacity: 49.9kWh per stack
• Usable Capacity: 49.9kWh
• Nominal Voltage: 153.6V
• Dimensions: 800 × 1350 × 405mm
• Weight: ≤430kg per stack
• Operating Temperature: Charge 0°C to +55°C / Discharge -20°C to +55°C
• Protection Rating: IP66
• Anti-Corrosion Rating: C5
• Installation: Floor Standing
• Warranty: 10 Years