Sungrow Powerkeeper BMS
The Sungrow PowerKeeper Battery Management System (BMS) is the control core of the PowerKeeper C&I energy storage platform, ensuring safe, efficient, and reliable operation across modular battery systems.
Designed for PowerKeeper’s DC-coupled, modular architecture, the BMS manages and monitors each 12.5 kWh battery module, enabling accurate capacity matching to site requirements. This helps eliminate oversizing, improve solar self-consumption, and support cost-effective system expansion.
Advanced monitoring, protection, and balancing functions safeguard battery health throughout the system lifecycle, supporting long-term reliability and stable operation. During grid disturbances or outages, the BMS plays a critical role in enabling seamless backup power, helping businesses maintain continuity and operational resilience.
Learn More About Sungrow PowerKeeper System
Proven Experience, Trusted Partner
With over 1,000 C&I energy storage projects deployed globally, including 200+ projects across Europe, Sungrow brings deep field experience and end-to-end service capabilities to every installation.
One System, Multiple Applications
PowerKeeper adapts seamlessly to diverse C&I scenarios:
- PV + ESS
- PV + ESS + EV charging
- Microgrid & backup
- Stand-alone C&I energy storage
- Off-grid and hybrid applications
0 Waste: Modular by Design
PowerKeeper is designed to protect every customer’s investment through a highly flexible, modular configuration. Built on a 12.5 kWh module architecture, a single hybrid inverter supports 50–1000 kWh of storage with 2–8 hours of duration. For larger requirements, multiple inverters can be connected in parallel, enabling seamless and scalable system expansion.
This modular approach enables precise capacity matching across applications, from small supermarkets to large industrial facilities, maximising energy utilisation, reducing upfront costs, and improving system efficiency.
0 Outage: Continuous Power for Critical Operations
PowerKeeper delivers seamless backup power to keep businesses running without interruption, even during grid failures. It supports critical loads in supermarkets, factories, warehouses, and commercial buildings.
- 10 ms ultra-fast switching to off-grid mode during grid outages
- Built-in Automatic Transfer Switch (ATS) supporting up to 250 kW load
- No external ATS cabinet required, saving space, time, and cost
7 Ups: A Better Experience at Every Step
1. Easy Installation
The system includes AI cell-level health monitoring of cell temperature, current and voltage.
- Choice of 12.5 kWh single modules or 50 kWh pre-built stacks
- Fits even in tight spaces; manual handling or forklift-friendly
2. Fast Deployment & Commissioning
- Plug-and-play design
- 3-step commissioning in under 5 minutes via iSolarCloud
- Unified monitoring for PV, storage, and EV charging
3. Reliable Operation in Harsh Environments
- Operates in water up to 50 cm depth
- IP66 & C5 corrosion protection
- Wide operating range: –20°C to +55°C, ≤60 dB noise
- Type I + II lightning protection
4. Simple Maintenance
- Replacement without repair
- Pack-level balancing within ≤48 hours
- Supports mixing old and new batteries for flexible upgrades
5. Profit Optimisation
PowerKeeper supports multiple revenue streams:
- Self-consumption
- Energy arbitrage
- Frequency response (FFR)
- Demand control
AI-driven operating modes automatically optimise strategies using real-time electricity prices, PV generation forecasts, and load predictions.
6. Comprehensive Safety
- 5D alerts: current, voltage, temperature, smoke, and water immersion
- Triple-guard protection at cell, pack, and plant levels
- Appliance-level safety for daily operation
7. Long-Term Value
A future-proof system that grows with the business, reduces risk, and maximises lifetime returns.
TECHNICAL INFORMATION:
Battery (DC):
- Cell Type: LFP 3.2 V
- Nominal Capacity: 12.48 kWh
- Depth of discharge (DOD): 100%
- Nominal voltage range: 32.4 V ～ 43.8 V
- Nominal charge / discharge rate: 0.5P
| Brand | Sungrow |
| High / Low Voltage Battery | High Voltage |
| Battery / System Model | Sungrow PowerKeeper (C&I) |
| Protection Rating (IP) | Suitable for Outdoors |
| Battery End User | Commercial/Industrial |
| Battery Cell Type | LiFePO4 (LFP) |
| Grid Connection | Grid and Off Grid Capable |