Sungrow PowerKeeper 12.5kWh Commercial Battery Module
Sungrow PowerKeeper is a modular, AI-driven C&I battery storage system built around the SH-CX C&I hybrid inverter platform. Designed for commercial and industrial sites, it supports solar self-consumption, backup power, flexible sizing and smarter energy management.
Using 12.48 kWh LFP battery modules, PowerKeeper scales from 50 kWh up to nearly 250 kWh per inverter unit, with cascading up to approximately 1,000 kWh possible via the PowerKeeper Combiner Box from Q3/2026.
Based on Sungrow’s Ace 007, Ace Profit concept, it supports accurate sizing, fast backup switching, easier operation, safety and long-term value. The system is backed by a standard 5-year warranty.
Learn More About Sungrow PowerKeeper System
Proven C&I Storage Experience
With over 1,000 C&I energy storage projects deployed globally, including more than 200 projects across Europe, Sungrow brings proven field experience and end-to-end service capability to commercial storage installations.Â
Suitable Applications
PowerKeeper is suitable for a wide range of commercial and industrial energy storage scenarios, including:
- PV + ESS
- PV + ESS + EV charging
- Microgrid and backup power
- Stand-alone C&I energy storage
- Off-grid and hybrid applications
Installation and Commissioning
PowerKeeper is designed for easier installation and faster deployment. Installers can choose between 12.5 kWh single battery modules or 50 kWh pre-built stacks, with a compact design suitable for restricted spaces, manual handling or forklift-friendly.
The system supports plug-and-play deployment, 3-step commissioning in under 5 minutes via iSolarCloud, and unified monitoring for PV, storage and EV charging.
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
Reliability and Safety
PowerKeeper is built for demanding commercial environments, with:
- IP66 protection and C5 corrosion resistance
- Operating range from -20°C to +55°C
- Noise level of ≤60 dB
- Type I + II lightning protection
- Operation in water up to 50cm depth
- 5D alerts for current, voltage, temperature, smoke and water immersion
- Triple-guard protection at cell, pack and plant level
- The system includes AI cell-level health monitoring of cell temperature, current and voltage.
Maintenance and Long-Term Value
 PowerKeeper supports simplified maintenance with pack-level balancing within ≤48 hours, replacement without repair and the ability to mix old and new batteries for flexible future upgrades.
The system also supports revenue-focused operating modes, including self-consumption, energy arbitrage, frequency response and demand control. AI-driven optimisation can use electricity prices, PV generation forecasts and load predictions to improve operating strategies.
Profit Optimisation
 PowerKeeper supports multiple revenue streams:
- Self-consumption
- Energy arbitrage
- Frequency response (FFR)
- Demand control
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
  Minimum Pack Requirement: The modular architecture establishes a minimum four-battery-pack baseline (pre-built 50 kWh stack) to meet the initial operating DC voltage required by the SH-CX C&I hybrid inverter. When building a multi-stack unit under one inverter, all parallel stacks must have identical module counts, meaning the same physical height and voltage level.
| High / Low Voltage Battery | High Voltage |
| Battery / System Model | Sungrow PowerKeeper (C&I) |
| Brand | Sungrow |
| Protection Rating (IP) | Suitable for Outdoors |
| Battery End User | Commercial/Industrial |
| Battery Cell Type | LiFePO4 (LFP) |
| Battery Nominal Capacity (kWh) | 12.48 |
| Charge/Discharge Rate | 0.5P |
| Battery Usable Capacity (kWh) | 12.48 |
| Depth Of Discharge (%) | 100 |
| Grid Connection | Grid and Off Grid Capable |
| Battery IP Rating | IP66 |
| Dimensions (W x H x D) mm | 800 x 270 x 405 |
| Product Weight (Kg) | 92 |