Sungrow PowerKeeper 12.5kWh Commercial Battery Module
Sungrow’s PowerKeeper Series is a modular commercial and industrial (C&I) energy storage solution designed to maximise solar value, eliminate oversizing, and ensure continuous power even during grid outages.
DC-coupled and designed for today’s C&I challenges, PowerKeeper is built around Sungrow’s SH-CX series C&I hybrid inverters, simplifying the full lifecycle from installation to long-term operation.
With 12.48 kWh battery modules, the system scales from 50 kWh up to nearly 250 kWh per unit. This is achieved by stacking up to 5 modules per tower and linking up to 4 towers in parallel per inverter unit. With the PowerKeeper Combiner Box, cascading up to approximately 1,000 kWh is possible, with the availability of this function announced from Q3/2026.
This makes PowerKeeper suitable for a wide range of sites, from small commercial buildings to large industrial facilities, while enabling precise capacity matching and reduced upfront investment.
Based on Sungrow’s “Ace 007, Ace Profit” concept, it delivers:
- 0 Waste: Accurate capacity matching and maximum solar utilisation
- 0 Outage: Seamless backup for business continuity
- 7 Ups: A smoother, more efficient experience end to end
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
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 |