Five-Module 12kW 25kWh All In One Energy Storage System with Dual MPPT
Modular All In One ESS for Medium-to-High Capacity Projects
This 12kW 25kWh all in one energy storage system combines pure sine wave inverter output, five stackable LiFePO4 battery modules, dual MPPT solar charging, dual AC output and WiFi monitoring in one coordinated platform.
Five 5.12kWh battery modules provide 25.6kWh of rated energy and approximately 23.04kWh of usable storage at 90% depth of discharge. The configuration offers more backup reserve than the 15kWh and 20kWh versions while remaining more compact than a 30kWh battery bank.
It is suitable for villas, large homes, home offices, small shops and solar backup projects requiring high inverter output with a practical modular battery capacity.
Five-Module Stackable System Design
Modular Battery Handling Separate 5.12kWh battery modules simplify transportation, site access and final equipment positioning.
Balanced Energy Reserve Approximately 23.04kWh of usable storage provides additional operating time without moving to a larger 30kWh configuration.
24kVA Starting Headroom Short-duration surge capacity can assist compatible pumps, compressors and air conditioners after startup demand is checked.
Dual AC Output Priority circuits can be separated from flexible loads to improve stored-energy management during outages.
Dual MPPT Solar Charging and Generator Support
The solar charger supports up to 9kW of photovoltaic input with one MPPT or up to 15kW when both MPPT channels are used. Separate tracking channels can support suitable solar strings installed on different roof areas.
Solar generation can supply compatible daytime loads and charge the battery. Utility input or a compatible generator can provide another charging source during prolonged outages or periods of low solar production.
Power Planning: The 12kW rating is the continuous output limit, while 24kVA is short-duration surge capacity. Battery capacity determines operating duration and should be calculated separately.
Engineering and Installation Specifications
| AC Connection | 220 / 230 / 240Vac; L + N + PE |
| AC Input Range | 90–280Vac Normal Mode / 170–280Vac UPS Mode |
| Frequency and Power Factor | 50Hz / 60Hz Auto Detection / PF 1.0 |
| Transfer Response | 10ms APP / UPS Mode; 20ms Generator Mode |
| PV Operating Limits | 90–485Vdc MPPT / 500Vdc Maximum Open-Circuit Voltage |
| Charging Current Limits | 160A PV / 160A AC / 160A Combined |
| Battery Voltage Platform | 51.2Vdc Nominal / 40.5–54.5Vdc Operating Range |
| Installation Environment | IP20 / -10°C to 50°C / Dry Indoor Area |
| Module Size and Weight | Inverter: 540 × 480 × 180mm / 27kg; Battery: 540 × 480 × 164mm / 45kg Each |
Grid Use Notice: The system supports compatible utility charging, solar self-consumption and backup operation. This page does not claim electricity selling or power export to the grid.
12kW 25kWh All In One ESS FAQ
How is the 25kWh capacity configured?
The system uses five 5.12kWh battery modules, providing 25.6kWh of rated energy and approximately 23.04kWh of usable storage at 90% depth of discharge.
Why choose 25kWh instead of 20kWh or 30kWh?
It provides more reserve than the 20kWh version while using fewer battery modules than a 30kWh battery bank.
Can two separate solar strings be connected?
Yes. Dual MPPT supports suitable separate photovoltaic strings when each channel follows the specified power, current and voltage limits.
Can a generator charge the battery?
Generator operation is supported when its voltage, frequency and available power match the system requirements.
Where should the system be installed?
The IP20 system requires a dry indoor location with stable support, ventilation, cable access and adequate service clearance.
Five-Module ESS Project Support
This 12kW 25kWh all in one energy storage system is suitable for solar distributors, installers and project developers requiring modular battery storage, high inverter output and dual MPPT solar charging.
