Specifications
Solar Input Architecture :
9kW Single MPPT / 15kW Dual MPPT
Available Storage Energy :
25.6kWh Rated / 23.04kWh Usable
Model Number :
ESS-25KWH-12KW-Q
Price :
Negotiable
Brand Name :
Voltertech
Supply Ability :
5000 Sets per Month
Delivery Time :
10-15 Days for Samples; 30-40 Days for Bulk Production
MOQ :
2 Units
Short-Duration Surge Power :
24kVA
Certification :
MSDS
Payment Terms :
L/C,T/T,Western Union
Packaging Details :
Heavy-Duty Wooden Case with Protective Foam
Integrated Output Platform :
12kW Pure Sine Wave
Supported Energy Sources :
Solar / Utility / Generator
Place of Origin :
China
Integrated Load Management :
Dual AC Output
Monitoring Interface :
LCD / WiFi / USB
Stackable Battery Layout :
Five 5.12kWh LiFePO4 Modules
Description

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.

Planning a five-module 12kW solar storage project?

Request a 12kW 25kWh ESS Configuration

Send your message to this supplier
Send Now

Five Module All In One ESS Energy Storage System 12kW 25kWh With Dual MPPT

Ask Latest Price
Solar Input Architecture :
9kW Single MPPT / 15kW Dual MPPT
Available Storage Energy :
25.6kWh Rated / 23.04kWh Usable
Model Number :
ESS-25KWH-12KW-Q
Price :
Negotiable
Brand Name :
Voltertech
Supply Ability :
5000 Sets per Month
Contact Supplier
Five Module All In One ESS Energy Storage System 12kW 25kWh With Dual MPPT

Voltertech Co.,Limited

Verified Supplier
1 Years
guangdong, guangzhou
Business Type :
Manufacturer
Total Annual :
5000000-10000000
Employee Number :
50~100
Certification Level :
Verified Supplier
Contact Supplier
Submit Requirement