All-in-one ESS Solution

GCI25-50 All-in-one ESS

A 25kW all-in-one mini-grid and energy-storage system available with 40, 45, 50 or 55kWh of LiFePO4 storage for backup power, mini-grid and commercial or industrial ESS applications.

25kWNominal power

40–55kWhBattery range

IP55Protection

Better performance

Rapid on-grid and off-grid switching, generator-to-battery transfer, high cycle efficiency and low self-discharge.

Safer operation

Temperature detection and integrated dual-level fire-extinguishing systems protect the battery compartment.

Smarter management

Built-in energy management, generator start/stop control, load management, cloud monitoring and remote control.

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GCI25-50

Megatank Energy Storage

Integrated storage, conversion and intelligent control.

GCI25-50 integrates a hybrid inverter, AC power distribution unit, energy-management unit, battery modules and battery-control unit in one high-voltage system. It supports parallel expansion, generator control, PV priority, cloud monitoring and multiple operating modes.

Better performance

Rapid on-grid and off-grid switching, generator-to-battery transfer, high cycle efficiency and low self-discharge.

Safer operation

Temperature detection and integrated dual-level fire-extinguishing systems protect the battery compartment.

Smarter management

Built-in energy management, generator start/stop control, load management, cloud monitoring and remote control.

Flexible expansion

Supports up to 15 systems, up to four battery clusters, AC-side parallel operation, DC coupling and multiple working modes.

Convenient deployment

Modular, standardised cabinet construction supports easier transport, installation and outdoor use.

Designed forBackup power, mini-grids and commercial or industrial self-consumption

GCI25-50

Technical specifications

Specifications are grouped for faster scanning on desktop and mobile.

System Specification

Nominal output / maximum AC input power: 25kW / 27.5kW
Battery capacity range: 40 / 45 / 50 / 55kWh
Battery chemistry: LiFePO4
IP protection: IP55
Cooling method: Battery: air conditioning; Electrical: temperature-controlled forced-air cooling
Cabinet dimensions (W×D×H): 1030×800×2000mm
Warranty: 5 years

Hybrid Inverter

Nominal power: 25kW
Battery voltage range: 320–800V
Maximum charging / discharging current: 80A

AC Side – Grid

Nominal output / maximum AC current: 25kW / 40A
Nominal AC voltage / range: 400V / 230V (-20% to +15%)
Frequency / range: 50Hz / 47–52Hz; 60Hz / 57–62Hz
AC current THD: <5% with resistance load
Adjustable power factor: -0.8 to +0.8
Adjustable reactive power: -15kVA to +15kVA

AC Side – Micro-grid

Nominal AC voltage: 400V / 230V (-5% to +5%)
AC voltage THD: <3% with resistance load
Unbalanced load capacity: 100%
AC output power: 25kW

PV Input

Open-circuit / MPPT voltage range: 250–850V / 200–830V
Short-circuit current / maximum PV power: 25+25A / 15+15kW

General

Maximum efficiency: 97.80%
Operating ambient temperature: -30–60°C; derating above 45°C
Relative humidity: 5–95%, non-condensing
Maximum operating altitude: 2000m; derating above 2000m
Grid support: LVRT, active and reactive power control, and power ramp-rate control

Battery

Module voltage: 48V
Module capacity: 5.04kWh
Module quantity: 8 / 9 / 10 / 11 series
Operating temperature: Discharge: -20–55°C; Charge: 0–55°C
Maximum charging / discharging current: 52.5A / 105A
Safety: UN38.3

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