Growatt Off-Grid Energy Storage System with 6kW 48V Inverter, from 5.12KWh to 25.64kWh LiFePO4 Batteries, and 5.28kW Solar Panels

By Iconica


Delivery available

 Introducing the Growatt Off-Grid Energy Storage System: Ultimate Power and Flexibility

The Growatt Off-Grid Energy Storage System features a state-of-the-art lithium iron phosphate (LiFePO4) battery with a flexible capacity range from 5.12kWh to 25.64kWh. This advanced system is perfect for residential off-grid battery storage and also ideal for small business and industrial use.

The battery system is modular and equipped with internal plugs, eliminating the need for extra cable connections. All external cables are integrated into one plug, simplifying the connection to the inverter. Each module has an internal plug connection, and the battery pack connects quickly to the inverter with a single cable harness.

Unmatched Safety and Durability: The system includes cell security monitoring and balancing for enhanced safety. As a cobalt-free LFP battery, it offers high-temperature resistance, safety, and stability. With up to 6,000 charge cycles, the Growatt ARK 2.5L-A1 LV battery system has an expected service life of more than 10 years. It is designed to efficiently use and manage electrical energy, providing a stable electricity supply and cost-saving opportunities, such as charging the battery during low-priced nighttime hours.

Seamless Integration and Continuous Power Supply: By integrating the system with solar panels or a generator, you can ensure a continuous and reliable power supply 24/7 for your home.

Off-Grid Energy Storage System Includes:

Installation and Delivery: The price includes a basic set of cables, protection disconnectors, and accessories required for a fully operational system. User manuals and a connection diagram are supplied with your order. Mounting is not included—if you require a mounting system, contact us for advice or select a suitable option here.

The system must be installed by a licensed electrician or technician in compliance with all applicable regulations and guidance. For residential properties, please see the guidance here.

  • Growatt ARK 2.5L-A1 2.56kWh Lithium-Ion (LFP) Solar Battery Module: Developed with Growatt's own lithium iron phosphate cells and vertical industry integration, ensuring the highest safety and a life cycle of 6,000 cycles at a 90% Depth of Discharge. It includes a self-designed Battery Management System protecting against abnormal temperature, current, voltage, State of Charge, and the battery’s State of Health. Comes with a 10-year standard warranty covering manufacturing or material faults.
  • Growatt SPF 6000 ES 6.0kW 48V Single Phase Off-Grid Inverter: Combines a 3500W pure sine wave inverter, 80A MPPT solar charge controller, and a 60A smart battery charger in one unit. It can accept input from solar panels, mains power, a generator, or a battery from multiple sources. The inverter generates 3500W of continuous AC power and up to 7000W at peak times. The inbuilt 80A MPPT solar charge controller operates at up to 98% efficiency. The inbuilt 80A smart battery charger enables safe and efficient charging from mains power or a generator.
  • Canadian Solar 440W TOPHiKu6 Mono Black Frame MC4 Solar Panels: Reliable, efficient, and cost-effective with a high efficiency of 22.5%. They can withstand a heavy snow load up to 5400Pa and an increased wind load up to 2400Pa. The panels come with a 25-year product warranty.

Delivery: Free 2-3 working days' delivery within the UK (longer to the Highlands, Islands, and Northern Ireland).

Rated (Peak) Power (Wp): 440W in Standard 1000w/m2 solar light
Open Circuit Voltage (Voc): 39.40V (Vmp =32.40V)
Short Circuit Current (Isc)14.01A (Imp = 13.59A)
Cell TypeMono-crystalline Silicon
Connector Type: MC4
Certification: IEC 61215 / IEC 61730 / CE / INMETRO / MCS / UKCA
Panel Size:  1722 X 1134 X 30 mm
Net weight: 21.3kg
Origin: China
Nominal battery voltage: 48Vdc
Continuous power output: 6000W/6000VA 220-240VAC 50Hz
Surge power: 12000VA
Output waveform: Pure sine wave
Maximum solar input power: 8000W
Maximum solar input current: 50-100A
Maximum open circuit solar input voltage (Voc): 500V
Solar MPPT operating voltage: 120-450V DC
Maximum solar charging current: 100A
Maximum mains AC charging current: 80A
Peak Efficiency: 93%
Transfer Time: 10ms typical, 20ms Max.
Operating temperature: 0°C to 55°C
Protection Degree: IP20
Size:  395 x 460 x 132 mm
Net Weight: 13.5kg
Origin: China
Battery Type: Lithium-Ferro-Phosphate (LFP)
Nominal Capacity: 2560Wh
Nominal Voltage: 48V
Charge/Discharge Current: 50-100A
Warranty: 10 years
Communication Port: CAN
Cycle Life: >6000 
Installation Location: Indoor/Outdoor
Cooling: Natural
Scalability: Up to 6 units in parallel
Operating Temperature: -10°C ~ +45°C
IP Rating: IP65
Net Weight: 30kg
Size:  650 * 260 * 170mm

  • Quantity of batteries from 2x to 10x (depending on the chosen option) of Growatt ARK 2.5L-A1 2.56kWh Lithium-Ion (LFP) Solar Battery - 1 X Pallet, 
  • 1x Growatt SPF 6000 ES Off-Grid 6.0kW 48V Pure Sine Wave Inverter with Built-in 100A MPPT Solar Controller, 80A AC Charger - 1 X Box,
  • 1x set of cables, disconnectors, and accessories, and
  • 11x Canadian Solar 440W TOPHiKu6 Mono Black Frame MC4 Solar Panels - 1 X Double Pallet.

Your order will arrive in more than one delivery.

For more information, call us on 020 8064 0335 or email