world'S first circular economy
energy storage system

As we transition away from natural gas and other fossil fuels, there is no question that we need to make better use of renewable energy in as sustainable a way as possible. Using our patented compression technology Essential battery, we have designed the Offgen, energy storage system that works with renewable technology to store clean energy as electricity.

LiFePO4

chemistry

Solar & Grid

charging

5.6 / 8.4 / 11.2 kWh

options

89%

total efficiency

All-in-one solution
a single modular unit compact
energy storage system

Extended life
designed to be easily
serviced and upgraded

Remote monitoring
‍‍
for real-time performance updates
and maintenance requests

Peace of mind
greater energy resilience
without the footprint

How it works
during the day

Your PV system is generating energy that is stored in the Offgen. You can use that energy during the day while your Offgen keeps on charging, or sell the excess energy to the grid if your energy storage system is fully topped up.

The Essential is designed to be easily taken apart and maintained

SERVICEABLE, MAINTAINABLE
AND UPGRADEABLE

The Offgen is the first energy storage system that has been engineered to support a sustainable model, using our future-proofed Essential batteries. Unlike other products on the market, every individual part of the Offgen can be removed for repair, replacement or upgrade, extending the life of the system. And, true to our company-wide value of avoiding waste, batteries that has been replaced can be repurposed or recycled.

The Essential is designed to be easily taken apart and maintained
The Essential is a type 31 lithium-ion battery 240x330mm

Modular
BY design

While most systems require additional wall-mounted components for their installation, the Offgen is an all-in-one system. It is an electrical grade cabinet, which can be installed inside or outside which contains: lithium-ion batteries, hybrid inverter, communications interface and switchgear, making it compact and easy to install.
The Offgen provides the flexibility to store and use energy from on-site PV or low-tariff grid energy.

A flexible energy system
that can work with the grid

Users can choose the appropriate capacity for their home, upgrading as their needs grow, with a capacity of 4kWh up to 11kWh within the same cabinet. 
While the Offgen can easily be used off-grid, it is also designed to be connected to the grid, enabling a home to store excess clean energy either for its own use or for selling back onto the grid for use during peak demand periods. The system can then recharge from the grid during off-peak hours, capitalising on cheaper tariffs.
This setup creates a more flexible energy system, increasing the possibilities for renewable energy and helping to decarbonise the grid.

DAY

How it works
during the day

Your PV system is generating energy that is stored in the Offgen. You can use that energy during the day while your Offgen keeps on charging, or sell the excess energy to the grid if your energy storage system is fully topped up.

The Essential is designed to be easily taken apart and maintained

How it works
at night

Your house uses the energy stored in the Offgen from your PV during the day.
The Offgen can also be topped up with low-tariff grid energy at night.

The Essential is designed to be easily taken apart and maintained

How it works
during the day

Your PV system is generating energy that is stored in the Offgen. You can use that energy during the day while your Offgen keeps on charging, or sell the excess energy to the grid if your energy storage system is fully topped up.

The Essential is designed to be easily taken apart and maintained

How it works
during the day

Your PV system is generating energy that is stored in the Offgen. You can use that energy during the day while your Offgen keeps on charging, or sell the excess energy to the grid if your energy storage system is fully topped up.

The Essential is designed to be easily taken apart and maintained

Find the right one for you

4-battery system

Peak Power
Total PV Power
Usable Energy Capacity
Battery Charging
Dimensions
request details
6 kW
Up to 6 kW
5.6 kWh
Solar & Grid
400x800x1400mm

6-battery system

Peak Power
Total PV Power
Usable Energy Capacity
Battery Charging
Dimensions
request details
6 kW
Up to 6 kW
8.4 kWh
Solar & Grid
400x800x1400mm

8-battery system

Peak Power
Total PV Power
Usable Energy Capacity
Battery Charging
Dimensions
request details
6 kW
Up to 6 kW
11.2 kWh
Solar & Grid
400x800x1400mm

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