Built to earn its place on site.
A modular battery power system for temporary and off-grid power, built and supported in Great Britain.
No noise. No fumes. No mess.
Battery power takes the generator out of the working environment entirely.
· Silent in operation
· No emissions at the point of use
· No fuel stored or handled on site
· Works indoors and in restricted-access locations
Scalable and configurable.
Size the system to the job instead of hiring the largest unit available and running it at a fraction of its capacity.
· 4 to 16 kW real power · 5 to 20 kVA apparent
· 8 to 24 hours of runtime (@2kW average load)
· One to four units, single or three phase
· Solar and generator input supported
Lower cost to run, week after week.
The savings that matter aren’t in the purchase price. They’re in everything the unit doesn’t need while it’s out working.
· No fuel, and no refuelling visits
· No servicing oil, filters, belts or engine hours
· One unit out of service doesn’t stop the job
It goes where the work is.
Individual units can reach places a single large set could never be positioned.
· One person can reposition a unit on braked castors
· Fits through doorways and down restricted approaches
· Stack up to 2 for transport and storage
· Power sits next to the load, shortening cable runs
One unit, or four working as one.
The INNI Grid BI230 is designed to scale from a standalone power unit to a multi-unit microgrid arrangement.
Battery extension UNIT
BE200
Adds 20.5 kWh · up to two per unit
Multi-unit arrangement
Microgrid
Up to four units · 20 kVA · 16 kW
Standalone
BI230
15.4 kWh · 4 kW · 5 kVA
Build the system your job needs.
Set the load, the number of units and the battery, then add optional solar and generator to see what happens to runtime and fuel. Every figure is provisional while development continues.
Working through a specific job? Tell us the details in the survey and we’ll come back with a proper answer rather than an estimate.
Provisional operating envelope.
REAL POWER
4 kW per unit · 16 kW across four
PROVISIONAL
Apparent power
5 kVA per unit · 20 kVA across four
Chemistry
LFP — lithium iron phosphate
Runtime at 2 kW
6.4 hours
Output voltage
230 V AC single phase, 50 Hz
Outlets
2x 16 A or 1x 32 A commando sockets
Solar input
Up to 2.5 kW
Generator control
Automatic start/stop
Weight, BI230/BE200
Approx. 210/215 kg
Monitoring
Local touchscreen and remote access over 4G
Territory
Great Britain — England, Scotland and Wales
Want to find out more?
Register your interest to receive development updates and take part in the survey for the INNI Grid.
Modular battery power systems for temporary and off-grid power, designed and built in Great Britain.
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Product status. The INNI Grid BI230 and BE200 are in development. Neither product is currently placed on the market or available for supply in Great Britain. Conformity assessment is in progress and no unit will be supplied until it conforms to all applicable UK legislation and a declaration of conformity has been issued.
Specification. All figures shown are provisional design estimates, subject to confirmation by test. They do not constitute a performance guarantee or a contractual specification. Photographs show prototype units and final production units may differ.
INNI Offgrid Ltd · Registered in England and Wales · Company no. [TBC] · © 2026