Givingenergy asecond chance

Mobile battery storage built from second-life EV batteries. Designed, manufactured and tested in Norway.

See the systemTalk to us
308kWhEnergy storage
230kWPower
2 800kgMoves on a truck
2strings× 154 kWh, our own modules
The Mulligan BESS 308 with its doors open, showing the battery modules
Mulligan BESS 308

Full power where the grid gives up

Construction sites, festivals and sports fields often have a connection that’s far too small. Our battery charges when power is available and delivers it when you need it. Plug it in and it runs.

Island mode

Runs with no grid at all.

Hybrid

Generators run only when needed.

Peak shaving

Covers the peaks a small connection can’t.

Automatic backup

Grid fails? Power continues without interruption.

DatasheetHow we build
References

Where it works

All projects
Construction site
25 A → 80 A

Construction

A hoist running on a connection far too small for it.

 Outdoor concert
−60% diesel

Festivals

Hybrid with generators for a whole concert season.

 Baseball field at night
58 kW on 17 kW

Sports venues

Field lighting for evening training, quietly.

 Electric construction machine
DC fast charge

Heavy equipment

Charging electric machines where there is no grid.
Live from Mulligan Dispatch

How it works

10 kW in. 200 kW out. A 10 kW grid connection runs a 200 kW load. The battery covers the rest, and you can follow every kilowatt live: grid, converters, battery strings and load.

3D view of a Mulligan unit: 10 kW from the grid, 190 kW from the battery, 200 kW delivered to the load
Battery64 %discharging 190 kW
Grid10 kWimporting
Consumer200 kWdelivering
Mulligan DispatchLive
Live single-line diagram: 10 kW from the grid, four converters at 47.5 kW each, two battery strings at 95 kW each, 200 kW delivered to the load
10 kW
importing
231 / 232 / 231 V · 50.00 Hz
200 kW
delivering · 87 % of rating
−47.5 kW
−47.5 kW
−47.5 kW
−47.5 kW
−95 kW
discharging · 826 V · −115 A
−95 kW
discharging · 851 V · −112 A
Four converters

62.5 kW each. Here sharing the load at 47.5 kW, with mode and temperature for every one.

Two battery strings

154 kWh each. Here delivering 95 kW each, with state of charge, voltage and cell spread.

Grid and load

Set the maximum grid draw and the system adjusts itself. Peak output is 230 kW from the battery plus available grid, up to 270 kW total load.

Set the grid limit with one tap

Choose how much the system may draw from the grid with a single tap on the battery’s touchscreen. Match it to your connection, and the battery covers everything above it.

Grid down? Power stays on.

If the grid connection drops, the system switches to island mode by itself and keeps delivering to the load without interruption. Your site never notices.

Mulligan Dispatch

Your whole fleet, live, on any screen

Power, state of charge, position and alarms for every unit in real time, from the office or the field.

See the portal
Mulligan Dispatch on a laptop and a phone
Made in Norway

Built and tested here.
Every step.

All engineering and production of modules and systems happens in Norway, with quality checks at every stage before a system ships.

How we build

Need power where the grid can’t deliver?

Tell us about your site and what you need to run. Buy, rent or resell, we’ll find the right setup.

Contact us