Clayton Power has introduced a 400V three-phase battery system that can do the job of a large diesel generator.

The E-gen system is designed to sit in the back of a van or pickup, allowing welders, compressors and other high-output equipment to be run without the need to have an engine revving away.

It’s also capable of putting out 230V and 12V supplies, giving the option of running lower powered gear for extended periods of time.

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Output can be tailored to the task at hand by daisy chaining the appropriate number of 6kW battery packs together.

These are joined by cables, which are then hidden behind covers to give a neat, uncluttered finish.

Charging takes about eight hours, so users need to make sure they have enough capacity for a full day’s work and then replenish the cells overnight.

For now, Clayton Power is offering the E-gen as a hire only system, which means users can get them for specific contracts and, if using them for extended periods of time, need not worry about any long-term battery degradation.

Prices start at about £400 a month which, according to the firm, can be less than the monthly fuel bill of running a large diesel generator day in, day out.