Electric Hook-Up (EHU)
Also known as: EHU, shore power, mains hook-up, campsite electric
A campsite mains connection: a 230V supply you plug into via a dedicated lead, letting the van run mains appliances and recharge its leisure battery.
Electric hook-up (EHU) is the British campsite term for shore power. You connect with a CEE 'commando' lead — the blue round 16A connector — from a site bollard to the van's inlet, feeding a consumer unit with an RCD for safety.
Most UK and European pitches supply 16A, but many older or busy sites limit the bollard to 6A or 10A, so a fan heater plus a kettle can trip it. In winter, hook-up is how a non-solar or lithium van keeps the leisure battery full and runs a mains charger; for an all-electric build it is the honest fallback when short British days starve the solar. Always check the site's amperage before relying on it.
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Reviewed 2026-06-26 · by Maximus