Is car-park EV charging worth it?

The honest answer is: sometimes — and it depends far more on your site than on the hardware. Here's how to tell whether it pays for yours.

THE SHORT ANSWER

Car-park charging is worth it when utilisation and dwell fit support it, and the right commercial model is chosen. UK chargers average about two hours' use a day; roughly 15% utilisation is break-even and 30-35% is clearly profitable, with payback commonly 3-5 years on a well-sited owner-operated scheme. On a public site with uncertain demand, a fully-funded deal makes it worth it a different way — provision, footfall and a revenue share at £0 capital and no risk. It is not automatically worth it: the wrong charger for your dwell, a weak location, or a rapid bank that needs a six-figure grid connection can push it past the point of sense. We'll tell you which case yours is.

The three ways charging pays

Only one of these is the electricity margin, and for many car parks it isn't the biggest one:

Direct charging revenue. On an owner-operated scheme you keep the spread between the retail price (UK public charging runs roughly 61-92p/kWh) and your energy cost. Thin per-unit margins mean this only adds up at real utilisation.
Footfall and dwell. For retail, leisure and hospitality, the charger is a reason to choose your site. An EV driver who stops to charge shops, eats or stays — the captured spend often dwarfs the kWh margin.
Yield on otherwise idle land. A fully-funded deal turns spare bays into a revenue-share or ground-rent line with no capital outlay — worth it as pure yield even where you'd never run chargers yourself.

What tips it from worth-it to worth-it-a-lot

The economics improve sharply when the fundamentals line up: high or captive footfall, dwell time matched to the charger (cheap AC where cars sit for hours, rapid where they don't), grid headroom that dynamic load balancing can use without a costly upgrade, and eligibility for the Workplace Charging Scheme or the 100% first-year tax allowance. Get those right and a scheme that looked marginal on a spreadsheet becomes a clear yes.

When car-park charging is NOT worth it (yet)

We'd rather lose the sale than sell you a stranded asset, so here are the cases where we'll tell you to wait or scale back:

Low, uncertain utilisation with owner-operated capex. If demand is thin and you're funding it yourself, the payback can stretch past the point of sense — a funded model or a smaller phase-one is the honest answer.
The wrong charger for the dwell. Rapid DC on a long-stay commuter car park strands capital and grid capacity; slow AC on a supermarket loses the short-shop driver. Mismatched spec is the fastest way to make it not worth it.
A rapid bank on a badly constrained supply. If a site needs a new HV connection and customer substation running into six figures for demand that isn't there, the numbers won't work — we'll say so.
Public parking counting on the Workplace Charging Scheme. It doesn't apply to public off-street bays; a business case built on it is built on sand.

By the numbers: a realistic read

The honest version avoids a single headline figure and shows the range. Take a pair of 50kW rapids on a retail site at roughly £60,000 all-in, earning about 21p/kWh net (after the retail-minus-energy spread and a ~45% deduction for maintenance, standing charges and fees):

Quiet site (~10% utilisation): ~£17,000 net a year — payback past 3.5 years, and worth it mainly as provision + footfall, or via a fully-funded deal that removes the risk.
Busy destination (~30% utilisation): ~£50,000 net a year — payback around 1.5 years, and clearly worth owning outright.

UK chargers average roughly two hours' use a day, and industry commentary puts break-even near 15% utilisation and clear profitability around 30–35%, with payback most commonly in the 3–5 year band. Where your site lands on that curve is location-driven — footfall, local EV density and dwell fit — which is exactly what a feasibility measures rather than assumes. For retail, leisure and hospitality, remember the footfall and dwell value often outweighs the kWh margin entirely: an EV driver who stops to charge shops, eats or stays.

What a feasibility actually checks

Rather than a headline promise, a proper feasibility answers the questions that decide whether it's worth it for your specific car park:

Demand: a realistic utilisation estimate from your footfall, dwell profile and local EV density — not a network average.
Power: whether your existing supply can take the charger mix via dynamic load balancing, or whether a DC bank triggers a costly connection.
Model: funded vs owner-operated modelled side by side on your numbers, with the crossover point flagged.
Money: the grants and 100% tax relief that genuinely apply to your site, and the honest net cost and payback range after them.

If those four line up, car-park charging is usually worth it. If they don't yet, we'll tell you what would need to change — the honest answer beats a stranded asset every time.