Why Your Neighbour's Charger Costs Less: Mapping the UK's Public Charging Price Divide

The price on the pole is only half the story

If you have ever pulled into a motorway services, tapped contactless and winced, you already know public charging is not a single market. In 2026, the UK's public network is a patchwork of site owners, electricity contracts, council ambitions and convenience premiums. The result is a genuine regional spread: the same car, charged at the same speed, can cost noticeably more in one town than another.

That matters because most drivers do not charge in a vacuum. They charge where life happens—outside a supermarket, at a leisure centre, on the way to school, or during a meeting. The postcode premium is not just about where you live. It is about which charging business model has reached your bit of the map.

Motorway services: convenient, rarely cheap

Motorway rapid charging is the clearest example of a convenience tax. You are paying for a captive audience, a prime site and, often, a landlord who knows the value of a 20-minute stop. In 2026, many ultra-rapid sites at services sit in the high 70s to mid-80s pence per kWh range, with some contactless tariffs higher still if you do not use the operator's app or subscription.

That is not automatically bad value. If you need 40 miles of range to finish a journey, the alternative might be a 15-mile detour. The mistake is treating motorway charging as your default weekly top-up. It is a tool for long trips, not a routine.

Supermarkets and retail parks: the quiet middle ground

Supermarket and retail-park chargers have become the sensible middle ground. They are usually slower than a motorway ultra-rapid—often 7kW to 50kW—but the price per kWh is frequently lower. You might see 50p to 65p per kWh at a supermarket rapid, and less at a slower AC post, depending on the operator and whether the site is subsidised.

The real saving is not just the tariff. It is the fact that you were going to be there anyway. A 30-minute shop can add 15 to 25 miles on a 50kW charger, or far more on a rapid if your car accepts it. That turns an errand into a charging stop without adding a separate journey.

Council-run sites: the wildcard

Council-run charging is where the regional gap gets most interesting. Some authorities have invested in hubs with competitive pricing—sometimes 40p to 55p per kWh—as part of air-quality or tourism strategies. Others have handed sites to operators and stepped back, leaving prices closer to the commercial norm.

This is why two towns 30 miles apart can feel like different countries. One may have a subsidised hub near a park-and-ride; the other may have a single rapid in a retail car park priced at a premium. Neither is necessarily profiteering. Electricity distribution costs, site leases, maintenance and utilisation all vary. But for your household budget, the effect is the same: the same weekly mileage can cost £15 or £30 depending on where you plug in.

Contactless vs subscription: do the break-even maths

The other divide is how you pay. Contactless is brilliant for occasional top-ups, but it often carries a higher per-kWh rate than an app or RFID card. Subscription tariffs can cut 5p to 15p per kWh, sometimes more, but only if you charge enough to cover the monthly fee.

A simple rule: multiply the subscription fee by 12, then divide by your likely annual public kWh. If the discount per kWh is higher than that number, it is worth considering. If you mostly charge at home and use public charging six times a year, contactless is probably cheaper overall—even at the higher rate.

Work out your real cost per mile

The only number that matters is pence per mile, not pence per kWh. Here is the method:

1. Find your car's real-world miles per kWh. Use the trip computer over a week, not the brochure figure. A compact EV might return 3.5 to 4.0 miles per kWh in mixed driving; a larger car or a cold week will be lower.
2. Take the charging price in pence per kWh and divide it by your miles per kWh. That gives pence per mile.
3. Multiply by the miles in your regular journey.

Example: a 60-mile weekly school run and shopping loop in a car returning 3.8 miles per kWh. At 79p per kWh, that is 20.8p per mile, or £12.48 a week. At 49p per kWh, it is 12.9p per mile, or £7.74. Over a school year, the difference is hundreds of pounds—for the same miles.

Route-planning tactics that do not add hours

You do not need to become a charging strategist. You need three habits.

First, filter by price, not just speed. Apps such as Zapmap and A Better Route Planner let you see tariffs before you set off. On a regular route, save two or three cheaper sites as favourites.

Second, charge where you already stop. A supermarket with a 50kW charger, a leisure centre with 22kW posts, or a council hub near a park can all work around a normal errand. The best charging stop is the one you were making anyway.

Third, use the motorway network for what it is good at: bridging gaps on long journeys. If you can arrive at a services with enough charge to reach a cheaper town, do that. A 10-minute top-up at a premium site is often smarter than a 40-minute detour, but a 40-minute detour to save £3 is rarely worth it.

The postcode premium is real—but not fixed

Public charging prices in 2026 are still moving. Competition, council policy and grid connections all shift the map. The practical response is not to chase the cheapest kWh in the country. It is to know your own pence per mile, identify the two or three sites that fit your routine, and avoid paying motorway prices for a Tuesday top-up. Your neighbour's charger may cost less, but with a little planning, yours can too.