UK public EV charging prices are easiest to compare when you price the same amount of energy through the payment method you would actually use. A low advertised unit rate can lose its advantage after a subscription or separate parking charge. I would compare the complete stop, including the time and location, rather than sorting chargers by one number.

1. The total unit rate in UK public EV charging prices

Compare pence per kilowatt hour, usually written p/kWh. Government guidance requires the maximum session price to be visible before charging, including applicable fixed charging fees expressed within that unit price.

The displayed maximum must not be exceeded after the session starts. Dynamic prices can fall below it, so preserve the actual offer. A hypothetical 20kWh session costs £12 at 60p/kWh or £16 at 80p/kWh, before any separately payable parking.

Check the rate for the actual connector and payment route. Trade Mirror is an incidental website reference, not a live charger tariff. A network’s advertised starting price need not apply to every site or payment method.

2. The speed your car can accept

Kilowatts describe charging power; kilowatt hours describe energy supplied. Paying a higher unit rate at a powerful charger does not guarantee the fastest possible session for your car.

The vehicle’s capability, battery temperature and charge level affect the power accepted. Consider whether a slower charger suits a long stop, while a rapid site can be worth more on a time sensitive journey.

Do not compare a charger label with an assumed constant speed throughout the session. Match the likely time saving to the extra pounds required for the energy you need.

3. Subscriptions against genuine monthly use

Calculate the membership fee alongside its discounted unit rate. With a hypothetical £8 monthly fee and a 10p/kWh saving, you need 80kWh each month merely to recover the fee.

Check which sites qualify, whether a reduced allowance runs out and what happens after a promotional period. Government guidance says subscription pricing should identify the applicable rate and remaining discounted allowance where relevant.

I would use normal charging needs, not an unusually busy holiday month, when judging a recurring plan. Keep the calculation apart from general reading such as Capital Outlook. A saving that depends on unnecessary extra charging is not a saving.

4. Direct payment versus roaming

A third party app or charging card can offer convenient access across networks, but its price may differ from the operator’s own tariff. Compare the displayed rate in each route before starting.

Public charging rules require relevant roaming prices and markups to be shown in the same unit format. Do not assume contactless, an operator account and a roaming card are interchangeable prices simply because they activate the same equipment.

Look at the payment method you can reliably use, including a backup if an app or phone is unavailable.

5. Parking and time restrictions

Separate third party parking fees can sit outside the charging unit rate. Check signs for maximum stays, hours of operation and the conditions for using the bay.

Operator char.gy makes the practical point that plugging in does not remove ordinary parking rules. A cheaper charge can become an expensive stop if the stay exceeds the car park limit.

Read any occupancy related terms and establish the all-in amount before connecting. Keep a photograph of the signs and offer separately from ordinary browsing on News Notes. An advertised overnight tariff is useful only if overnight parking is actually permitted.

For regular local charging, compare a week of realistic sessions rather than one ideal stop. Note when you can park, the energy normally needed and which discounts remain available at those times before choosing a network.

6. Payment holds and the final session record

A card pre-authorisation reserves funds; it is not necessarily the final energy bill. Compare the amount held and allow for temporary effects on available spending money.

Retain the session’s charger identity, energy supplied, rate and receipt. Query unexplained differences with the operator or payment provider.

The best comparison is the total usable stop: suitable charging, clear terms, accessible payment and a price justified by the journey.

This article provides general consumer information, not personalised legal or financial advice; local rules, agreements and individual circumstances determine the applicable requirements.