What does an EV really cost to run in Guernsey?
Would an EV save you money in Guernsey? Enter your miles and how you charge. You’ll see a year of electricity next to a year of petrol or diesel, with Guernsey Electricity’s July 2026 tariffs filled in.
- Island tariffs built in. Standard and Super Economy 12 from 1 July 2026.
- Your numbers, not ours. Every price is editable.
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Prices checked 24 October 2026.
Start here
- EV vs petrol calculator for Guernsey: pounds, miles, mi/kWh and mpg.
- Charging in Guernsey: tariffs, public chargers, duty and the planned transport tax changes. Fastest public charger in Guernsey: 22 kW AC at Co-op St Martin's (Plug-N-Go). There is no public DC rapid charging on the island (seen on site, 24 Oct 2026; some online listings still show older DC units). Price: check the Plug-N-Go app.
- EV charging across the Channel Islands, including Jersey.
A typical year
6,000 miles at 3.5 mi/kWh is about 1,714 kWh. On the Economy 12 low rate that is about £225; on Standard about £446. The same miles in a 45 mpg petrol car use about 606 litres, about £1,131 at the 186.6p island average (GSY Fuel Prices, 22 Oct 2026). Standing charges are extra on both electricity tariffs.
Guernsey has no official island-average pump price, so we use one retailer’s published forecourt price. Change it to what you pay. Jersey version
Compare public charger prices: Prices change, check before you charge. The price shown in the operator’s app or on the charger is the one you pay.