Switching your domestic electricity to a dedicated electric vehicle (EV) tariff is the single highest-impact step you can take to slash running costs. While charging on a standard variable tariff typically costs 24p to 26p per kWh, dedicated overnight EV tariffs drop charging rates to as low as 6.9p to 7.0p per kWh—reducing the cost of driving 100 miles from roughly £7.50 down to approximately £2.00.
However, choosing the best EV tariff requires evaluating more than just the headline off-peak rate. You must balance the length of the overnight charging window, the daytime peak rate (which powers your home), the daily standing charge, and hardware compatibility constraints.
2026 UK EV Tariff Comparison Table
The table below summarizes the leading domestic electric vehicle tariffs in Great Britain:
| Provider & Tariff Plan | Off-Peak Unit Rate | Peak / Day Unit Rate | Daily Standing Charge | Off-Peak Window | Eligibility & Requirements |
| :--- | :--- | :--- | :--- | :--- | :--- |
| Octopus Energy
Intelligent Octopus Go | 7.00p / kWh | 24.50p / kWh | 48.00p / day | 23:30 – 05:30 (6 hrs)
+ dynamic slots | Compatible EV (Tesla, VW, BMW, etc.) or smart charger (Ohme, Wallbox) |
| British Gas
Electric Driver | 6.90p / kWh | 26.10p / kWh | 51.20p / day | 00:00 – 05:00 (5 hrs) | Smart meter (SMETS2), Hive EV charger or compatible car |
| EDF Energy
GoElectric | 6.99p / kWh | 25.66p / kWh | 53.40p / day | 00:00 – 07:00 (7 hrs) | Smart meter; open to any EV & any home charger |
| E.ON Next
Next Drive | 6.90p / kWh | 27.20p / kWh | 55.10p / day | 00:00 – 07:00 (7 hrs) | Smart meter; fixed rate contract |
| Octopus Energy
Octopus Go (Standard) | 8.50p / kWh | 25.50p / kWh | 48.00p / day | 00:30 – 04:30 (4 hrs) | Communicating smart meter; no hardware lock-in |
| OVO Energy
Charge Anytime | 7.00p / kWh | Standard Variable (~24.50p) | Standard (~53.00p) | Anytime via smart app | Compatible EV or Indra/Ohme smart charger |
To calculate exact monthly and annual figures for your specific vehicle battery size and annual mileage, use our Interactive Rate Comparison Tool.
Best EV Tariff Winners by Use-Case
Every household has unique electricity consumption patterns and hardware setups. Here is our breakdown of which tariff wins based on specific driving scenarios:
1. Best for Tech-Integrated Smart Charging: Intelligent Octopus Go
- The Winner: Intelligent Octopus Go
- Why it wins: Octopus remains the benchmark for intelligent demand-side management. By integrating directly with your car's API or smart chargepoint, Octopus guarantees at least 6 hours of charging at 7.00p/kWh overnight. Furthermore, when surplus offshore wind or solar generation floods the National Grid, Octopus automatically assigns extra dynamic charging slots during daytime hours at the same 7.00p off-peak rate.
- Watch out for: Smart charging slots are capped at 6 scheduled hours per 24-hour cycle unless additional grid balancing needs arise.
2. Best for High Mileage & Two-EV Households: EDF GoElectric or E.ON Next Drive
- The Winners: EDF GoElectric (6.99p) & E.ON Next Drive (6.90p)
- Why they win: Both plans offer a massive 7-hour overnight window (00:00 to 07:00). A standard 7.4kW home wallbox can deliver over 51 kWh of electricity within this 7-hour span—enough to add roughly 180 miles of range every single night. For households with large battery packs (e.g., 77kWh+ in an Kia EV6 or Tesla Model Y Long Range) or families running two electric cars on a shared driveway, 4-hour windows are insufficient.
- Watch out for: E.ON Next Drive carries a higher peak rate (27.20p/kWh). If your daytime home consumption is substantial, calculate whether EDF's lower daytime rate (25.66p/kWh) yields a lower total bill.
3. Best for Older EVs and Non-Smart ("Dumb") Chargers: EDF GoElectric
- The Winner: EDF GoElectric
- Why it wins: Unlike Intelligent Octopus and OVO Charge Anytime, EDF GoElectric does not require you to own a specific car brand or smart chargepoint. As long as you have an operational SMETS2 smart meter, the clock-based 7-hour window applies to your entire property. You can simply use your vehicle's dashboard charge timer.
4. Best for Low Daytime Usage or Solar Homes: Octopus Go (Standard)
- The Winner: Octopus Go (Standard)
- Why it wins: While its off-peak rate is slightly higher at 8.50p/kWh, Octopus boasts one of the lowest daily standing charges (48.00p/day). For low-mileage drivers who drive under 5,000 miles per year, a difference of 5p to 7p per day on standing charges outweighs tiny savings in off-peak pence per kilowatt-hour.
Beware the Daytime Peak Rate Trap
When evaluating an EV tariff, looking exclusively at the overnight unit rate is a dangerous financial mistake.
For the average UK household using 2,700 kWh of domestic electricity per year (separate from vehicle charging), roughly 80% to 85% of standard household power (televisions, ovens, lighting, home office computers) occurs during the daytime peak window:
- If you switch to an EV plan with an aggressive 27.2p peak rate, your household electricity costs will rise compared to a standard variable tariff capped around 24.5p.
- If you charge an EV for 7,400 miles/year (~2,100 kWh), an overnight rate of 7.0p saves you roughly £367 per year compared to standard 24.5p electricity.
- However, if high daytime peak rates inflate your regular domestic bill by £150, your net savings drop significantly.
Before switching, review your annual kWh split. If you work from home or use an electric heat pump during the day, prioritize tariffs with balanced peak pricing (such as Intelligent Octopus Go or EDF GoElectric).
How to Switch to an EV Tariff
- Verify Your Smart Meter: Check your in-home display (IHD) to confirm your smart meter is transmitting regular half-hourly meter readings. If you still have an older meter, request a free smart meter installation from your current provider.
- Review Home Charger Setup: Ensure your home wallbox is operational. If you are planning an installation, use our Home Charger Installation Cost Calculator to review quotes, DNO fuse requirements, and OZEV grant eligibility.
- Compare Personalized Rates: Plug your annual mileage and typical charging schedule into our EV Tariff Comparison Tool to see net annual savings customized for your property.
- Initiate the Switch: Apply directly through the supplier's website. Under the Energy Switch Guarantee, your switch completes within 5 working days with no disruption to your electricity supply.
Frequently Asked Questions
What is the cheapest EV tariff in the UK right now?
As of September 2026, British Gas Electric Driver (6.90p/kWh, 5h window), E.ON Next Drive (6.90p/kWh, 7h window), and EDF GoElectric (6.99p/kWh, 7h window) offer the lowest headline overnight rates. Intelligent Octopus Go follows closely at 7.00p/kWh with smart dynamic dispatch.
Do I need a smart meter to get an EV tariff?
Yes. All modern time-of-use EV tariffs require a communicating smart meter (SMETS2 or upgraded SMETS1) that can record half-hourly electricity consumption. Your supplier will install one for free if you do not already have one.
Can I run home appliances during the off-peak charging window?
Yes, on whole-house two-rate tariffs like Intelligent Octopus Go, Octopus Go, EDF GoElectric, and E.ON Next Drive, all electricity used across your home during the off-peak window is billed at the lower rate. The exception is add-on tariffs like OVO Charge Anytime, which only discount electricity drawn by the EV charger.
What is the difference between Intelligent Octopus Go and standard Octopus Go?
Intelligent Octopus Go pairs directly with your car or smart charger to optimize charging slots (minimum 6 hours guaranteed between 23:30 and 05:30) at 7.00p/kWh. Standard Octopus Go is a fixed 4-hour clock timer window (00:30 to 04:30) at 8.50p/kWh that works with any EV and timer.
Marcus Vance
Lead Energy Analyst & EV Infrastructure Specialist
Marcus has spent over 9 years analyzing domestic electricity tariffs, time-of-use pricing models, and residential renewable integrations across the UK and North American markets. Former consultant for smart grid distributed energy resource pilots.