Does British Gas EV Power work with any home charger?

Yes for the fixed overnight rate. Schedule the vehicle or charger inside the published window. British Gas Power+ has its own compatibility requirements, so check the exact charger before relying on that additional discount.

Do I need a special charger for Intelligent Octopus Go?

No if Octopus supports the vehicle integration. A compatible EV can let Octopus manage charging through the car. A supported charger is the other route, and a fixed-window schedule remains available for the guaranteed cheap period.

Which tariff is better for high daytime household use?

Compare the quoted peak rate and standing charge for your postcode, not only the EV rate. British Gas can be competitive outside the cheap window; Intelligent Go usually wins the EV line. The tariff comparison calculator models both parts of the bill.

Costs and tariffs/10 August 2026/8 min read/By Joe McGrath

Updated 10 August 2026 — Rates, eligibility and product names checked against British Gas and Octopus on 10 August 2026.

British Gas EV Power vs Octopus Intelligent Go: Which Fits Your Home?

Explainer

British Gas offers a simple five-hour window; Octopus adds a lower rate and managed scheduling. Compare the whole-home cost, eligibility and charger fit.

The short answer

Choose Octopus Intelligent Go when you want the lower standard EV rate and the supplier to handle scheduling. Choose British Gas EV Power when you already prefer British Gas, want a plain clock-based tariff, or have a compatible setup that qualifies for its separate Power+ discount.

The ordinary headline comparison favours Octopus: 8p/kWh across 11:30pm–5:30am, against 9p/kWh across 12am–5am. The whole-home answer is less automatic. British Gas records a lower representative peak rate, while standing charges and the exact quote vary by region.

Side by side

	British Gas EV Power	Octopus Intelligent Go
Lower rate	9p/kWh	8p/kWh
Lower-rate window	12am–5am	11:30pm–5:30am
Recorded peak rate	27.69p/kWh	31.64p/kWh
Scheduling	Timer in the car or charger	Eligible vehicle or charger integration
Standard charger requirement	Any reliably timed charger	Compatible EV or charger for managed charging
Best fit	Existing British Gas households and simple schedules	Drivers who value automation and a lower standard EV rate

These are the site's current canonical facts. Both suppliers quote postcode-dependent prices, so the final decision should use the live quote and your own household usage.

What the rate difference is worth

On the shared default model, British Gas EV Power puts EV electricity at £257 a year. Intelligent Go puts it at £229. That isolates the car and assumes the modelled off-peak share is achieved.

The full household estimates are £1,205 for EV Power and £1,257 for Intelligent Go. Those figures also include the representative household load and standing charge. Change the mileage, vehicle efficiency, daytime electricity use or postcode and the ranking can move.

This is why the off-peak rate is a useful filter, not a complete answer. A household with electric heating, a home office and little ability to move appliances overnight can care more about the peak rate than a low-mileage EV does about one penny on its charging rate.

Scheduling and compatibility

British Gas EV Power

The base tariff is simple. Electricity used in the published five-hour window is billed at the lower rate, including household use. Set a schedule in the car or charger and leave it there. Any charger that can reliably follow that schedule is suitable.

British Gas also markets Power+, which discounts eligible smart charging on a compatible setup. Treat that as a separate product condition. Confirm the exact vehicle, charger, smart-meter mode and tariff before putting the additional discount into a savings calculation.

Intelligent Octopus Go

Octopus can manage charging through a supported vehicle or charger integration. You set the target and ready-by time; the system allocates charging within the product rules. A Tesla can usually use its vehicle integration, so it does not need an Octopus-specific wallbox.

Since May 2026, managed EV charging is capped at six hours in a midday-to-midday period. The extra half-hours can still move around the day, but they do not create an unlimited cheap allocation.

Which charger suits each tariff

For EV Power's base window, a Tesla Wall Connector or any other dependable scheduled charger is enough. A supported smart charger becomes more relevant if Power+ is part of the plan.

For Intelligent Go, the Ohme Home Pro is the clearest charger-led automation route. Tesla owners can instead let the vehicle integration do the work and choose hardware on cable, price and installation fit.

The charger does not set the electricity price. Its job is to capture the rate reliably. Compare the best chargers for smart tariffs after choosing how much automation you actually need.

The verdict

For most eligible EV drivers, Intelligent Go is the stronger default. The standard rate is lower, the window is longer and managed scheduling removes a recurring task. British Gas EV Power remains a sensible choice for a household that wants to stay with British Gas, values its peak-rate structure or qualifies for a Power+ arrangement that changes the arithmetic.

Do not switch on the supplier name alone. Put your mileage, household use and postcode into the EV tariff comparison, then compare the two live quotes on the same assumptions.

Compare all EV tariffs | Read the British Gas review | Read the Intelligent Go review

Sources and checking

Rates, windows and eligibility were checked against the official British Gas EV Power and Octopus Intelligent Go product pages on 10 August 2026. Supplier quotes remain postcode-dependent.

FAQ

Frequently asked questions.

Not on the standard EV Power overnight rate. British Gas currently lists 9p/kWh during 12am–5am, while Intelligent Go lists 8p/kWh during 11:30pm–5:30am. British Gas Power+ can reduce eligible smart-charging cost further, but it needs a compatible setup and should be checked separately.

Your next useful step: compare both tariffs against the rest of the market.

Already chosen the tariff and charger? .