Octopus Go
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Quick summary: Octopus Go from Octopus Energy offers 8.5p/kWh off-peak during 12:30am–5:30am (5 hours) and 31.64p/kWh at peak times. Works with any home charger. Simplest EV tariff.
Octopus Go is the simpler sibling of Intelligent Go. Instead of smart scheduling and vehicle API integration, it gives you a straightforward 5-hour off-peak window from 12:30am to 5:30am at around 8.5p/kWh. There's no need for a compatible charger or vehicle API — just set your Tesla or charger to start at 12:30am and you're done.
Best for: EV owners who want simple, cheap overnight charging without worrying about smart charger compatibility or vehicle API setup.
How It Works
Octopus Go is a time-of-use tariff with a fixed off-peak window. Every night from 12:30am to 5:30am, your electricity rate drops to approximately 8.5p/kWh. Outside that window, you pay the peak rate of around 35p/kWh. There's no smart scheduling, no vehicle API, no charger communication — you simply set a charging timer on your car or charger to activate during the off-peak hours.
For Tesla owners, this is straightforward: go to the Tesla app, set scheduled charging to start at 12:30am, and your car handles the rest. The 5-hour window provides enough time to add roughly 35kWh on a 7kW charger, which equates to about 120 miles of range — more than enough for most daily commutes.
Who It Suits
Go is best for drivers who don't need the extended off-peak hours of Intelligent Go and prefer simplicity. If your daily driving is under 120 miles, the 5-hour window is sufficient. If you regularly drive more, or want the flexibility of extra off-peak slots during the day, Intelligent Go is worth the switch.
Cost Breakdown
| Scenario | Cost per full charge | Annual cost (10k miles) |
|---|---|---|
| Octopus Go off-peak (8.5p/kWh) | ~£5.10 | ~£243 |
| Standard variable (~24.5p/kWh) | ~£14.70 | ~£700 |
| Petrol equivalent | ~£18.60 | ~£1,860 |
Compatible Chargers
Octopus Go works with any charger. There's no smart integration required — just set a charging schedule. The Tesla Wall Connector is a great match because you can schedule charging natively in the Tesla app. Smart chargers like the Ohme Home Pro also work, though you won't benefit from their smart tariff features on Go (switch to Intelligent Go for that).
For charger recommendations and a full tariff comparison, see our best smart EV charger guide. Compare this rate against every UK EV tariff in the UK EV Charging Cost Index.
Rate Breakdown
Tariff Details
Pros
- ✓Simple setup — just set a charging timer
- ✓No smart charger or vehicle API required
- ✓Good off-peak rate at 8.5p/kWh
- ✓Works with any charger on the market
- ✓No exit fees on variable contract
Cons
- ✕Only 5 hours of off-peak (vs 6 on Intelligent Go)
- ✕Peak rate of 31.64p/kWh is higher than some competitors
- ✕No additional off-peak slots during the day
- ✕Shorter window than Intelligent Go's 6 hours
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