EDF GoElectric vs Intelligent Octopus Go EV tariffs compared
A UK homeowner’s guide to choosing between EDF GoElectric and Intelligent Octopus Go for EV charging at home — what matters (and what to double-check) before you switch.
- Compare how the off-peak charging works and what you need (meter, app, compatible charger/vehicle).
- See who each tariff tends to suit, plus real-world scenarios with estimated costs (no invented unit rates).
- Get a trust-led quote for your postcode to see live prices, eligibility and terms.
Prices and availability vary by region, meter and payment method. We don’t show or guess live unit rates here — use the quote journey for today’s figures.
Fast answer: EDF GoElectric vs Intelligent Octopus Go EV tariffs compared
Intelligent Octopus Go can be the better value if you can let the system schedule most charging into its smart off-peak windows, because it may automatically shift more of your EV kWh into cheaper periods. EDF GoElectric can suit drivers who prefer a simpler set off-peak window and more manual control. The right choice depends on your meter, device compatibility and actual charging pattern.
Choose on how you charge
If you regularly plug in overnight and can be flexible on exact timing, “intelligent” scheduling may suit you. If you top up at fixed times or prefer manual control, a fixed off-peak window may fit better.
Compatibility is a deal-breaker
Some EV tariffs rely on a smart meter and a compatible EV or home charger with an app. If your setup isn’t supported, you may not get the intended off-peak benefits.
Don’t decide without your postcode
Unit rates and standing charges vary by region, meter type and payment method. Use a whole-of-market comparison to see the live tariff terms available to your address.
Compare EV tariffs properly (and avoid common switching mistakes)
For EV tariffs, the headline “cheap hours” is only part of the story. The right comparison checks your meter type, your charging pattern, and the rest-of-day rate you’ll pay for normal household electricity.
What to gather first
- Your postcode (prices vary by region)
- Smart meter status (SMETS2 / working half-hourly data)
- EV battery size and typical miles/week
- Whether you can charge overnight regularly
- Charger/vehicle make and app you use
Quick rule of thumb
If your EV uses a meaningful share of your home electricity (for example, regular overnight charging), an EV tariff can help. If you rarely charge at home or mostly charge at public rapid chargers, the benefit may be limited.
Get a postcode-accurate EV tariff comparison
We’ll use your details to show available EV-friendly tariffs (including EDF and Octopus when available for your region/meter). You’ll see live rates and key terms before you decide.
Two realistic scenarios (with numbers you can adapt)
The cheapest tariff depends on how many kWh you can move into off-peak hours. Below are examples using energy quantities (kWh) rather than live p/kWh rates. To estimate your cost, multiply the kWh by the live rates you see in your quote.
Scenario A: Overnight commuter (high flexibility)
- Assumptions
- 10,000 miles/year, home charging average efficiency 3.5 miles/kWh, charges mostly overnight.
- Estimated EV electricity
- ~2,850 kWh/year (10,000 ÷ 3.5).
- Why it matters
- If 70–90% of those kWh land in the cheaper window (via scheduling or habit), an EV tariff is more likely to beat a standard single-rate tariff — but only if the daytime/unit rate and standing charge still work for your household usage.
Scenario B: Low-mileage driver (limited benefit)
- Assumptions
- 4,000 miles/year, 3.2 miles/kWh, charges irregularly and sometimes in the evening.
- Estimated EV electricity
- ~1,250 kWh/year (4,000 ÷ 3.2).
- Why it matters
- If only 30–50% of charging happens off-peak, the “cheap hours” may not offset a higher peak/day rate. In this case, comparing against the best standard tariff (and any exit fees) is essential.
What’s the difference between EDF GoElectric and Intelligent Octopus Go?
Both are designed to make overnight EV charging cheaper than peak-time electricity. The meaningful differences are usually how the off-peak period is applied, what’s required to access it, and whether the system can intelligently schedule charging for you.
| Feature that affects your bill | EDF GoElectric (typical approach) | Intelligent Octopus Go (typical approach) | What to check in your quote |
|---|---|---|---|
| Off-peak window | Often based on set cheap hours overnight (varies by product/version). | Usually uses smart scheduling; you tell it when you need the car ready and it schedules within cheaper windows (subject to compatibility). | Exact cheap hours, how many hours, and whether the cheaper rate applies automatically or only when charging is controlled via an app. |
| Peak / day rate impact | May be higher at other times compared with standard tariffs. | May be higher at other times compared with standard tariffs. | Your household’s daytime usage (cooking, heat pumps, WFH) and whether a higher peak rate would outweigh EV savings. |
| Smart meter / data | Typically requires a smart meter for time-of-use pricing. | Typically requires a working smart meter and reliable half-hourly readings for scheduling and billing accuracy. | Whether your meter is smart and communicating; how readings are collected; what happens if smart data drops out. |
| Compatibility requirements | Often works with standard EV charging routines; some features may depend on specific chargers/apps. | Usually depends on a compatible EV and/or smart charger and app permissions. | Whether your car/charger is supported; whether you’re comfortable granting app access; what happens if you override the schedule. |
| Terms that change the decision | Tariff type (fixed/variable), length, and any exit fees vary by version and time. | Tariff type (fixed/variable), length, and any exit fees vary by version and time. | Contract length, exit fees (if any), payment method, and whether it’s available to your region/meter setup. |
Checklist: who EDF GoElectric may suit
- You want a straightforward off-peak window and prefer manual control
- Your EV charging routine is consistent (e.g., plug in most nights)
- You’re happy to adjust habits to match cheap hours (dishwasher, immersion heater)
- You’ve checked the daytime rate won’t penalise your household usage
Checklist: who Intelligent Octopus Go may suit
- You can be flexible and let charging be scheduled automatically
- You have (or can get) a working smart meter and compatible EV/charger
- You want the system to optimise charging time rather than doing it manually
- You’re comfortable using an app and occasional scheduled charging changes
Costs, exclusions and common pitfalls (UK-specific)
EV tariffs can work brilliantly, but most disappointments come from a few predictable issues. Use these checks before you switch.
1) Higher peak/day rate
Some EV tariffs trade cheaper off-peak hours for a higher rate at other times. If you cook with electricity, run a heat pump, or work from home, this can reduce (or remove) the benefit.
2) Smart meter / data problems
Time-of-use tariffs typically need smart readings. If your smart meter isn’t communicating reliably, billing can be delayed or estimated. Check your in-home display and whether your supplier can see half-hourly reads.
3) Compatibility and app permissions
“Intelligent” charging may require specific chargers/vehicles and connecting your account in an app. If your model isn’t supported, you might not get scheduled off-peak charging as expected.
4) Standing charge and regional pricing
Standing charges and unit rates vary by region and change over time. Two neighbours can see different “best” deals depending on meter setup and payment method. Always compare using your postcode.
5) Exit fees and contract terms
Some fixed tariffs can have exit fees, while variable tariffs can change price. Check the tariff information label and your switching rights before committing — especially if you may move home.
FAQs
Do I need a smart meter for EDF GoElectric or Intelligent Octopus Go?
Usually, yes. EV time-of-use tariffs typically require a smart meter that can record usage by time period. If your meter isn’t smart or isn’t communicating, you may not be eligible or you may not receive accurate time-of-use billing. Confirm eligibility during the quote and with the supplier.
Will Intelligent Octopus Go work with my EV or home charger?
It depends. Intelligent-style tariffs commonly require a compatible EV and/or smart charger and the supplier’s app to schedule charging. Compatibility lists change, and some models need specific integrations. Before switching, check your exact EV/charger against the supplier’s current compatibility information and consider what happens if you override charging manually.
Can I still charge in the day if I’m on an EV tariff?
Yes — but daytime charging is normally billed at the peak/day rate, which can be higher than the off-peak rate. If you often need daytime top-ups, compare the peak rate carefully and estimate how much of your annual EV kWh will actually land in the cheaper window.
Are EDF GoElectric and Intelligent Octopus Go available everywhere in Great Britain?
Not always. Availability can vary by region, meter type, payment method and supplier rules at the time you apply. That’s why a postcode-based comparison is essential. If a tariff isn’t available to your address today, the quote results will show the closest alternatives you can actually switch to.
Could an EV tariff make my household electricity more expensive?
It can. If the peak/day rate (and sometimes standing charge) is higher than on a standard tariff, your non-EV usage may cost more. EV tariffs tend to work best when you can move a meaningful amount of electricity into off-peak hours — not just the car, but also appliances like dishwashers or washing machines where safe and practical.
How do I estimate how much I’ll spend charging on each tariff?
Start with annual EV kWh: miles driven ÷ miles per kWh. Next estimate what share will be off-peak (for example 70% if you mostly charge overnight). Then multiply off-peak kWh by the off-peak unit rate and the remaining kWh by the peak/day rate shown in your quote, and add standing charges. This method is more reliable than comparing “cheap hours” alone.
If I switch tariff, will my EV charger installation or warranty be affected?
Changing electricity supplier normally doesn’t affect the physical charger installation or warranty. However, if your charging relies on a particular app integration (for example for smart scheduling), switching tariff could change how that integration is used. If in doubt, check your charger manufacturer’s guidance and the supplier’s app requirements.
What if my smart meter stops sending readings after I switch?
Contact your supplier promptly and keep your own meter readings (and charging records) as a backup. Time-of-use tariffs depend on accurate time-stamped data, so missing half-hourly reads can complicate billing. Ofgem and Citizens Advice have guidance on billing issues and complaints if problems persist.
Trust, methodology & sources
Editorial transparency
- Written by:
- EnergyPlus Editorial Team
- Reviewed by:
- Energy Specialist
- Last updated:
- July 2026
How we assess EDF GoElectric vs Intelligent Octopus Go
Because EV tariff pricing changes frequently and differs by postcode, we focus on decision factors that stay relevant across updates:
- Eligibility & setup: smart meter requirements, half-hourly data, app/compatibility needs
- Cost drivers: how much EV kWh you can shift off-peak; potential peak-rate trade-offs
- User fit: flexible overnight charging vs manual control preferences
- Risk checks: exit fees (if any), contract length, what happens if readings fail
We do not publish or estimate live supplier unit rates in this guide. For exact figures and currently available products, use the postcode quote journey.
Limitations (what this page can’t tell you)
- Exact EDF/Octopus tariff names, unit rates and standing charges for your address today
- Whether your specific EV/charger combination is currently compatible with intelligent scheduling
- Your final bill impact without your real household consumption profile (day vs night usage)
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