Octopus Energy vs EDF Energy: Which Wins in 2026?

Octopus Energy vs EDF Energy comes down to your household profile, not one universal winner: recent live comparisons show EDF slightly cheaper on some fixed and tracker quotes, while Octopus is repeatedly rated stronger for smart-meter and electric-vehicle tariffs. For a bill-conscious household stuck on a standard variable tariff, either supplier’s cheapest fixed deal will usually beat the price cap floor, so the real question is which fixed, tracker or smart tariff suits how you use energy.

Free Price Compare runs quotes across UK energy suppliers so you can see live prices for your own postcode, meter type and payment method. Prices below are illustrative examples from recent comparisons and change frequently, so treat them as a guide and always check a live quote for your address before switching.

Last updated: August 2026

Written by the Free Price Compare editorial team | Reviewed August 2026

Is Octopus Energy cheaper than EDF?

Neither Octopus nor EDF is reliably cheaper than the other; the winner changes with your postcode, meter type, payment method and usage. In one recent live comparison, EDF’s cheapest fixed example (Simply Fixed 2Yr) sat at around £1,693/year while the closest Octopus fixed example came in at around £1,697/year, a gap of only a few pounds. In a different quote set, Octopus Fixed edged ahead at roughly £143/month against EDF fixed at around £146/month. That reversal between quote sets is the whole point: a difference of a few pounds a month can swing either way once your actual consumption and standing charges are applied.

For a household on a standard variable tariff above the price cap floor, the more useful comparison is not Octopus versus EDF in the abstract, but each supplier’s cheapest fixed deal against your current bill. Both frequently price their fixed tariffs below the prevailing cap, so switching off a variable rate is where the real saving sits. Free Price Compare sources tariff information from energy suppliers and Ofgem publications to build these live comparisons.

Compare live energy prices for your postcode

Octopus vs EDF prices: fixed and tracker tariffs compared

Fixed and tracker tariffs from Octopus and EDF cluster close together on price, with EDF often marginally cheaper on headline fixed examples and Octopus competitive on both fixed and flexible deals. A fixed tariff locks your unit rate and standing charge for a set term, protecting you from cap rises but usually carrying exit fees if you leave early. A tracker follows a published index and can fall below a fixed rate when wholesale costs drop, but rises when they climb.

Figures are indicative and may change.

EDF’s tracker product follows wholesale movements and can undercut its own fixed tariff when prices are falling, which is why some two-person households weigh EDF tracker vs fixed before committing. Octopus’s Flexible Octopus tariff is a standard variable product that tracks the Ofgem price cap. If you want certainty over the next year or two, a fixed deal from either supplier removes the guesswork; if you are comfortable with some month-to-month movement, a tracker can pay off when wholesale costs ease.

Do standing charges and exit fees change the winner?

Standing charges and exit fees frequently decide which supplier is cheaper once the headline unit rate looks similar. A standing charge is a fixed daily cost you pay regardless of how much energy you use, and for a low-usage household a slightly lower standing charge can outweigh a marginally higher unit rate. Differences of around a pound or so a month on the standing charge are common between suppliers and add up over a year. Exit fees on fixed tariffs can cost around £25 to £75 per fuel if you leave early, so a cheaper-looking fixed deal is not automatically better value if you might switch again soon. Always compare the total annual cost, not just the unit rate.

Not sure which tariff suits your usage?

Compare Octopus, EDF and other UK suppliers side by side in minutes.

Compare energy deals

Which supplier is better for EV drivers and overnight charging?

Octopus is widely regarded as the stronger choice for electric-vehicle owners, though EDF competes hard on overnight rates. Octopus Intelligent Go is a smart EV tariff offering low off-peak rates reported in the region of 7p to 8p per kWh for overnight charging, and it can automatically schedule your car’s charging to hit the cheapest window. EDF’s GoElectric Overnight has been quoted at around 6.49p per kWh overnight in one comparison, which would undercut Octopus on the pure off-peak rate for drivers who charge at home.

The right EV tariff depends on more than the headline off-peak number. Octopus Intelligent Go extends its cheap window and manages charging through the app and compatible chargers or vehicles, which suits drivers who value automation. EDF GoElectric Overnight can appeal to households wanting a straightforward low overnight block. Both require a working smart meter. If you also generate solar power, check each supplier’s export rates under the Smart Export Guarantee before choosing. For a wider view of smart-tariff options, our Octopus Energy vs OVO Energy smart meter comparison covers how these tariffs stack up.

See EV and smart tariff options

Should I switch from Octopus to an EDF fixed tariff?

Switching from a Flexible Octopus variable tariff to an EDF fixed tariff can make sense if you want price certainty and EDF’s fixed deal beats what you currently pay. A household on Flexible Octopus is tracking the Ofgem price cap, so any fixed tariff priced below the cap will save money while it lasts. Recent examples put EDF’s Simply Fixed and Octopus’s own fixed tariffs within a few pounds a month of each other, so the deciding factors are exit fees, standing charges and whether you prefer EDF’s or Octopus’s service.

Before you move, check three things: the fixed term (a longer fix locks the rate for longer but limits your ability to grab a cheaper deal later), any exit fees on both your current tariff and the new one, and whether your smart meter will keep sending readings after the switch. If you are only switching from a variable to a fixed tariff, staying with Octopus on their own fixed deal avoids a full supplier change while still cutting your cost off the cap. Compare both routes on a live quote before deciding.

Which is greener, Octopus or EDF?

Octopus and EDF both supply electricity backed by renewable credentials, but their generation profiles differ. Octopus Energy sources its electricity from renewables and has built its brand around green generation, smart demand management and rewarding customers for shifting usage to greener, cheaper periods. EDF Energy generates a large share of Britain’s low-carbon electricity through its nuclear fleet, so its supply is heavily low-carbon rather than purely renewable.

If your priority is renewable-sourced electricity and flexible green tariffs, Octopus is the more obvious fit. If low-carbon nuclear generation and a large established supplier appeal to you, EDF makes a strong case. Both let you reduce your footprint further by moving usage to off-peak periods on a smart tariff. Green credentials rarely change the headline price much, so weigh them alongside cost rather than in isolation. You can see how Octopus compares with other suppliers on green tariffs in our Octopus Energy vs E.ON Next comparison.

How do their apps and customer service compare?

Octopus is consistently rated highly for customer service, app usability and short call wait times, while EDF offers solid self-service tools including its Energy Hub for tracking usage. Octopus makes submitting meter readings and switching straightforward through its app, and its smart-tariff features are built around app-led control of when you use energy. That app-first approach suits households that want to actively manage usage and cost.

EDF’s Energy Hub gives good visibility of consumption and is well regarded, though some users note it does not always split Economy 7 day and night usage clearly. For households that value hands-on flexibility and fast support, Octopus tends to lead; for those who want a large, established supplier with predictable billing and decent digital tools, EDF holds up well. If service quality is your deciding factor, the difference between the two is smaller than the difference between either and a poorly rated supplier. Our Octopus Energy vs British Gas guide puts service quality in wider context.

Compare suppliers on price and service

How to choose the right supplier for your household

Choose your supplier by matching the tariff type to how you actually use energy, then comparing the total annual cost for your postcode. Start by checking whether you are on a standard variable tariff sitting at the Ofgem price cap; if you are, both Octopus and EDF fixed deals will usually save you money. The Ofgem price cap limits the unit rates and standing charge a supplier can charge a typical user on a variable tariff, but it does not cap your total bill, which still rises with usage.

• If you own an EV or a smart meter and want to shift usage to cheap windows, prioritise Octopus Intelligent Go or EDF GoElectric Overnight and compare the off-peak rates.
• If you want fixed, predictable bills, compare each supplier’s cheapest fixed tariff and check the term length and exit fees.
• If wholesale prices are falling and you can tolerate variation, a tracker tariff such as EDF’s Simply Tracker can undercut a fix.
• If green sourcing matters most, Octopus leans renewable while EDF leans low-carbon nuclear.

Whichever you lean towards, run a live comparison for your own address including standing charges and exit fees, since a difference of a few pounds a month between Octopus and EDF frequently swings on those details alone. You can also weigh alternatives such as So Energy versus Octopus Energy or So Energy versus EDF Energy before you commit.

Ready to see your real prices?

Get live Octopus, EDF and whole-market quotes for your postcode.

Start comparing

• Octopus Energy vs OVO Energy: Best Smart Meter Tariffs
• E.ON Next vs OVO Energy: Best Tariffs & Service in the UK
• Octopus Energy vs ScottishPower: Best Tariffs & Service
• E.ON Next vs Scottish Power: Best Tariffs & Service
• So Energy vs Octopus Energy Which Supplier Is Better?

Information correct as of 10 August 2026. Prices, tariffs, policy details and providers change frequently, so please check the latest details before making a decision. This article is for general information only and does not constitute financial advice. Free Price Compare is authorised and regulated by the Financial Conduct Authority (FCA).