We compare the major UK suppliers so you can see who's cheapest right now. Our Octopus tariff data is pulled live from their public API every 6 hours.
Get £50 Credit — Switch to Octopus →Based on our monthly comparison of major UK suppliers, Octopus Energy is currently one of the cheapest options for both fixed and variable tariffs. As at March 2026, Octopus's standard fixed tariff undercuts British Gas, OVO Energy, EDF Energy and E.ON Next on an equivalent basis.
Price comparisons should always be based on your own usage and postcode — unit rates and standing charges vary by region. The figures below are typical national averages for a household using 2,900 kWh electricity and 12,000 kWh gas annually. Always get a personalised quote before switching.
The following Octopus tariffs are pulled directly from the Octopus Energy public API and cached every 6 hours. These are the current products available to domestic customers.
The smart EV tariff with super cheap electricity between 00:30 - 05:30 every night
With Intelligent Octopus Go EV tariff, you have access to a super low electricity rate between 23:30 - 05:30 every night, plus it smart-charges your car at the cheapest and greenest times overnight.
With our OEV exclusive Intelligent Octopus Go EV Saver tariff, you have access to a super low electricity rate between 23:30 - 05:30 every night, plus it smart-charges your car at the cheapest and greenest times overnight.
This fixed tariff locks in your unit rates and standing charges for 12 months. This tariff has a £50 early exit fee per fuel.
Cosy Octopus is a heat pump tariff with eight hours of super cheap electricity every day to warm your home.
Non-smart prepayment tariff
Non-smart prepayment tariff
For registered Octopus Zero Bills homes ONLY. Fair Use Allowance specific to the property, based on home size instead of annual consumption.
For exact unit rates in your area, use the personalised quote tool →
When comparing energy suppliers, it's tempting to focus solely on the monthly estimate. But experienced switchers know that the total cost of ownership includes more than just the unit rate and standing charge:
The cheapest deal for a specific household depends on its location (region affects unit rates), usage level and whether they have gas and electricity or electricity only. Here's how to find your best deal in five minutes:
Get a personalised quote from Octopus in under 3 minutes.
Use our referral link and get an extra £50 credit when you switch.
Get My Free Quote + £50 Credit →Real people saving real money with Octopus Energy