Explore the chart. Hover, focus or select any point to see its exact values.
Points are interactive: hover, focus or select one for exact values. Shaded band is the cheapest-to-dearest spread within each month; the line is the duration-weighted mean. 2 periods are drawn from part of the calendar rather than all of it: Aug 2026 (29 of 31 days), Sept 2026 (9 of 30 days). A month is partly counted where a version went on or came off sale inside it, and the current month is always still in progress. They are drawn hollow.
Each month shows the version of Octopus Fixed you could actually have signed up to then, so the line follows the tariff through its successive versions rather than any one product code. Older versions carry on publishing rates for months after they stop selling; those are not averaged in, because nobody could buy them. Drawn from the stored daily rollups across every payment method the tariff publishes; where a tariff publishes more than one, the rates above show the direct-debit one and this line sits between them.
Against the Ofgem price cap
Not enough complete months of both this tariff and the cap to compare them yet.
Before you switch
Is Octopus Fixed a fit?
A quick suitability check before you compare the live price with your own home and usage.
Reviewed 24 August 2026
01
Essentials
You need
A compatible electricity meter and a currently available product version for your region.
02
Best fit
Works best if
You value a simpler rate structure over active half-hourly scheduling.
03
Check carefully
Watch out for
Standing charges, eligibility, product versions and future rates can change the outcome.
04
Pairing
Compatible export choices
Check the current Octopus smart-tariff terms before pairing any export product.
Make the final check
How to verify or switch
1Check the exact tariff name, product version, regional quote, eligibility and current terms with Octopus Energy.
2Use OctoTariffs history and calculators as evidence, not as a supplier quote or guarantee of future cost.
EvidenceEligibility and tariff sourcesShow sourcesHide sources
Lock in your electricity rate for the length of the contract. Your unit rate and standing charge are fixed for the term, which protects you from price rises and provides certainty. No matter what happens to wholesale prices or the price cap, your rate stays the same for the full term, so you know exactly what you'll pay each month, making it easier to budget and plan your finances. A fixed tariff is ideal for customers who want price certainty and protection from price rises, those who prefer to budget with fixed monthly costs, people who don't want to monitor energy prices or switch tariffs frequently, and anyone comfortable with a commitment to a fixed rate.