The information you need before switching to Octopus Energy
Compare Octopus Energy with clear tariff guides, live rates, practical tools, a knowledge base and independent articles. If Octopus fits your home, our referral link can get you £50 credit once your switch is complete. Existing customer? Find out how you can benefit too. T&Cs apply (only one switching offer per household).
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Trustpilot from 826,000+ reviews
9 yrs
Which? Recommended in a row
8 million
UK customers
Live
postcode tariff rates and tools
Tools & calculators
See what Octopus actually charges
Live tariff rates for your postcode, plus tools to narrow down the tariff that fits your setup.
Guides & reference
Understand what you're signing up for
Plain-English breakdowns of every tariff, switching guides and answers to the questions people actually ask.
Tariff guides
Agile, Go, Tracker, Flux, Cosy. What each one means in plain English.
How to switch
Step by step. Takes five minutes and your energy never gets cut off.
Octopus vs other suppliers
How Octopus stacks up against British Gas, EDF, OVO, E.ON and Scottish Power.
Solar & battery guide
Flux, Agile export, SEG rates and the live checks that matter if you generate your own power.
Which tariff suits you?
Answer a few questions about your household and narrow down the tariffs that may fit.
Choose by situation
Start from your real setup: EV, solar, fixed tariff ending, heat pump or switching from another supplier.
FAQ
Common questions about switching, the £50 credit, tariffs and smart meters.
Knowledge base
Deep dives into EV charging, solar panels, smart meters, billing and more. Everything you'd want to know before and after switching.
Ready when you are
Already decided on Octopus?
Use our referral link when you are happy the tariff fits. It explains the £50 credit, the key conditions and what to check first if you still want a quick sense check.
Articles
News, explainers and opinions on Octopus Energy
Tariff changes, practical guides and the occasional opinion piece. Some are based on direct experience, others are broader explainers about what changed and why it matters.
My honest Octopus Energy review
What I actually think after years as a customer. The good parts and the bits that annoy me.
Electricity market reform: what it could mean for Octopus customers’ bills
Octopus says electricity-market reform could lower bills over time. Here is what has been proposed, what is still to be decided and what to check on your account now.
Octopus Arlo AI support trial: what customers should check before trusting an AI reply
Octopus is trialling Arlo, an AI customer-support assistant. Here is what the trial means for routine emails, human handoff, complaints and evidence if you are an Octopus customer.
Why your Octopus bill or Direct Debit may look different after the July price cap
A practical July 2026 guide for Octopus customers checking a higher bill, Balance Forecast or Direct Debit after the new price-cap period starts.
Octopus smart-tariff savings claim: what it means before you switch
A practical June 2026 guide to Octopus smart-tariff savings, what the almost £1bn claim means, and how to compare smart tariffs before using the referral page.
Snug Octopus for storage heaters: what Economy 7 homes should check
A practical June 2026 guide to Snug Octopus, Economy 7, storage heaters, RTS replacement checks and when the referral page should wait.