The information you need before switching to Octopus Energy
Plain-English tariff breakdowns, live rates from the Octopus API and a referral page to use only after the tariff still fits. From a real customer, not affiliated with Octopus.
4.8/5
Trustpilot from 804,000+ reviews
9 yrs
Which? Recommended in a row
8 million
UK customers
Direct
signup needed for the referral credit
Homepage source check, 4 June 2026
Octopus's live homepage and public sources still show a 4.8 Trustpilot score, 804,000+ reviews and Which? Recommended Provider status for 9 years running.
Octopus's 24 April 2026 press release says it has reached 8 million UK home energy customers. Treat scale as context, not proof that every tariff suits every home.
Octopus's referral FAQ says the home referral credit needs a direct Octopus signup, a completed switch and the first monthly Direct Debit. Check the live tariff page before you use my referral.
Tools & calculators
See what Octopus actually charges
Live tariff rates from the Octopus API for your postcode, plus tools to figure out the right tariff for 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. The best Octopus tariffs if you generate your own power.
Which tariff suits you?
Answer a few questions about your household and we'll recommend the best tariff.
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, referral codes, 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?
The referral page keeps things simple, it explains how the £50 credit works, what to do if you signed up by phone and which guide to read 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.
Intelligent Go Charge Cap for solar, battery and export homes
How Intelligent Octopus Go Charge Cap affects solar, home batteries, export tariffs, smart slots and app evidence before you let automations fight each other.
Octopus July 2026 price cap: should you fix or wait?
Ofgem has confirmed the July to September 2026 price-cap rise. A calm guide to what Octopus Flexible, fixed and smart-tariff customers should check next.
Intelligent Octopus Go Charge Cap examples: small top-ups, low batteries and manual boost
Practical Intelligent Octopus Go Charge Cap examples for small top-ups, low-battery nights, manual boost, second EVs, Ohme settings and daytime smart slots.
Octopus heat pumps, solar and bank cashback: what to check before you count the saving
A practical guide to Lloyds, Halifax, Barclays, Nationwide, the Boiler Upgrade Scheme and Octopus finance when comparing heat pumps, solar panels or batteries.
Octopus Power Pack and V2G free EV charging: who does it actually suit?
A practical guide to Octopus Power Pack, vehicle-to-grid free EV charging, eligibility checks and when Intelligent Octopus Go or standard Go may be a simpler fit.