Frequently asked questions
Everything you need to know about switching to Octopus Energy — from referral codes and tariffs to smart meters and green energy. 22 questions answered.
Last Updated: April 2026Referral & Sign-Up
The Octopus Energy referral bonus is £50 for residential customers. When you switch using a referral link, £50 is credited to your energy account once the switch completes. Business customers receive a £75 referral bonus. Both the person referring and the person switching receive the credit. Learn more about switching your business to Octopus Energy.
Tariffs & Pricing
The cheapest tariff depends on your usage patterns. Agile Octopus offers half-hourly pricing with a winter average of ~35p/kWh — it can go negative during off-peak times. Octopus Tracker follows the daily wholesale price with caps at 100p/kWh for electricity and 30p/kWh for gas. For EV owners, Intelligent Octopus Go saves 68% versus the standard tariff. Standard rates are approximately 27p/kWh for electricity and 6p/kWh for gas.
Switching Process
The online sign-up takes about 5 minutes. After that, the actual switch completes within 2–3 working days. During this time, your energy supply continues as normal — there's absolutely no interruption. Octopus handles all communication with your previous supplier. See our complete guide to switching for full details.
Smart Meters & Technology
No, you don't need a smart meter to switch. However, Octopus Energy does offer free smart meter installations, and having one lets you access their best tariffs like Agile Octopus, Tracker, and Intelligent Go. Smart meters also mean no more estimated bills.
Green Energy
Octopus Energy's electricity supply is 86.4% renewable and 13.6% nuclear, making it 100% zero-carbon at 0 g/kWh — compared to the UK average of 154 g/kWh. They invest in over 240 renewable energy projects across 10 countries with around 4GW of capacity and £6 billion in combined assets. See all the green energy benefits.
Ready to switch?
Join 7.3 million UK households who've already made the move to Octopus Energy. Get your £50 credit and start saving today.
Still researching? Read our Octopus Energy review, explore the full list of benefits, or see how switching works step by step.
Claim Your £50 Credit