Octopus Energy

Octopus Energy is a UK energy supplier with over 8 million customers, a 4.8 Trustpilot rating, and 100% renewable electricity. They are Ofgem-regulated, Which? recommended for five years running, and operate under the energy price cap.

Octopus Energy is a UK energy supplier founded in 2015 that has grown to serve over 8 million customers. They supply 100% renewable electricity and have consistently topped customer satisfaction rankings. Octopus holds the highest Trustpilot rating of any UK energy company at 4.8 out of 5, and has been named a Which? Recommended Provider for five consecutive years. They are fully regulated by Ofgem and operate under the energy price cap, meaning you will never pay more than the government-set maximum rate on their standard variable tariff.

The Octopus Energy referral gives both the new customer and the referrer £50 in bill credit. You receive the credit after your first direct debit payment. There is no limit on referrals. Business customers get £100 instead of £50.

The Octopus Energy refer-a-friend scheme gives both the referrer and the new customer £50 in account credit. When you click the referral link on this page and complete your switch to Octopus Energy, the £50 credit is applied to your energy account after your first direct debit payment is taken. The person who referred you also receives £50. There is no limit on the number of people you can refer, making this one of the most generous ongoing referral programmes in the UK energy market. Business customers switching to Octopus Energy for Business receive £100 instead of £50.

Octopus Energy is best for UK households who want renewable energy, excellent customer service, and competitive prices. EV owners benefit from cheap overnight rates on Octopus Go, and solar panel owners can earn money exporting excess energy.

Octopus Energy suits most UK households, but it is particularly good for customers who value responsive customer service and want renewable energy without paying a premium. If you have an electric vehicle, their Octopus Go tariff offers significantly cheaper overnight charging rates. Households with solar panels can benefit from the Octopus Outgoing tariff, which pays you for excess energy exported to the grid. If you simply want a reliable, fairly priced energy supplier with excellent support, Octopus is a strong choice.

Octopus Energy has the highest Trustpilot score (4.8) of any UK energy supplier, above E.ON Next (4.5), British Gas (4.0), and EDF (2.4). Their £50 referral matches E.ON Next. Unique smart tariffs like Tracker and Go set them apart from all competitors.

Compared to the Big Six legacy suppliers, Octopus Energy typically matches or beats the energy price cap while providing significantly better customer service. Their Trustpilot score of 4.8 is well above competitors like E.ON Next (4.5), British Gas (4.0), and EDF (2.4). Unlike many suppliers, Octopus offers genuinely innovative tariffs — Octopus Tracker follows wholesale prices daily, Octopus Go gives cheap overnight rates, and Octopus Agile adjusts prices every 30 minutes. Their referral reward of £50 matches E.ON Next and is among the highest in the energy market.