UK’s largest supplier

Why Switch to Octopus Energy?

Over 8 million UK customers and the UK’s largest energy supplier. Here’s why.

Competitive Prices & Fixes to Beat Rises

Octopus fixed tariffs have often been priced below the Ofgem price cap, and they lock your rates for the length of the deal — useful with bills forecast to keep rising.

For October – December 2026, the Ofgem price cap is £1,723 a year for a typical dual-fuel household, and forecasters expect a further rise of 16–26% in January 2027 (see forecasts). Prices vary by region, so get a quote to compare with what you pay now.

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Award-Winning Customer Service

Octopus has one of the highest Trustpilot ratings of any UK energy supplier, from hundreds of thousands of reviews.

They’ve been a Which? Recommended Provider for many years running. When you contact them, you speak to a real person who can actually help.

Renewable Electricity as Standard

Octopus electricity tariffs come with renewable electricity from sources like wind, solar, and hydro. This isn’t a premium add-on or a green option — it’s the default across all their plans.

Smart Tariffs That Actually Save Money

Octopus offers more innovative tariffs than any other UK supplier:

Intelligent Octopus Go – Designed for electric vehicle owners, this tariff offers overnight charging at heavily discounted rates. Smart charging rates are typically a fraction of the standard unit rate.

Agile Octopus – A half-hourly variable tariff linked to wholesale prices. For households that can shift usage to off-peak times, savings of 30–50% are achievable.

Octopus Tracker – Your rate follows the wholesale market daily. Transparent pricing with no surprises.

Cosy Octopus – Built for heat pump owners, offering three cheap-rate windows throughout the day.

No Exit Fees

Most Octopus fixed tariffs come with no exit fees, meaning you’re free to switch to a better deal at any time. This is unusual in the energy market, where exit penalties of £30–£60 per fuel are common.

The Switching Process Is Painless

Switching takes under 5 minutes online and completes within 5 working days. Octopus handles everything with your old supplier — you don’t need to make a single phone call.

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Beat the January 2027 Rise

Bills are forecast to rise 16–26% in January 2027. Get a no-obligation Octopus quote in under 5 minutes, and £50 credit when you switch.

Switch to Octopus & Get £50 →

Link checked 30 September 2026. No code needed — credit applied automatically.

Switch to Octopus Energy Get £50 free credit – November 2026
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