Why Switch to Octopus Energy?
Over 7 million UK customers. The highest-rated energy supplier on Trustpilot. Here’s why.
Consistently the Cheapest
Octopus Energy is the only large UK supplier to have never charged the full Ofgem price cap since launching. Their fixed tariffs are typically priced well below the cap, and they’ve committed to passing on all government savings to customers.
For the current quarter, the Ofgem price cap is set at £1,641 per year for a typical dual-fuel household. Octopus’s fixed tariffs generally sit £100–£260 below this, depending on your region.
Get a No-Obligation Quote →Award-Winning Customer Service
Octopus has a 4.8 out of 5 rating on Trustpilot from over 770,000 reviews — making them the highest-rated energy supplier in the UK by a significant margin.
They’ve been named a Which? Recommended Provider for nine consecutive years, an achievement no other energy supplier can match. When you contact them, you speak to a real person who can actually help.
100% Renewable Electricity
Every single Octopus tariff includes 100% 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. From April 2026, smart charging rates dropped significantly — well below 10p per kWh in most regions.
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.
Switch Now & Get £50 Credit →Get £50 Free Credit
Switch to Octopus Energy through our referral link. It takes under 5 minutes.
Switch & Claim £50 →Referral verified March 2026. No code needed — credit applied automatically.