Fixed
Octopus Energy’s fixed tariffs lock in the unit rate and standing charge for a set term (typically 12 months) so you’re protected from wholesale price rises during that period.
What is Octopus Energy?
Octopus Energy is a UK-based gas and electricity supplier that places strong emphasis on renewable energy and customer service.
Founded in 2015, it has grown rapidly and offers a wide range of tariffs designed to suit different customer needs. Its business model also emphasises transparency, clean generation, and innovative pricing.
What types of tariffs does Octopus Energy offer?
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Variable
The variable tariffs mean that the cost of energy can rise or fall, typically at the point when the price cap changes or wholesale prices shift.
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Electric vehicle
Octopus Energy EV tariffs feature ultra-cheap off-peak electricity. Intelligent Octopus Go adds smart charging control to shift charging automatically to the cheapest times.
How to contact Octopus Energy
Email: hello@octopus.energy
Telephone: Freephone 0808 164 1088
Postal address: 6th Floor, 33 Holborn, London, EC1N 2HT
Live chat and web support: Available on the Octopus website
Frequently asked questions
How long is the fixed tariff term with Octopus Energy?
It is typically 12 months for many of their fixed tariffs, which locks your unit rates and standing charges for that period.
Do I need a smart meter for the EV tariffs?
Yes. For tariffs like Intelligent Octopus Go you will need a compatible SMETS2 smart meter (and in some cases a compatible EV charger/vehicle) so that the tariff can shift charging automatically.
Does Octopus Energy supply 100% renewable electricity?
Yes. Octopus says its electricity supply for customers is backed by 100% renewable energy (though bear in mind all domestic supply is drawn from the national grid).
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How to switch energy provider
Whether you’re looking for cheaper rates, greener energy, or more flexible terms, the switching process is simpler than you might think.
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Decide what to change
Choose whether to switch to a new supplier or pick a different tariff with your current one. What matters most to you? Price? Flexibility? Green credentials?
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Check your current deal
If you’re on a standard variable tariff, you can switch anytime; if it’s fixed, check if there’s an exit fee.
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Compare deals
Compare tariffs with MoneySuperMarket. Consider price, customer service, and special features like EV charging or green energy.
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Sign up with a new provider
Apply online or by phone. Your new supplier will handle the switch, and you’ll have 14 days to change your mind.
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Finalise the switch
Choose your switch date, take a meter reading, and pay your final bill. If your old supplier owes you money, they must refund you within 10 working days of your final bill.
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Know your rights
If your switch is delayed, you may get £40 compensation. You can cancel within the cooling-off period without a fee.
Our expert says…
Will fixing my rate save me money?
It's worth thinking ahead and bearing in mind that a fixed rate energy deal could save you money during the coming months. Switching to a fixed rate energy tariff can protect you from future energy price volatility and save you hundreds of pounds over the course of the year.
More and more energy providers are releasing tariffs for new customers, so run a comparison and see if you could switch and save money on your energy bills.
Ashton Berkhauer Home & Utilities Expert
Find everything you need to know about energy tariffs
Looking for other energy options?
Reviewed on 7 Jan 2026
