Fixed
Fixed rate tariffs lock in rates and charges for the duration of the contract, insulating you from changes in Ofgem’s quarterly price cap. 12 and 24 month contracts are available.
What is So Energy?
So Energy is a London-based supplier of gas and electricity. Focusing on helping customers reduce their environmental impact, its electricity comes from 100% renewable sources.
Customers can even vote for the renewable energy source that powers their homes, choosing between wind, solar, hydro and biomass. The total vote is counted, and So Energy will then use the winning energy source the following year.
As well as a commitment to renewable energy, So Energy aims to make its tariffs accessible to everyone’s budget.
What tariffs does So Energy offer?
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Variable
So Energy's standard variable tariff (SVT) is called So Flex. It fluctuates in line with global energy price changes or changes to Ofgem's energy price cap. It doesn’t lock you into a fixed term and allows easier switching without incurring exit fees.
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Electric vehicle
The So EV (electric vehicle) tariff is designed for people who are looking for cheaper energy to charge their vehicles overnight. Between 12am to 5am unit rates are dropped to 6.5p/kWh.
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Smart Export Guarantee
If you generate your own energy you might like to know that So Energy is part of the UK Smart Export Guarantee, meaning they'll pay you for surplus electricity you export back to the grid.
So Energy dual fuel tariffs
Like other energy suppliers in the UK, So Energy offers the best deals with dual fuel tariffs.
It can be more convenient to get your gas and electricity from the same supplier, to manage payments and bills. And if you’re facing problems, you only need to get in touch with one point of contact.
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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.
How to contact So Energy
There are several convenient ways to get in touch with So Energy:
Online chat: So Energy’s chat service is the quickest way to connect with an advisor, and it's available on their website Monday - Friday, 9am - 5pm.
Contact form: You can also send a message through the contact form on their website. Responses are typically provided Monday - Friday, 9am - 5pm.
By phone: For general customer support, billing questions, and emergencies, call 0330 111 5050.
By email: For non-emergency support such as meter issues or billing discrepancies, you can email help@so.energy.
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
Looking for other energy options?
What do I need to do if I want to change my current provider?
Changing your energy provider has never been easier. It only takes minutes to run a quote on our site – and you could be up and running with your new supplier as quickly as within five working days.
What happens if my energy supplier goes bust?
It used to be very rare for an energy supplier to go out of business. However, due to the energy crisis in recent years, a number of energy companies have gone bust.
Ofgem, the energy market regulator, will manage any energy company collapses. Thanks to Ofgem’s safety net, even if your supplier goes out of business, your gas and/or electricity supply will never be cut off or interrupted.
In addition to guaranteeing continuity of supply, Ofgem works to move customers of a failed company to the best possible deal. Any existing debit/credit you have with your old supplier will be transferred to the new supplier. And if you want to switch to a different deal with another supplier, you should be able to do so without having to pay an early exit fee.
All UK energy suppliers are regulated by Ofgem.
Reviewed on 22 Dec 2025 by
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