so Renewable: our Energy Tariffs

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So Fixed

All our fixed-rate tariffs come with 100% renewable electricity. Unit rates and standing charges stay the same for the length of your 12 or 24 month contract. Meaning built in protection from price hikes.

Get Fixed Tariff

So Green Tracker

100% renewable electricity. Rates and standing charges update every 3 months, and are designed to stay £50 below Ofgem's price cap (£25 per fuel). You need a smart meter to get this tariff.

Get Green Tracker

So EV

Our 100% renewable electricity EV tariff works with any EV and charger. It offers an overnight charging rate of 6.5p per kWh. You need a smart meter to get this tariff.

Get So EV

So Unique

Our 100% renewable electricity smart tariff analyses your smart meter data and gives you personalised peak and off-peak rates. You could save up to £200¹ a year vs So Flex.

Join The Waiting List

So Flex

This is our only non-green tariff. It's a standard variable tariff, which means your unit rates and standing charges change every 3 months, in line with Ofgem’s price cap.

Get So Flex

Fixed vs Variable

Understanding the difference between our tariffs
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Fixed Tariff

Unit rates and standing charges stay the same for the length of your contract. They aren't affected by Ofgem price cap changes.

Choose Fixed Tariff

Variable and Tracker tariffs

Unit rates and standing charges can change every 3 months, in line with the Ofgem price cap.

Choose Variable Tariff

Why choose a fixed tariff?

  • Savings: Our fixed-rate tariffs are always below Ofgem's price cap.
  • Price stability: Your rates stay the same for the length of your 12 or 24 month contract.
  • Protection: You're shielded from Ofgem's price cap rises.
  • Budgeting: Easier to plan and manage monthly bills.
  • Peace of mind: No surprises from market prices going up and down.

Why choose a variable tariff?

  • Flexibility: No exit fees, so you can switch any time.
  • Potential savings: If the price cap drops, you could benefit from falling rates.
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Why choose a Green Tracker tariff?

  • 100% renewable electricity: Sustainable energy for eco-conscious customers
  • Potential savings: You can benefit if market prices fall.
  • Save vs price cap: We've designed the Green tracker to stay £50 below the price cap (£25 per fuel).

what's the best tariff for me?

That depends on what's most important to you.

If you want price certainty, a fixed tariff offers stability.

For flexibility and the chance to benefit when prices fall, a variable tariff may suit you better.

If sustainability matters most, a fixed, or green tracker tariff lets you power your home while supporting clean energy.
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Check out our Which energy tariff is right for me blog for more help deciding what's best for you.

Read our Blog

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We take pride in what we do, and more importantly, we're keeping our customers happy.
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let's make switching easier

The smooth way to switch with So Energy

Start Your Switch

Get a quote, choose your tariff and receive your Welcome Pack with everything you need.

We’ll Contact Your Supplier

You don't need to do anything. We'll let you know when to submit your first meter read.

You're on supply

After 5 working days, you'll officially be a So Energy customer.

sit back and relax

We'll do your energy. You do you. Our UK-based support team are here when you need us.
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Frequently Asked Questions

Can I negotiate a deal with my energy supplier?

Are there any fees or penalties for switching tariffs?

How often should I review and compare energy tariffs?

Which is better, a variable or fixed tariff?

What Happens When My Energy Tariff Ends?

Does So Energy provide off peak times?

What happens if i don't renew my energy tariff?

Can i keep my energy tariff if i move house?

Is it worth getting a fixed rate energy tariff?

How long should i fix my energy tariff for?

Can my energy supplier change my fixed tariff?

Footnote

1. The £200 saving claim is based on over 200 trial samples modelled against our So Flex Standard Variable Rate on 29 September 2025. Your actual savings will depend on how much energy you shift, and whether you shift to Off-peak or Super Off-peak times.
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