A Standard Variable Tariff (SVT) is our most flexible tariff.
Your rates move with the energy market, changing in line with the Ofgem price cap¹ every three months. So if energy prices fall, yours do too.
There's no contract, no exit fees, and we'll always let you know what's changing and when, with plenty of notice.

| Feature | So Flex (Variable Tariff) | Fixed Tariff | Green Tracker Tariff |
|---|---|---|---|
| Rate stability (per kWh) | Rate changes in line with the price cap every 3 months | Rate doesn't change for the length of your contract | Rate changes with the price cap every 3 months, but stays £50 lower |
| Early exit fees (if you leave the contract before it ends) | No contract, so no early exit fees | Early exit fees of £75 per fuel for 12-month contract, and £95 per fuel for 18 and 24-month contracts | Early exit fees of £50 per fuel |
| Contract length | No contract | Choose from 12, 18 or 24-month contracts | 12-month contract |
| Sustainability | A mix of renewable and non-renewable electricity | 100% renewable electricity | 100% renewable electricity |
| Who it suits best | Customers who don't want a contract, and prefer flexibility | Customers who want price stability, protection from market price rises and renewable electricity | Customers who want renewable electricity and flexible rates that are guaranteed to stay £50 below the price cap |

Prices on a standard variable tariff can change every three months, in line with the Ofgem price cap. We'll always let you know 30 days before any changes happen to your rates.
No. You can switch to a new tariff or a different supplier at any time without giving notice. There are no early exit fees on a standard variable tariff.
Yes. If your rates are going up, we'll let you know in advance. This is usually at least 30 days so you have time to review your options and switch to a different tariff.
Yes, you can switch to a fixed tariff at any time. There are no early exit fees for moving from a variable tariff to a fixed one, just choose the tariff that works best for you. We'll let you know every 3 months what your best options are. You can switch by logging into your online account or we can help you find the right deal quickly via live chat or on the phone.
No, you don't need a smart meter to be on So Flex, but we'd recommend one.
A smart meter sends your readings to us automatically, so your bills are always based on what you actually use, not an estimate. Without one, we'll need you to send us regular meter readings to keep your bills accurate.
You'll also be able to see your real time energy use through your online account and In-Home Display. This makes it easier to spot where you're using the most energy and find ways to cut back. And if you ever want to move to a smart tariff in the future, you'll already be set up.
If you'd like one fitted, just get in touch and we'll sort it for you.