November 2025
As of January 1, 2026, the energy price cap in the UK will rise by 0.2%, increasing the average annual dual fuel bill from £1,755 to £1,758.

On January 1, 2026, the UK’s energy price cap will rise by 0.2% (£3). For customers on standard variable tariffs, this means the average yearly dual fuel bill will go up from £1,755 to £1,758. This rise, announced by Ofgem, is mainly caused by global wholesale market changes, and will cover the period of 1 January to 31 March 2026.
The energy price cap, created by Ofgem in 2019, limits the maximum amount that energy suppliers can charge per unit of gas and electricity, and pence per day (the standing charge) on standard variable tariffs.t aims to protect consumers from heavy charges, while supporting a fair energy market. Customers on fixed rate tariffs aren’t affected.
Prices are going up because of a few key factors:
As the change is small, we expect that most So Flex, So Flex Green, and So Green Tracker customers’ Direct Debits won’t be impacted. It's important to note that although the cap sets a limit on unit rates and standing charges, your bill still depends on how much energy you use.
We'll contact all customers whose Direct Debit payments need to change due to this update. This will depend on energy use and account balance. There’s nothing you need to do right now, we’ll be in touch if you’re affected.
If you'd like to avoid future price changes, you could consider switching to a fixed-rate tariff. Energy prices change in line with the wholesale market, but switching to a fixed-rate tariff offers you price certainty and security against market changes.
A fixed-rate tariff locks in your unit rates for a set period, usually 12 or 24 months, keeping your bills predictable over the length of the contract. If you're thinking about switching, head over to our tariff options to find the latest fixed-rate tariffs.
If you prefer a variable rate to a fixed, then our So Green Tracker could be the tariff for you. The rates and standing charges update every 3 months, but are designed to stay £50 below Ofgem's price cap (£25 per fuel). The rates are variable, but the term is fixed for 12 months. You need a smart meter to get this tariff.
Being more energy-efficient can help you deal with rising costs. Here are a few tips to try:
For more tips, check out our Energy Saving Tips.
We understand that rising energy costs can be challenging. We’re here to help if you’re struggling to pay your energy bills:
For government-backed support schemes, including Cold Weather Payments, visit http://GOV.UK .