What Happens If Your Energy Supplier Goes Bust
It sounds like the sort of thing that should leave you sitting in the dark. It doesn’t. UK energy supplier collapse is actually one of the more consumer friendly failures a regulated market can have, because Ofgem has a set process that kicks in automatically, without you lifting a finger.
You don’t need to panic switch, call anyone at midnight, or worry about your boiler cutting out. The safety net exists precisely so you never notice the gap.
Will You Lose Your Gas or Electricity Supply?
No. Under Ofgem’s rules, there’s no such thing as a household losing supply because its energy company folded. Your gas and electricity keep flowing through exactly the same pipes and wires as before, since those are run by the local network operator, not your supplier.
What actually happens is a change of billing company, not a change of service. Ofgem calls this the Supplier of Last Resort process, SoLR for short, and it’s designed to be invisible to you while it’s happening.
Has an Energy Supplier Collapse Like This Happened Before?
Yes, and fairly recently. Around 30 energy suppliers exited the UK market between 2021 and 2022, when wholesale gas prices spiked far faster than fixed tariffs could cover. Ofgem’s SoLR process handled every one of those transfers, moving millions of household accounts without a single household losing supply.
That period is also why the rules got tougher. Ofgem now requires suppliers to hold more capital and stress test their finances, specifically so an energy supplier collapse is rarer and, when it does happen, cheaper to sort out. Our guide to the big six energy providers covers who’s dominated the market through that period and since.
The Supplier of Last Resort Process, Step by Step
| Step | What happens |
|---|---|
| 1. Supplier fails | Ofgem is notified and confirms the firm can no longer trade. |
| 2. New supplier appointed | Ofgem selects a Supplier of Last Resort, chosen for its ability to take on the extra customers without disruption. |
| 3. Automatic transfer | Your account moves over. You don’t need to sign anything or contact anyone to keep your supply. |
| 4. Deemed contract begins | You’re placed on a temporary emergency rate while the transfer settles. |
| 5. Free to switch | Once your account is confirmed with the new supplier, you can compare deals and move again with no exit fee. |
Energy supplier collapse process checked against Ofgem’s Supplier of Last Resort guidance, August 2026.
What Happens to Credit You’d Built Up?
Any credit balance sitting on your account when your old supplier collapsed should be honoured by the new one under Ofgem’s rules. It can take a few weeks to show up correctly on your new account, which is more admin delay than genuine risk, but it’s worth keeping your final statement or a screenshot of your old balance just in case you need to query it.
The rate you land on straight after a supplier of last resort transfer, the deemed contract, usually isn’t the cheapest on the market. It exists to keep you covered during the handover, not to be a long term deal. Once your account has settled with the new supplier, typically within a few weeks, treat it the same as any out of contract rate and compare what else is out there.
None of this means an energy supplier collapse is something to actively worry about day to day. For most households it’s a piece of background regulation you’ll never personally need, right up until the one week you do, and then it’s already been handled before you’ve finished reading the email telling you about it.
What Should You Do If It Happens to You
Key takeaways
- Your supply won’t be interrupted. There’s no need to panic or contact anyone urgently.
- Keep a note of your account balance and last meter reading with your old supplier, just in case.
- Wait for official confirmation from Ofgem or your new supplier before doing anything, rather than acting on rumours.
- Once you’re settled with the new supplier, compare deals. The deemed rate you’re moved to isn’t designed to be permanent.
- Ignore anyone who calls or emails claiming urgent action is needed to “save” your supply. Genuine SoLR communication comes from Ofgem or your confirmed new supplier.
Ofgem also publishes a regular financial resilience report tracking how well capitalised suppliers are across the market, part of the tighter rules brought in after the wave of energy supplier collapse cases in past winters. It’s a sign the regulator is watching, not a warning about any specific supplier.
If you’re unhappy with how a transfer was handled, or a genuine dispute drags on, our guide to the energy ombudsman complaints process covers the free route to a resolution. And if you’re simply wondering whether your current deal is still competitive, whether or not an energy supplier collapse is involved, our explainer on how the energy price cap works is a good place to check your starting point. Ofgem’s own supplier of last resort guidance has the full detail if you want it straight from the regulator.
Frequently Asked Questions About Energy Supplier Collapse
A quick round up of the questions that come up most when people first hear the phrase energy supplier collapse.
- Will my gas or electricity be cut off if my supplier goes bust?
- No. Ofgem’s Supplier of Last Resort process moves your account to a new supplier automatically, and your actual supply is never interrupted.
- Do I need to do anything if my energy supplier collapses?
- Usually not straight away. Wait for official confirmation of your new supplier before taking any action, and keep a note of your account balance in the meantime.
- Will I lose money I’d already paid into my account?
- Any credit balance should be honoured by the new supplier under Ofgem’s rules, though it can take a few weeks to appear correctly on your new account.
- Am I locked into the new supplier’s rate?
- No. The deemed contract you’re placed on is temporary. Once your account has settled, you’re free to switch to a cheaper deal with no exit fee.
- How do I know if a message about a supplier collapse is genuine?
- Official updates come from Ofgem or your confirmed new supplier. Be wary of unsolicited calls or emails asking for payment details to “protect” your account.
