Switch energy supplier
You’ll probably save money on your gas and electricity bills by switching to a new supplier.
Before you decide to switch
You should start by:
- checking which type of meter you have
- finding out if your contract has an ‘exit fee’ for leaving early - it’s usually on your bill
- looking at your current suppliers tariffs
If you have a smart meter
Before you decide to switch, it’s a good idea to contact your new supplier to check if your smart meter will still work the same. For example, with some suppliers you might need to send meter readings yourself.
If you use your smart meter in ‘prepayment mode’, you’ll usually need to top up with your new supplier once you’ve switched. Your old supplier will refund you any remaining credit.
Contact your new supplier if you have questions about switching with a smart meter.
Choosing the right tariff
It’s worth thinking about the type of tariff you need before you switch - for example, you might want:
- a flexible tariff that you can get out of at any time
- an environmentally-friendly tariff
- the cheapest tariff available
You should also check whether you need a specific tariff for the type of electricity meter you have - for example, if you have a prepayment meter or an ‘Economy 7’ meter.
If you’ve applied for the Warm Home Discount but not yet got it, you'll have to apply again if you switch supplier - check if your new supplier has different rules about who gets it.
Find out more about the different types of tariffs available.
How to switch supplier or tariff
Follow these steps to switch:
- Compare tariffs from different suppliers
- Once you’ve found one, call the supplier - they’ll set up the switch and tell your old supplier. Alternatively, you can switch online.
- Take a meter reading on the day of the transfer to give to your new supplier - this means they won’t charge you for energy used before the switch.
- Pay your old supplier’s final bill or get a refund if you’re in credit.
Once the switch has started, you’ll also need to give the new supplier your energy meter reference numbers, known as ‘MPRN’ or ‘MPAN’ numbers. This will make sure they switch your energy supply and not someone else's. You can find these numbers on your energy bill.
If your old supplier owes you money
They have to pay back any credit they owe you within 10 working days of sending your final bill. If they don’t, they’ll owe you an extra £30 in compensation.
You should complain to your energy supplier if they haven’t paid you what they owe.