Why Switch Energy Supplier?
The UK energy market allows households to choose their gas and electricity supplier. While the energy price cap — set by Ofgem — limits what suppliers can charge per unit, tariff structures and standing charges still vary between providers. Switching can mean lower bills, better customer service, or access to greener energy tariffs.
Understanding the Energy Price Cap
Ofgem's energy price cap sets the maximum rate suppliers can charge per unit of energy and for the standing charge. The cap is reviewed quarterly. It does not cap your total bill — it caps the rate, so your actual bill depends on how much energy you use. The cap applies to customers on default (standard variable) tariffs.
When Is the Best Time to Switch?
You can switch energy supplier at any time, but it's worth considering:
- End of a fixed-rate deal – When your fixed tariff ends, you'll typically move onto a standard variable rate, which may be more expensive.
- After a price cap rise – If the Ofgem cap is set to increase, locking into a fixed deal beforehand could save money.
- When better deals emerge – Use comparison sites regularly to spot cheaper tariffs.
How to Switch: Step by Step
- Check your current deal – Review your most recent bill or log in to your account. Note your current tariff name, unit rate, and standing charge.
- Gather your usage details – Your annual energy usage in kWh is on your bill. This helps comparison tools give accurate quotes.
- Use a comparison website – Sites like MoneySupermarket, Uswitch, and Compare the Market are Ofgem-accredited and free to use.
- Choose a new tariff – Compare total annual costs, contract length, exit fees, and whether the tariff is fixed or variable.
- Complete the switch online – Your new supplier handles the switch. Your gas and electricity supply is never interrupted.
- Submit a final meter reading – On the day of the switch, take meter readings so your final bill from the old supplier is accurate.
Key Things to Check Before Switching
- Exit fees – If you're on a fixed tariff, check if there are early exit penalties before switching.
- Smart meter compatibility – Some tariffs require a smart meter. Check whether your meter type is compatible.
- Green energy credentials – If sustainability matters to you, look for tariffs backed by renewable energy certificates (REGOs).
- Direct debit amounts – Ensure the estimated monthly direct debit reflects your actual usage.
What About the Cooling-Off Period?
Once you've agreed to switch, you have a 14-day cooling-off period during which you can cancel without penalty. After that, the switch proceeds and typically completes within a few weeks.
If You're a Renter
If you're renting, you may need your landlord's permission to switch supplier — check your tenancy agreement. In some properties, the landlord controls the energy contract. However, if you pay the energy bills directly, you generally have the right to switch in the same way as a homeowner.
Getting Help With Energy Bills
If you're struggling with energy costs, several schemes may help:
- Warm Home Discount – A one-off reduction on electricity bills for eligible low-income households.
- Cold Weather Payment – Automatic payments to those on qualifying benefits during periods of cold weather.
- Energy company hardship funds – Many suppliers have funds for customers in financial difficulty. Contact your supplier directly.