Who is my gas or electricity supplier?

Whether you’re moving into a new home or simply in the market for a better energy tariff, it’s important to know who supplies your energy. If you’re struggling to find out who your energy provider is, here’s how to track down the details and potentially save on your monthly bills.

Whether you’re moving into a new home or simply in the market for a better energy tariff, it’s important to know who supplies your energy. If you’re struggling to find out who your energy provider is, here’s how to track down the details and potentially save on your monthly bills.

Sofia Hutson
Utilities expert
minute read
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Last Updated 7 JUNE 2021

Who is my energy supplier? 

Your energy supplier is the company that provides your gas and/or electricity. You’ll have the same supplier for both if you have a dual fuel deal, or you might have different suppliers for each service.

You might not know who your energy supplier is – perhaps because you’ve just moved into a property. But it’s important to find out so you can make sure you’re on the best tariff (price and usage plan) for you. Also, it's important to know who to contact if there are any problems.

The easiest way to find out who supplies your energy is by looking at a recent gas or electricity bill. The supplier name, logo and contact details will be on it, along with the name of your current tariff. It should also show the provider’s cheapest available tariff. But if you haven’t got a bill, there are other ways to track down your supplier.

Who is my electricity supplier? 

You can find out who your electricity supplier is by contacting your distribution network operator (DNO). They’re not responsible for your energy bill, but they can help you find out who your energy supplier is.

You’ll need to contact the local distribution centre for your area:

North Scotland 
Scottish and Southern Electricity Networks: 
0800 048 3516

Central & Southern Scotland 
SP Energy Networks: 
0800 092 9290

North East England & Yorkshire 
Northern Powergrid: 
0800 011 3332

North West England
Electricity North West
0800 195 4141

Merseyside, Cheshire, North Wales and North Shropshire
SP Energy Networks
0800 001 5400

The Midlands, South Wales and South West England
Western Power Distribution
0800 6783 105

South East England, East of England and London
UK Power Networks
0800 029 4285

Southern England 
Scottish and Southern Electricity Networks:  
0800 048 3516

Northern Ireland 
Northern Ireland Electricity Networks: 
03457 643 643 

Republic of Ireland 
ESB Networks: 
00353 21 2386555

If you’re not sure whose area you fall under, you can find out using the Energy Networks Association postcode search tool.

If you have a power cut you should call 105 (a free phone number) or use the Power Cut 105 website. They’ll put you straight through to your local electricity network operator. It doesn’t matter who provides your electricity, anybody can call 105.

If there’s a serious risk of immediate emergency and you think a power line or substation is putting somebody in danger, you should also call the emergency services on 999.

Who is my gas supplier? 

If you’re wondering who supplies your gas, you can use the following service to find out:

  • Just type your postcode into the Find My Supplier website and it’ll show you who supplies your gas. It’ll also give you your gas Meter Point Reference Number (MPRN). This tells your energy supplier where your meter is located.
  • If you don’t have internet access, you can call 0870 608 1524 – the meter helpline number. The number is available nationwide, and calls are charged at 7p per minute.

I’ve just moved house. How do I find my gas or electricity supplier?

Ask your estate agent, or the previous owner, for details of who the supplier is. If you’re renting, the letting agency or landlord will know.

If the previous occupant has told the energy supplier they’re leaving, you should also receive a notification letter when you move in. It’ll usually be addressed ‘To the Occupier’.

Once you’ve moved in, contact the current supplier to let them know you’re now living there. You should also read the meter and provide them with the readings on that first day. You’re responsible for the gas and electricity bills as soon as you take responsibility for the property, even if you don’t move in on that day.

You should also pay your old supplier’s final bill once you get it.

Why do I need to know who supplies my gas and electricity? 

It’s important to know who your energy supplier is, as you need to be aware of who to pay for your energy and the tariff you’re on. This way, you can find out if you’re overpaying for your energy and potentially find a better deal with a new provider.

See if you’re paying more for your energy than your neighbours by using our Neighbourhood Bills Calculator.

It’s also good to know who you should contact if something goes wrong with your energy supply.

If you need to make a complaint, you should first contact your energy supplier directly. By law, they have up to eight weeks to come to a decision about the complaint with you. If you’re not happy with the supplier’s response, you can then contact the Energy Ombudsman.

Citizens Advice is available for help and support at any point during your complaint process. You can contact their consumer helpline on 0808 223 1133.

How to find which energy plan you're on

If you don’t know which energy tariff you’re on, the easiest way to check is to look at your energy bill. You should find all of your supply details there, including the name of your current tariff. If you’re still unsure, or can’t find it, just give your supplier a call and they’ll be able to tell you.

Where can I compare energy tariffs?

Right here at Compare the Market. Our simple comparison service will provide you with a list of energy tariffs, so you can choose a tariff to suit you in a matter of minutes.

Frequently asked questions

What if I want to switch energy supplier?

Once you’ve found out who provides your energy and which tariff you’re on, there’s no reason why you can’t switch to what could be a better plan with another supplier.
Before getting a quote, ask your current provider for the average energy consumption for the property. If you can’t get hold of this, you can still get a quote via us, but we’ll estimate your energy usage.

Also, if you’ve just moved in, the previous owner – or landlord if you’re renting – should’ve given you an Energy Performance Certificate (EPC). This contains information on the property’s energy costs, as well as estimated savings that could be made by improving energy efficiency.

Thanks to the Energy Switch Guarantee, switching energy suppliers should be hassle-free, with no disruption to your energy supply. The Energy Switch Guarantee, guarantees:

  • A reliable switchover in 21 days. You’ll be able to continue using your existing energy supplier right up until the switch, so you won’t be without gas or electricity at any point.
  • A cooling-off period of 14 days in case you change your mind.
  • A refund of any credit from your old energy bill within 14 days of your final bill.

What information do you need to switch energy supplier?

You should find all the information you need to switch energy supplier on your most recent bill. If you can’t find one, they should be safely stored on your online account. If, for some reason, you still don’t have any luck, you can still compare energy quotes using estimates of your usage, but the prices will be just that - estimates. If you do have your bill, you’ll need to find on it the name of your current supplier, along with the specific tariff you’re on, as well as how much energy you use.

How do I switch energy supplier?

The first thing to do is read up about different tariffs to see how they could benefit you.

It might be that you prioritise customer satisfaction scores over cheaper prices. Or perhaps green energy tariffs and fixed deals with no exit fees are most important to you.

Once you know what you’re looking for, you can find your new supplier. Start by entering a few details into our energy comparison tool including your postcode and current energy usage (which can be found on an existing bill). We’ll then do the legwork to find you quotes from each of our suppliers.

Once you’ve found a quote you’re happy with, you’ll just need to enter a few more details, including your full address and basic bank details, before confirming your switch with your new supplier.

Then your new supplier should tell your existing one that you’ve agreed to switch, taking the hassle of the switchover off your hands. After a cooling-off period, you’ll then be automatically switched to your new provider.

How long does switching energy supplier take?

With Compare the Market, you can get quotes for a new energy supplier.

Once you’ve selected and confirmed your new provider, your details will be processed. Your new supplier will then be in touch to confirm your switchover date. This typically takes around 17 days, but it can take up to 21 days. You should expect to be fully set up with your new energy provider in three weeks or less.

Who is my gas or electricity distribution network operator (DNO)?

DNOs are responsible for the cables and pipes that bring energy to your home. They’re not your energy supplier, but they can help you find out who is.

You might also need to contact your DNO if you need a new gas or electricity mains connection or want to alter one. You can find their details by using the Energy Networks Association postcode search tool.