A handy guide to your energy bill
Find out what the information on your energy bill means. If you need a large print or braille version, please let us know. You can also join the Priority Services Register for additional support.
Understanding your energy bill
We designed our bills to be clear and easy to understand after listening to feedback from our customers.
In this short video, we’ll guide you through your bill’s main sections. We’ll also show you how simple it is to find the important information you need quickly and easily.
Page 1 – Your summary page
1. Useful information
The supply address is the address your bill relates to. Your rota block letter is linked to your postcode and used by National Grid to help communicate planned power cuts. The address we’ve sent the bill to is the one linked to your account, which may be different to your supply address.
2. Your account at a glance
Your total costs and any payments we’ve received since your last bill, and the period this bill covers.
3. Your payment due
How much you’ll need to pay and by when.
The quickest way to pay is in your online account
Or you can call our automated phone line on 0330 818 0004
If you need help paying your energy bills, there are a number of ways we can help you.
4. Information about your tariff and payment
This shows what tariff you’re on, any end date and exit fees, and how you pay. Based on your projected usage, we’ll show your estimated energy costs to help you plan ahead. Find out more about tariffs on our website.
Page 2 – Your account in detail
5. Your energy usage and costs
This shows exactly how much gas and/or electricity usage your bill covers, and if we’ve used actual or estimated meter readings. We also include a breakdown of any VAT.
If you’ve switched tariff (including variable tariffs) or your prices have changed over the bill period, we'll show your new prices separately so you can see which ones applied on different days.
How we calculate your gas cost
To work out your gas cost we convert the units you’ve used into kilowatt hours of energy, or kWh using the formula below:Usage (in kWh) = Units Consumed (Cubic Metres) × Volume Correction (for temperature & pressure) × Calorific Value (energy in each m3 of gas) ÷ 3.6 (convert from joules).
6. Your year-on-year comparison
If we’ve got enough of your energy usage history, we’ll show you whether you’re using more or less energy than you did in the same period last year.
If this isn't showing on your bill, you can still view your consumption values and compare it to previous bills in your online account or speak to our helpful advisors.
7. Your balance
This is your latest balance.
8. Hints, tips and other useful information
Useful information on our website on where your energy comes from, energy efficiency advice, and home safety tips.
Page 3 – Contact and payment information
9. Got any questions?
These pages on our website have the answers. You can also chat online with one of our friendly advisors. Emergency numbers are here too.
10. Supply details
These are your unique gas and electricity supply reference numbers and the networks that supply you. They help us identify the meters supplying your property and being charged to your account.
11. How to pay
This includes all details for how to pay your energy bill.