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  • Understanding your bill
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  • Understanding your bill

Understanding your bill

How does my bill work?

Here is a guide to the information you'll find on your Sainsbury's Energy bill, you can download a PDF copy to see exactly what your bill looks like, here (PDF).

Your address
Where we send your bills or statements, usually also the address where the energy is being used. Spot anything that's incorrect? Let us know as soon as possible.

Contact us
To ask a question or pay a bill you can contact us on 0800 077 3833*. Have your customer reference number handy.

Bill header
Our bill header clearly shows at a glance:


  1. If it's for gas, electricity or both.
  2. What you need to pay and by when.
  3. If we've used an actual meter reading or an estimated one.

Dates

  1. Date of the bill and period of energy usage it refers to.
  2. Name of your tariff and its end date.

Account summary

We've highlighted the key information here. More detail can be found on the back of your bill.

  1. What you paid last time and if there was any outstanding debt or credit.
  2. How much energy you've used since your last bill and the price, according to your tariff.
  3. Any discounts we need to add.

Message board

Information and offers we think you might be interested in. Keep an eye out to make sure you don't miss anything.

On the back of your bill:

Your energy charge breakdown

How we calculate your bill

How much energy you've used

We look at the last meter reading we used on your previous bill and compare it to the latest reading we have. We show the difference in kWh (kilowatt hours) which gives us the energy used over the number of days in this billing period.

An 'actual' meter reading is one that has been provided by either yourself or a meter reader during the bill calculation period.

An 'estimated' reading is used when we have not been provided with an actual read during the bill calculation period. We calculate estimated readings using previous consumption information, including the latest read, and taking into consideration the time of year.

Applying the prices

The table shows how much we charge per kWh depending on your tariff. Instead of a standing charge, we have 2 layers of pricing:


  1. The first (higher) rate is applied to a fixed daily number of kWh - to cover our fixed costs.

  2. The second (lower) rate is applied to the rest of the kWh used over those days.

This section also shows if any price changes have occurred during the billing period, and when they were applied to your account.

Applying discounts or premiums

If you have more than one discount or premium applied to your account, we detail this on your bill or statement.

Gas Conversion Formula

This is something we are obliged to show on every bill and statement.

All energy prices are quoted per kWh (kilowatt hour) which is equivalent to 1 unit of electricity. Your gas meter measures what you use in cubic metres and this is converted to kWh using this formula.

  1. Calorific value - the quality or level of energy present in the gas flowing through the pipes. This changes day by day, so we work out the average for this bill period which we then use in our formula.
  2. Volume correction - how we adjust the amount you've used to reflect the time of year.

Your consumption

Tracking your consumption is a good way to check how efficiently you are using your energy.

After being a customer for 12 months we compare your usage for this bill with the same period last year, and also show your total consumption over the previous 12 months and what you would spend over the next 12 months at the same rate of use.

Important information

All the information you need if there's an emergency or you want to talk about your energy supply or register a complaint.

*Your calls may be recorded and /or monitored for quality assurance and compliance purposes. Phone lines are open Monday to Friday between 8am and 8pm and on Saturdays from 8am to 6pm. We’re closed on Sundays and Bank holidays.


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