Understanding your energy bill

We think an important part of gaining control over your energy usage is fully understanding your bill. We have the most detailed bills in the industry and are in regular consultation with consumer group Which? to make sure our bills are really simple to understand.

Below is an example of a First Utility energy bill for a dual fuel tariff paid by variable Direct Debit. When you pay by variable Direct Debit you are paying for all of the energy you use, in the same way that you pay your telephone bill.

Where you see a purple question mark you can hover your mouse over it or tap for more information.

Frequently Asked Questions

How do you estimate my electricity usage?

When estimating your electricity usage we base our calculations on two key factors:

1. The Estimated Annual Consumption (EAC)

The EAC is a calculation based on the electricity your property used over the last year and:

  • it is held in a centralised industry database
  • it is usually updated twice a year depending on how often your previous supplier submitted meter readings to the database
  • a typical yearly EAC for an UK average home is 3100 kilowatts per hour (kWh).

2. Seasonality change (Profile Coefficients)

Have you even thought about how much electricity you consume in June compared with December? We adjust your estimated electricity consumption due to changes in season as follows.

On average, a domestic customer uses 6.38% of their EAC in June and 10.76% in December. To estimate your consumption for June we:

  1. Take your EAC of 3100
  2. Apply the coefficients of 6.38% and
  3. Charge you for 210.54 kWh of usage.
How do you estimate my gas usage?

When estimating your electricity usage we base our calculations on two key factors:

1. Annualised Quantity (AQ)

  • AQ is held on a centralised industry database and is reviewed yearly
  • Variations in weather
  • A typical domestic AQ is 12,000, which means that a typical domestic customer will consume 12,000 kWh yearly.

2. Annualised Load Profile (ALP)

ALP is how the industry adjusts your estimated usage based on seasonality.

The average customer uses 3.17% of their ALP in June and 14.38% in December. To estimate your consumption for June we:

  1. Take your AQ of 12,000 kWh
  2. Apply the ALP of 3.17% and
  3. Charge you 427.95 kWh of usage.

Please note: there is one ALP per region for domestic customers that is used in the example above. There are eight ALPs for business customers.

My billing email refers to 'the industry' and 'industry data' what does this mean?

 'The industry' is a collection of third party companies that we appoint to look after meters and exchange data between suppliers. Every energy company uses these companies to exchange data when customers switch or have a meter changed or read. One of the key points that may delay us with creating your first bill when you switch to us is using these third parties to verify your opening meter reads. Information needs to be collected regarding your meter read history with previous suppliers and this occasionally takes longer than we would like. Each month we also need to verify your meter reads, if you are submitting them, before we can use them to calculate your bill. If you have a smart meter and your reads are sent to us automatically, we still have to have these verified.

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