How Bulb calculates your payments

In the UK, the result of every gas and electricity meter reading for every property is shared with an independent regulator.

The regulator provides us with 2 approved pieces of information for each property:

  • EAC - the Estimated Annual Consumption of electricity
  • AQ - the Annual Quantity of gas used

We use these figures to calculate how much energy you’re likely to use within the year. Then we work out how much that’s likely to cost, based on the current price of our variable tariff.

We take your account balance, divide the estimated annual cost by 12, ending up with your monthly payment amount.

As our tariff is variable and reflects the true cost of energy, if wholesale prices go up we’ll suggest you increase your payments, and if they go down we’ll suggest you decrease them.

The best way to make sure you’re paying the right amount is by entering regular meter readings into your account. Find out:

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