We estimate your usage based on the information you give us when you join, like how much energy you used with your previous supplier. And we sometimes ask a few questions about your home to help us give an accurate estimate.
If you choose a fixed contract and pay by Direct Debit, we split the total estimated annual cost across 12 payments.
This means you'll build up a credit during the warmer months, when you're not using as much energy. This credit helps to pay for the extra energy you use during colder months.
We'll review your Direct Debit payments twice a year to make sure you're paying the right amount.