I think there's a lot of confusion here. When you sign up with an energy company for a fixed price tariff, it works as an account. Your monthly payment is just what the energy company estimates is about 10% of your total annual charge will be. So you might pay £120 in Dec, and your usage might be £140, so your account will be £20 in debit. If your monthly usage runs well ahead of their estimate (and it always does in Nov/Dec/Jan) then they will up your monthly payment. Resist this, because in the summer, you will be overpaying and by the time your tariff ends, you'll have a significant credit balance. In other words, you are funding the energy company's operations.
It's important to understand that your monthly payment is only a payment on account and does not represent the energy units that you use. You can't have the heating on all day every day and expect it'll be covered by your monthly payment.
It's important to understand that your monthly payment is only a payment on account and does not represent the energy units that you use. You can't have the heating on all day every day and expect it'll be covered by your monthly payment.
