Why do you some utility companies allow customers to pay an average fee each month?

Utility companies often allow customers to pay an average fee each month to help them manage their budgets more effectively. This billing method, known as budget billing or levelized billing, smooths out fluctuations in monthly utility costs caused by seasonal changes in usage. By providing a consistent payment amount, customers can avoid unexpected spikes in bills and plan their finances more easily. It also helps utility companies maintain a steady cash flow throughout the year.