At Alliant Energy, we work hard to manage our costs and provide you with the tools necessary to budget for future energy costs. Your energy bill is made up of several components. Some, like base rates and the basic service charge, are set by the Wisconsin Public Service Commission and may stay the same for several years.
Other components change annually, or even monthly, based upon the actual costs of providing you with these services. The weather is the biggest factor in how your bill may fluctuate from month to month.
Information about our biennial rate filing for 2026 and 2027
