Alliant Energy Send Out Notice Of Proposed Electric Rate Increase

Alliant Energy sent out the following notice to area customers this week, proposing a rate increase to come in late 2024:

Alliant Energy’s Iowa utility, Interstate Power and Light Company, is submitting a proposal to the Iowa Utilities Board on October 12, 2023 to adjust customers’ electric rates in late 2024.

The drivers of our proposed electric rate increase include our investments to build a more reliable, sustainable and resilient energy future to benefit our customers and the communities we serve in Iowa. We are investing to diversify our generation resources, expand economic opportunities, replace and upgrade aging infrastructure and create a healthier environment that benefits all Iowans. By building cost-effective projects and modernizing the energy grid, we’ll be improving security, reliability and resilience. At the same time, we are continuing to meet all customers’ energy needs in light of rising costs that have impacted all industries.

The overall impact on customer bills will vary, depending on actual energy used and final rates approved by the Iowa Utilities Board. The Iowa Utilities Board will review our request within 10 months and establish final rates, which may be different than the rates we’re proposing. We’re requesting the rates become effective in October 2024. However, the Iowa Utilities Board will determine if and when any changes in final rates become effective.

The rates under review by the Iowa Utilities Board are called base rates and only account for a portion of your bill. Base rates include capital costs, operation and maintenance costs, a return on investment, and taxes. The estimated average monthly bill shown in the chart on the next page includes all costs included for a typical customer’s bill, including estimated rate case expense. The estimated average monthly bill is based on projections and may be impacted by other factors, such as fuel costs and weather. The new rates are proposed to be phased in over approximately two years with increases in October 2024 and October 2025. If the Iowa  Utilities Board decides that the proposed rates will be implemented in a different time period, the increase may vary from what is shown in the chart.












Customers have the right to file written comments and objections with the Iowa Utilities Board that include any facts that would assist the Board in reviewing the proposed rate adjustment. Customers also have the right to request a public hearing regarding the proposed new rates. Comments, objections, or hearing requests can be submitted to the Iowa Utilities Board online at, by email at or by mail at Iowa Utilities Board, 1375 E. Court Avenue, Des Moines, IA 50319-0069. All comments are a matter of public record and available to the Office of Consumer Advocate, who represents the public interest in rate cases before the Iowa Utilities Board.

As part of this request, the Iowa Utilities Board will host a series of customer comment meetings. The customer comment meetings are open to the public and are scheduled for the dates below. Details about participating or accessing information presented at the customer comment meetings will be available on the Iowa Utilities Board website,

Cedar Rapids: Monday, November 6 (6:30 p.m.) at The Hotel at Kirkwood Center, Main Ballroom, 7725 Kirkwood Blvd SW, Cedar Rapids, IA 52404.

Clear Lake: Tuesday, November 7 (6 p.m.) at The Surf Ballroom, 460 North Shore Dr., Clear Lake, IA 50428.

Creston: Wednesday, November 8 (6 p.m.) at Southwestern Community College, Performing Arts Center, 1501 W Townline St., Creston, IA 50801.

Virtual: Thursday, November 9 (6 p.m.) at

To learn more about Alliant Energy’s rates, visit A free, written explanation of  current and proposed rates can be provided upon request. If you have any questions, you may call Alliant Energy at 1-800-ALLIANT (800-255-4268).

Written by: Leah Jones

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