• Alliant Energy average return on investment for 2023 was 4.72, a 8.7% decline from 2022.
• Alliant Energy average return on investment for 2022 was 5.17, a 2.58% decline from 2021.
• Alliant Energy average return on investment for 2021 was 5.04, a 7.35% increase from 2020.

Roi - return on investment can be defined as an indicator of how profitable a company is relative to its assets invested by shareholders and long-term bond holders. Calculated by dividing a company's operating earnings by its long-term debt and shareholders equity.