Alliant Energy Corporation has announced U.S. generally accepted accounting principles (GAAP) consolidated unaudited earnings per share (EPS) of $3.14 for 2025, compared to $2.69 for 2024. Ongoing EPS for 2025 was $3.22, compared to $3.04 for 2024.

Alliant Energy affirmed its consolidated ongoing EPS guidance for 2026 of $3.36 - $3.46, continuing its over a decade strong track record of compound annual earnings growth of more than six percent.

“In 2025, we delivered another solid year of financial and operational results. We’re executing well while investing to meet growing customer demand,” said Lisa Barton, Alliant Energy President and CEO. “We have renegotiated an electric service agreement with QTS based on a new project location and our investment plan reinforces our flexibility and balanced generation portfolio as we continue to execute on our customer and community-focused strategy.”

In 2025, the primary drivers of Alliant Energy’s results were higher EPS due to increased revenue requirements from authorized rate base increases, reflecting ongoing capital investments in generation and energy storage, non-GAAP adjustments in 2024, and estimated temperature impacts on retail electric and gas sales. These items were partially offset by higher other operation and maintenance expenses, driven by increased generation costs from planned maintenance activities and the addition of new energy resources, as well as higher development costs to support long-term growth. Higher depreciation and financing expenses related to capital investments and non-GAAP adjustments in 2025 also partially offset the higher earnings.