Iowa Utilities Urged: Go 100% Renewable by 2035!

Iowa's electric utilities are being strongly encouraged to achieve a 100% renewable energy generation mix by 2035. This ambitious goal is part of a broader effort to combat climate change and ensure other sectors can reach net-zero emissions by 2050. The Iowa Environmental Council's report highlights a concerning trend: for the first time in years, coal's share in the state's electricity generation increased in 2025, a reversal from previous progress.

Both MidAmerican Energy and Alliant Energy saw a greater reliance on coal in their generation mix in 2025 compared to 2024. While wind energy remains a dominant source, its share decreased for both utilities in 2025. MidAmerican's coal generation rose from 21% to 27%, and Alliant's increased from 12% to 20%. Utilities argue that the transition to renewables presents extraordinary complexities, involving cost, reliability, and operational realities.

Despite the recent increase in coal use, the long-term trend shows wind and solar power becoming more affordable and reliable. The environmental council emphasizes that coal plants are significant sources of air pollution, contributing to health issues like asthma and premature death, and impose financial risks through increased healthcare and insurance costs. Utilities, however, maintain their commitment to balancing environmental goals with the need for reliable and affordable energy for customers.