Duane Arnold Solar Project
The Duane Arnold Solar Project is an estimated 200-MW solar project located in Linn County.
Iowa solar projects
Our solar projects are a reflection of our commitment to clean, renewable energy in the state of Iowa.
We are adding 400 megawatts of solar generation.
Alliant Energy is working tirelessly to achieve net-zero greenhouse gas emissions from its utility operations by 2050. This includes renewable generation (wind, solar) and retiring coal-fired facilities. We’re creating a clean energy future – for decades to come.
As part of our Clean Energy Blueprint, we plan to add 400 megawatts (MW) of solar generation in Iowa by the end of 2024. Alliant Energy already owns and operates more than 1,300 MW of wind generation in Iowa.
We are working together with the agriculture industry, labor groups and landowners to ensure everyone understands the benefits of solar. Our partnership with environmental stakeholders will help minimize the impacts on water, land and wildlife.
As we work to construct more solar projects around the state, we invite the public, elected officials and local community members to engage with us in meaningful dialogues to ensure the results benefit all of Iowa’s communities.
Click the pins to learn more about each project.
Utility-scale solar projects
Wever Solar Project
The Wever Solar Project is an estimated 150-MW solar project located in Lee County. The project has the ability to add a 75-MW battery energy storage system in the future.
Creston Solar Project
The Creston Solar Project is an estimated 50-MW solar project located in Union County. The project has the ability to add a 25-MW battery energy storage system in the future.
Additional solar projects in Iowa
Dubuque Solar Project
This 4.8-MW solar project in Dubuque County is comprised of a 3.9-MW project west of the city and a smaller 900-kilowatt system downtown along the Mississippi River.
Indian Creek Nature Center
We built a 420-panel array at the Indian Creek Nature Center’s Amazing Space to help it reach net zero status in 2018. Just outside of Cedar Rapids, the center became the first commercial building in Iowa to pursue Net Zero Energy certification. A real-time dashboard is available to track production.
Marshalltown Solar
This 2.5-MW solar project provides clean energy to support our Marshalltown Generation Station, a highly efficient natural gas plant completed in 2017. The solar garden’s power offsets local electricity demand and improves our sustainability footprint in Marshalltown.