Josie Taylor | November 4, 2021
Alliant Energy says it will invest $750 million in 400 megawatts of solar power generation and 75 megawatts of battery storage in eastern Iowa, making it the state’s largest solar project to date.
They will file a plan on Tuesday with the Iowa Utilities Board stating its plan for a 200-megawatt installation, part of which would be on the grounds of the Duane Arnold nuclear power plant. The plant in Palo, northwest of Cedar Rapids, is being decommissioned.
Alliant has committed to building 400-megawatts, which would be the state’s largest solar project, said Morgan Hawk, an Alliant spokesman. Once it’s complete, about half of Alliant’s energy would come from renewable sources, which already include 1,300 megawatts of wind energy, Kouba told the Register.
Iowa utilities are investing heavily in renewable energy. The state got nearly 60% of its energy from wind last year, according to the U.S. Energy Information Administration.
MidAmerican Energy, Iowa’s other large investor-owned utility, has invested mostly in wind, which provides about 80% of its power generation. The Des Moines-based company said this year it’s also investing in about 140 megawatts of solar generation.