Waldinger – Alliant Deere Run Solar

Located in Cedar Rapids, IA

Alliant Energy aimed to expand renewable energy offerings for its customers in Cedar Rapids, Iowa, by developing a solar energy site with the added complexity of integrating utility-scale battery storage. The project needed to deliver long-term value through clean energy generation while managing peak demand and ensuring system reliability. The challenge was to design a system that could efficiently balance solar production with energy storage, all while coordinating with multiple partners and utility infrastructure.

Shive-Hattery collaborated with The Waldinger Corporation, Ideal Energy, and other design-build partners to provide civil and electrical engineering for the Deere Run Solar project. Our team supported the development of a 4.5 MW (AC) / 5.599 MW (DC) ground-mounted solar array featuring 10,268 bifacial modules. We also contributed to the design of a 5.0 MW / 10.0 MWh Battery Energy Storage System (BESS) adjacent to the utility substation. The BESS was engineered to absorb excess solar power during peak production and release it during high-demand periods, improving grid stability and energy efficiency.

Completed in 2024, the Deere Run Solar project enables Alliant Energy customers to purchase solar power blocks and receive bill credits for 20 years. The integration of battery storage enhances the reliability and flexibility of the renewable energy system. Shive-Hattery’s responsive and collaborative approach helped deliver a forward-thinking energy solution that supports sustainability goals, reduces reliance on fossil fuels, and provides long-term value to the community.