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Illinois solar farm blends clean energy with agriculture for record success

A groundbreaking solar farm proves clean energy can thrive alongside agriculture. See how Illinois is leading the way with dual-purpose solar projects.

The image shows an aerial view of a large solar farm in the middle of a field, surrounded by trees,...
The image shows an aerial view of a large solar farm in the middle of a field, surrounded by trees, grass, plants, and water. On the ground, there are solar panels, and a train can be seen travelling along the railway track. This image is representative of the renewable energy industry, which is known for its high efficiency and cost-effective solutions.

Illinois solar farm blends clean energy with agriculture for record success

A major solar project in Pontiac, Illinois, has become a model for combining clean energy with farming. The Walldog Solar installation now powers thousands of homes while supporting local agriculture. Its success has drawn attention from the state’s renewable energy programme. The Walldog Solar project began in 2019 with approval for a 2 MW capacity. By 2021, plans expanded it to 5 MW, increasing its energy output. Construction wrapped up in 2024, led by union workers from IBEW Local 601, PowerCircle Construction, and Pepper Construction.

The site uses an agrivoltaic design, blending solar panels with farming. In its first year, the land provided forage for 10 yearling lambs. Subscribers also saved an estimated $107,000 on energy bills.

Illinois Shines, the state’s solar incentive programme, has highlighted Walldog as a case study. Projects like this can earn extra points in evaluations if they include agrivoltaics or pollinator-friendly features. To qualify, developers must submit a detailed plan and provide ongoing evidence during the renewable energy credit contract.

So far, Illinois Shines has supported over 3.6 GW of solar capacity across the state. More than 2 GW comes from community solar projects, with 672.41 MW using agrivoltaics. The programme now serves around 420,000 homeowners, businesses, and solar subscribers. The Walldog Solar installation is expected to generate over 10,477 MWh of electricity annually. Its dual-purpose design shows how solar farms can boost both energy production and local farming. The project’s success may encourage more agrivoltaic developments in Illinois.

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