Green Garden Solar Farm Approved in Split Vote; Battery Storage Component Rejected

Will County Planning and Zoning Commission Meeting | May 5, 2026

Article Summary: The Will County Planning and Zoning Commission recommended approval for a new 4.98-megawatt solar facility in Green Garden Township on May 5, 2026, but formally rejected a request for an on-site battery energy storage system following intense testimony regarding environmental safety and residential impact. While the solar arrays were approved in a 4-3 vote, the battery component failed significantly with a 2-5 vote amid fears of “thermal runaway” and watershed contamination.

Solar Farm Zoning Case Key Points:

• Project Scale: The USS Talamh Solar LLC project encompasses 45 acres of a 90-acre tract located at 8411 Stuenkel Road, involving approximately 17,225 solar panels.

• Split Decision: The Special Use Permit for the solar facility (S-26-009) passed 4-3, while the Battery Energy Storage System (S-26-016) was denied 2-5.

• Environmental Concerns: Residents provided expert testimony regarding high-corrosion soil (Frankfort silt loam) and potential leaching of zinc and cadmium into the Forked Creek and Hickory Creek watersheds.

• Variances Granted: Despite the battery denial, the commission approved four variances allowing for increased ground cover height (up to 36 inches) and reduced mowing frequency to support pollinator habitats.

JOLIET — The Will County Planning and Zoning Commission on Tuesday, May 5, 2026, navigated a contentious public hearing that pitted the state’s renewable energy mandates against the land-use priorities of Green Garden Township residents. At the conclusion of the three-hour meeting, the commission moved to recommend the approval of a 4.98-megawatt solar farm proposed by US Solar but took the rare step of denying the project’s associated battery storage units.

The project, designated as Case ZC-26-017, involves two parcels totaling 90 acres on the south side of West Stuenkel Road. Harry Marwil, a senior developer with US Solar, presented the plan as a “limited scale” community solar project intended to power roughly 1,500 homes. Marwil emphasized that the project would generate a significant tax windfall for Peotone School District 207-U, projecting an increase from the current $1,000 in annual tax revenue to over $33,000.

Community Opposition and Watershed Risks
The hearing saw a surge of opposition from local officials and residents. Green Garden Township Supervisor Dean Christophilos presented a formal letter of objection, stating the project violates the township’s comprehensive land-use map. “It’s not supposed to be next to an established residential subdivision,” Christophilos said, noting that the site touches the boundaries of nearly 100 existing and proposed homes. “We need to have the fortitude to vote it down and be prepared to deal with the consequences.”

Jeff Becker, chairman of the local watershed committee, argued the application was incomplete because it failed to properly identify wetlands on the 90-acre site. Becker noted that the property sits between the headwaters of Forked Creek, Hickory Creek, and Prairie Creek. “You’re going to get leaching from the zinc [on the pilings] into this whole area which is going to go by the stream system,” Becker warned.

Melissa Taviger, a resident with 30 years of experience in caisson engineering, challenged the structural integrity of the project. She noted that the Will-South Cook Soil and Water Conservation District (WSCSWCD) report identified the soil as having a “high” rating for steel corrosion. “The zinc and cadmium poisoning leaching into the field is far worse than just the corrosion of raw steel,” Taviger testified. “The water table is probably 10 to 12 feet underground. That’s a disaster.”

The Battery Storage Conflict
The most significant blow to the petitioner came during the discussion of the Battery Energy Storage System (BESS). Ryan Mioni, a director at US Solar, defended the lithium iron phosphate batteries as the “safest on the market,” explaining they would be housed in temperature-controlled, refrigerator-sized cabinets.

However, Commissioner John Kiefner pressed the applicants on the risks of “thermal runaway”—a chain-reaction fire within battery cells. When Mioni admitted that the safest course of action during such a fire is often to “allow that system to run away” and burn out, the commission expressed grave concerns for nearby residents.

“Knowing that I was living next to a battery energy storage system would cause me a little more concern,” Kiefner said, noting the unpredictability of local winds.

The commission ultimately split the requests. The Special Use Permit for the solar farm passed with Commissioners Kimberly Mitchell, John Kiefner, Lewis Navarat, and Chairman Hugh Stipan voting yes. The battery storage permit was defeated, with only Mitchell and Navarat voting in favor.