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Sangamon County, Illinois: solar, wind, and storage projects and permits

Queue data downloaded October 7, 2026 · Rules checked October 17, 2026

Proposed projects, county offices, and the state rules for a solar, wind, or battery storage project in Sangamon County, county seat Springfield.

Check land in Sangamon CountyOpens the land report with the map on the county; click a spot for its flood, wetland, habitat, line-distance and parcel check.

What energy projects are proposed in Sangamon County?

The MISO interconnection queue lists 9 proposed projects in Sangamon County (3 solar, 2 solar plus storage, 3 battery storage, 1 gas), about 2,225 MW in all. 2 have a signed interconnection agreement.

What stands out in Sangamon County

By capacity, gas leads in Sangamon County with 1,040 MW across 1 project, followed by battery storage (3 projects, 500 MW) and solar (3 projects, 470 MW). The largest is queue number J955, a 1,040 MW gas request in the MISO queue, under construction, filed Mar 2018, with a target in-service date of Nov 2021. Of the 9, 7 are still in study, 1 has a signed agreement and 1 is under construction. All of them are in the MISO queue, which covers the Ameren Illinois side of the state. Ameren Transmission Company Of Illinois is the transmission owner named most often (3 of 9). The requests were filed between Mar 2018 and Nov 2025. Target in-service dates for those not yet under construction span Aug 2023 to May 2030; 3 of them have already passed, which means those schedules slipped.

A listing means a developer asked the grid operator to study connecting a project; many are never built, and the status column says where each one stands.

Reading the table: the queue number is the operator's ID for the request (MISO J-numbers, PJM AE/AF/AG-numbers); operators do not publish developer names in these files. Connection is the transmission owner and, where listed, the substation or line; "Other_" is the operator's own placeholder. In study (Phase 1/2) are MISO's definitive-planning study phases; "moved to TC1" means a PJM request was carried into Transition Cycle 1; "CIR Increase" is a request to add capacity rights to an existing project; "LRTP" names a MISO long-range transmission project. For PJM rows, MW is the figure in the megawatt column of PJM's public queue export; PJM also tracks maximum facility output and capacity rights separately, so a project's study documents can show a different number. 3 target in-service dates below have already passed while the request is still open: operators keep the developer's last reported date until the developer changes it, so a past date means the schedule slipped, not that the project was built.

Scroll the table sideways to see every column.

Sources: MISO generator interconnection queue and PJM interconnection queue, downloaded October 7, 2026; withdrawn and operating projects are left out, and the operators do not publish developer names. What the stages mean.

What can Sangamon County require of a project?

Illinois law sets the ceiling: Sangamon County must approve a commercial wind or solar project that meets the state standards, must finish its public hearing within 60 days, and may not ban them in agricultural or industrial zones (55 ILCS 5/5-12020); battery storage has had its own statewide standards since June 1, 2026 (55 ILCS 5/5-12024). Land inside a city or village falls under municipal zoning instead.

Recent local action: In June 2026 the Sangamon County Board voted 15–8 to reject the Whisper Walk solar project, a 20-acre solar farm proposed by Summit Ridge Energy in the 1300–1500 block of Lenhart Road, after the county Zoning Board of Appeals had approved it on May 21, 2026. (Illinois Times)

State siting standardsFarmland agreement (AIMA)Property taxes

Who to contact in Sangamon County

Assessment questions go to the supervisor of assessments, special use applications to the zoning office, and road use agreements to the county engineer; the county seat is Springfield. A drainage district, if the land is in one, must receive the developer's drainage plan.

Sangamon County websiteSupervisor of assessmentsZoning and planningCounty engineer and highways

Solar for homes and businesses in Sangamon County

Illinois net metering, the Illinois Shines incentive, and HOA rules are the same statewide; Ameren Illinois sets the application steps here: Illinois home and business solar rules · utility application links.

State and federal reviews

Illinois EPA stormwater coverage, IDNR's EcoCAT review, historic preservation review, and federal wildlife screening can apply to a site in Sangamon County: Illinois agency list.