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Fayette County, Illinois: solar, wind, and storage projects and permits
Proposed projects, county offices, and the state rules for a solar, wind, or battery storage project in Fayette County, county seat Vandalia.
Check land in Fayette 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 Fayette County?
The MISO interconnection queue lists 9 proposed projects in Fayette County (6 solar, 1 wind, 2 battery storage), about 1,070 MW in all. 2 have a signed interconnection agreement.
What stands out in Fayette County
By capacity, solar leads in Fayette County with 803 MW across 6 projects, followed by battery storage (2 projects, 200 MW) and wind (1 project, 67 MW). The largest is queue number J3805, a 250 MW solar request in the MISO queue, in study (Phase 2), filed Mar 2024, with a target in-service date of Sep 2027. Of the 9, 7 are still in study and 2 have a signed agreement. All of them are in the MISO queue, which covers the Ameren Illinois side of the state. The requests were filed between Jun 2020 and Jul 2025. Target in-service dates for those not yet under construction span Sep 2023 to Dec 2029; 5 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the table: the queue number is the operator's ID for the request (MISO J-numbers, PJM AE/AF/AG-numbers); operators do not publish developer names in these files.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. 5 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.
| Queue number and connection | Type | MW | Stage | Requested | Target in-service iThe in-service date the developer gave the grid operator. Developers set and change it, many projects slip, and some are never built. |
|---|---|---|---|---|---|
| J1626MISO · Ameren Illinois · Ramsey East 138kV bus | Solar | 150 | Agreement signed | Jun 2020 | Aug 2024 date passed; status per the operator |
| J1714MISO · Ameren Illinois · Ramsey East 138kV Substation | Solar | 100 | Agreement signed | Jun 2020 | Sep 2023 date passed; status per the operator |
| J3805MISO · Ameren Illinois · Coffeen North-Ramsey East-4557 | Solar | 250 | In study (Phase 2) | Mar 2024 | Sep 2027 |
| J3687MISO · Ameren Illinois · 4OTEGO - 4KINMUNDY 138.0kV | Solar | 113 | In study (Phase 2) | Apr 2024 | Jul 2027 |
| J2195MISO · Ameren Illinois · Ramsey East 138 kV | Storage | 100 | In study (Phase 2) | Jan 2025 | Oct 2024 date passed; status per the operator |
| J2808MISO · Ameren Illinois · Ramsey East 138 sub (co-located with Dressor and Switchgrass) | Solar | 100 | In study (Phase 2) | Sep 2022 | Sep 2026 date passed; status per the operator |
| J2794MISO · Ameren Illinois · A Tap on Kinmundy-Otego 138kv line | Solar | 90 | In study (Phase 2) | Aug 2022 | Dec 2029 |
| J3976MISO · Ameren Illinois · 7COFFEN N - 7RAMSEY 345.0kV | Wind | 67 | In study (Phase 1) | Mar 2025 | Dec 2028 |
| S1104MISO · Ameren Illinois · Ramsey | Storage | 100 | In study | Jul 2025 | Jun 2026 date passed; status per the operator |
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 Fayette County require of a project?
Illinois law sets the ceiling: Fayette 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: The county held a public hearing on June 2, 2026, on a proposed amendment to its solar ordinance. (Fayette County hearing notice)
State siting standardsFarmland agreement (AIMA)Property taxes
Who to contact in Fayette 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 Vandalia. A drainage district, if the land is in one, must receive the developer's drainage plan.
Fayette County websiteSupervisor of assessmentsCounty engineer and highways
Solar for homes and businesses in Fayette 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 Fayette County: Illinois agency list.
Get the land report for a spot
Flood zone, wetlands, nearest power line, soils, and more for any point. Parcel acreage fills in automatically in Texas and 26 other states (not Illinois, which has no statewide parcel layer).