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Grundy 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 Grundy County, county seat Morris.
Check land in Grundy 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 Grundy County?
The PJM interconnection queue lists 9 proposed projects in Grundy County (4 solar, 2 solar plus storage, 2 battery storage, 1 gas), about 2,709 MW in all. 2 have a signed interconnection agreement.
What stands out in Grundy County
By capacity, gas leads in Grundy County with 1,263 MW across 1 project, followed by battery storage (2 projects, 680 MW) and solar (4 projects, 406 MW). The largest is queue number AD1-039, a 1,263 MW gas request in the PJM queue, under construction, filed Jul 2017, with a target in-service date of Feb 2025. Of the 9, 7 are still in study, 1 has a signed agreement and 1 is under construction. All of them are in the PJM queue, which covers the ComEd side of the state. The requests were filed between Jul 2017 and Mar 2023. Target in-service dates for those not yet under construction span Dec 2023 to Apr 2028; 7 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the table: the queue number is the operator's ID for the request (MISO J-numbers, PJM AE/AF/AG-numbers); operators do not publish developer names in these files.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. 7 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. |
|---|---|---|---|---|---|
| AD1-039PJM · ComEd · Kendall-Tazewell & Dresden-Mole Creek | Gas | 1,263 | Under construction | Jul 2017 | Feb 2025 |
| AD2-066PJM · ComEd · Mazon-Crescent Ridge 138 kV | Solar | 116 | Agreement signed | Mar 2018 | Aug 2026 date passed; status per the operator |
| AH2-377PJM · ComEd · Pontiac Midpoint – Dresden 345 kV | Storage | 450 | In study | Mar 2022 | Oct 2024 date passed; status per the operator |
| AI1-172PJM · ComEd · Katydid Road - Goodings Grove 345 kV | Solar + storage | 250 | In study | Sep 2022 | Apr 2028 |
| AH2-421PJM · ComEd · Dresden 138kV | Storage | 230 | In study | Mar 2022 | Dec 2025 date passed; status per the operator |
| AH2-294PJM · ComEd · Mazon Blue - Lasalle 138 kV | Solar | 150 | In study | Mar 2022 | Jun 2026 date passed; status per the operator |
| AI2-454PJM · ComEd · Mazon-Oglesby 138kV (CIR Increase) | Solar | 116 | In study | Mar 2023 | Dec 2025 date passed; status per the operator |
| AG2-524PJM · ComEd · LaSalle Station - Mazon 138 kV | Solar + storage | 110 | In study | Mar 2021 | Dec 2023 date passed; status per the operator |
| AI2-013PJM · ComEd · Grundy - Goose Lake 138 kV | Solar | 24 | In study | Nov 2022 | May 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 Grundy County require of a project?
Illinois law sets the ceiling: Grundy 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 March 2026 an Illinois appellate court ruled against Grundy County in a dispute over solar permits, holding that a county must approve a solar permit that meets the state standards. (Arent Fox Schiff summary of the ruling)
State siting standardsFarmland agreement (AIMA)Property taxes
Who to contact in Grundy 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 Morris. A drainage district, if the land is in one, must receive the developer's drainage plan.
Grundy County websiteCounty engineer and highways
Solar for homes and businesses in Grundy County
Illinois net metering, the Illinois Shines incentive, and HOA rules are the same statewide; ComEd 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 Grundy 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).