Illinois · Battery

Proposed battery projects in Illinois

There are 72 proposed battery projects in Illinois's interconnection queue, totaling 11.72 GW of requested capacity. The largest is Monarch Grid, LLC project at 400 MW, and the median planned online year is 2027.

72
Proposed projects
11.72 GW
Requested capacity
162.8 MW
Average project size
2027
Median planned online year

All proposed battery projects in Illinois

TypeRegionIA Status
Monarch Grid, LLC project
AG2-545
BatteryPJMMchenrySystem Impact Study400 MW20252024
Queue J2377
J2377
BatteryMISOPeoriaCluster Study300 MW20242028
Queue J2647
J2647
BatteryMISOFranklinCluster Study300 MW20222028
Queue J3216
J3216
BatteryMISOPeoriaCluster Study300 MW20222027
Queue J3417
J3417
BatteryMISOMaconIn Progress (unknown study)300 MW20242028
Queue J3525
J3525
BatteryMISORock IslandIn Progress (unknown study)300 MW20242028
Queue J3558
J3558
BatteryMISOChampaignIn Progress (unknown study)300 MW20242027
Queue J3946
J3946
BatteryMISOTazewell—300 MW20252030
Queue J4118
J4118
BatteryMISOMclean—250 MW20252030
Queue J4198
J4198
BatteryMISOChristian—250 MW20252030
Twin Groves Storage I
AF2-252
BatteryPJMMcleanIA Executed248 MW20202028
Twin Groves Storage II
AF2-352
BatteryPJMMcleanIA Executed248 MW20202028
Queue J3727
J3727
BatteryMISOMadisonIn Progress (unknown study)225 MW20242028
Queue J2379
J2379
BatteryMISOClayCluster Study200 MW20222026
Queue J2402
J2402
BatteryMISOJohnsonCluster Study200 MW20222025
Queue J2532
J2532
BatteryMISOSangamonCluster Study200 MW20222026
Queue J2587
J2587
BatteryMISOEdgarCluster Study200 MW20222025
Queue J2607
J2607
BatteryMISOMontgomeryCluster Study200 MW20222026
Queue J2998
J2998
BatteryMISOSt. ClairCluster Study200 MW20222025
Queue J3031
J3031
BatteryMISOJeffersonCluster Study200 MW20222026
Queue J3296
J3296
BatteryMISOHamiltonIn Progress (unknown study)200 MW20242027
Queue J3298
J3298
BatteryMISOTazewellIn Progress (unknown study)200 MW20242027
Queue J3497
J3497
BatteryMISOPulaskiIn Progress (unknown study)200 MW20242028
Queue J3660
J3660
BatteryMISORock IslandIn Progress (unknown study)200 MW20242028
Queue J3729
J3729
BatteryMISOFranklinIn Progress (unknown study)200 MW20242028
Queue J3947
J3947
BatteryMISOShelby—200 MW20252030
Queue J4002
J4002
BatteryMISOEdgar—200 MW20252030
Queue J4137
J4137
BatteryMISOPulaski—200 MW20252030
Queue J4199
J4199
BatteryMISOFulton—200 MW20252029
Queue J4204
J4204
BatteryMISOMarion—200 MW—2031
Monarch Grid, LLC project
AG2-544
BatteryPJMMchenrySystem Impact Study200 MW20252024
Riverbank Energy
AF2-441
BatteryPJMCookFeasibility Study200 MW20202024
Surplus; J1712
S1095
BatteryMISOPerry—200 MW20252027
Queue J3515
J3515
BatteryMISOSangamonIn Progress (unknown study)199.9 MW20242026
Queue J2575
J2575
BatteryMISOTazewellCluster Study198 MW20222027
Queue J3517
J3517
BatteryMISOWilliamson—190 MW20242028
Queue J3904
J3904
BatteryMISOTazewell—175 MW20252030
Queue J2170
J2170
BatteryMISOClarkCluster Study150 MW20222024
Queue J2203
J2203
BatteryMISOAdamsCluster Study150 MW20222028
Queue J2627
J2627
BatteryMISOAdamsCluster Study150 MW20222025
Queue J3316
J3316
BatteryMISOWashingtonIn Progress (unknown study)150 MW20242028
Queue J3695
J3695
BatteryMISOClarkIn Progress (unknown study)150 MW20242028
Rockford Generation, LLC project
AH1-564
BatteryPJMWinnebagoSystem Impact Study150 MW20252025
Aurora Battery Storage II
AH1-563
BatteryPJM—System Impact Study150 MW20252025
Surplus
S1077
BatteryMISOSt. Clair—150 MW20252029
Queue J3063
J3063
BatteryMISOPerryCluster Study143 MW20222026
Queue J2551
J2551
BatteryMISOPutnamCluster Study110 MW20222026
Queue J2124
J2124
BatteryMISOChampaignCluster Study100 MW20212022
Queue J2195
J2195
BatteryMISOFayetteCluster Study100 MW20252024
Queue J2197
J2197
BatteryMISOClayCluster Study100 MW20252024
Queue J2375
J2375
BatteryMISOMaconCluster Study100 MW20222027
Queue J2383
J2383
BatteryMISOMaconCluster Study100 MW20222027
Queue J3344
J3344
BatteryMISOKnoxIn Progress (unknown study)100 MW20242028
Queue J3565
J3565
BatteryMISOChampaignIn Progress (unknown study)100 MW20242028
Queue J3968
J3968
BatteryMISOColes—100 MW20252028
Surplus
S1103
BatteryMISOPerry—100 MW20252026
Surplus
S1104
BatteryMISOFayette—100 MW20252026
Big Shoulders Storage LLC project
AH1-673
BatteryPJMCookSystem Impact Study85 MW2025—
Queue J2552
J2552
BatteryMISORock IslandCluster Study80 MW20222026
Scout Solar DevCo LLC project
AG2-675
BatteryPJMRock IslandSystem Impact Study80 MW20252024
NRG Midwest Storage LLC project
AH1-165
BatteryPJMWillSystem Impact Study72 MW20252025
Queue J2376
J2376
BatteryMISOShelbyCluster Study60 MW20222024
Queue J2159
J2159
BatteryMISOClarkCluster Study50 MW20212024
Queue J2974
J2974
BatteryMISOAdamsCluster Study50 MW20222026
Aurora Solar LLC project
AG2-061
BatteryPJMLasalleSystem Impact Study50 MW20252023
Top Crop Generating Facility
AF2-226
BatteryPJMLasalleSystem Impact Study50 MW20202023
Top Crop Generating Facility
AF2-319
BatteryPJMLasalleSystem Impact Study50 MW20202023
Zion Energy Center - BESS
AF2-027
BatteryPJMLakeIA Executed50 MW20192029
Queue J1882
J1882
BatteryMISOTazewellCluster Study45 MW20222024
Black Diamond Solar
AG1-460
BatteryPJMChristianSystem Impact Study30 MW20202022
Calumet BESS
AF2-031
BatteryPJMCookIA Executed20 MW20192028
Aurora Battery Storagesusp.
AG1-513
BatteryPJMWillIA Executed10 MW20202028

Browse Illinois's full interconnection queue. Compare with operating capacity: 3 operating storage plants in Illinois. Nationwide: Storage plants nationwide.

Source: "Queued Up" (Rand et al., Lawrence Berkeley National Laboratory, 2026 edition). Data: LBNL backbone through December 31, 2025; ISO-region statuses refreshed monthly (last: July 2026); non-ISO West and Southeast as of the LBNL edition.