How many battery storage projects are planned in Illinois?

Developers have proposed 75 battery storage projects in Illinois with 17 GW of capacity, according to the grid operators' interconnection queues. Most queue projects are never built.

What is the largest planned battery storage project in Illinois?

Aurora E.C. 138kV is the largest planned, at 1,206 MW. It is expected to come online in 2025.

Who is developing battery storage projects in Illinois?

Interconnection queues list each project under a project company, not the developer behind it. Cleanview researches the developer of every project and has them on paid plans.

Planned battery storage projects in Illinois

Developers have proposed 75 battery storage projects in Illinois with 17 GW of capacity, in the grid operators' interconnection queues.

Planned75

See operating battery storage projects in Illinois

Updated monthly. Last updated November 2026.

Under 50 MW50–249 MW250 MW and up

Updated monthly. Last updated November 2026.

More planned battery storage projects in Illinois are expected online in 2028 than in any other year

2026’262027’272028’282029’292030’302031’312032’322033’33

Planned battery storage projects by the year they're expected online. Source: the grid operators' interconnection queues, compiled by Cleanview.

The 10 largest planned battery storage projects in Illinois

Planned, by capacity

#	Battery storage project	County	Expected online	Capacity
1	Aurora E.C. 138kV	Illinois	2025	1,206 MW
2	Zion Energy Center - BESS	Lake County	2029	635 MW
3	Silver Lake 345 kV	McHenry County	2024	600 MW
4	Silver Lake 345 kV	McHenry County	–	600 MW
5	Nelson-Electric Junction 345 kV	Lee County	2023	600 MW
6	Nelson-Electric Junction 345 kV	Lee County	–	600 MW
7	Top Crop Generating Facility	Lasalle County	2029	400 MW
8	Top Crop Generating Facility	Lasalle County	2029	350 MW
9	Cordova 345 kV	Rock Island County	2024	335 MW
10	Cordova 345 kV	Rock Island County	–	335 MW

Planned battery storage projects expected online soonest in Illinois

In the next 18 months, soonest first

#	Battery storage project	County	Expected online	Capacity
1	Hamilton	Hamilton County	2027	200 MW
2	Towerline	Tazewell County	2027	200 MW
3	Bloomington Brokaw	Peoria County	2027	300 MW
4	7ASTER - 7CMDR 345.0kV	Perry County	2027	200 MW
5	Faraday	Macon County	2027	100 MW
6	Faraday	Macon County	2027	100 MW
7	Romeoville 34 - SLCHI234 - BSCHI234	Will County	2027	1 MW
8	Cincinnati 138 kV Substation	Tazewell County	2027	198 MW
9	Rising	Champaign County	2027	300 MW
10	7JORD - 7CMDR 345.0kV	Perry County	2027	200 MW

The developer behind each project is on paid plans. See plans

How Cleanview tracks battery storage projects

Operating battery storage projects come from the EIA's monthly survey of power plants. Planned projects come from the grid operators' interconnection queues. We research who is developing each one, since a queue lists a project company, not its owner.

Questions about battery storage projects in Illinois

How many battery storage projects are planned in Illinois?: Developers have proposed 75 battery storage projects in Illinois with 17 GW of capacity, according to the grid operators' interconnection queues. Most queue projects are never built.
What is the largest planned battery storage project in Illinois?: Aurora E.C. 138kV is the largest planned, at 1,206 MW. It is expected to come online in 2025.
Who is developing battery storage projects in Illinois?: Interconnection queues list each project under a project company, not the developer behind it. Cleanview researches the developer of every project and has them on paid plans.