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BATTERY STORAGEMarengo Battery Storage LLC
Marengo Battery Storage LLC is a 20.0 MW out of service battery storage site in McHenry County, Illinois, operated by Marengo Battery Storage LLC.
Plant statusMothballed
- Planning (completed)
- Consented (completed)
- Construction (completed)
- OperatingDec 2018 (completed)
- Mothballed (current stage)
Generators
Each generating unit EIA lists at this plant.
| Unit | Technology | Capacity | Status |
|---|---|---|---|
| MBSS | Batteries | 20 MW 20 MWh |
Out of service long-term |
Plant details
- Operator
- Marengo Battery Storage LLC
- Location
- McHenry County, Illinois
- Balancing authority
- PJM
- Sector
- IPP Non-CHP
- Capacity
- Out of service: 20.0 MW
- First unit online
- Dec 2018
- EIA plant ID
- 62856
Location
42.2527, -88.6400
Nearby power plants
- Marengo SolarSolar farms · 2.0 MW · 0.5 mi
- GrantSolar farms · 2.0 MW · 2.0 mi
- Lafayette 2 - McHenry Franks 1Solar farms · 2.0 MW · 2.2 mi
- SV CSG Garden Prairie 1, LLCSolar farms · 2.0 MW · 5.5 mi
- SV CSG Garden Prairie 2, LLCSolar farms · 2.0 MW · 5.6 mi
- Lafayette 2 - McHenry Franks 2Solar farms · 2.0 MW · 8.0 mi
- Pivot Energy IL 55 LLCSolar farms · 3.1 MW · 9.2 mi
- Pivot Energy IL 55b LLCSolar farms · 2.8 MW · 9.4 mi
- Osman TrustSolar farms · 4.5 MW · 9.6 mi
- Harmony Road SolarSolar farms · 1.9 MW · 11.0 mi
Source: U.S. Energy Information Administration, Form EIA-860M, September 2026. Planned dates are targets reported by the developer and often change. Report a problem