McHenry Battery Storage — Plant Summary
- EIA Plant ID
- 60656
- Capacity
- 20 MW
- Primary Fuel
- Battery Storage
- Technology
- Batteries
- Status
- Operating
- Location
- McHenry, IL
- Operating Since
- 2016
- Generators
- 1
- Operator
- McHenry Battery Storage
- Parent Company
- —
- Annual Generation
- -282 MWh
- Capacity Factor
- -0.2%
- Balancing Authority
- PJM Interconnection, LLC
- ISO/RTO
- PJM
- NERC Region
- SERC
McHenry Battery Storage
OperatingBESS
Ranked #3 of 4 BESS plants in IL#472 of 837 nationally
20 MW BESS operating in McHenry, IL — PJM Interconnection, LLC
EIAWD
20 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
2016
Operating Since
Location
Coordinates
42.3312, -88.2734
County
McHenry, IL
Nearby Plants
- Lilly Pond Road Solar 1, LLCSolar2 MW · 11.1 km
- Charter Durabar at WoodstockSolar2 MW · 11.9 km
- Charter Dura-BarNatural Gas6 MW · 12.4 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | McHenry Battery Storage | — | — |
| Owner(s) | McHenry Battery Storage | — | — |
| Status | Operating | — | — |
Ownership Chain
No GEM tracker match for this plant — ownership chain unavailable.
About
McHenry Battery Storage is a 20 MW battery energy storage system located in McHenry County, Illinois. The plant, which began operating in 2016, is owned and operated by McHenry Battery Storage. It consists of a single generator utilizing battery technology with lithium-ion (LIB) chemistry. The storage capacity of the battery system is 7.8 MWh, providing a duration of approximately 0.39 hours at full output.
The McHenry Battery Storage facility operates within the PJM Interconnection, LLC balancing authority, which falls under the SERC NERC region. As of the latest rankings, it is the 8th largest of 12 battery storage facilities in Illinois and ranks 695th out of 1205 nationally. The plant's primary fuel source is electricity (MWH), indicating it charges from the grid.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
SERC
Balancing Authority
PJM Interconnection, LLC
Grid Voltage
35.5 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Interconnection Queue1 projectBeta
McHenry Energy Storage
OperationalBattery20 MWPJM
Generation
−282 MWh
Net Charging
-282 MWh
Annual Net Energy
-0.2%
Capacity Factor
Jan 2022 – Dec 2024
Positive values indicate net discharge (generation exceeds station load). Negative values indicate net charging. Pure battery storage plants are typically net negative due to round-trip efficiency losses.
Financial Data
No financial data available for this plant.
Pricing & Market Data
HIGH confidencePoint of Interconnection
Nearest Substation
McHenry Substation · 138 kV
Substation Distance
< 10 km
Operator
Commonwealth Edison
Coord Source
OSM spatial
Market Position
ISO/RTO Market
PJM
LMP Node
193 MCHE34.5 KV L7544
Pricing Hub
N ILLINOIS HUB
Location Type
Load Node
Node Source
EIA-860 direct report
News & Articles (10)Beta
Regulatory·federal policy
What does Gov. JB Pritzker’s nuclear energy executive order do?
From Capitol News Illinois: A recent executive order by Gov. JB Pritzker set a new goal to begin development on new nuclear power plants by...
JB Pritzker (executive)
Shaw Local·3 weeks ago
General
Opposition grows to battery storage plan near Prairie Grove
Hundreds of residents have organized against plans for a battery storage facility near Prairie Grove, with concerns over the potential...
Shaw Local·2 months ago
Regulatory·federal policy
Pritzker signs major energy reform bill amid projected shortages
From Capitol News Illinois: At the core of the law is a structure to incentivize energy storage, or battery, projects.
JB Pritzker (executive)
Shaw Local·2 months ago
Industry·corporate
Battery storage facility proposed for McHenry County; opponents say it ‘poses direct dangers’
A battery energy storage facility is being eyed for Prairie Grove, but residents question the potential impacts on safety and wildlife.
Shaw Local·3 months ago
Last updated 2026-03-14
View all 10 articles