Lockport Powerhouse — Plant Summary
- EIA Plant ID
- 10903
- Capacity
- 16 MW
- Primary Fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Status
- Out of service
- Location
- Will, IL
- Operating Since
- 1999
- Generators
- 2
- Operator
- Metro Wtr Recl Dist Grtr Chi
- Parent Company
- —
- Annual Generation
- 15,559 MWh
- Capacity Factor
- 11.2%
- Balancing Authority
- PJM Interconnection, LLC
- ISO/RTO
- PJM
- NERC Region
- RFC
Lockport Powerhouse
Out of serviceHydro
Ranked #1 of 8 Hydro plants in IL#530 of 1454 nationally
16 MW Hydro out of service in Will, IL — PJM Interconnection, LLC
EIAWD
16 MW
Nameplate Capacity
2
Generators
units
Conventional Hydroelectric
Technology
1999
Operating Since
Location
Coordinates
41.5697, -88.0789
County
Will, IL
Nearby Plants
- Romeoville 34B-SLCHI234BESS1.6 MW · 4.0 km
- Romeoville 34A-SLCHI234BESS1.6 MW · 4.2 km
- IL Joliet 1101 Cherry Hl RdSolar4 MW · 8.2 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Metro Wtr Recl Dist Grtr Chi | — | — |
| Owner(s) | Metro Wtr Recl Dist Grtr Chi | — | — |
| Status | Out of service | — | — |
Ownership Chain
No GEM tracker match for this plant — ownership chain unavailable.
About
The Lockport Powerhouse is an American run-of-the-river dam used by the Metropolitan Water Reclamation District of Greater Chicago to control the outflow of the Sanitary and Ship Canal and limit the diversion of water from Lake Michigan into the Des Plaines River.
Read more on WikipediaLockport Powerhouse is a 16 MW hydroelectric generating station located in Will County, Illinois. The plant began operating in 1999 and is owned and operated by Metro Water Reclamation District of Greater Chicago. It utilizes conventional hydroelectric technology and is fueled by water (WAT). The facility consists of two generators.
Lockport Powerhouse operates within the PJM Interconnection, LLC balancing authority and the RFC NERC region. In the state of Illinois, it ranks as the largest of eight hydroelectric plants. Nationally, it is ranked 535 out of 1464 hydroelectric facilities. The plant's latest annual generation was 15,559 MWh, resulting in a capacity factor of 11.2%.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
RFC
Balancing Authority
PJM Interconnection, LLC
Grid Voltage
6.5 kV
Regulatory Status
NR
Entity Type
Municipal
Sector
IPP Non-CHP
Generation
2.2K MWh
Latest Month
15.6K MWh
Annual Generation
11.2%
Capacity Factor
Jan 2023 – Dec 2025
Financial Data
No financial data available for this plant.
Pricing & Market Data
MEDIUM confidenceMarket Position
ISO/RTO Market
PJM
LMP Node
456 JOL 138 KV TR71 12
Pricing Hub
N ILLINOIS HUB
Location Type
Load Node
Node Source
Curated node match
News & Articles (5)Beta
Hazards·flooding
Body found in water near Lockport Dam in Chicago's southwest suburbs
The body was found a little after 1 p.m. near the dam which manages flooding risk along the Chicago Sanitary and Ship Canal.
CBS News·1 years ago
General
After 43 years, remains of man found in sealed crate identified by Will County coroner
Decades after it was discovered decayed, the body of a man found dead in a sealed wooden crate at the Lockport Lock in 1980 has been finally...
Chicago Tribune·3 years ago
Industry·corporate
NRG Coal-Fired Power Plant To Close Romeoville Location In 2022
Energy company NRG is closing two of its Illinois coal plants, including one in Romeoville, citing economic pressures and a transition from coal as reasons.
NRG (operator)
Patch·4 years ago
General
Asbestos in Illinois: Are You at Risk of Mesothelioma?
Learn more about asbestos exposure in Illinois. Find responsible companies, at-risk jobsites and info about mesothelioma risks.
Mesothelioma.com·8 years ago
Last updated 2026-03-26
View all 5 articles