MPH Elwood

MPH Elwood — 768 MW gas plant, Will County, IL · Ask the Grid

Units and generators

Operating generator records and technology attributes reported through EIA-860.

Generator	Capacity	Technology	Operation	Status
GT1	192 MW 150 MW summer	Natural Gas Fired Combustion Turbine Natural Gas · GT	Jul 1999	Operating
GT2	192 MW 150 MW summer	Natural Gas Fired Combustion Turbine Natural Gas · GT	Jul 1999	Operating
GT3	192 MW 150 MW summer	Natural Gas Fired Combustion Turbine Natural Gas · GT	Jul 1999	Operating
GT4	192 MW 150 MW summer	Natural Gas Fired Combustion Turbine Natural Gas · GT	Jul 1999	Operating

Commercial, land, and environmental record

Source-backed project transactions, agreements, land records, permits, and environmental disclosures. Portfolio and adjacent-project facts remain explicitly scoped.

Land and environmental record

Cooling-Water And Wastewater Controls

2025

Outfalls 001-004 limited to evaporative cooling water and stormwater runoff

NPDES conditions identify outfalls 001-004 as evaporative cooling water and stormwater runoff with monitoring for flow, pH, and temperature. Outfalls limited to evaporative cooling water and stormwater runoff, free from process and other wastewater discharges. Simple-cycle combustion not subject to steam-electric rules.

NPDES Permit No. IL0080300 Notice No. 25090901.docx Public Notice Beginning Date: December 10, 2025 Public Notice Ending Date: January 9,

County Appraisal And Parcel Record

2025

21.47 acres

Will County appraisal identifies MPH ELWOOD LLC as owner of Illinois parcel with 21.47 non-farm and total acres. Parcel PIN 10-11-07-400-012-0000; legal description: part of southeast quarter of Section 7, Township 34 North, Range 10 East.

Comptroller - JETI

Emissions Control And Monitoring

2000

Low-NOx combustion and NOx CEMS; normal operation 0.05-0.055 lb NOx/mmBtu; permit limit 0.061 lb NOx/mmBtu

Illinois environmental records state Elwood units have separate continuous emissions monitoring systems measuring NOx under Acid Rain regulations. Low-NOx combustors; normal operation ~0.05-0.055 lb NOx/mmBtu; permit limit 0.061 lb NOx/mmBtu (15 ppm); startup rates ~0.1-0.115 lb NOx/mmBtu.

Source

Water Discharge

2025

0.017 MGD average evaporative-cooling-water and stormwater discharge

Illinois EPA NPDES fact sheet states simple-cycle combustion-turbine facility operation results in average discharge of 0.017 million gallons per day through outfalls 001-004. Receiving waters: storm sewers tributary to unnamed tributary to Cedar Creek.

NPDES Permit No. IL0080300 Notice No. 25090901.docx Public Notice Beginning Date: December 10, 2025 Public Notice Ending Date: January 9,

Water-Quality Compliance Condition

2025

NPDES effluent monitoring: pH 6.5-9.0; temperature monitored when discharging

Permit specifies pH range 6.5 to 9.0 and monthly estimated flow and grab-sample monitoring. Temperature monitored by grab sample when evaporative cooling water discharged. Outfalls discharge to storm-sewer tributaries of unnamed tributary to Cedar Creek.

NPDES Permit No. IL0080300 Notice No. 25090901.docx Public Notice Beginning Date: December 10, 2025 Public Notice Ending Date: January 9,

Timeline and sources

Project milestones and public references behind the asset profile.

Project timeline

Jul 1999
Jul 1999
Generators enter operationEIA-860
EIA-860 lists generator GT1, generator GT2, generator GT3, generator GT4 with this operating date.
Oct 2000
Oct 2000
Expansion Construction CommencedElwood Ener...
Construction of the expanded project commenced in October 2000.
Oct 30, 2001
Oct 30, 2001
Original project bond financing closedPeoples Ene...
Elwood Energy closed a $402 million, 25-year bond issuance backed primarily by cash flows from three power sales agreements.

Sources

PublisherReferenceType

U.S. Energy Information AdministrationEIA-860 generator inventoryFederal registry

U.S. Energy Information AdministrationEIA-923 generation filingsFederal filing

jpowerusa.comElwood Energy - J-Power USAother

Common questions about MPH Elwood

Answered from the published record above. Questions whose inputs this profile does not carry are omitted rather than estimated.

How big is MPH Elwood?

MPH Elwood has a reported capacity of 768 MW. Source: EIA Form 860.

What kind of plant is MPH Elwood?

MPH Elwood is a Natural Gas Fired Combustion Turbine facility in Will County, IL, participating in the PJM market.

Where is MPH Elwood located?

MPH Elwood is in Will County, IL, inside the PJM balancing area.

How much electricity does MPH Elwood generate?

MPH Elwood reported 2.4 GWh over the twelve months to 2026-06. Figures are net generation as filed to EIA-923.

Where does MPH Elwood connect to the grid?

MPH Elwood interconnects at Elwood Substation, on the ComEd system.

How does MPH Elwood compare to other plants?

By capacity, MPH Elwood ranks #33 of 825 operating plants of the same technology nationally. It ranks #3 of 37 in IL.

Co-located assets

Plants within 25 km, nearest first, regardless of technology. Proximity is straight-line distance between mapped plant coordinates; it does not by itself establish a shared point of interconnection.

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Overview

MPH Elwood

Overview

Profile

Structured profile

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Units and generators

Performance

Peer context

Monthly generation

Grid and market context

Nearby substations

Commercial, land, and environmental record

Land and environmental record

Related parties and identifiers

Relationship graph

Parties and identifiers

Timeline and sources

Project timeline

Sources

Common questions about MPH Elwood

How big is MPH Elwood?

What kind of plant is MPH Elwood?

Where is MPH Elwood located?

How much electricity does MPH Elwood generate?

Where does MPH Elwood connect to the grid?

How does MPH Elwood compare to other plants?

Co-located assets