MRP Elgin LLC is a natural gas-fired power facility with 540 MW of EIA-reported nameplate capacity in Cook County, Illinois, registered as EIA Plant ID 55438. The plant's generating configuration is four natural-gas-fired generating units in a combustion-turbine configuration. The plant began commercial operation in 2002.
EIA-reported nameplate capacity; other nameplate and seasonal ratings may differ.
Primary generation technology.
Cook County · PJM
MRP Elgin LLC is currently operating; a closure or retirement is listed for September 10, 2024.
Best-supported operating milestone.
Natural Gas Fired Combustion Turbine
MRP Elgin LLC is currently operating; a closure or retirement is listed for September 10, 2024.
MRP Elgin LLC is currently operating; a closure or retirement is listed for September 10, 2024.
Similar plants ranked by technology, capacity, and distance.
Operating generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| CT01 | 135 MW 121.1 MW summer | Natural Gas Fired Combustion Turbine Natural Gas · GT | Sep 2002 | Operating |
| CT02 | 135 MW 121.7 MW summer | Natural Gas Fired Combustion Turbine Natural Gas · GT | Oct 2002 | Operating |
| CT03 | 135 MW 120.3 MW summer | Natural Gas Fired Combustion Turbine Natural Gas · GT | Oct 2002 | Operating |
| CT04 | 135 MW 122.4 MW summer | Natural Gas Fired Combustion Turbine Natural Gas · GT | Nov 2002 | Operating |
Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.
Deterministic links to ERCOT market resources, price records, outage disclosures, queue records, and nearby infrastructure. Candidate joins remain labeled until corroborated.
Source-backed project transactions, agreements, land records, permits, and environmental disclosures. Portfolio and adjacent-project facts remain explicitly scoped.
Parties, market resources, and identifiers tied to this asset, with owner, operator, developer, EPC, compliance provider, and interconnecting entity roles kept separate.
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Project milestones and public references behind the asset profile.
Ameren announced that construction of Elgin Energy Center would begin on August 1, with part of the plant expected to be operational in 2002.
PJM
PJM · Cook County
Monthly generation is reported through EIA-923. Capacity factor uses the current EIA nameplate capacity and is shown only for complete calendar years.
| Largest reported plants | Capacity | State | |
|---|---|---|---|
| MRP Elgin LLCCurrent | 540 MW | IL | |
| MRP Rocky Road LLC | 374 MW | IL |
Portfolio membership follows the latest EIA-860 reporting entity. It does not imply ultimate ownership.
View full reporting portfolioThe plant began commercial operation in fall 2002. FERC records show CT01 entering service in September, CT02 and CT03 in October, and CT04 in November; the facility was configured with four simple-cycle natural-gas combustion turbines.
EIA-860 lists generator CT01 with this operating date.
EIA-860 lists generator CT02, generator CT03 with this operating date.
EIA-860 lists generator CT04 with this operating date.
Rockland Power Partners II, the investment fund associated with the subsequent Elgin acquisition, closed with $425 million of capital.
GE Energy Financial Services announced a $50 million senior secured term loan to Rockland Capital to help finance the Elgin acquisition and related fees and expenses.
Middle River Power's corporate timeline records its acquisition of Elgin and Rocky Road in Illinois in November 2023. Lincoln Power was identified as the owner of the Elgin and Rocky Road plants earlier in 2023, and later reporting connected the acquisition to the Lincoln Power bankruptcy process.
Middle River Power withdrew its proposed retirement of the 540-MW Elgin Energy Center, reversing a plan that would have retired the plant by June 1, 2025.
MRP Elgin LLC and MRP Rocky Road LLC filed a joint application for authorization under Section 203 of the Federal Power Act.
Dairyland stated that it owns Elgin Energy Center in Elgin.
Answered from the published record above. Questions whose inputs this profile does not carry are omitted rather than estimated.
MRP Elgin LLC has a reported capacity of 540 MW. Source: EIA Form 860.
MRP Elgin LLC is a Natural Gas Fired Combustion Turbine facility in Cook County, IL, participating in the PJM market.
MRP Elgin LLC is in Cook County, IL, inside the PJM balancing area.
MRP Elgin LLC is operated by Lincoln Operating Services, LLC according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.
MRP Elgin LLC reports a commercial operation date of 2002. Current status: operating. Source: EIA Form 860.
MRP Elgin LLC reported 62.2 GWh over the twelve months to 2024-12. Figures are net generation as filed to EIA-923.
By capacity, MRP Elgin LLC ranks #81 of 825 operating plants of the same technology nationally. It ranks #9 of 37 in IL.
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.
