Indiana Michigan Power Company - Berrien County - PJM
Donald C. Cook is an EIA-anchored 2,285.3 MW, two-unit nuclear station on the Lake Michigan shore in southwest Michigan. NRC records identify Indiana Michigan Power as licensee and list operating-license expirations in 2034 and 2037.
Canonical EIA plant baseline.
plant-6000
Answers use this researched asset profile with live PJM data. Ask about ownership, equipment, project history, or current grid context.
Live PJM public data · answers can be wrong, verify against source data or the ISO.
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Operating generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| 1 | 1,152 MW 1,009 MW summer | Nuclear Nuclear · ST | Aug 1975 | Operating |
| 2 | 1,133.3 MW 1,168 MW summer | Nuclear Nuclear · ST | Jul 1978 | Operating |
Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.
Monthly generation is reported through EIA-923. Capacity factor uses the current EIA nameplate capacity and is shown only for complete calendar years.
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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| Largest reported plants | Capacity | State | |
|---|---|---|---|
| Rockport | 2,600 MW | IN | |
| Donald C CookCurrent | 2,285.3 MW | MI | |
| St. Joseph Solar | 20 MW | IN | |
| Berrien Springs | 7.2 MW | MI | |
| OlivePV | 5 MW | IN | |
| Twin Branch | 4.8 MW | ||
Project milestones and public references behind the asset profile.
NRC issued original operating license DPR-58 for Unit 1.
EIA-860 lists generator 1 with this operating date.
NRC issued original operating license DPR-71 for Unit 2.
EIA-860 lists generator 2 with this operating date.
NRC issued renewed 20-year operating licenses DPR-58 and DPR-74 for Units 1 and 2, respectively, extending operation to October 25, 2034 and December 23, 2037.
Alstom was awarded a contract to provide steam turbine retrofit services for Unit 2 comprising manufacture, supply, and installation of one high-pressure turbine module and three low-pressure inner blocks, expected to add 60 MW to Unit 2 capacity.
Alstom Unit 2 turbine retrofit equipment (one HP module and three LP inner blocks) scheduled to be operational in fall 2016 following a 35-day outage. Expected to add 60 MW to Unit 2 capacity.
Answered from the published record above. Questions whose inputs this profile does not carry are omitted rather than estimated.
Donald C Cook has a reported capacity of 2,285.3 MW. Source: EIA Form 860M.
Donald C Cook is a nuclear facility in Berrien County, MI, participating in the PJM market.
Donald C Cook is in Berrien County, MI, inside the PJM balancing area.
Donald C Cook is operated by Indiana Michigan Power Co according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.
Donald C Cook reported 18,500.8 GWh over the twelve months to 2026-04. Figures are net generation as filed to EIA-923.
By capacity, Donald C Cook ranks #18 of 54 operating plants of the same technology nationally. It ranks #1 of 2 in MI.
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.
Portfolio membership follows the latest EIA-860 reporting entity. It does not imply ultimate ownership.
NRC approved the indirect transfer of control of Cook licenses resulting from AEP's corporate restructuring. Central and South West Corporation became the direct parent of Indiana Michigan Power; AEP remained the ultimate parent. No physical changes, operational changes, or direct license transfers occurred.