Search
Search plants, projects, owners, and states
Search plants, projects, owners, and states
2018.6 MW Nuclear operating in Grundy, IL — PJM Interconnection, LLC
2,018.6 MW
Nameplate Capacity
2
Generators
units
Nuclear
Technology
1970
Operating Since
Coordinates
41.3900, -88.2700
County
Grundy, IL
Nearby Plants
Owner data does not fully agree across sources.
EIA typically reports the operating utility, while GEM resolves to the financial owner or parent corporation. Both can be correct.
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Constellation Nuclear | Exelon Generation | Exelon |
| Owner(s) | Constellation Nuclear | Exelon | — |
| Status | Operating | operating | — |
Dresden Generating Station is the first privately financed nuclear power plant built in the United States. Dresden 1 was activated in 1960 and retired in 1978. Operating since 1970 are Dresden units 2 and 3, two General Electric BWR-3 boiling water reactors. Dresden Station is located on a 953-acre (386 ha) site in Grundy County, Illinois near the city of Morris. It is at the head of the Illinois River, where the Des Plaines River and Kankakee River meet. It is immediately northeast of the Morris Operation—the only de facto high-level radioactive waste storage site in the United States. It serves Chicago and the northern quarter of the state of Illinois, capable of producing 867 megawatts of electricity from each of its two reactors, enough to power over one million average American homes.
Read more on WikipediaDresden Generating Station is a 2,018.6 MW nuclear power plant located in Grundy County, Illinois. The plant began operating in 1970 and is owned by Exelon, with Constellation Nuclear as the operator. It consists of two nuclear reactors and is the fourth-largest power plant in Illinois and the 22nd-largest nuclear plant in the United States, based on capacity.
Dresden Generating Station operates within the PJM Interconnection, LLC balancing authority and the RFC NERC region. The plant's latest annual generation was 15,205,342 MWh, achieving a capacity factor of 86.0%.
Generated from EIA, GEM, and public data sources
ISO/RTO
PJM
Market
ISO/RTO Member
NERC Region
RFC
Balancing Authority
PJM Interconnection, LLC (PJM)
Grid Voltage
345.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
1.4M MWh
Latest Month
15.2M MWh
Annual Generation
86.0%
Capacity Factor
No financial data available for this plant.
This is a small open-data project — if you have sources or want more coverage here, drop a note.
Point of Interconnection
Nearest Substation
Dresden Generating Station
Substation Distance
< 10 km
Coord Source
OSM spatial
Market Position
ISO/RTO Market
PJM
LMP Node
86101102
Pricing Hub
N ILLINOIS HUB
Node Source
EIA-860 direct report
Last updated 2026-04-19
View all 8 articlesNo ask pi reports yet for this entity.
ask pi about Dresden Generating Station