NuclearOperatingPJM

Dresden Generating Station

Nuclear power plant in Grundy County, Illinois. 2,018.6 MW of nameplate capacity across 2 generators, operated by Constellation Nuclear.

Also known as EIA plant 869

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CPV Three Rivers Energy CenterMorris Cogeneration LLCKendall County Generation FacilityWater Lily Solar LLCDresden5 km
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6 plants within 11 km, from EIA coordinates.

Key facts

Capacity
2,018.6 MWNameplate
Generators
2 operatingEIA-860M, August 2026
Operating since
August 1970First generator online
Operator
Constellation NuclearEIA operator ID 55951
Grid
PJMBalancing authority PJM
Price nodes
2 PJM nodesResource nodes with prices
Location
Grundy County, IL41.3900, −88.2700
EIA plant ID
869EIA plant page

Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.

How much power Dresden produces

Free · EIA-923

Net generation, 2025

15.2 TWh

15,205,342 MWh, final

Capacity factor, 2025

86.0%

2024: 86.0%

January to July 2026

9.16 TWh

Provisional

Range, 2015 to 2025

15.0–15.5

TWh a year. Low 2021, high 2018

Annual net generation, TWhCapacity factor below each year
Annual net generation from EIA-923
YearNet generation, MWhCapacity factorMonths reported
200013,232,551Not reported12 of 12
200112,538,673Not reported12 of 12
200213,585,924Not reported12 of 12
200313,677,167Not reported12 of 12
200412,346,717Not reported12 of 12
200513,622,453Not reported12 of 12
200614,442,046Not reported12 of 12
200714,530,781Not reported12 of 12
200814,384,845Not reported12 of 12
200914,267,413Not reported12 of 12
201014,593,123Not reported12 of 12
201114,714,32383.2%12 of 12
201214,802,00083.5%12 of 12
201315,412,472Not reported12 of 12
201415,128,94085.6%12 of 12
201515,188,35885.9%12 of 12
201615,443,89387.1%12 of 12
201715,444,88287.3%12 of 12
201815,538,13587.9%12 of 12
201915,081,71585.3%12 of 12
202015,478,88887.3%12 of 12
202114,956,68084.6%12 of 12
202215,408,95087.1%12 of 12
202315,269,19886.3%12 of 12
202415,252,47186.0%12 of 12
202515,205,34286.0%12 of 12
2026 (provisional, partial year)9,158,00589.2%7 of 7

* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.

Power prices and basis

Free account · PJM

Emissions

Free · EPA CAMPD

No EPA emissions units are linked to this plant.

Water use

Free · EIA-923 cooling, USGS

Withdrawal, 2024

475,111

million gallons

Consumption, 2024

4,973

million gallons

Source

Kankakee River

Surface, Fresh. Once-through with cooling pond

Watershed stress

Low · 0.251

USGS SUI, HUC12 Kankakee River

12 of 12 cooling months report withdrawal. SUI of the source river HUC12 within 3 km. Cooling-pond plants report water circulated through the pond as withdrawal, so withdrawal is far above consumption. Blank volumes are unreported, not zero.

Generators

Free · EIA-860M
GeneratorTechnologyNameplate MWOnline since
2Nuclear1,009.3August 1970
3Nuclear1,009.3October 1971

Ownership and offtake

Pro
Pro

Ownership and offtake are part of Pro

Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Constellation Nuclear as the operator, which is not always the owner.

Modeled data

Pro

Pro adds modeled values for this plant. Everything above stays free.

Modeled

Generation potential vs reported

Monthly potential at seasonal net capability, next to EIA-923 output. Shows how much of the plant's capability was used.

Analyst and MCP

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Power plants near Dresden

More plants operated by Constellation Nuclear

Questions about Dresden

How much power does Dresden Generating Station produce?

Dresden Generating Station reported 15,205,342 MWh (15.2 TWh) of net generation in 2025, a 86.0% capacity factor on 2,018.6 MW of nameplate capacity. From January to July 2026 it reported 9.16 TWh, which is provisional.

Where is Dresden Generating Station?

Dresden Generating Station is in Grundy County, Illinois, at 41.3900, −88.2700. It is in the PJM Interconnection, LLC balancing area (PJM).

Who operates Dresden Generating Station?

EIA-860M for August 2026 lists Constellation Nuclear as the operator (EIA operator ID 55951). The operator is not always the owner.

When did Dresden Generating Station start operating?

Its first generator began operating in August 1970, according to EIA-860M.

Does InfraMap have power prices for Dresden Generating Station?

Yes. InfraMap has PJM day-ahead and real-time prices at 2 price nodes linked to Dresden Generating Station, with the hub price and node-to-hub basis. Prices are free with an InfraMap account; pricing node names are part of InfraMap Pro.

Sources

  • EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
  • EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
  • PJM day-ahead and real-time prices; node and hub assignments as of 2026-10-05
  • EIA-923 cooling water 2024 and the USGS surface water supply and use index, Water years 2010-2020 (Oct 2009 to Sep 2020), mean of monthly values

Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page