HydroOperatingPJM

Constantine

Hydro power plant in St Joseph County, Michigan. 1.2 MW of nameplate capacity across 4 generators, operated by Indiana Michigan Power Co.

Also known as EIA plant 1760

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MottvilleMiddlebury SolarHydro PlantElectric City SolarConstantine10 km
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5 plants within 21 km, from EIA coordinates.

Key facts

Capacity
1.2 MWNameplate
Generators
4 operatingEIA-860M, August 2026
Operating since
January 1923First generator online
Operator
Indiana Michigan Power CoEIA operator ID 9324
Grid
PJMBalancing authority PJM
Price nodes
4 PJM nodesResource nodes with prices
Location
St Joseph County, MI41.8436, −85.6694
EIA plant ID
1760EIA plant page

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

How much power Constantine produces

Free · EIA-923

Net generation, 2025

3.89 GWh

3,894 MWh, final

Capacity factor, 2025

37.0%

2024: 33.3%

January to July 2026

Not reported

Provisional. 0 of 7 months reported

Range, 2015 to 2025

3.5–5.4

GWh a year. Low 2024, high 2016

Annual net generation, GWhCapacity factor below each year
Annual net generation from EIA-923
YearNet generation, MWhCapacity factorMonths reported
20005,662Not reported12 of 12
20016,044Not reported12 of 12
20024,734Not reported12 of 12
20034,912Not reported12 of 12
20045,420Not reported12 of 12
20054,036Not reported12 of 12
20066,209Not reported12 of 12
20075,420Not reported12 of 12
20084,585Not reported12 of 12
20095,347Not reported12 of 12
20106,14358.4%12 of 12
20116,94166.0%12 of 12
20124,90846.6%12 of 12
20134,75245.2%12 of 12
20145,139Not reported12 of 12
20154,60443.8%12 of 12
20165,43851.6%12 of 12
20174,65144.2%12 of 12
20184,32741.2%12 of 12
20193,92237.3%12 of 12
20204,98447.3%12 of 12
20214,83045.9%12 of 12
20224,79945.7%12 of 12
20233,77635.9%12 of 12
20243,51233.3%12 of 12
20253,89437.0%12 of 12
2026 (provisional, partial year)Not reportedNot reported0 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

No EIA cooling-water record for this plant in 2024. Plants without steam cooling, such as wind, solar and batteries, do not report cooling water.

Generators

Free · EIA-860M
GeneratorTechnologyNameplate MWOnline since
1Conventional Hydroelectric0.3January 1923
2Conventional Hydroelectric0.3January 1923
3Conventional Hydroelectric0.3January 1929
4Conventional Hydroelectric0.3January 1923

Ownership and offtake

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Ownership and offtake are part of Pro

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

Modeled data

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Power plants near Constantine

More plants operated by Indiana Michigan Power Co

Questions about Constantine

How much power does Constantine produce?

Constantine reported 3,894 MWh (3.89 GWh) of net generation in 2025, a 37.0% capacity factor on 1.2 MW of nameplate capacity.

Where is Constantine?

Constantine is in St Joseph County, Michigan, at 41.8436, −85.6694. It is in the PJM Interconnection, LLC balancing area (PJM).

Who operates Constantine?

EIA-860M for August 2026 lists Indiana Michigan Power Co as the operator (EIA operator ID 9324). The operator is not always the owner.

When did Constantine start operating?

Its first generator began operating in January 1923, according to EIA-860M.

Does InfraMap have power prices for Constantine?

Yes. InfraMap has PJM day-ahead and real-time prices at 4 price nodes linked to Constantine, 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

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