Saint Marys Falls — Plant Summary
- EIA Plant ID
- 1865
- Capacity
- 23.7 MW
- Primary Fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Status
- Operating
- Location
- Chippewa, MI
- Operating Since
- 1932
- Generators
- 5
- Operator
- USACE-Detroit District
- Parent Company
- —
- Annual Generation
- 155,166 MWh
- Capacity Factor
- 74.5%
- Balancing Authority
- Midcontinent Independent Transmission System Operator, Inc..
- ISO/RTO
- MISO
- NERC Region
- RFC
Saint Marys Falls
OperatingHydro
Ranked #4 of 50 Hydro plants in MI#448 of 1454 nationally
23.7 MW Hydro operating in Chippewa, MI — Midcontinent Independent Transmission System Operator, Inc..
EIAWD
23.7 MW
Nameplate Capacity
5
Generators
units
Conventional Hydroelectric
Technology
1932
Operating Since
Location
Coordinates
46.5062, -84.3493
County
Chippewa, MI
Nearby Plants
- Edison SaultHydro41.8 MW · 1.6 km
- DafterDistillate Oil11 MW · 15.6 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | USACE-Detroit District | — | — |
| Owner(s) | USACE-Detroit District | — | — |
| Status | Operating | — | — |
Ownership Chain
No GEM tracker match for this plant — ownership chain unavailable.
About
The Saint Marys Falls Hydropower Plant is an 18-MW hydroelectric generating plant located in Sault Ste. Marie, Michigan. It extracts water from the St. Marys River under the supervision of the Army Corps of Engineers, and the power is taken up and distributed by the Cloverland Electric Cooperative, a rural utility that serves the Soo area.
Read more on WikipediaSaint Marys Falls is a 23.7 MW hydroelectric power plant located in Chippewa County, Michigan. The plant began operating in 1932 and consists of 5 generators utilizing conventional hydroelectric technology. It is owned and operated by the USACE-Detroit District. The plant's primary fuel source is water (WAT).
The facility operates within the Midcontinent Independent Transmission System Operator (MISO) balancing authority and the ReliabilityFirst Corporation (RFC) NERC region. In terms of size, Saint Marys Falls ranks as the 4th largest hydroelectric plant out of 50 in Michigan, and 452nd out of 1464 nationally. The plant's latest annual generation was 155,166 MWh, resulting in a capacity factor of 74.5%.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
RFC
Balancing Authority
Midcontinent Independent Transmission System Operator, Inc..
Grid Voltage
13.6 kV
Regulatory Status
RE
Entity Type
Federal
Sector
Electric Utility
Generation
13.3K MWh
Latest Month
155.2K MWh
Annual Generation
74.5%
Capacity Factor
Jan 2022 – Dec 2024
Financial Data
No financial data available for this plant.
Pricing & Market Data
HIGH confidencePoint of Interconnection
Nearest Substation
Magazine Substation · 69 kV
Substation Distance
0.676 km
Operator
American Transmission Company
Coord Source
OSM spatial
Market Position
ISO/RTO Market
MISO
LMP Node
MIUP.MAGAZESH
Pricing Hub
MICHIGAN.HUB
Location Type
Generation Node
Node Source
Curated node match
News & Articles (10)Beta
Last updated 2026-03-26
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