High Dam — Plant Summary
- EIA Plant ID
- 2574
- Capacity
- 11.9 MW
- Primary Fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Status
- Operating
- Location
- Oswego, NY
- Operating Since
- 1928
- Generators
- 4
- Operator
- Oswego City of
- Parent Company
- —
- Annual Generation
- 25,554 MWh
- Capacity Factor
- 24.5%
- Balancing Authority
- New York Independent System Operator
- ISO/RTO
- NYISO
- NERC Region
- NPCC
High Dam
OperatingHydro
Ranked #37 of 165 Hydro plants in NY#613 of 1454 nationally
11.9 MW Hydro operating in Oswego, NY — New York Independent System Operator
EIAWD
11.9 MW
Nameplate Capacity
4
Generators
units
Conventional Hydroelectric
Technology
1928
Operating Since
Location
Coordinates
43.4433, -76.4965
County
Oswego, NY
Nearby Plants
- VarickHydro8 MW · 0.9 km
- Onondaga County- ClearwaterSolar2 MW · 2.3 km
- Summit - Scriba CSGSolar5 MW · 3.2 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Oswego City of | — | — |
| Owner(s) | Oswego City of | — | — |
| Status | Operating | — | — |
Ownership Chain
No GEM tracker match for this plant — ownership chain unavailable.
About
High Dam is a hydroelectric power plant located in Oswego County, New York. The plant has a total capacity of 11.9 MW across four generators. It began operating in 1928, utilizing conventional hydroelectric technology and water (WAT) as its primary fuel source. The plant is owned and operated by Oswego City of. High Dam operates within the New York Independent System Operator (NYISO) balancing authority and the Northeast Power Coordinating Council (NPCC) NERC region.
In the most recent year with available data, High Dam generated 25,554 MWh of electricity, achieving a capacity factor of 24.5%. The plant is ranked as the 37th largest in New York State out of 165 power plants, and nationally it is ranked 624th out of 1464.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
NPCC
Balancing Authority
New York Independent System Operator
Grid Voltage
34.5 kV
Regulatory Status
RE
Entity Type
Municipal
Sector
Electric Utility
Generation
3.0K MWh
Latest Month
25.6K MWh
Annual Generation
24.5%
Capacity Factor
Jan 2022 – Dec 2024
Financial Data
No financial data available for this plant.
Pricing & Market Data
MEDIUM confidencePoint of Interconnection
Nearest Substation
INDECK___OSWEGO
Substation Distance
< 10 km
Coord Source
NYISO direct
Market Position
ISO/RTO Market
NYISO
LMP Node
—
Pricing Hub
NYISO Zone C
Node Source
Shared substation inference
Substation identified. Node ID not yet resolved against ISO roster.
23783Nearby ISO Node
23606Substation
23613Substation
News & Articles (10)Beta
General
The Political Making of the Aswan High Dam: A Legacy of Failure and Missed Alternatives
By Yonas Yizezew, Researcher at Horn Review. The Aswan High Dam ranks among the most audacious engineering projects of the twentieth century...
horn review·3 months ago
Industry
The Political Making of the Aswan High Dam: A Legacy of Failure and Missed Alternatives
By Yonas Yizezew, Researcher at Horn Review. The Aswan High Dam ranks among the most audacious engineering projects of the twentieth century...
Aswan High Dam (operator)
horn review·3 months ago
Industry·technology
Why China Built 162 Square Miles of Solar Panels on the World’s Highest Plateau
China is using the high-altitude expanse for immense solar panel farms and wind turbines and has begun work on the world's largest...
China (developer)
The New York Times·5 months ago
Grid·outage
Danger and Intrigue Hang Over Power Cut at Russian-Held Nuclear Plant
The Zaporizhzhia site in southeastern Ukraine has lacked external power to cool its reactors for five days.
Zaporizhzhia (operator)
The New York Times·5 months ago
Last updated 2026-03-14
View all 10 articles