Mill C
Hydro power plant in Clinton County, New York. 5 MW of nameplate capacity across 2 generators, operated by New York State Elec & Gas Corp.
Also known as Mill C Hydro Power Station · EIA plant 6486
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 5 MWNameplate
- Generators
- 2 operatingEIA-860M, August 2026
- Operating since
- August 1943First generator online
- Operator
- New York State Elec & Gas CorpEIA operator ID 13511
- Grid
- NYISOBalancing authority NYIS
- Price nodes
- 1 NYISO nodeResource nodes with prices
- Location
- Clinton County, NY44.6967, −73.6122
- EIA plant ID
- 6486EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Mill C produces
Free · EIA-923Net generation, 2025
21.8 GWh
21,788 MWh, final
Capacity factor, 2025
41.5%
2024: 53.4%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
13.2–31.3
GWh a year. Low 2021, high 2017
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 0 | Not reported | 12 of 12 |
| 2001 | 12,193 | Not reported | 12 of 12 |
| 2002 | 12,884 | Not reported | 12 of 12 |
| 2003 | 28,260 | Not reported | 12 of 12 |
| 2004 | 20,102 | Not reported | 12 of 12 |
| 2005 | 20,699 | Not reported | 12 of 12 |
| 2006 | 52,940 | Not reported | 12 of 12 |
| 2007 | 26,848 | Not reported | 12 of 12 |
| 2008 | 31,861 | Not reported | 12 of 12 |
| 2009 | 30,355 | Not reported | 12 of 12 |
| 2010 | 26,719 | 50.8% | 12 of 12 |
| 2011 | 27,215 | 51.8% | 12 of 12 |
| 2012 | 24,346 | 46.2% | 12 of 12 |
| 2013 | 27,083 | 51.5% | 12 of 12 |
| 2014 | 25,535 | 48.6% | 12 of 12 |
| 2015 | 19,221 | 36.6% | 12 of 12 |
| 2016 | 24,766 | 47.0% | 12 of 12 |
| 2017 | 31,296 | 59.5% | 12 of 12 |
| 2018 | 27,036 | 51.4% | 12 of 12 |
| 2019 | 26,774 | 50.9% | 12 of 12 |
| 2020 | 17,654 | 33.5% | 12 of 12 |
| 2021 | 13,198 | 25.1% | 12 of 12 |
| 2022 | 17,060 | 32.5% | 12 of 12 |
| 2023 | 29,094 | 55.4% | 12 of 12 |
| 2024 | 28,134 | 53.4% | 12 of 12 |
| 2025 | 21,788 | 41.5% | 12 of 12 |
| 2026 (provisional, partial year) | Not reported | Not reported | 0 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 · NYISOEmissions
Free · EPA CAMPDNo EPA emissions units are linked to this plant.
Water use
Free · EIA-923 cooling, USGSNo 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| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| 2 | Conventional Hydroelectric | 1.2 | August 1943 |
| 3 | Conventional Hydroelectric | 3.8 | November 1984 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists New York State Elec & Gas Corp as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
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Power plants near Mill C
More plants operated by New York State Elec & Gas Corp
Questions about Mill C
How much power does Mill C produce?
Mill C reported 21,788 MWh (21.8 GWh) of net generation in 2025, a 41.5% capacity factor on 5 MW of nameplate capacity.
Where is Mill C?
Mill C is in Clinton County, New York, at 44.6967, −73.6122. It is in the New York Independent System Operator balancing area (NYIS).
Who operates Mill C?
EIA-860M for August 2026 lists New York State Elec & Gas Corp as the operator (EIA operator ID 13511). The operator is not always the owner.
When did Mill C start operating?
Its first generator began operating in August 1943, according to EIA-860M.
Does InfraMap have power prices for Mill C?
Yes. InfraMap has NYISO day-ahead and real-time prices at 1 price node linked to Mill C, 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)
- NYISO day-ahead and real-time prices; node and hub assignments as of 2026-10-05
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page