Niagara
Hydro power plant in Roanoke County, Virginia. 3.6 MW of nameplate capacity across 2 generators, operated by Appalachian Power Co.
Also known as EIA plant 3778
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Key facts
- Capacity
- 3.6 MWNameplate
- Generators
- 2 operatingEIA-860M, August 2026
- Operating since
- June 1954First generator online
- Operator
- Appalachian Power CoEIA operator ID 733
- Grid
- PJMBalancing authority PJM
- Price nodes
- 1 PJM nodeResource nodes with prices
- Location
- Roanoke County, VA37.2544, −79.8756
- EIA plant ID
- 3778EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Niagara produces
Free · EIA-923Net generation, 2025
4.95 GWh
4,948 MWh, final
Capacity factor, 2025
15.7%
2024: 24.0%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
0.0–10.5
GWh a year. Low 2015, high 2019
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 6,455 | Not reported | 12 of 12 |
| 2001 | 4,955 | Not reported | 12 of 12 |
| 2002 | 3,893 | Not reported | 12 of 12 |
| 2003 | 12,257 | Not reported | 12 of 12 |
| 2004 | 5,994 | Not reported | 12 of 12 |
| 2005 | 8,592 | Not reported | 12 of 12 |
| 2006 | 8,128 | Not reported | 12 of 12 |
| 2007 | 6,997 | Not reported | 12 of 12 |
| 2008 | 4,169 | Not reported | 12 of 12 |
| 2009 | 10,132 | Not reported | 12 of 12 |
| 2010 | 10,549 | 33.5% | 12 of 12 |
| 2011 | 9,746 | 30.9% | 12 of 12 |
| 2012 | 6,693 | 21.2% | 12 of 12 |
| 2013 | 10,449 | 33.1% | 12 of 12 |
| 2014 | 8,006 | Not reported | 12 of 12 |
| 2015 | 0 | 0.0% | 12 of 12 |
| 2016 | 0 | 0.0% | 12 of 12 |
| 2017 | 0 | 0.0% | 12 of 12 |
| 2018 | 7,858 | 24.9% | 12 of 12 |
| 2019 | 10,524 | 33.4% | 12 of 12 |
| 2020 | 8,050 | 25.5% | 12 of 12 |
| 2021 | 8,947 | 28.4% | 12 of 12 |
| 2022 | 8,221 | 26.1% | 12 of 12 |
| 2023 | 8,001 | 25.4% | 12 of 12 |
| 2024 | 7,600 | 24.0% | 12 of 12 |
| 2025 | 4,948 | 15.7% | 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 · PJMEmissions
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 |
|---|---|---|---|
| 1 | Conventional Hydroelectric | 2.4 | June 1954 |
| 2 | Conventional Hydroelectric | 1.2 | June 1954 |
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 Appalachian Power Co 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 Niagara
More plants operated by Appalachian Power Co
Questions about Niagara
How much power does Niagara produce?
Niagara reported 4,948 MWh (4.95 GWh) of net generation in 2025, a 15.7% capacity factor on 3.6 MW of nameplate capacity.
Where is Niagara?
Niagara is in Roanoke County, Virginia, at 37.2544, −79.8756. It is in the PJM Interconnection, LLC balancing area (PJM).
Who operates Niagara?
EIA-860M for August 2026 lists Appalachian Power Co as the operator (EIA operator ID 733). The operator is not always the owner.
When did Niagara start operating?
Its first generator began operating in June 1954, according to EIA-860M.
Does InfraMap have power prices for Niagara?
Yes. InfraMap has PJM day-ahead and real-time prices at 1 price node linked to Niagara, 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