Silvis
Hydro power plant in Ketchikan Gateway, Alaska. 2.1 MW of nameplate capacity across 1 generator, operated by Ketchikan Public Utilities.
Also known as EIA plant 6581
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 2.1 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- January 1968First generator online
- Operator
- Ketchikan Public UtilitiesEIA operator ID 10210
- Grid
- Not reported
- Price nodes
- None linkedNo verified ISO node
- Location
- Ketchikan Gateway, AK55.3814, −131.5178
- EIA plant ID
- 6581EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Silvis produces
Free · EIA-923Net generation, 2025
14.3 GWh
14,316 MWh, final
Capacity factor, 2025
77.8%
2024: 15.1%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
2.8–14.5
GWh a year. Low 2024, high 2021
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 0 | Not reported | 12 of 12 |
| 2001 | 13,968 | Not reported | 12 of 12 |
| 2002 | 9,954 | Not reported | 12 of 12 |
| 2003 | 13,629 | Not reported | 12 of 12 |
| 2004 | 12,421 | Not reported | 12 of 12 |
| 2005 | 12,516 | Not reported | 12 of 12 |
| 2006 | 12,845 | Not reported | 12 of 12 |
| 2007 | 11,813 | Not reported | 12 of 12 |
| 2008 | 13,177 | Not reported | 12 of 12 |
| 2009 | 12,139 | Not reported | 12 of 12 |
| 2010 | 11,368 | 61.8% | 12 of 12 |
| 2011 | 12,871 | 70.0% | 12 of 12 |
| 2012 | 13,745 | 74.5% | 12 of 12 |
| 2013 | 10,997 | 59.8% | 12 of 12 |
| 2014 | 13,723 | 74.6% | 12 of 12 |
| 2015 | 13,607 | 74.0% | 12 of 12 |
| 2016 | 13,207 | 71.6% | 12 of 12 |
| 2017 | 10,110 | 55.0% | 12 of 12 |
| 2018 | 9,221 | 50.1% | 12 of 12 |
| 2019 | 8,560 | 46.5% | 12 of 12 |
| 2020 | 13,614 | 73.8% | 12 of 12 |
| 2021 | 14,462 | 78.6% | 12 of 12 |
| 2022 | 12,352 | 67.1% | 12 of 12 |
| 2023 | 11,460 | 62.3% | 12 of 12 |
| 2024 | 2,780 | 15.1% | 12 of 12 |
| 2025 | 14,316 | 77.8% | 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 accountNo verified ISO price node is linked to this plant, or its price history could not load.
Emissions
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 | 2.1 | January 1968 |
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 Ketchikan Public Utilities 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 Silvis
More plants operated by Ketchikan Public Utilities
Questions about Silvis
How much power does Silvis produce?
Silvis reported 14,316 MWh (14.3 GWh) of net generation in 2025, a 77.8% capacity factor on 2.1 MW of nameplate capacity.
Where is Silvis?
Silvis is in Ketchikan Gateway, Alaska, at 55.3814, −131.5178.
Who operates Silvis?
EIA-860M for August 2026 lists Ketchikan Public Utilities as the operator (EIA operator ID 10210). The operator is not always the owner.
When did Silvis start operating?
Its first generator began operating in January 1968, according to EIA-860M.
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)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page