Calligan Creek Hydroelectric Project
Hydro power plant in King County, Washington. 6 MW of nameplate capacity across 1 generator, operated by PUD No 1 of Snohomish County - (WA).
Also known as EIA plant 60418
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 6 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- February 2018First generator online
- Operator
- PUD No 1 of Snohomish County - (WA)EIA operator ID 17470
- Grid
- PSEIBalancing authority PSEI
- Price nodes
- None linkedNo verified ISO node
- Location
- King County, WA47.6008, −121.6886
- EIA plant ID
- 60418EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Calligan Creek Hydroelectric Project produces
Free · EIA-923Net generation, 2025
12.6 GWh
12,649 MWh, final
Capacity factor, 2025
24.1%
2024: 32.6%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2017 to 2025
0.0–19.5
GWh a year. Low 2017, high 2021
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | Not reported | Not reported | 0 of 12 |
| 2001 | Not reported | Not reported | 0 of 12 |
| 2002 | Not reported | Not reported | 0 of 12 |
| 2003 | Not reported | Not reported | 0 of 12 |
| 2004 | Not reported | Not reported | 0 of 12 |
| 2005 | Not reported | Not reported | 0 of 12 |
| 2006 | Not reported | Not reported | 0 of 12 |
| 2007 | Not reported | Not reported | 0 of 12 |
| 2008 | Not reported | Not reported | 0 of 12 |
| 2009 | Not reported | Not reported | 0 of 12 |
| 2010 | Not reported | Not reported | 0 of 12 |
| 2011 | Not reported | Not reported | 0 of 12 |
| 2012 | Not reported | Not reported | 0 of 12 |
| 2013 | Not reported | Not reported | 0 of 12 |
| 2014 | Not reported | Not reported | 0 of 12 |
| 2015 | Not reported | Not reported | 0 of 12 |
| 2016 | Not reported | Not reported | 0 of 12 |
| 2017 | 0 | Not reported | 12 of 12 |
| 2018 | 11,696 | Not reported | 11 of 12 |
| 2019 | 10,998 | 20.9% | 12 of 12 |
| 2020 | 19,264 | 36.6% | 12 of 12 |
| 2021 | 19,481 | 37.1% | 12 of 12 |
| 2022 | 3,893 | 7.4% | 12 of 12 |
| 2023 | 9,398 | Not reported | 12 of 12 |
| 2024 | 17,156 | 32.6% | 12 of 12 |
| 2025 | 12,649 | 24.1% | 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 |
|---|---|---|---|
| CC6MW | Conventional Hydroelectric | 6.0 | February 2018 |
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 PUD No 1 of Snohomish County - (WA) as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
300 analyst questions a month, plus MCP
Query Calligan Creek Hydroelectric Project and 14,224 other projects from Claude or your own tools. Free accounts get 1 question a day.
Power plants near Calligan Creek Hydroelectric Project
More plants operated by PUD No 1 of Snohomish County - (WA)
Questions about Calligan Creek Hydroelectric Project
How much power does Calligan Creek Hydroelectric Project produce?
Calligan Creek Hydroelectric Project reported 12,649 MWh (12.6 GWh) of net generation in 2025, a 24.1% capacity factor on 6 MW of nameplate capacity.
Where is Calligan Creek Hydroelectric Project?
Calligan Creek Hydroelectric Project is in King County, Washington, at 47.6008, −121.6886. It is in the Puget Sound Energy balancing area (PSEI).
Who operates Calligan Creek Hydroelectric Project?
EIA-860M for August 2026 lists PUD No 1 of Snohomish County - (WA) as the operator (EIA operator ID 17470). The operator is not always the owner.
When did Calligan Creek Hydroelectric Project start operating?
Its first generator began operating in February 2018, 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