Blue Lake Hydro
Sitka County, Alaska · EIA plant ID 93 · Operator: City & Borough of Sitka - (AK)
Nameplate16MWSummer 16 MW
Generators3in service
Net generation81GWh12 mo to Dec 2025
Capacity factor58%hydro units, summer MW
Heat rate—thermal plants only
First online2014
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), hydro units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Heat rate applies to fuel-burning (thermal) units only.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2001 | 45.5 | 86.5% | — |
| 2002 | 0 | 0.1% | — |
| 2003 | 49.2 | 93.7% | — |
| 2004 | 44.6 | 84.5% | — |
| 2005 | 39.6 | 75.3% | — |
| 2006 | 44.9 | 85.4% | — |
| 2007 | 52.9 | 100.6% | — |
| 2008 | 55.8 | 105.8% | — |
| 2009 | 58.4 | 111.1% | — |
| 2010 | 58.4 | 111.1% | — |
| 2011 | 56.2 | 106.8% | — |
| 2012 | 55.7 | 90.5% | — |
| 2013 | 52.5 | 85.6% | — |
| 2014 | 40.7 | 57.6% | — |
| 2015 | 59.5 | 42.7% | — |
| 2016 | 69 | 49.4% | — |
| 2017 | 59 | 42.4% | — |
| 2018 | 56.2 | 40.3% | — |
| 2019 | 59.5 | 42.7% | — |
| 2021 | 77.8 | 55.9% | — |
| 2022 | 73.1 | 52.5% | — |
| 2023 | 80.3 | 57.6% | — |
| 2024 | 75.4 | 54.0% | — |
| 2025 | 80.9 | 58.1% | — |
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| 3 | Conventional Hydroelectric | HY | 5.3 | 5.3 | Oct 2014 | Operating | — | coming soon |
| 4 | Conventional Hydroelectric | HY | 5.3 | 5.3 | Oct 2014 | Operating | — | coming soon |
| 5 | Conventional Hydroelectric | HY | 5.3 | 5.3 | Oct 2014 | Operating | — | coming soon |
| 1 | Conventional Hydroelectric | HY | 3.5 | 3.5 | Jun 1961 | Retired Aug 2014 | — | coming soon |
| 2 | Conventional Hydroelectric | HY | 3.5 | 3.5 | Jun 1961 | Retired Aug 2014 | — | coming soon |
Owner / operator
Operator: City & Borough of Sitka - (AK). Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| City & Borough of Sitka - (AK) | 100.0% | 16 MW |
Nearby plants
Within 80 km.
| Jarvis Street | 26 MW | 5 km |
| Green Lake | 19 MW | 9.7 km |
| Angoon | 2 MW | 63 km |