PowerPlantFactsEvidence report · prepared 2 September 2026https://powerplantfacts.com/entity/50228
EIA plant 50228
Brinnon · Jefferson · WA
Rocky Brook Hydroelectric
Operated by Rocky Brook Electric Inc
Published location
Where is Rocky Brook Hydroelectric?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
47.719700, -122.943100
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Capacity is not generation. Nameplate MW describes equipment; annual MWh describes recorded output. Proposed and retired units are not added to operating capacity.
2024 monthly net generation
| Month | Net generation |
|---|---|
| 1 | 99 MWh |
| 2 | 97 MWh |
| 3 | 106 MWh |
| 4 | 103 MWh |
| 5 | 26 MWh |
| 6 | 0 MWh |
| 7 | 0 MWh |
| 8 | 0 MWh |
| 9 | 0 MWh |
| 10 | 0 MWh |
| 11 | 61 MWh |
| 12 | 48 MWh |
Operating generators
| ID | Technology | Fuel | MW | Status |
|---|---|---|---|---|
| GEN1 | Conventional Hydroelectric | WAT | 1.6 | SB |
Continue exploring
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Identity, technology and limitations
EIA plant ID
50228
Sector
IPP Non-CHP
Water source
Dosewallips River
Data edition
2024-final