SKOOKUMCHUCK
OperatingPower plant
- Capacity
- 1 MW
- County
- Thurston County
- Operator
- TRANSALTA CENTRALIA GEN LLC
- Status
- Operating
- Commissioned
- 1990
- EIA plant ID
- 7259
- Coordinates
- 46.7844, -122.7196
SKOOKUMCHUCK, a 1 MW power plant in Thurston County, Washington. Operated by TRANSALTA CENTRALIA GEN LLC, commissioned 1990.
Weather peril exposure
SKOOKUMCHUCK is a 1 MW power plant in Thurston County, WA, operated by TRANSALTA CENTRALIA GEN LLC, commissioned in 1990. Thurston County carries low modeled catastrophe exposure in the FEMA National Risk Index, scoring 1.2 of 5 at the 5th national percentile. Earthquake is the leading peril, rated Relatively High by FEMA at the 98th percentile.
The Bywatts loss layer is calibrated to solar PV hardware, so it is not applied to this plant. The ratings below are the FEMA National Risk Index county hazard ratings for this location.
Thurston County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Earthquake | Relatively High | 98th | 4.9 of 5 | 0.03 |
| Coastal flooding | Relatively Low | 61st | 3.4 of 5 | 3.1 |
| Heat wave | Relatively Moderate | 61st | 3.4 of 5 | 4.3 |
| Riverine flooding | Relatively Moderate | 44th | 2.7 of 5 | 0.14 |
| Wildfire | Very Low | 29th | 2.1 of 5 | <0.01 |
| Ice storm | Relatively Moderate | 16th | 1.7 of 5 | 0.63 |
| Winter weather | Relatively Low | 14th | 1.5 of 5 | 6.1 |
| Strong wind | Relatively Low | 12th | 1.5 of 5 | 0.01 |
| Tornado | Very Low | 6th | 1.3 of 5 | 0.04 |
| Lightning | Relatively Low | 4th | 1.2 of 5 | 6.7 |
| Hail | Very Low | 4th | 1.2 of 5 | 0.01 |
Perils not assessed in Thurston County
These perils carry no usable National Risk Index figure for this county, so they are excluded from the scoring rather than scored zero. A zero would claim the peril was assessed and found benign.
| Peril | Why it is not scored |
|---|---|
| Hurricane | FEMA rating is "Not Applicable" for this county |
Model hail, wind and flood exposure for Thurston County in the weather risk calculator
Ratings are the FEMA National Risk Index county hazard ratings; the peril score is a Bywatts transform of the FEMA national percentile. Full data sources and the solar vulnerability methodology are in the weather risk calculator.
Modeled estimate for screening and negotiation. Built from FEMA National Risk Index county hazard data and a solar vulnerability layer documented above. Not a quote, a binder, or actuarial advice, and not a substitute for a carrier's own model. Hazard data: FEMA National Risk Index December 2025, synced 2026-07-24. Resolution is county level, not site level.