COLCHESTER 16
OperatingOil power plant
- Capacity
- 18 MW
- Primary fuel
- Oil
- County
- Chittenden County
- Operator
- GREEN MOUNTAIN POWER CORP
- Status
- Operating
- Commissioned
- 1965
- EIA plant ID
- 3735
- Coordinates
- 44.4905, -73.1719
COLCHESTER 16, an 18 MW Oil power plant in Chittenden County, Vermont. Operated by GREEN MOUNTAIN POWER CORP, commissioned 1965.
Weather peril exposure
COLCHESTER 16 is an 18 MW oil power plant in Chittenden County, VT, operated by GREEN MOUNTAIN POWER CORP, commissioned in 1965. Chittenden County carries low modeled catastrophe exposure in the FEMA National Risk Index, scoring 1.0 of 5 at the 1st national percentile. Lightning is the leading peril, rated Relatively High by FEMA at the 67th percentile.
The Bywatts loss layer is calibrated to solar PV hardware, so it is not applied to an oil plant. The ratings below are the FEMA National Risk Index county hazard ratings for this location.
Chittenden County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Lightning | Relatively High | 67th | 3.7 of 5 | 23.0 |
| Ice storm | Relatively Moderate | 66th | 3.7 of 5 | 0.33 |
| Earthquake | Relatively Low | 65th | 3.6 of 5 | <0.01 |
| Winter weather | Relatively Moderate | 62nd | 3.5 of 5 | 16.9 |
| Hurricane | Relatively Low | 57th | 3.3 of 5 | 0.03 |
| Strong wind | Relatively Moderate | 37th | 2.5 of 5 | 0.78 |
| Riverine flooding | Relatively Moderate | 35th | 2.4 of 5 | 2.1 |
| Wildfire | Very Low | 22nd | 1.9 of 5 | <0.01 |
| Tornado | Relatively Low | 11th | 1.5 of 5 | 0.03 |
| Heat wave | Relatively Low | 5th | 1.2 of 5 | 2.1 |
| Hail | Very Low | 5th | 1.2 of 5 | 1.1 |
Perils not assessed in Chittenden 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 |
|---|---|
| Coastal flooding | FEMA rating is "Not Applicable" for this county |
Model hail, wind and flood exposure for Chittenden 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.