PLAINS END II LLC
OperatingNatural Gas power plant
- Capacity
- 118 MW
- Primary fuel
- Natural Gas
- County
- Jefferson County
- Operator
- PLAINS END OPERATING SERVICES LLC
- Status
- Operating
- Commissioned
- 2008
- EIA plant ID
- 56516
- Generators
- 14
- Technology
- Natural Gas Internal Combustion Engine
- Net generation (2024)
- 10.3 GWh
- Capacity factor (2024, EIA nameplate)
- 1%
- Data vintage
- EIA-860 2024 final; EIA-923 2022-2024 final
- Coordinates
- 39.8588, -105.2259
PLAINS END II LLC, a 118 MW Natural Gas power plant in Jefferson County, Colorado. Operated by PLAINS END OPERATING SERVICES LLC, commissioned 2008.
How PLAINS END II LLC compares
With 118 MW of capacity, PLAINS END II LLC ranks 36th among the 114 operating power plants Bywatts maps in Colorado and 14th of the 21 operating Natural Gas plants in the state. It accounts for about 2.1% of Colorado's operating Natural Gas capacity and 0.8% of all operating capacity in the state. Nationally it is the 650th-largest of the 1,185 operating Natural Gas plants in the database. Commissioned in 2008, it is newer than 77% of the 111 operating Colorado plants with a recorded commissioning year. Its operator, PLAINS END OPERATING SERVICES LLC, runs 2 operating plants in Colorado totaling 232 MW. It shares Jefferson County with 6 other operating plants, including PLAINS END and COLORADO ENERGY NATIONS COMPANY.
EIA-860 lists 14 generators at the site with 118 MW of nameplate capacity, all natural gas internal combustion engine technology. Net generation was 10.3 GWh in 2024 (a 1% capacity factor).
Grid neighborhood
The nearest named substation is PLAINS END (230 kV), about 0.2 miles away; the closest transmission line found within 10 miles is a 230 kV line owned by PUBLIC SERVICE CO OF COLORADO, under 0.1 miles away. Another 17 operating power plants totaling 1,511 MW sit within 25 miles; the largest is CHEROKEE (551 MW, Coal). Within 50 miles are 6 mapped data centers; the nearest is Zayo Networks in Louisville, about 8.0 miles away.
Computed by Bywatts from HIFLD power plant, substation and transmission line records, EIA-860/923 survey data and PeeringDB data center locations; distances are straight-line. Sources and methodology
Weather peril exposure
PLAINS END II LLC is a 118 MW natural gas power plant in Jefferson County, CO, operated by PLAINS END OPERATING SERVICES LLC, commissioned in 2008. Jefferson County carries critical modeled catastrophe exposure in the FEMA National Risk Index, scoring 5.0 of 5 at the 99th national percentile. Hail is the leading peril, rated Very High by FEMA at the 99th percentile.
The Bywatts loss layer is calibrated to solar PV hardware, so it is not applied to a natural gas plant. The ratings below are the FEMA National Risk Index county hazard ratings for this location.
Jefferson County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Hail | Very High | 99th | 5.0 of 5 | 6.9 |
| Wildfire | Relatively High | 97th | 4.9 of 5 | <0.01 |
| Winter weather | Very High | 67th | 3.7 of 5 | 18.9 |
| Tornado | Relatively High | 66th | 3.7 of 5 | 0.56 |
| Earthquake | Relatively Low | 47th | 2.9 of 5 | <0.01 |
| Riverine flooding | Relatively High | 27th | 2.1 of 5 | 1.3 |
| Lightning | Very High | 26th | 2.0 of 5 | 57.7 |
| Heat wave | Relatively Low | 26th | 2.0 of 5 | 0.18 |
| Strong wind | Relatively High | 26th | 2.0 of 5 | 0.95 |
| Ice storm | Relatively Moderate | 2nd | 1.1 of 5 | 0.01 |
Perils not assessed in Jefferson 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 |
| Coastal flooding | FEMA rating is "Not Applicable" for this county |
Model hail, wind and flood exposure for Jefferson 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.