Lamar Plant
Prowers County, Colorado · EIA plant ID 508 · Operator: City of Lamar - (CO)
Nameplate8MWSummer 8 MW
Generators4in service
Net generation8GWh12 mo to Dec 2025
Capacity factor17%wind units, summer MW
Heat rate—Btu/kWhfossil units, electric fuel, HHV
First online1946
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), wind 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.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2001 | 65.5 | — | — |
| 2002 | 61.7 | — | — |
| 2003 | 37.2 | — | 12,694 |
| 2004 | 28 | 32.0% | 11,993 |
| 2005 | 18.7 | 36.3% | — |
| 2006 | 17.1 | 35.5% | 14,993 |
| 2007 | 17.1 | 35.5% | — |
| 2008 | 18.1 | 37.5% | — |
| 2009 | 48.1 | 32.7% | 12,122 |
| 2010 | 117.6 | 33.4% | 17,715 |
| 2011 | 70.5 | 25.7% | 27,807 |
| 2012 | 13.3 | 27.4% | — |
| 2013 | 22 | 45.6% | — |
| 2014 | 10.4 | 21.5% | — |
| 2015 | 9.8 | 20.3% | — |
| 2016 | 10.3 | 21.4% | — |
| 2017 | 10.6 | 22.0% | — |
| 2018 | 10.6 | 22.0% | — |
| 2019 | 10 | 20.6% | — |
| 2020 | 13.2 | 27.4% | — |
| 2021 | 12.7 | 26.5% | — |
| 2022 | 12.6 | 26.1% | — |
| 2023 | 11.6 | 24.1% | — |
| 2024 | 12.6 | 26.0% | — |
| 2025 | 8.2 | 17.1% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| IC1 | Petroleum Liquids | IC | 1 | 1 | Jan 1949 | Operating (Out of service) | — | coming soon |
| IC2 | Petroleum Liquids | IC | 1 | 1 | Jan 1946 | Operating (Out of service) | — | coming soon |
| T1-T3 | Onshore Wind Turbine | WT | 4.5 | 4 | Feb 2004 | Operating | — | ge 1.5 XLE |
| T4 | Onshore Wind Turbine | WT | 1.5 | 1.5 | Feb 2004 | Operating | — | ge 1.5 XLE |
| 2 | Natural Gas Steam Turbine | ST | 3 | 3 | Aug 1939 | Retired Jul 1989 | — | coming soon |
| 3 | Natural Gas Steam Turbine | ST | 5 | 6 | Aug 1952 | Retired Jul 1989 | — | coming soon |
| 4 | Conventional Steam Coal | ST | 25 | 25 | Aug 1972 | Retired Nov 2011 | — | coming soon |
| 5 | Natural Gas Fired Combustion Turbine | GT | 4.2 | 4.2 | Feb 2001 | Retired Sep 2014 | — | coming soon |
| 6 | Conventional Steam Coal | ST | 18.5 | 15 | May 2009 | Retired Sep 2014 | — | coming soon |
Owner / operator
Operator: City of Lamar - (CO). Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| City of Lamar - (CO) | 81.3% | 7 MW |
| Arkansas River Power Authority | 18.8% | 2 MW |
Nearby plants
Within 80 km.
| Lamar Solar | — | 4.9 km |
| Twin Buttes II Wind | 75 MW | 29 km |
| Colorado Green Holdings LLC | 162 MW | 37.5 km |
| Holly | 3 MW | 40.7 km |
| Twin Buttes Wind Project | 75 MW | 49.1 km |
| Fort Lyon Solar | — | 52.4 km |