Garden City
Finney County, Kansas · EIA plant ID 1336 · Operator: Sunflower Electric Power Corp
Nameplate256MWSummer 221 MW
Generators4in service
Net generation39GWh12 mo to Dec 2025
Capacity factor2%gas/coal/oil units, summer MW
Heat rate14,871Btu/kWhfossil units, electric fuel, HHV
First online1968Runs as peaking
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), gas/coal/oil 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 | 150.4 | — | — |
| 2002 | 153.4 | — | — |
| 2003 | 87.1 | 4.2% | 10,162 |
| 2004 | 36.1 | 1.8% | 11,468 |
| 2005 | 32.5 | 1.6% | 12,226 |
| 2006 | 115.1 | 5.8% | 10,980 |
| 2007 | 48.4 | 2.5% | 12,929 |
| 2008 | 75.6 | 3.8% | 12,177 |
| 2009 | 65.6 | 3.3% | 12,685 |
| 2010 | 57.9 | 2.9% | 13,204 |
| 2011 | 69.8 | 3.5% | 13,286 |
| 2012 | 120.4 | 5.9% | 13,074 |
| 2013 | 53.7 | 2.7% | 14,281 |
| 2014 | 30.8 | 1.7% | 17,894 |
| 2015 | 100.5 | 5.5% | 13,607 |
| 2016 | 4.4 | 0.2% | 23,374 |
| 2017 | 38.2 | 2.1% | 14,975 |
| 2018 | 40.6 | 2.3% | 14,054 |
| 2019 | 74.5 | 4.2% | 13,572 |
| 2020 | 8.8 | 0.4% | 19,001 |
| 2021 | 11.4 | 0.6% | 19,698 |
| 2022 | 28.5 | 1.5% | 16,165 |
| 2023 | 79.5 | 4.1% | 13,440 |
| 2024 | 68.2 | 3.5% | 13,687 |
| 2025 | 38.7 | 2.0% | 14,871 |
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 |
|---|---|---|---|---|---|---|---|---|
| S2 | Natural Gas Steam Turbine | ST | 97.9 | 97.3 | Apr 1973 | Operating | — | coming soon |
| S3 | Natural Gas Fired Combustion Turbine | GT | 16 | 12.8 | Jun 1968 | Operating (Standby / backup) | — | coming soon |
| S4 | Natural Gas Fired Combustion Turbine | GT | 71.2 | 58.4 | May 1976 | Operating | — | coming soon |
| S5 | Natural Gas Fired Combustion Turbine | GT | 71.2 | 52 | Jul 1979 | Operating | — | coming soon |
| GC3 | Natural Gas Steam Turbine | ST | 11.5 | 8.7 | May 1962 | Retired Dec 2013 | — | coming soon |
Owner / operator
Operator: Sunflower Electric Power Corp. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Sunflower Electric Power Corp | 100.0% | 256 MW |
Nearby plants
Within 80 km.
| Bonanza BioEnergy LLC | 2 MW | 5.4 km |
| Jameson Energy Center | 28 MW | 6 km |
| Holcomb | 349 MW | 8 km |
| Buffalo Dunes Wind Project | 250 MW | 42 km |
| Cimarron Windpower II | 131 MW | 46.6 km |
| Rubart | 120 MW | 49.2 km |