← Back to map

Rubart

Grant County, Kansas · EIA plant ID 58255 · Operator: Sunflower Electric Power Corp
Natural gasNatural Gas Internal Combustion EngineSPPBA: SWPP
📍 Open in Google Maps
Nameplate120MWSummer 106 MW
Generators12in service
Net generation37GWh12 mo to Dec 2025
Capacity factor4%gas/coal/oil units, summer MW
Heat rate10,753Btu/kWhfossil units, electric fuel, HHV
First online2014Runs as peaking

Monthly net generation

EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
0510GWh20152016201720182019202020212022202320242025

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.
0%5%10%15%20142016201820202022202420264.0% · 12 mo

Heat rate by year

Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
9,00010,00011,00012,000201420162018202020222024202610,753 Btu/kWh · 12 mo
Annual data table
YearNet GWhCapacity factorHeat rate (Btu/kWh)
201492.9%10,393
201540.14.2%10,113
201637.43.9%10,602
201731.43.6%10,637
201825.62.9%10,582
201923.12.6%9,995
202016.91.8%11,924
202151.85.5%10,209
202213114.1%9,745
202370.37.5%9,527
202440.94.4%10,223
202537.34.0%10,753

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 IDTechnologyPrime moverNameplate MWSummer MWOnlineStatusPlanned retirementOEM / model
1Natural Gas Internal Combustion EngineIC108.8Sep 2014Operating—coming soon
10Natural Gas Internal Combustion EngineIC109Sep 2014Operating—coming soon
11Natural Gas Internal Combustion EngineIC109Sep 2014Operating—coming soon
12Natural Gas Internal Combustion EngineIC109Sep 2014Operating—coming soon
2Natural Gas Internal Combustion EngineIC108.9Sep 2014Operating—coming soon
3Natural Gas Internal Combustion EngineIC108.7Sep 2014Operating—coming soon
4Natural Gas Internal Combustion EngineIC109Sep 2014Operating—coming soon
5Natural Gas Internal Combustion EngineIC108.6Sep 2014Operating—coming soon
6Natural Gas Internal Combustion EngineIC108.8Sep 2014Operating—coming soon
7Natural Gas Internal Combustion EngineIC108.8Sep 2014Operating—coming soon
8Natural Gas Internal Combustion EngineIC108.9Sep 2014Operating—coming soon
9Natural Gas Internal Combustion EngineIC108.9Sep 2014Operating—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 Corp100.0%120 MW

Nearby plants

Within 80 km.
Buffalo Dunes Wind Project250 MW7.2 km
Holcomb349 MW42.9 km
Hugoton 219 MW48.7 km
Garden City256 MW49.2 km
Jameson Energy Center28 MW50 km
Bonanza BioEnergy LLC2 MW50.1 km