Cimarron River
Natural gas power plant in Seward County, Kansas. 50 MW of nameplate capacity across 1 generator, operated by Sunflower Electric Power Corp.
Also known as Cimarron River Power Plant · EIA plant 1230
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 50 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- October 1963First generator online
- Operator
- Sunflower Electric Power CorpEIA operator ID 18315
- Grid
- SPPBalancing authority SWPP
- Price nodes
- 1 SPP nodeResource nodes with prices
- Location
- Seward County, KS37.1611, −100.7619
- EIA plant ID
- 1230EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Cimarron River produces
Free · EIA-923Net generation, 2025
30.3 GWh
30,326 MWh, final
Capacity factor, 2025
5.3%
2024: 10.1%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
0.5–57.7
GWh a year. Low 2020, high 2024
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 102,162 | Not reported | 12 of 12 |
| 2001 | 73,266 | Not reported | 12 of 12 |
| 2002 | 104,370 | Not reported | 12 of 12 |
| 2003 | 79,876 | Not reported | 10 of 12 |
| 2004 | 55,600 | Not reported | 12 of 12 |
| 2005 | 100,843 | Not reported | 12 of 12 |
| 2006 | 139,252 | Not reported | 12 of 12 |
| 2007 | 123,685 | Not reported | 12 of 12 |
| 2008 | 69,619 | Not reported | 12 of 12 |
| 2009 | 107,442 | Not reported | 12 of 12 |
| 2010 | 63,368 | 11.1% | 12 of 12 |
| 2011 | 75,790 | 13.3% | 12 of 12 |
| 2012 | 182,935 | 32.0% | 12 of 12 |
| 2013 | 128,678 | 22.6% | 12 of 12 |
| 2014 | 29,818 | 5.2% | 12 of 12 |
| 2015 | 927 | 0.2% | 12 of 12 |
| 2016 | 939 | 0.2% | 12 of 12 |
| 2017 | 1,114 | 0.2% | 12 of 12 |
| 2018 | 621 | 0.1% | 12 of 12 |
| 2019 | 703 | 0.1% | 12 of 12 |
| 2020 | 456 | 0.1% | 12 of 12 |
| 2021 | 554 | 0.1% | 12 of 12 |
| 2022 | 4,578 | 0.8% | 12 of 12 |
| 2023 | 25,768 | 4.5% | 12 of 12 |
| 2024 | 57,695 | 10.1% | 12 of 12 |
| 2025 | 30,326 | 5.3% | 12 of 12 |
| 2026 (provisional, partial year) | Not reported | Not reported | 0 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free account · SPPEmissions
Free · EPA CAMPDCO₂, 2025
24,167
US short tons. 2024: 45,028
SO₂, 2025
0
US short tons
NOx, 2025
38
US short tons
CO₂ per MWh, calculated
0.80 t
About 1,594 lb per MWh
1 of 1 EPA units reported CO₂ in 2025 (1), matched to EIA plant 1230 through the EPA–EIA crosswalk. The per-MWh rate is EPA CO₂ divided by EIA-923 net generation. The two reporting boundaries can differ.
Water use
Free · EIA-923 cooling, USGSNo EIA cooling-water record for this plant in 2024.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| 1 | Natural Gas Steam Turbine | 50.0 | October 1963 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Sunflower Electric Power Corp as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
Generation potential vs reported
Monthly potential at seasonal net capability, next to EIA-923 output. Shows how much of the plant's capability was used.
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Power plants near Cimarron River
More plants operated by Sunflower Electric Power Corp
Questions about Cimarron River
How much power does Cimarron River produce?
Cimarron River reported 30,326 MWh (30.3 GWh) of net generation in 2025, a 5.3% capacity factor on 50 MW of nameplate capacity.
Where is Cimarron River?
Cimarron River is in Seward County, Kansas, at 37.1611, −100.7619. It is in the Southwest Power Pool balancing area (SWPP).
Who operates Cimarron River?
EIA-860M for August 2026 lists Sunflower Electric Power Corp as the operator (EIA operator ID 18315). The operator is not always the owner.
When did Cimarron River start operating?
Its first generator began operating in October 1963, according to EIA-860M.
Does InfraMap have power prices for Cimarron River?
Yes. InfraMap has SPP day-ahead and real-time prices at 1 price node linked to Cimarron River, with the hub price and node-to-hub basis. Prices are free with an InfraMap account; pricing node names are part of InfraMap Pro.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
- EPA CAMPD annual emissions through the EPA–EIA crosswalk, 1995 to 2025
- SPP day-ahead and real-time prices; node and hub assignments as of 2026-10-05
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page