Prairie Sky Solar Farm
Butler County, Kansas · EIA plant ID 61798 · Operator: Kansas Electric Power Coop Inc
Nameplate1MWSummer 1 MW
Generators1in service
Net generation2GWh12 mo to Dec 2025
Capacity factor20%solar units, summer MW
Heat rate—thermal plants only
First online2017
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), solar 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.
Heat rate applies to fuel-burning (thermal) units only.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2017 | 1.7 | 21.0% | — |
| 2018 | 1.9 | 21.2% | — |
| 2019 | 1.8 | 21.0% | — |
| 2020 | 1.9 | 21.2% | — |
| 2021 | 1.9 | 21.4% | — |
| 2022 | 2 | 22.4% | — |
| 2023 | 1.8 | 20.7% | — |
| 2024 | 1.9 | 21.7% | — |
| 2025 | 1.8 | 20.3% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 1 | Solar Photovoltaic | PV | 1 | 1 | Feb 2017 | Operating | — | coming soon |
Owner / operator
Operator: Kansas Electric Power Coop Inc. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Kansas Electric Power Coop Inc | 100.0% | 1 MW |
Nearby plants
Within 80 km.
| Augusta Electric Plant No 2 | 21 MW | 12.1 km |
| Augusta Electric Plant No 1 | 11 MW | 12.2 km |
| El Dorado Refinery | 39 MW | 17.9 km |
| Mulvane 2 | 9 MW | 31.8 km |
| DeGraff Butler Electric | 1 MW | 32 km |
| Harvey County | 1 MW | 34.4 km |