Intrepid
Buena Vista County, Iowa · EIA plant ID 56251 · Operator: MidAmerican Energy Co
Nameplate176MWSummer 176 MW
Generators2in service
Net generation546GWh12 mo to Dec 2025
Capacity factor36%wind units, summer MW
Heat rate—thermal plants only
First online2004
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.
Heat rate applies to fuel-burning (thermal) units only.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2004 | 0.7 | 0.6% | — |
| 2005 | 446.2 | 29.0% | — |
| 2006 | 552.6 | 35.9% | — |
| 2007 | 551.8 | 35.9% | — |
| 2008 | 533.7 | 34.6% | — |
| 2009 | 447.3 | 29.1% | — |
| 2010 | 480.2 | 31.2% | — |
| 2011 | 500.4 | 32.6% | — |
| 2012 | 536.5 | 34.8% | — |
| 2013 | 547 | 35.6% | — |
| 2014 | 537.3 | 34.9% | — |
| 2015 | 403.6 | 25.2% | — |
| 2016 | 419.4 | 27.2% | — |
| 2017 | 354 | 23.0% | — |
| 2018 | 488.2 | 31.8% | — |
| 2019 | 488.2 | 31.8% | — |
| 2020 | 519.6 | 33.7% | — |
| 2021 | 527.2 | 34.3% | — |
| 2022 | 628.6 | 40.9% | — |
| 2023 | 531.4 | 34.6% | — |
| 2024 | 549.4 | 35.6% | — |
| 2025 | 546.4 | 35.5% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| INWF | Onshore Wind Turbine | WT | 160.5 | 160.5 | Dec 2004 | Operating | — | ge 1.5-82.5 |
| INWF2 | Onshore Wind Turbine | WT | 15 | 15 | Dec 2005 | Operating | — | mitsubishi MWT-1000A |
Owner / operator
Operator: MidAmerican Energy Co. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| MidAmerican Energy Co | 100.0% | 176 MW |
Nearby plants
Within 80 km.
| Alta Municipal Utilities | 4 MW | 13.5 km |
| Storm Lake 1 | 114 MW | 16.2 km |
| Richland | 131 MW | 22.8 km |
| Ida Grove Wind | 301 MW | 23.3 km |
| Ida Grove II | 201 MW | 27.4 km |
| Sac County Wind, LLC | 80 MW | 31.1 km |