# Prairie Creek

MISO asset profile · https://askthegrid.com/assets/facilities/prairie-creek

## Current generation inventory

EIA plant 1073 · Inventory reporting month: 2026-08.

- coal: 50 MW operating nameplate
- natural gas: 148.8 MW operating nameplate
- Capacity basis: operating_generator_nameplate_mw
- Source inventory: [EIA-860M workbook (preliminary)](https://www.eia.gov/electricity/data/eia860m/xls/august_generator2026.xlsx)
- Inventory retrieved: 2026-10-10T22:49:53.020309+00:00
- Filed coordinate (longitude, latitude): -91.63917, 41.944039
- OSM extract: 2026-10-09T20:21:04Z
- OSM mapped edit: 2026-02-07 22:23:59+00:00
- Map prepared: 2026-10-10T23:05:25.969513+00:00

Battery power (MW) and stored energy (MWh) are separate measures. Shared physical-site membership does not establish electrical connectivity, settlement or a common export limit.

## Reviewed overview

Prairie Creek Generating Station is Alliant Energy's plant at 3300 C St. SW in Cedar Rapids, Iowa. It ended coal burning on December 31, 2025. Units 1 and 2 are retired, Unit 3 (50 MW) is converting to natural gas, and Unit 4 (148.8 MW) continues on gas. A new 94 MW Cedar River Generating Station of five gas-fired engines is planned on the site for June 2027.

## Reviewed metrics

- **Nameplate capacity:** 198.8 MW — Canonical EIA plant baseline.
- **Registry anchor:** Plant 1073 — plant-1073

## Facts

- **Technology:** Natural Gas Steam Turbine, Conventional Steam Coal
- **Operator:** Alliant Energy
- **Operating status:** Operating

## Related parties

- **Owner / operator:** Alliant Energy — owner ([source](https://www.alliantenergy.com))
- **Affiliate:** Interstate Power and Light — affiliate ([source](https://www.alliantenergy.com))

## Sources

- [corridorbusiness.com](https://corridorbusiness.com/alliant-plans-for-natural-gas-fired-power-plant-at-prairie-creek-moving-forward/) — corridorbusiness.com · public_source — Source retained for exact-record publication review.

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Canonical page: https://askthegrid.com/assets/facilities/prairie-creek
Website: [Alliant Energy](https://www.alliantenergy.com)

Source: Ask the Grid — https://askthegrid.com/