# Louisa

MISO asset profile · https://askthegrid.com/assets/facilities/louisa

## Current generation inventory

EIA plant 6664 · Inventory reporting month: 2026-08.

- coal: 811.9 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: 2026-10-10T02:12:40.665346+00:00
- Filed coordinate (longitude, latitude): -91.0931, 41.3181
- OSM extract: 2026-10-08T20:21:06Z
- OSM mapped edit: 2023-01-25 04:37:37+00:00
- Map prepared: 2026-10-10T02:28:23.853458+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

Louisa Generating Station is a coal-fired plant near Muscatine, Iowa, operated by MidAmerican Energy, with production beginning in 1983. The plant has dry scrubbers, and an Iowa regional haze revision proposed in 2023 would require improvements expected to cut about 3,900 tons of sulfur dioxide emissions a year.

## Reviewed metrics

- **Nameplate capacity:** 811.9 MW — Canonical EIA plant baseline.
- **Registry anchor:** Plant 6664 — plant-6664

## Facts

- **Technology:** Conventional Steam Coal
- **Operator:** MidAmerican Energy
- **Operating status:** Operating

## Related parties

- **Owner / operator:** MidAmerican Energy — operator ([source](https://www.midamericanenergy.com))

## Sources

- [cipco.net](https://www.cipco.net/cwb-entitypins/render/node:73/node_73) — cipco.net · public_source — Source retained for exact-record publication review.

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Canonical page: https://askthegrid.com/assets/facilities/louisa
Website: [MidAmerican Energy](https://www.midamericanenergy.com)

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