# Washington Parish Energy Center

MISO asset profile · https://askthegrid.com/assets/facilities/washington-parish-energy-center

## Current generation inventory

EIA plant 55486 · Inventory reporting month: 2026-08.

- natural gas: 399.6 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): -89.90917, 30.791389
- OSM extract: 2026-10-08T20:21:06Z
- OSM mapped edit: 2023-05-21 07:04:29+00:00
- Map prepared: 2026-10-10T02:28:19.481866+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

Washington Parish Energy Center is an approximately 361 MW natural gas-fired peaking plant near Bogalusa, Louisiana, with two combustion turbines. A Calpine subsidiary built it on the site of a generation project Calpine put on permanent hold in 2006, and Entergy Louisiana completed its purchase on November 24, 2020, for approximately $261 million. It gives Entergy Louisiana quick-start peaking and reserve capacity.

## Reviewed metrics

- **Nameplate capacity:** 399.6 MW — Canonical EIA plant baseline.
- **Registry anchor:** Plant 55486 — plant-55486

## Facts

- **Technology:** Natural Gas Fired Combustion Turbine
- **Operator:** Entergy Louisiana LLC

## Related parties

- **Owner / acquirer:** Entergy Louisiana, LLC — owner ([source](https://www.entergy.com))

## Sources

- [prnewswire.com](https://www.prnewswire.com/news-releases/entergy-louisiana-acquires-washington-parish-energy-center-301180110.html) — prnewswire.com · public_source — Source retained for exact-record publication review.

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Canonical page: https://askthegrid.com/assets/facilities/washington-parish-energy-center
Website: [Entergy Louisiana, LLC](https://www.entergy.com)

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