# Wilkes

SPP asset profile · https://askthegrid.com/assets/facilities/wilkes

## Current generation inventory

EIA plant 3478 · Inventory reporting month: 2026-08.

- natural gas: 882 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): -94.54799, 32.848163
- OSM extract: 2026-10-08T20:21:06Z
- OSM mapped edit: 2022-08-12 01:06:52+00:00
- Map prepared: 2026-10-10T02:28:23.520330+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

Wilkes Power Plant is a three-unit, 889 MW natural gas-fueled plant at Avinger in Marion County, Texas, in the Southwestern Electric Power Company fleet. SWEPCO is an American Electric Power company. SWEPCO describes Wilkes and Welsh as Texas power plants that anchored its generation capacity for decades.

## Reviewed metrics

- **Nameplate capacity:** 882 MW — Canonical EIA plant baseline.
- **Registry anchor:** Plant 3478 — plant-3478

## Facts

- **Technology:** Natural Gas Steam Turbine
- **Operator:** Southwestern Electric Power Company

## Related parties

- **Owner / operator:** Southwestern Electric Power Company — owner ([source](https://www.swepco.com))
- **Parent company:** American Electric Power — parent_company ([source](https://www.aep.com))

## Sources

- [eagleobserver.com](https://www.eagleobserver.com/news/2019/jan/30/swepco-names-managers-at-flint-creek-we/) — eagleobserver.com · public_source — Source retained for exact-record publication review.
- [swepco.com](https://www.swepco.com/lib/docs/community/projects/SWEPCO%20Generation_2%20July%202019.pdf) — swepco.com · public_source — Source retained for exact-record publication review.

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Canonical page: https://askthegrid.com/assets/facilities/wilkes
Website: [Southwestern Electric Power Company](https://www.swepco.com)

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