# AES Petersburg

MISO asset profile · https://askthegrid.com/assets/facilities/aes-petersburg

AES Indiana - Pike County - MISO

AES Petersburg (Petersburg Generating Station) is a 1,349.9 MW power plant on the White River in Pike County, Indiana, about 120 miles southwest of Indianapolis. It is owned and operated by AES Indiana (formerly Indianapolis Power & Light Co.), a subsidiary of The AES Corporation. The plant's current fleet consists of two large coal-fired steam units, in service since 1977 and 1986, plus three small 2.7 MW oil-fired peaking units dating to 1967. AES Indiana projects the switch will save customers about $281 million over 20 years and make it the first Indiana investor-owned utility to fully exit coal. Two older coal units at the site (Units 1 and 2, dating to the 1960s) were already retired in 2021 and 2023 and no longer appear in the operating fleet. The plant settles into MISO at the IPL.16PETEE4 node.

## Metrics

- **Nameplate capacity:** 1349.9 MW — Canonical EIA plant baseline.
- **Registry anchor:** Plant 994 — plant-994

## Facts

- **Technology:** Petroleum Liquids, Conventional Steam Coal
- **Operator:** AES Indiana

## Related parties

- **Owner / operator:** AES Indiana — Owner and operator ([source](https://www.aesindiana.com/))
- **Parent company:** IPALCO Enterprises, Inc. — Direct parent of AES Indiana
- **Parent company / acquirer:** The AES Corporation — Ultimate parent; acquired IPALCO in 2001 ([source](https://www.aes.com/))
- **Investor:** La Caisse de dépôt et placement du Québec (CDPQ) — Minority investor in IPALCO
- **EPC contractor / construction contractor / equipment supplier:** The Babcock & Wilcox Company — EPC contractor ([source](https://www.babcock.com/))
- **Construction contractor / fuel supplier:** Midwestern Gas Transmission Company (MGT) — Gas-lateral facilities contractor
- **Balancing authority / market operator:** Midcontinent Independent System Operator, Inc. (MISO) — Balancing authority and market operator ([source](https://www.misoenergy.org/))
- **Transmission owner:** AES Indiana Transmission — Transmission owner

## Sources

- [iurc.portal.in.gov](https://iurc.portal.in.gov/_entity/sharepointdocumentlocation/092f2026-f849-ef11-a316-001dd803817e/bb9c6bba-fd52-45ad-8e64-a444aef13c39?file=46022_AES%20IN_Direct%20Testimony%20Bigalbal%20w-Revised%20Pages_072424.pdf) — iurc.portal.in.gov · authoritative — Source retained for exact-record publication review.
- [iurc.portal.in.gov](https://iurc.portal.in.gov/_entity/sharepointdocumentlocation/86800836-87e0-ee11-904d-001dd80b3def/bb9c6bba-fd52-45ad-8e64-a444aef13c39?file=AES%20IN_Petition_031124%20(1).pdf) — iurc.portal.in.gov · authoritative — Source retained for exact-record publication review.
- [iurc.portal.in.gov](https://iurc.portal.in.gov/_entity/sharepointdocumentlocation/97b6e933-ace1-ec11-a7b4-001dd8033163/bb9c6bba-fd52-45ad-8e64-a444aef13c39?file=AES%20IN_Verified%20Petition_053122.pdf) — iurc.portal.in.gov · authoritative — Source retained for exact-record publication review.
- [mbrweb.ferc.gov](https://mbrweb.ferc.gov/SearchMBRAssetAppendix/AssetAppendixDetails?AssetAppendixId=1734) — mbrweb.ferc.gov · authoritative — Source retained for exact-record publication review.
- [aesindiana.com](https://www.aesindiana.com/petersburg-generating-station) — aesindiana.com · public_source — Source retained for exact-record publication review.

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Canonical page: https://askthegrid.com/assets/facilities/aes-petersburg
Website: [AES Indiana (The AES Corporation)](https://www.aesindiana.com/)

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