# Harding Street

MISO asset profile · https://askthegrid.com/assets/facilities/harding-street

AES Indiana - Marion County - MISO

Harding Street Station, EIA plant 990, is a 1,064.7 MW electric generating facility located at 3700 South Harding Street, Indianapolis, Marion County, Indiana, operated by AES Indiana (Indianapolis Power & Light Company d/b/a AES Indiana) in the MISO region. The station comprises ten operating generators: three natural-gas-fired steam turbines (Units 5, 6, 7; 100, 100, and 463 MW respectively), five combustion turbines and one internal-combustion unit operating on natural gas and/or distillate fuel oil (GT1, GT2, GT4, GT5, GT6, IC1; 26, 26, 83, 83, 161, and 2.7 MW respectively), and one 20 MW lithium-ion battery energy storage system (BAT1). Units 5, 6, and 7 were converted from coal to natural gas between December 2015 and Q2 2016.

## Metrics

- **Nameplate capacity:** 1064.7 MW — Canonical EIA plant baseline.
- **Registry anchor:** Plant 990 — plant-990

## Facts

- **Technology:** Natural Gas Fired Combustion Turbine, Natural Gas Steam Turbine, Batteries, Petroleum Liquids
- **Operator:** AES Indiana

## Related parties

- **Owner / operator:** AES Indiana — Owner and operator of Harding Street Station ([source](https://www.aesindiana.com/))
- **Parent company:** IPALCO Enterprises, Inc. — Immediate parent company of AES Indiana ([source](https://www.aesindiana.com/financial-statements))
- **Balancing authority / market operator:** Midcontinent Independent System Operator, Inc. (MISO) — Balancing authority and market operator for Harding Street ([source](https://www.misoenergy.org/))
- **Equipment supplier:** Samsung SDI — Lithium-ion battery supplier for Harding Street Advancion array ([source](https://www.samsungsdi.com/))
- **Equipment supplier:** Parker Hannifin — Power-conversion and inverter supplier for Harding Street Advancion array ([source](https://www.parker.com/))

## Sources

- [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.
- [aes.com](https://www.aes.com/investors/investor-resources/faqs) — aes.com · public_source — Source retained for exact-record publication review.
- [aesindiana.com](https://www.aesindiana.com/energy-storage) — aesindiana.com · public_source — Source retained for exact-record publication review.
- [aesindiana.com](https://www.aesindiana.com/harding-street-station) — aesindiana.com · public_source — Source retained for exact-record publication review.

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Canonical page: https://askthegrid.com/assets/facilities/harding-street
Website: [AES Indiana](https://www.aesindiana.com/)

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