Where is Harding Street?

In Marion County, Indiana (IN). The map on this page is placed at the coordinates EIA files for the plant, which locate the site rather than any individual unit.

How big is Harding Street?

1 GW of nameplate capacity across 10 units, as of the EIA-860M release for 2026-07.

Who owns Harding Street?

EIA-860M names AES Indiana as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.

Is this the same as Harding Street LLC?

Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — AES Indiana here — not the project company that holds the asset. Project companies are commonly registered as an LLC carrying the plant's name, so a search for "Harding Street LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.

Is Harding Street still running?

EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.

Harding Street

Harding Street is a 1 GW natural gas power plant in Marion County, Indiana, operated by AES Indiana. EIA-860M lists 10 generating units here, inside MISO. Its units entered service between 1958 and 2016.

As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m

Nameplate capacity: 1,064.7 MW; 966 MW net summer
Generating units: 10
In service: 1958–2016
EIA plant ID: 990

Where it is

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County: Marion County, Indiana
Coordinates: 39.7113, -86.1969
Balancing authority: MISO
Sector: Electric Utility

Units, technology and status

Operator of record: AES Indiana
Primary energy source: Natural gas
Technologies: Batteries, Natural Gas Fired Combustion Turbine, Natural Gas Steam Turbine, Petroleum Liquids
Status: Operating

This site runs on more than one energy source. EIA-860M capacity splits: Natural gas 990 MW, Petroleum 55 MW, Battery 20 MW. It is filed here under Natural gas, the source with the most capacity.

Every plant AES Indiana reports to EIA →

Harding Street: FAQ

Where is Harding Street?: In Marion County, Indiana (IN). The map on this page is placed at the coordinates EIA files for the plant, which locate the site rather than any individual unit.
How big is Harding Street?: 1 GW of nameplate capacity across 10 units, as of the EIA-860M release for 2026-07.
Who owns Harding Street?: EIA-860M names AES Indiana as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.
Is this the same as Harding Street LLC?: Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — AES Indiana here — not the project company that holds the asset. Project companies are commonly registered as an LLC carrying the plant's name, so a search for "Harding Street LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Harding Street still running?: EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.