Power plant · Indiana, United States
Mammoth South Solar Project
Mammoth South Solar Project is a power plant under construction in Indiana, United States, with 300 MW of capacity, owned by Mammoth South LLC.
Facts
Every value links to its source, and to the source's own record where it has one. Licences and last-checked dates are per row.
| Fact | Value | Source |
|---|---|---|
| Location | Indiana | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Status | Under construction | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Start year | 2026 | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Owner | Mammoth South LLC | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Operator | Mammoth South LLC | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Capacity | 300 MW | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Technology | Solar Photovoltaic | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Coordinates | 41.0953, -86.6916 | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
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How it compares
Mammoth South Solar Project is the 3rd-largest of 26 power plants planned, permitted or under construction in Indiana and the 231st-largest of 835 in the United States by capacity; its 300 MW is 0.11% of the 282,375 MW of power plants planned, permitted or under construction we hold for the United States. It is not built yet, so it is ranked among the power plants planned, permitted or under construction in our data, apart from the ones running today. Ranks and totals cover the ones that report their capacity.
| Within | Rank | Total | Share |
|---|---|---|---|
| Indiana | 3rd of 26 | 5,848 MW | 5.1% |
| United States | 231st of 835 | 282,375 MW | 0.11% |
| All power plants planned, permitted or under construction in our data | 264th of 3,008 | 360,526 MW | <0.1% |
Owner, operator and place
Other power plants in Indiana
- Gibson3,340 MW
- Rockport2,600 MW
- AES Petersburg1,350 MW
- Clifty Creek1,304 MW
- Lawrenceburg Power, LLC1,232 MW
- Cayuga1,185 MW
- R M Schahfer1,105 MW
- Merom1,080 MW
Data on this page
- Source: U.S. Energy Information Administration (Sep 2026). EIA-860 / 860M / 923, Public domain.
- Bundesnetzagentur, Marktstammdatenregister. Marktstammdatenregister, DL-DE-BY-2.0.