Power plant · Connecticut, United States
Middletown Power Plant
Middletown Power Plant is an idle power plant in Connecticut, United States, with 786 MW of capacity, owned by Middletown Power LLC.
Grid connection
It is idle (out of service), holding a 786 MW grid connection at 345 kV to the grid of Connecticut Light & Power Co.
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 | Connecticut | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Status | Idle (out of service) | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Start year | 1958 | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Owner | Middletown Power LLC | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Operator | Middletown Power LLC | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Capacity | 786 MW | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Technology | Petroleum Liquids | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Grid operator | Connecticut Light & Power Co | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Voltage | 345 kV (levels 345, 115 kV) | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Coordinates | 41.5549, -72.5791 | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
Research on this power plant and its owner.Who owns it up to the parent company, its grid connection and planning status, and an introduction to the owner.
Request researchHow it compares
Middletown is the 4th-largest of 10 power plants in Connecticut and the 448th-largest of 1,009 in the United States by capacity; its 786 MW is <0.1% of the 917,512 MW we hold for the United States. Ranks and totals cover the power plants in our data that report their capacity, not every one in existence. Power plants planned, permitted or under construction are ranked apart.
| Within | Rank | Total | Share |
|---|---|---|---|
| Connecticut | 4th of 10 | 8,232 MW | 9.6% |
| United States | 448th of 1,009 | 917,512 MW | <0.1% |
| All power plants in our data | 718th of 15,800 | 1,923,633 MW | <0.1% |
Nearby
Within 50 km of this power plant: 2 data centers and 2 mines, measured from the coordinates in the facts above.
| Name | Kind | Size | Status | Distance |
|---|---|---|---|---|
| Ergonomic Group | Data center | — | — | 17 km |
| New Britain Quarry | Mine | — | Operating | 18 km |
| Data center, Wallingford (OSM way 959969621) | Data center | — | — | 20 km |
| North Branford Quarry | Mine | — | Operating | 30 km |
Owner, operator, grid operator and place
Other power plants in Connecticut
- Millstone2,260 MW
- CPV Towantic Energy Center842 MW
- Lake Road Generating Plant840 MW
- Kleen Energy Systems693 MW
- New Haven Steam642 MW
- Milford Power Project578 MW
- Bridgeport Station576 MW
- Bridgeport Energy Project520 MW
Data on this page
- Contains public sector information licensed under the Open Government Licence v3.0. DUKES 5.11: Power stations in the United Kingdom, Open Government Licence v3.0.
- Contains public sector information licensed under the Open Government Licence v3.0. DESNZ Renewable Energy Planning Database (REPD), Open Government Licence v3.0.
- Source: U.S. Energy Information Administration (Sep 2026). EIA-860 / 860M / 923, Public domain.
- JRC Open Power Plants Database (JRC-PPDB-OPEN), European Commission, Joint Research Centre. JRC Open Power Plants Database (JRC-PPDB-OPEN), CC BY 4.0.
- Bundesnetzagentur, Marktstammdatenregister. Marktstammdatenregister, DL-DE-BY-2.0.
- MSHA Mines Data Set. MSHA Mines Data Set, Public domain.
- Dutch power station owners' and operators' pages. Dutch power station owners' and operators' pages, Facts only, each linked to its page.
- © OpenStreetMap contributors. OpenStreetMap data centers, ODbL 1.0.
- Contains public sector information licensed under the Open Government Licence v3.0. Planning Inspectorate: National Infrastructure Projects, Open Government Licence v3.0.
- RVO SDE(+)(+) projecten in beheer and SDE viewer. RVO SDE(+)(+) projecten in beheer and SDE viewer, Free reuse, no attribution required.
- Wikidata. Wikidata, CC0 1.0.