GenConn Middletown LLC
Other power plant · Middlesex County, Connecticut
Details
- Primary fuel
- Other
- Technology
- Petroleum Liquids
- Operator
- GenConn Middletown LLC
- County
- Middlesex County
- Generating units
- 4
- Share of state capacity
- 2.20%
- Rank among other plants in Connecticut
- #5 of 29
- EIA plant code
- 57068
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 12 | Petroleum Liquids | 61 MW | 47 MW | 2011 | Operating |
| 13 | Petroleum Liquids | 61 MW | 47 MW | 2011 | Operating |
| 14 | Petroleum Liquids | 61 MW | 47 MW | 2011 | Operating |
| 15 | Petroleum Liquids | 61 MW | 47 MW | 2011 | Operating |
Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.
Similarly sized plants in Connecticut
| Wallingford Energy | Natural gas | 350 MW |
| GenConn Devon LLC | Other | 242 MW |
| Devon Station | Other | 223 MW |
| Gravel Pit Solar, LLC | Solar | 120 MW |
About this data
From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 242 MW solar plant and a 242 MW nuclear plant have the same entry here and produce very different amounts of electricity.
“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All Connecticut power plants · What Connecticut actually generates