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- Combustion
- Storage
- Loads
- In development
- Operating
- Size not stated
- 10 · 100 · 1,000 MW
Map
- Combustion
- Storage
- Loads
- In development
- Operating
- Size not stated
Middletown: location and 7 exact-grade projects within 25 km. Basemap: Protomaps, © OpenStreetMap contributors, ODbL.
Middletown
Power plant · Oil
Key facts
Power plant · Oilran 1% of 2025 Out of service- Capacity
- Capacity: sourceEIA-860M · Open licenseMW
- Commissioned
- 1958
- Net generation, 2025
- 86,758 MWh
- Grid
- 345 kV, 115 kV to Connecticut Light & Power Co (ISNE)
- Location
- Middlesex County, Connecticut
- Operated by
- Middletown Power LLC
Output
- Gas
- Oil
Details
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- Technology
- Oil source: “Petroleum Liquids”
- Age
- 68 years since 1958
- Heat rate
- 14,486 Btu/kWh 2025
All 8 attributes from EIA-860M Preliminary Monthly Electric Generator Inventory
| Attribute | Value |
|---|---|
| Grid |
|
| EPA greenhouse gas reporting (GHGRP) |
|
| Eia status |
|
| Fuel burned (MMBtu), 2025 | 1,256,805 |
| Capacity factor, 2025 | 0.013 |
| Heat rate (Btu/kWh), 2025 | 14,486.3 |
| Net generation (MWh), 2025 | 86,758 |
| Balancing authority code | ISNE |
Ownership
2 companies2| Company | Role | Share | As of | Source |
|---|---|---|---|---|
| Middletown Power LLC | Operator | EIA-860M | ||
| ARCLIGHT ENERGY PARTNERS FUND VII LP | Owner | 100.0% | 31 Dec 2023 | EPA GHGRP |
Timeline
- In service · EIA-860M
Sources
4 sourcesSources EIA-860M · EIA · EIA-860M Preliminary Monthly Electric Generator Inventory · EPA Greenhouse Gas Reporting Program — facility register with parent-company shares (Envirofacts pub_dim_facility; FLIGHT)
Sources
- EIA-860M Preliminary Monthly Electric Generator Inventory
- EIA Open Data bulk file — Electricity (ELEC.zip; monthly plant net generation and fuel consumption since 2001)Source: U.S. Energy Information Administration, Electricity bulk data (Form EIA-923 monthly plant series)
- EIA-860M Preliminary Monthly Electric Generator Inventory
- EPA Greenhouse Gas Reporting Program — facility register with parent-company shares (Envirofacts pub_dim_facility; FLIGHT)
Around this plant
Nearby
within 25 km| Project | Kind | Away | MW |
|---|---|---|---|
| Elevate Middletown Announced | Storage | 0.1 km | 275 |
| Middletown Solar Two Postponed | Solar | 6.0 km | 1.9 |
| Middletown Solar One Postponed | Solar | 6.2 km | 2 |
| Moodus Solar One Postponed | Solar | 13.8 km | 2 |
| Meriden Solar One Postponed | Solar | 19.8 km | 1 |
| NU - WETHERSFIELD DATA CENTER Built | Large load | 19.9 km | |
| Hartford Hospital Cogeneration Postponed | Gas, combustion turbine | 24.4 km | 11.5 |