- Combustion
- Operating
- 10 · 100 · 1,000 MW
Map
- Combustion
- Operating
Devon Station: location. Basemap: Protomaps, © OpenStreetMap contributors, ODbL.
Devon Station
Power plant · Oil
Key facts
Power plant · Oil Operating- Capacity
- Capacity: sourceEIA-860M · Open licenseMW
- Commissioned
- 1985
- Net generation, 2025
- -1,353 MWh
- Grid
- 115 kV to Connecticut Light & Power Co (ISNE)
- Location
- New Haven County, Connecticut
- Operated by
- Devon Power LLC
Output
- Gas
- Oil
Details
Who’s behind it
- Owner
- NRG Energy, Inc
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- Technology
- Oil source: “Petroleum Liquids”
- Age
- 41 years since 1985
All 4 attributes from EIA-860M Preliminary Monthly Electric Generator Inventory
| Attribute | Value |
|---|---|
| EPA greenhouse gas reporting (GHGRP) |
|
| Fuel burned (MMBtu), 2025 | 42,765 |
| Net generation (MWh), 2025 | -1,353 |
| Balancing authority code | ISNE |
Data notes (2)
- Capacity factor, 2025 not shown: net generation -1353.0 MWh is not positive (the plant consumed at least as much as it produced over the year)
- Heat rate (Btu/kWh), 2025 not shown: fuel burned but net generation is not positive
Retirement
EIA-860M September 2026StatusSome generators have retired; the rest of the plant is still in service. As of EIA-860M for September 2026.- Capacity retired
- 207 MW
- Generators retired
- 2
- Capacity still in service
- 222.6 MW
| Generator | Technology | Nameplate | State | Date |
|---|---|---|---|---|
| 7 | Petroleum Liquids | 103.5 MW | Retired | November 2007 |
| 8 | Petroleum Liquids | 103.5 MW | Retired | November 2007 |
Grid
EIA-860 2025Grid fieldsAs the plant reported them to EIA-860 for 2025 (Schedule 2).- Grid voltage at the plant
- 115 kV
- Transmission or distribution system owner
- Connecticut Light & Power Co
- Balancing authority
- ISO New England Inc.
- NERC region
- NPCC
Transmission lines within 25 km (10)
Can the connection be reused?
A plant that retires usually leaves its substation, transmission connection and interconnection agreement behind, and those may be reusable by a new project at the same site. FERC Order No. 845 lets an interconnection customer use surplus interconnection service at an existing site, and some transmission providers' tariffs let a replacement resource take over a retiring unit's interconnection service, usually within a set time after the retirement. Whether any such right still exists here, who holds it and on what terms depends on the owner, the transmission provider and timing; this page does not establish any of that.
Ownership
2 companies2| Company | Role | Share | As of | Source |
|---|---|---|---|---|
| Devon Power LLC | Operator | EIA-860M | ||
| NRG Energy, Inc | Owner | 100.0% | 31 Dec 2023 | EPA GHGRP |
Timeline
- Stated Units 7, 8 scheduled to retire, 207 MW · EIA-860M
- In service · EIA-860M
Sources
5 sourcesSources EIA-860M · LBNL · 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
- LBNL — A Harmonized Geospatial Dataset of U.S. Transmission Lines: Linking FERC Form 1 and HIFLD, 1994-2024 (OEDI submission 8742)Yin, Nait Belaid & Heleno (2026), Lawrence Berkeley National Laboratory, OEDI, CC BY 4.0: A Harmonized Geospatial Dataset of U.S. Transmission Lines: Linking FERC Form 1 and HIFLD, 1994-2024. Modified by Inframation: HIFLD-side fields only, names re-cased, coordinates rounded.
- 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)