GB II New Haven LLC - New Haven County - ISONE
The plant comprises four generators: a 460 MW petroleum-liquids steam turbine (Unit 1, first operated July 1975) and three 60.5 MW petroleum-liquids combustion turbines (Units 2–4, first operated June 2012). All units are dual-fuel capable, firing residual fuel oil, distillate fuel oil, kerosene, and natural gas.
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Canonical EIA plant baseline.
plant-6156
Similar plants ranked by technology, capacity, and distance.
Operating generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| 1 | 460 MW 432.6 MW summer | Petroleum Liquids Residual Fuel Oil · ST | Jul 1975 | Operating |
| 2 | 60.5 MW 43.2 MW summer | Petroleum Liquids Kerosene · GT | Jun 2012 | Operating |
| 3 | 60.5 MW 43.2 MW summer | Petroleum Liquids Kerosene · GT | Jun 2012 | Operating |
| 4 | 60.5 MW 43.2 MW summer |
Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.
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Project milestones and public references behind the asset profile.
EIA-860 lists generator 1 with this operating date.
| Jun 2012 |
| Operating |
Monthly generation is reported through EIA-923. Capacity factor uses the current EIA nameplate capacity and is shown only for complete calendar years.
| Largest reported plants | Capacity | State | |
|---|---|---|---|
| New Haven SteamCurrent | 641.5 MW | CT | |
| Bridgeport Station | 576.3 MW | CT |
Portfolio membership follows the latest EIA-860 reporting entity. It does not imply ultimate ownership.
View full reporting portfolioEIA-860 lists generator 2, generator 3, generator 4 with this operating date.
Generation Bridge II, LLC closed the acquisition of PSEG Power Connecticut LLC and PSEG New Haven LLC, thereby acquiring ownership and control of New Haven Harbor Station and its peaking project. The acquired entities were renamed GB II Connecticut LLC and GB II New Haven LLC respectively.
Connecticut DEEP renewed the combined Title V, Title IV, and CAIR operating permit (Permit No. 117-0265-TV) for New Haven Harbor Station operated by GB II New Haven LLC. The permit authorizes operation of four electrical generating units.
Answered from the published record above. Questions whose inputs this profile does not carry are omitted rather than estimated.
New Haven Steam has a reported capacity of 641.5 MW. Source: EIA Form 860M.
New Haven Steam is a Petroleum Liquids facility in New Haven County, CT, participating in the ISO-NE market.
New Haven Steam is in New Haven County, CT, inside the ISO-NE balancing area.
New Haven Steam is operated by Generation Bridge II Connecticut, LLC according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.
New Haven Steam reported 167 GWh over the twelve months to 2026-04. Figures are net generation as filed to EIA-923.
By capacity, New Haven Steam ranks #5 of 705 operating plants of the same technology nationally. It ranks #1 of 21 in CT.
Plants within 25 km, nearest first, regardless of technology. Proximity is straight-line distance between mapped plant coordinates; it does not by itself establish a shared point of interconnection.