Fore River Generating Station
Calpine Fore River Energy Center, LLCNorfolk County
Fore River is an operating 872.2 MW nameplate combined-cycle plant in North Weymouth, Massachusetts, built around two Mitsubishi combustion turbines and one steam turbine. The dual-fuel station began operating in 2003 and connects to the local 115 kV transmission system.
Mapped infrastructure geometry associated with this asset.
EIA plant 55317 · Inventory for Aug 2026.
| Generator | Technology | Status | Power (MW) | Energy (MWh) |
|---|---|---|---|---|
| GT11 | Natural Gas Fired Combined Cycle | Operating | 278.6 | Unknown |
| GT12 | Natural Gas Fired Combined Cycle | Operating | 278.6 | Unknown |
| ST15 | Natural Gas Fired Combined Cycle | Operating | 315 | Unknown |
Mapped infrastructure geometry associated with this asset.
Similar plants ranked by technology, capacity, and distance.
Operating generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| GT11 | 278.6 MW 231 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CT | Aug 2003 | Operating |
| GT12 | 278.6 MW 231 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CT | Aug 2003 | Operating |
| ST15 | 315 MW 262 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CA | Aug 2003 | Operating |
Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.
Deterministic links to ERCOT market resources, price records, outage disclosures, queue records, and nearby infrastructure. Candidate joins remain labeled until corroborated.
Parties, market resources, and identifiers tied to this asset, with owner, operator, developer, EPC, compliance provider, and interconnecting entity roles kept separate.
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Project milestones and public references behind the asset profile.
EIA-860 lists generator GT11, generator GT12, generator ST15 with this operating date.
Monthly generation is reported through EIA-923. Capacity factor uses the current EIA nameplate capacity and is shown only for complete calendar years.
Portfolio membership follows the latest EIA-860 reporting entity. It does not imply ultimate ownership.
Constellation Energy Corporation completed its acquisition of Calpine Corporation from Energy Capital Partners, making Constellation the parent company of Calpine Fore River Energy Center, LLC and establishing the combined entity as the world's largest private-sector power producer.
Answered from the published record above. Questions whose inputs this profile does not carry are omitted rather than estimated.
Fore River Generating Station reports 872.2 MW natural gas of operating nameplate capacity. These technology ratings do not establish a common export limit. Source: EIA Aug 2026.
Fore River Generating Station is a Natural Gas Fired Combined Cycle facility in Norfolk County, MA, participating in the ISO-NE market.
Fore River Generating Station is in Norfolk County, MA, inside the ISO-NE balancing area.
Fore River Generating Station is operated by Calpine Fore River Energy Center, LLC according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.
Fore River Generating Station reported 2,545.2 GWh over the twelve months to 2026-07. Figures are net generation as filed to EIA-923.
By capacity, Fore River Generating Station ranks #124 of 540 operating plants of the same technology nationally. It ranks #1 of 15 in MA.
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.