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Hampton Facility — Power plant · Gas, combustion turbine · Foss Manufacturing Company LLCLIBERTY MUTUAL DATA CENTER — Large load · NH · 14.4 km awayIpswich MA BESS 1 — Storage · MA · 5 MW · 24.7 km away
  • Combustion
  • Storage
  • Loads
  • Under construction
  • Operating
  • Size not stated
  • 10 · 100 · 1,000 MW

Hampton Facility

Power plant · Gas, combustion turbine

Key facts

Power plant · Gas, combustion turbineran 60% of 2025 Operating
Capacity
Capacity: sourceEIA-860M · Open licenseMW
Commissioned
2000
Net generation, 2025
26,095 MWh
Grid
34 kV to Unitil Energy Systems (ISNE)
Location
Rockingham County, New Hampshire
Operated by
Foss Manufacturing Company LLCSourceEIA-860M Preliminary Monthly Electric Generator Inventory

Output

Net generation MWh by year, 2001 to 2026
Fuel burned MMBtu by year, 2001 to 2026
  • Gas
  • Oil

Operations detail

Details

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No companies named in filings yet.

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Technology
Gas, combustion turbine source: “Natural Gas Fired Combustion Turbine”
Age
26 years since 2000
Unused energy
18 GWh 2025Unused energyA lead, not a guarantee: MW × hours × (1 − capacity factor) for the latest year (EIA-923), gas, coal and oil plants only. Air-permit run-hour caps, heat rate (cost to run) and capacity-market or reliability obligations can rule it out.
Heat rate
14,252 Btu/kWh 2025
All 5 attributes from EIA-860M Preliminary Monthly Electric Generator Inventory
Attributes
AttributeValue
Fuel burned (MMBtu), 2025371,908
Capacity factor, 20250.596
Heat rate (Btu/kWh), 202514,251.8
Net generation (MWh), 202526,095.4
Balancing authority codeISNE

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
3.8 MW
Generators retired
6
Capacity still in service
5 MW
Generators that retired or are scheduled to retire
GeneratorTechnologyNameplateStateDate
GEN6Petroleum Liquids0.7 MWRetiredJanuary 2016
GEN1Petroleum Liquids0.5 MWRetiredAugust 2017
GEN2Petroleum Liquids0.5 MWRetiredAugust 2017
GEN3Petroleum Liquids0.7 MWRetiredAugust 2017
GEN4Petroleum Liquids0.7 MWRetiredAugust 2017
GEN5Petroleum Liquids0.7 MWRetiredAugust 2017

Grid

EIA-860 2025Grid fieldsAs the plant reported them to EIA-860 for 2025 (Schedule 2).
Grid voltage at the plant
34 kV
Transmission or distribution system owner
Unitil Energy Systems
Balancing authority
ISO New England Inc.
NERC region
NPCC
Transmission lines within 25 km (9)
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.

Timeline

  • Stated Units GEN1, GEN2, GEN3, GEN4, GEN5 scheduled to retire, 3.1 MW · EIA-860M
  • Stated Unit GEN6 scheduled to retire, 0.7 MW · EIA-860M
  • In service · EIA-860M

Sources

4 sources

Sources EIA-860M · LBNL · EIA · EIA-860M Preliminary Monthly Electric Generator Inventory

Sources

Every source and license · Attribution

View at source

Around this plant

Nearby

within 25 km
Projects within 25 km, nearest first.
ProjectKindAwayMW
LIBERTY MUTUAL DATA CENTER Built Large load 14.4 km
Ipswich MA BESS 1 Under construction Storage 24.7 km 5