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10.9 MW Natural Gas Internal Combustion Engine (9 MW) + Petroleum Liquids (2 MW) operating in Essex, MA
10.9 MW
Nameplate Capacity
9
Generators
units
Hybrid (2)
Technology
Natural Gas Internal Combustion Engine + Petroleum Liquids
1951
Operating Since
Coordinates
42.6986, -70.8697
County
Essex, MA
Nearby Plants
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| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Town of Ipswich - (MA) | — | — |
| Owner(s) | Town of Ipswich - (MA) | — | — |
| Status | Operating | — | — |
High Street Station is a 10.9 MW hybrid power plant located in Essex County, Massachusetts. The plant, which began operating in 1951, is owned and operated by the Town of Ipswich. It utilizes both natural gas and petroleum liquids as fuel sources, employing nine generators using natural gas internal combustion engine technology. The plant operates within the ISO New England Inc. balancing authority and the Northeast Power Coordinating Council (NPCC) NERC region.
In the most recent year with available data, High Street Station generated 197 MWh of electricity, resulting in a capacity factor of 0.2%. The plant is ranked 24th out of 37 power plants in Massachusetts and 1434th out of 1963 plants nationally.
Generated from EIA, GEM, and public data sources
ISO/RTO
ISO-NE
Market
ISO/RTO Member
NERC Region
NPCC — Northeast Power Coordinating Council
Balancing Authority
ISO New England Inc. (ISNE)
Grid Voltage
23.0 kV
Regulatory Status
RE — Regulated
Entity Type
Municipal
Sector
Electric Utility
Monthly net generation as reported to EIA-923 — useful for historical context. Confidence varies sharply by fuel type; the band above and the “About this data” button explain the caveats specific to this plant and how InfraSure’s in-house model handles them.
22 MWh
Latest Month
197 MWh
Annual Generation
0.2%
Capacity Factor
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CO₂ Intensity
13265 lb/MWh
Low-utilization plant — per-MWh rate is dominated by startup/standby emissions; not directly comparable to baseload averages.
NOx
294 lb/MWh
SO₂
7 lb/MWh
CH₄
0.342 lb/MWh
N₂O
0.051 lb/MWh
Capacity Factor
0.0%
Annual Net Gen
0 GWh
CO₂eq
13288 lb/MWh
Subregion
NPCC New England
2013
$965/kW
Est. Construction Cost
Total estimated cost: $10.5M
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Point of Interconnection
Nearest Substation
High Street Substation · 23 kV
Substation Distance
0.116 km
Operator
Ipswich Electric Light Department
Coord Source
OSM spatial
Market Position
ISO/RTO Market
ISO-NE
LMP Node
LD.IPSWICH 23
Pricing Hub
.H.INTERNAL_HUB
Location Type
NETWORK NODE
Node Source
Curated node match
No wholesale contracts disclosed in FERC EQR for this plant.
FERC EQR captures bilateral wholesale energy + capacity contracts ≥$1M/yr filed quarterly by jurisdictional sellers — covers renewable PPAs, thermal energy sales agreements, capacity contracts, and tolling agreements alike. Many plants don't appear: regulated-utility output flows to ratepayers via cost-of-service rather than bilateral contracts; small projects fall below the filing threshold; tax-equity-financed renewables route offtake to investors not utilities; merchant plants sell into ISO clearing markets without bilateral contracts. News-extracted buyer facts (below) may surface contracts disclosed only through announcements.
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