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Retired in September 2025, according to EIA. Last listed as operating or planned in August 2025. EIA-860M · Sep 2026
5.4 MW Distillate Oil in Dukes, MA
5.4 MW
Nameplate Capacity
2
Generators
units
Petroleum Liquids
Technology
1975
Operating Since
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Coordinates
41.3925, -70.6201
County
Dukes, MA
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| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Vineyard Reliability LLC | — | — |
| Owner(s) | Vineyard Reliability LLC | — | — |
| Status | Retired | — | — |
The West Tisbury Generating Facility is a 5.4 MW petroleum-fueled power plant located in Dukes County, Massachusetts. The plant began operating in 1975 and consists of two generators utilizing petroleum liquids technology. Vineyard Reliability LLC is the listed operator of the facility.
The plant's latest annual generation was 3,037 MWh, resulting in a capacity factor of 6.4%. West Tisbury Generating Facility operates within the ISO New England Inc. balancing authority and the Northeast Power Coordinating Council (NPCC) NERC region. In terms of size, the plant ranks 15th out of 17 power plants in Massachusetts and 517th out of 886 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
21.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
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.
1.2K MWh
Latest Month
3.0K MWh
Annual Generation
6.4%
Capacity Factor
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CO₂ Intensity
1661 lb/MWh
NOx
33 lb/MWh
SO₂
3 lb/MWh
CH₄
0.067 lb/MWh
N₂O
0.013 lb/MWh
Capacity Factor
3.8%
Annual Net Gen
2 GWh
CO₂eq
1666 lb/MWh
Subregion
NPCC New England
2013
$765/kW
Est. Construction Cost
Total estimated cost: $4.1M
Forward revenue, DSCR bands, and refinancing risk projected under price, demand, and policy scenarios. Powered by InfraSure's asset cashflow stack.
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Market Position
ISO/RTO Market
ISO-NE
LMP Node
—
Pricing Hub
.Z.RHODEISLAND
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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