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Retired in September 2025, according to EIA. Last listed as operating or planned in August 2025. EIA-860M · Sep 2026
8.1 MW Distillate Oil in Dukes, MA
8.1 MW
Nameplate Capacity
3
Generators
units
Petroleum Liquids
Technology
1969
Operating Since
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Coordinates
41.4258, -70.6083
County
Dukes, MA
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| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Vineyard Reliability LLC | — | — |
| Owner(s) | Vineyard Reliability LLC | — | — |
| Status | Retired | — | — |
The Oak Bluffs Diesel Generating Facility is located in Dukes County, Massachusetts. The plant has a total capacity of 8.1 MW consisting of 3 generators and primarily burns distillate fuel oil (DFO). It began operating in 1969 and is owned and operated by Vineyard Reliability LLC. The plant connects to the ISO New England Inc. balancing authority within the Northeast Power Coordinating Council (NPCC) region.
In the most recent year with available data, the Oak Bluffs facility generated 2,147 MWh of electricity, achieving a capacity factor of 3.0%. The plant ranks 11th out of 17 similar plants in Massachusetts and 408th out of 886 nationally. Its technology is classified as Petroleum Liquids by the Energy Information Administration (EIA).
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.
827 MWh
Latest Month
2.1K MWh
Annual Generation
3.0%
Capacity Factor
Forward-looking generation outlook with probabilistic ranges across weather, demand, and policy scenarios. Powered by InfraSure's generation modeling stack.
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CO₂ Intensity
1610 lb/MWh
NOx
32 lb/MWh
SO₂
3 lb/MWh
CH₄
0.065 lb/MWh
N₂O
0.013 lb/MWh
Capacity Factor
1.8%
Annual Net Gen
1 GWh
CO₂eq
1615 lb/MWh
Subregion
NPCC New England
2013
$765/kW
Est. Construction Cost
Total estimated cost: $6.2M
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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