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14 MW Distillate Oil operating in Suffolk, NY — New York Independent System Operator
14 MW
Nameplate Capacity
1
Generators
unit
Petroleum Liquids
Technology
1964
Operating Since
Coordinates
41.1059, -72.3761
County
Suffolk, NY
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | National Grid Generation LLC | National Grid Generation | — |
| Owner(s) | National Grid Generation LLC | National Grid | — |
| Status | Operating | — | — |
The Southold plant is a 14 MW petroleum liquids-fired power plant located in Suffolk County, New York. The plant began operating in 1964 and has one generator. It is owned by National Grid, a company based in the United Kingdom, and operated by National Grid Generation LLC. The plant operates within the New York Independent System Operator (NYISO) balancing authority and the Northeast Power Coordinating Council (NPCC) NERC region.
In the latest year of reported generation data, Southold produced 686 MWh of electricity, achieving a capacity factor of 0.6%. The plant's installed cost was $382.04 per kW, according to FERC data. Southold is ranked as the 12th largest of 66 power plants in New York and 253rd out of 886 plants nationally. Recent news coverage of the plant includes 3 articles each on industry and regulatory topics, 2 on grid issues, and 1 each on hazards and deals.
Generated from EIA, GEM, and public data sources
ISO/RTO
NYISO
Market
ISO/RTO Member
NERC Region
NPCC — Northeast Power Coordinating Council
Balancing Authority
192 MWh
Latest Month
686 MWh
Annual Generation
0.6%
Capacity Factor
CO₂ Intensity
3671 lb/MWh
Low-utilization plant — per-MWh rate is dominated by startup/standby emissions; not directly comparable to baseload averages.
NOx
20 lb/MWh
SO₂
Gas turbine · National Grid Generation LLC · Data from 2015–2024
$543/kW
Installed Cost
$543/kW
Annual CapEx
$1015.4/MWh
Operating Cost
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
Point of Interconnection
Nearest Substation
SOUTHOLD___IC
Substation Distance
< 10 km
Coord Source
NYISO direct
Market Position
ISO/RTO Market
NYISO
LMP Node
23719
Pricing Hub
NYISO Zone K
Node Source
EIA-860 direct report
Last updated 2026-03-14
View all 6 articlesNo ask pi reports yet for this entity.
ask pi about SoutholdNew York Independent System Operator (NYIS)
Grid Voltage
69.0 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility
11 lb/MWh
CH₄
0.149 lb/MWh
N₂O
0.030 lb/MWh
Capacity Factor
0.6%
Annual Net Gen
1 GWh
CO₂eq
3683 lb/MWh
Subregion
NPCC Long Island