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29.4 MW Natural Gas operating in Nassau, NY — New York Independent System Operator
29.4 MW
Nameplate Capacity
6
Generators
units
Natural Gas Internal Combustion Engine
Technology
1954
Operating Since
Coordinates
40.6584, -73.6403
County
Nassau, NY
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Village of Rockville Centre - (NY) | — | — |
| Owner(s) | Village of Rockville Centre - (NY) | — | — |
| Status | Operating | — | — |
The Charles P Keller plant is a natural gas-fueled power plant located in Nassau County, New York. Operated by the Village of Rockville Centre, the plant has a total capacity of 29.4 MW distributed across six natural gas-fired internal combustion engine generators. The plant began operating in 1954. It is connected to the New York Independent System Operator (NYISO) balancing authority and is within the Northeast Power Coordinating Council (NPCC) NERC region.
In the most recent year with available data, the Charles P Keller plant generated 123 MWh of electricity, resulting in a capacity factor of 0.0%. The plant ranks 66th out of 102 power plants in New York state by capacity, and 1240th out of 1963 plants nationally.
Generated from EIA, GEM, and public data sources
ISO/RTO
NYISO
Market
ISO/RTO Member
NERC Region
NPCC — Northeast Power Coordinating Council
Balancing Authority
15 MWh
Latest Month
123 MWh
Annual Generation
0.0%
Capacity Factor
CO₂ Intensity
13817 lb/MWh
Low-utilization plant — per-MWh rate is dominated by startup/standby emissions; not directly comparable to baseload averages.
NOx
271 lb/MWh
SO₂
2013
$965/kW
Est. Construction Cost
Total estimated cost: $28.4M
Point of Interconnection
Nearest Substation
BARRETT_IC_1
Substation Distance
< 10 km
Coord Source
NYISO direct
Market Position
ISO/RTO Market
NYISO
LMP Node
—
Pricing Hub
NYISO Zone K
Node Source
Shared substation inference
Substation identified. Node ID not yet resolved against ISO roster.
Last updated 2026-03-26
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ask pi about Charles P KellerNew York Independent System Operator (NYIS)
Grid Voltage
4.16 kV
Regulatory Status
RE — Regulated
Entity Type
Municipal
Sector
Electric Utility
0.367 lb/MWh
CH₄
0.312 lb/MWh
N₂O
0.039 lb/MWh
Capacity Factor
0.0%
Annual Net Gen
0 GWh
CO₂eq
13836 lb/MWh
Subregion
NPCC Long Island