Diamond Island Plant

💧 HydroelectricIPP Non-CHP1 MW capacity

1001st largest plant in New York · 12336th nationally

Diamond Island Plant is a hydroelectric power plant in New York with a nameplate capacity of 1.2 MW. It generates roughly 3.8k MWh per year — enough to power about 365 average U.S. homes.

Its capacity factor of 36% reflects intermittent or peaking operation.

PeakingMid-meritBaseload0%40%80%100%36%
Peaking — intermittent or backup
Capacity1 MWnameplate
Annual Generation3.8k MWhEPA eGRID
Capacity Factor36%of theoretical max
Annual CO₂metric tons

Location

Plant NameDiamond Island Plant
OperatorCentral Rivers Power Us, Llc
CityWatertown
CountyJefferson County
StateNew York
ZIP13601
Coordinates43.97863, -75.88610

This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.

Natural GasHydroelectricWindSolarBiomass

Generators (3)

IDTechnologyFuelCapacityStatusOnline
GEN1Conventional HydroelectricWater0.4 MWOperating1914
GEN2Conventional HydroelectricWater0.4 MWOperating1914
GEN3Conventional HydroelectricWater0.4 MWOperating1914

Grid context

NERC RegionNPCC
Balancing AuthorityNew York Independent System Operator

About Hydroelectric plants

Hydroelectric plants spin turbines using falling or flowing water — typically from a dam-impounded reservoir. They are dispatchable, long-lived, and emission-free at the point of generation, though large reservoirs can disrupt rivers and ecosystems and methane can be released from flooded vegetation.

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