Blenheim Gilboa

Hydro power plant in New York, United States of America. Approximate location 42.4423, -74.4479.

HydroNew YorkUnited States of America

Blenheim Gilboa is a 1,000 MW hydro power station in New York, United States of America. It is operated by New York Power Authority. Based on reported annual generation of -120 GWh, it can supply roughly -34,428 homes. It ranks #314 of 9,833 United States of America power plants by installed capacity. Commissioned in 1973, it is around 53 years old — an older, legacy facility. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, hydro supplies about 5.3% of United States of America's electricity; the national grid averages 384 gCO₂/kWh (43.0% low-carbon) (2025).

1,000MW installed capacity
-120GWh reported / yr
-34,428homes powered
1973commissioned (~53 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0002691.

Reported generation trend

2013: -121 GWh20132014: -176 GWh20142015: -178 GWh20152016: -186 GWh20162017: -163 GWh20172018: -201 GWh20182019: -120 GWh2019-120 GWh

Annual generation (GWh), WRI Global Power Plant Database (CC BY 4.0).

Owner

Operated by New York Power Authority. All plants by this company →

Local climate & thermal context

This hydro plant converts the energy of falling or flowing water through hydro turbines. It sits in a warm-summer humid continental climate (Köppen Dfb) — Northern Hemisphere, latitude 42.4°N — which shapes how much energy it can produce and how its output varies through the year.

6.7°Cannual mean temp
4,146heating degree-days (base 18°C)
51cooling degree-days (base 18°C)
521 melevation

Monthly mean temperature

J: -7 °CJF: -6 °CFM: -1 °CMA: 6 °CAM: 12 °CMJ: 17 °CJJ: 19 °CJA: 18 °CAS: 14 °CSO: 8 °CON: 3 °CND: -4 °CD19 °C

Heating degree-days here run 69% above the median power plant in this dataset — a proxy for how much extra energy heated equipment must replace through its surfaces in winter.

Climate heat-demand index: 86/100 — this site sits in the top third of the power plants we cover by heating degree-days.

In colder climates, uninsulated hot equipment (boilers, turbines, valves, steam lines) loses proportionally more heat to ambient air — exactly the loss Inzonex modular insulation is designed to cut.

Climate normals: WorldClim 2.1 (1970–2000 monthly normals, 10 arc-min, CC BY 4.0); zone: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid). Degree-days & heat-demand index computed by PowerAtlas — a modelled heat-demand proxy, not a measured site figure.

How it compares & nearby plants

The #21 largest hydro power plant of 1449 in United States of America by capacity.

United States of America has 1449 hydro power plants in this dataset, together about 101,657 MW of capacity.

Nearby power plants

Location

Coordinates 42.4423, -74.4479 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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