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Chasm Hydro Partnership

Hydro power plant in New York, United States of America. Approximate location 44.9318, -74.1125.

HydroNew YorkUnited States of America

Chasm Hydro Partnership is a 2 MW hydro power plant in New York, United States of America. It is operated by Ampersand Chasm Hydro LLC. Based on its capacity (estimated), it can supply roughly 1.6k homes (estimated). It ranks #9593 of 10,938 United States of America power plants by installed capacity. Commissioned in 1982, it is around 44 years old — long-established. 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).

2Source-backed capacity
1,601homes powered (est.)
1982commissioned (~44 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0050315.

Data status

Known data

FacilityChasm Hydro Partnership WRI
CountryUnited States of America · New York WRI
Coordinates44.9318, -74.1125 WRI
FuelHydro WRI
MW installed capacity2 MW WRI source record; scope not independently normalised
OwnerAmpersand Chasm Hydro LLC WRI
Commissioned1982 WRI

Calculated from dataset

Capacity rank in country#9593 of 10938 calculated
Fuel-specific rank in country#1259 of 1449 calculated
Capacity vs country/fuel peers0.20× · 8 MW median · 1449 peers calculated
Homes-powered equivalent1,601 calculated
Climate5.3°C · HDD 4,653 derived from coordinates
Environmental severityC2 · 31/100 derived from coordinates

Not available

TechnologyNot available not in dataset
GWh reported / yrNot available not in dataset
CO₂ emissionsnot applicable not applicable

Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.

Data provenance

The capacity and/or fuel fields on this page include a source-backed provenance label from GEM, an official registry, Wikidata, OSM, or a cross-source match.

capacity: Wikidata P2109 nameplate capacity; fuel: WRI source-record fuel

In context: how this plant compares

At 2 MW, Chasm Hydro Partnership is below the median hydro plant in United States of America (8 MW). Hydropower converts the energy of falling or flowing water into electricity; output depends on rainfall and reservoir level, and large dams also provide grid balancing and storage.

Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.

Reported generation trend

2013: 7 GWh20132014: 5 GWh20142015: 5 GWh20152016: 4 GWh20162017: 0 GWh20172018: 0 GWh20182019: 0 GWh20197 GWh

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

Owner

Operated by Ampersand Chasm Hydro LLC.

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 44.9°N — which shapes how much energy it can produce and how its output varies through the year.

5.3°Cannual mean temp
4,653heating degree-days (base 18°C)
55cooling degree-days (base 18°C)
301 melevation

Monthly mean temperature

J: -10 °CJF: -9 °CFM: -3 °CMA: 4 °CAM: 12 °CMJ: 17 °CJJ: 20 °CJA: 18 °CAS: 14 °CSO: 8 °CON: 1 °CND: -7 °CD20 °C

Heating degree-days here run 89% 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: 92/100 — this site sits in the top third of the power plants we cover by heating degree-days.

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.

Site climate & environmental severity

For a plant’s outdoor hardware — heat-recovery steam generators (HRSG), expansion joints, valves, flanges and their insulation — the local climate sets how fast unprotected steel and coatings degrade. This site sits in a mild atmospheric environment (estimated ISO 9223 class C2 — Low), with thermal cycling the leading environmental stress.

C2ISO 9223 corrosivity (indicative)
31/100environmental-severity index
29.8°Cseasonal temperature swing
340 kmdistance to coast

Higher environmental severity is exactly where protective removable insulation pays back most: a sheltered micro-climate slows corrosion, UV and thermal-cycling damage and extends outdoor hardware service life. This is an indicative site-climate context — not a condition assessment of any specific plant or operator.

Indicative estimate via the ISO 9223:2012 informative method (atmospheric corrosivity from temperature, time-of-wetness and airborne salinity), using WorldClim climate normals, the Köppen-Geiger class and coast distance. Indicative, not a measured corrosion rate.

How it compares & nearby plants

The #1259 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 102,513 MW of capacity.

Nearby power plants

Location

Coordinates 44.9318, -74.1125 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Chasm Hydro Partnership?

Chasm Hydro Partnership is a 2 MW source-record hydro power plant in New York, United States of America, commissioned in 1982.

How many homes can Chasm Hydro Partnership power?

Its output is enough to supply roughly 1,601 homes (estimated).

Who operates Chasm Hydro Partnership?

Chasm Hydro Partnership is operated by Ampersand Chasm Hydro LLC.

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