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Ryegate Power Station

Waste power plant in New Hampshire, United States of America. Approximate location 44.2131, -72.0572.

WasteNew HampshireUnited States of America

Ryegate Power Station is a 22 MW waste power plant in New Hampshire, United States of America. It is operated by ENGIE. Based on reported annual generation of 131 GWh, it can supply roughly 37k homes. It ranks #4647 of 10,938 United States of America power plants by installed capacity. Commissioned in 1992, it is around 34 years old — long-established. In context, the national grid averages 384 gCO₂/kWh (43.0% low-carbon) (2025).

22Legacy source-record capacity
131GWh reported / yr
37,400homes powered
1992commissioned (~34 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0051026.

Data status

Known data

FacilityRyegate Power Station WRI
CountryUnited States of America · New Hampshire WRI
Coordinates44.2131, -72.0572 WRI
FuelWaste WRI
MW installed capacity22 MW WRI source record; scope not independently normalised
OwnerENGIE WRI
Commissioned1992 WRI
GWh reported / yr131 GWh/yr WRI

Calculated from dataset

Capacity rank in country#4647 of 10938 calculated
Fuel-specific rank in country#143 of 551 calculated
Capacity vs country/fuel peers3.26× · 7 MW median · 551 peers calculated
Homes-powered equivalent37,400 calculated from reported generation
Climate6.1°C · HDD 4,398 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 available not in dataset

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

Data provenance

The capacity and fuel fields on this page are source-record values from the upstream open dataset. They are useful for identification and ranking, but they have not been upgraded to a 2026 registry/GEM-location verified value.

capacity: WRI Global Power Plant Database source-record (legacy); fuel: WRI source-record fuel

In context: how this plant compares

At 22 MW, Ryegate Power Station is well above the median waste plant in United States of America (7 MW). Waste-to-energy plants burn municipal solid waste to generate electricity and heat, cutting landfill volume while recovering energy from residual waste.

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

Reported generation trend

2013: 146 GWh20132014: 142 GWh20142015: 155 GWh20152016: 155 GWh20162017: 166 GWh20172018: 167 GWh20182019: 131 GWh2019167 GWh

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

Owner

Operated by ENGIE.

Local climate & thermal context

This waste plant recovers energy by combusting municipal or industrial waste. It sits in a warm-summer humid continental climate (Köppen Dfb) — Northern Hemisphere, latitude 44.2°N — which shapes how much energy it can produce and how its output varies through the year.

6.1°Cannual mean temp
4,398heating degree-days (base 18°C)
68cooling degree-days (base 18°C)
257 melevation

Monthly mean temperature

J: -9 °CJF: -7 °CFM: -1 °CMA: 5 °CAM: 12 °CMJ: 17 °CJJ: 20 °CJA: 18 °CAS: 14 °CSO: 8 °CON: 2 °CND: -6 °CD20 °C

Heating degree-days here run 79% 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: 89/100 — 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
28.7°Cseasonal temperature swing
180 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 #143 largest waste power plant of 551 in United States of America by capacity.

United States of America has 551 waste power plants in this dataset, together about 10,154 MW of capacity.

Nearby power plants

Location

Coordinates 44.2131, -72.0572 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Ryegate Power Station?

Ryegate Power Station is a 22 MW source-record waste power plant in New Hampshire, United States of America, commissioned in 1992.

How much electricity does Ryegate Power Station generate?

Ryegate Power Station generates about 131 GWh of electricity per year.

How many homes can Ryegate Power Station power?

Its output is enough to supply roughly 37,400 homes.

Who operates Ryegate Power Station?

Ryegate Power Station is operated by ENGIE.

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