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Norwalk Hospital Plant

Gas power plant in Connecticut, United States of America. Approximate location 41.1109, -73.422.

GasConnecticutUnited States of America

Norwalk Hospital Plant is a 4 MW gas power plant in Connecticut, United States of America. It is operated by Norwalk Hospital. Based on reported annual generation of 9 GWh, it can supply roughly 2.6k homes. It ranks #7474 of 10,938 United States of America power plants by installed capacity. Commissioned in 2008, it is around 18 years old — relatively modern. In context, gas supplies about 40.0% of United States of America's electricity; the national grid averages 384 gCO₂/kWh (43.0% low-carbon) (2025).

4Legacy source-record capacity
9GWh reported / yr
2,628homes powered
2008commissioned (~18 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0063673.

Data status

Known data

FacilityNorwalk Hospital Plant WRI
CountryUnited States of America · Connecticut WRI
Coordinates41.1109, -73.422 WRI
FuelGas WRI
MW installed capacity4 MW WRI source record; scope not independently normalised
OwnerNorwalk Hospital WRI
Commissioned2008 WRI
GWh reported / yr9 GWh/yr WRI

Calculated from dataset

CO₂ emissions3,680 t CO₂/yr calculated
Capacity rank in country#7474 of 10938 calculated
Fuel-specific rank in country#1955 of 2165 calculated
Capacity vs country/fuel peers0.04× · 121 MW median · 2165 peers calculated
Homes-powered equivalent2,628 calculated from reported generation
Climate10.9°C · HDD 2,934 derived from coordinates
Environmental severityC4 · 45/100 derived from coordinates

Not available

TechnologyNot available not in dataset
GWh reported / yrNot 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 4 MW, Norwalk Hospital Plant is below the median gas plant in United States of America (121 MW). Gas plants burn natural gas either in open-cycle turbines for fast peaking, or in combined-cycle units that recover exhaust heat in an HRSG to reach roughly 55–62% efficiency — the cleanest-burning fossil option.

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

Capacity vs largest gas plants in United States of America

Fermi America Project Matador power station: 6,000 MW6kFermi Amer…Chevron AI Data Center Project: 5,000 MW5kChevron AI…GW Ranch Energy Center: 5,000 MW5kGW Ranch E…West County Energy Center: 4,263 MW4kWest Count…Pittsylvania power station: 3,800 MW4kPittsylvan…Bruce Mansfield power station: 3,641 MW4kBruce Mans…Crystal River: 3,449 MW3kCrystal Ri…Schahfer Generating Station: 2,958 MW3kSchahfer G…

Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).

Owner

Operated by Norwalk Hospital.

Local climate & thermal context

This gas plant burns natural gas in a turbine — often in a combined-cycle setup — to generate electricity. It sits in a humid subtropical climate (Köppen Cfa) — Northern Hemisphere, latitude 41.1°N — which shapes how much energy it can produce and how its output varies through the year.

10.9°Cannual mean temp
2,934heating degree-days (base 18°C)
366cooling degree-days (base 18°C)
19 melevation

Monthly mean temperature

J: -2 °CJF: 0 °CFM: 4 °CMA: 9 °CAM: 15 °CMJ: 20 °CJJ: 23 °CJA: 22 °CAS: 18 °CSO: 12 °CON: 7 °CND: 1 °CD23 °C

Heating degree-days here run 19% 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: 61/100 — this site sits in the mid third of the power plants we cover by heating degree-days.

A gas turbine here also runs ~0% below its ISO (15°C) rating at this annual mean (typical CCGT curve, estimate).

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 corrosive environment (estimated ISO 9223 class C4 — High), with marine corrosion the leading environmental stress.

C4ISO 9223 corrosivity (indicative)
45/100environmental-severity index
24.8°Cseasonal temperature swing
12 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 #1955 largest gas power plant of 2165 in United States of America by capacity.

United States of America has 2165 gas power plants in this dataset, together about 789,950 MW of capacity.

Nearby power plants

Location

Coordinates 41.1109, -73.422 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Norwalk Hospital Plant?

Norwalk Hospital Plant is a 4 MW source-record gas power plant in Connecticut, United States of America, commissioned in 2008.

How much electricity does Norwalk Hospital Plant generate?

Norwalk Hospital Plant generates about 9 GWh of electricity per year.

How many homes can Norwalk Hospital Plant power?

Its output is enough to supply roughly 2,628 homes.

Who operates Norwalk Hospital Plant?

Norwalk Hospital Plant is operated by Norwalk Hospital.

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