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Algonquin Windsor Locks

Gas power plant in Connecticut, United States of America. Approximate location 41.9227, -72.6255.

GasConnecticutUnited States of AmericaCCGT · HRSGCO₂ measured

Algonquin Windsor Locks is a 71 MW gas power plant in Connecticut, United States of America. It is operated by Algonquin Windsor Locks LLC. Based on reported annual generation of 124 GWh, it can supply roughly 35k homes. It ranks #3295 of 10,938 United States of America power plants by installed capacity. Commissioned in 1994, it is around 32 years old — long-established. Its annual emissions of 87,638 t CO₂/yr (US EPA GHGRP) are equivalent to about 20k cars driven for a year. 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).

71Source-backed capacity
1HRSG unit(s)
124GWh reported / yr
35,457homes powered
87,638t CO₂ / yr (US EPA GHGRP)
1994commissioned (~32 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0010567.

Data status

Known data

FacilityAlgonquin Windsor Locks WRI
CountryUnited States of America · Connecticut WRI
Coordinates41.9227, -72.6255 WRI
FuelGas WRI
MW installed capacity71 MW WRI source record; scope not independently normalised
OwnerAlgonquin Windsor Locks LLC WRI
Commissioned1994 WRI
TechnologyCCGT · HRSG WRI
GWh reported / yr124 GWh/yr WRI
CO₂ emissions87,638 t CO₂/yr measured · US EPA GHGRP

Calculated from dataset

Capacity rank in country#3295 of 10938 calculated
Fuel-specific rank in country#1252 of 2165 calculated
Capacity vs country/fuel peers0.59× · 121 MW median · 2165 peers calculated
Homes-powered equivalent35,457 calculated from reported generation
Climate9.1°C · HDD 3,441 derived from coordinates
Environmental severityC3 · 34/100 derived from coordinates

Not available

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/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: GEM tracker 2026 (location L100000402473); fuel: WRI source-record fuel

In context: how this plant compares

At 71 MW, Algonquin Windsor Locks is below the median gas plant in United States of America (121 MW). Technically it is described as CCGT; combined-cycle with a heat-recovery steam generator (HRSG). 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.

87,638 t CO₂/yr — in everyday terms

This facility's annual emissions are roughly equivalent to:

20kpassenger cars driven for a year
11khomes' yearly energy use
1.5 milliontree seedlings grown 10 years to absorb it

Equivalencies via US EPA Greenhouse Gas Equivalencies; emissions per US EPA GHGRP (measured for US EPA/EU ETS, modelled for Climate TRACE).

Reported generation trend

2013: 0 GWh20132014: 119 GWh20142015: 112 GWh20152016: 140 GWh20162017: 129 GWh20172018: 162 GWh20182019: 124 GWh2019162 GWh

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

Owner

Operated by Algonquin Windsor Locks LLC.

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 hot-summer humid continental climate (Köppen Dfa) — Northern Hemisphere, latitude 41.9°N — which shapes how much energy it can produce and how its output varies through the year.

9.1°Cannual mean temp
3,441heating degree-days (base 18°C)
204cooling degree-days (base 18°C)
183 melevation

Monthly mean temperature

J: -4 °CJF: -3 °CFM: 2 °CMA: 8 °CAM: 14 °CMJ: 18 °CJJ: 22 °CJA: 21 °CAS: 17 °CSO: 11 °CON: 5 °CND: -1 °CD22 °C

Heating degree-days here run 40% 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: 74/100 — this site sits in the top 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 moderately corrosive environment (estimated ISO 9223 class C3 — Medium), with thermal cycling the leading environmental stress.

C3ISO 9223 corrosivity (indicative)
34/100environmental-severity index
25.5°Cseasonal temperature swing
110 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 #1252 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 41.9227, -72.6255 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Algonquin Windsor Locks?

Algonquin Windsor Locks is a 71 MW source-record gas power plant in Connecticut, United States of America, commissioned in 1994.

How much electricity does Algonquin Windsor Locks generate?

Algonquin Windsor Locks generates about 124 GWh of electricity per year.

How many homes can Algonquin Windsor Locks power?

Its output is enough to supply roughly 35,457 homes.

Who operates Algonquin Windsor Locks?

Algonquin Windsor Locks is operated by Algonquin Windsor Locks LLC.

How much CO₂ does Algonquin Windsor Locks emit?

Algonquin Windsor Locks has measured emissions of about 87,638 tonnes of CO₂ per year (US EPA GHGRP).

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