Home / North America / United States of America / Algonquin Windsor Locks

Algonquin Windsor Locks — United States of America

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 #3240 of 10,884 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).

71MW installed 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 GEM · 2026 · L100000402473; operating plant capacity
Verification noteQuality label backfilled from existing source-backed capacity provenance on 2026-07-05; capacity value was not changed. source-verified
OwnerAlgonquin Windsor Locks LLC WRI
Commissioned1994 WRI
TechnologyCCGT · HRSG WRI
GWh reported / yr124 GWh·a⁻¹ WRI
CO₂ emissions87,638 t CO₂·a⁻¹ measured · US EPA GHGRP

Calculated from dataset

Capacity rank in country#3240 / 10884 calculated
Fuel-specific rank in country#1252 / 2165 calculated
Capacity vs country/fuel peers0.59× · 121.2 MW · n=2165 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

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

Data provenance

Source of the capacity and fuel values:

capacity: GEM · 2026 · L100000402473; fuel: WRI GPPD

In context: how this plant compares

At 71 MW, Algonquin Windsor Locks is below the median gas plant in United States of America (121.2 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:

1.6kmillion cubic feet of natural gas burned
18khomes' electricity use for a year
88kacres of US forest absorbing CO₂ for a year
0.01%of the CO₂ from all United States of America power plants with an emissions figure in PowerAtlas

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

Key facts

Load factor
20%, from 124 GWh of reported generation; the median for 1622 gas plants in United States of America that report generation is 26%
Generation trend
119 GWh in 2014 and 124 GWh in 2019 (+4%)
Highest and lowest year
2018: 162 GWh; 2015: 112 GWh
Share of United States of America gas capacity
less than 0.1% of 789,950 MW across 2,165 plants in this dataset
Age among peers
677 of 1,973 dated gas plants in United States of America are older

Calculated from the capacity and generation records in this dataset (WRI Global Power Plant Database (CC BY 4.0)).

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

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

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 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.

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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