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Milford Power Project — United States of America

Gas power plant in Connecticut, United States of America. Approximate location 41.2244, -73.0997.

GasConnecticutUnited States of AmericaCO₂ measured

Milford Power Project is a 578 MW gas power station in Connecticut, United States of America. It is operated by Milford Power Co LLC. Based on reported annual generation of 3,714 GWh, it can supply roughly 1.1 million homes. It ranks #1103 of 10,884 United States of America power plants by installed capacity. Commissioned in 2004, it is around 22 years old — relatively modern. Its annual emissions of 1,425,973 t CO₂/yr (US EPA GHGRP) are equivalent to about 332k 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).

578MW installed capacity
3,714GWh reported / yr
1,061,085homes powered
1,425,973t CO₂ / yr (US EPA GHGRP)
2004commissioned (~22 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0055126.

Data status

Known data

FacilityMilford Power Project WRI
CountryUnited States of America · Connecticut WRI
Coordinates41.2244, -73.0997 WRI
FuelGas WRI
MW installed capacity578 MW GEM · 2026 · L100000402091; operating plant capacity
Verification noteQuality label backfilled from existing source-backed capacity provenance on 2026-07-05; capacity value was not changed. source-verified
OwnerMilford Power Co LLC WRI
Commissioned2004 WRI
GWh reported / yr3,714 GWh·a⁻¹ WRI
CO₂ emissions1,425,973 t CO₂·a⁻¹ measured · US EPA GHGRP

Calculated from dataset

Capacity rank in country#1103 / 10884 calculated
Fuel-specific rank in country#509 / 2165 calculated
Capacity vs country/fuel peers4.77× · 121.2 MW · n=2165 calculated
Homes-powered equivalent1,061,085 calculated from reported generation
Climate11.2°C · HDD 2,817 derived from coordinates
Environmental severityC4 · 44/100 derived from coordinates

Not available

TechnologyNot available not in dataset

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 · L100000402091; fuel: WRI GPPD

In context: how this plant compares

At 578 MW, Milford Power Project is well above the median gas plant in United States of America (121.2 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.

1,425,973 t CO₂/yr — in everyday terms

This facility's annual emissions are roughly equivalent to:

26kmillion cubic feet of natural gas burned
332kgasoline cars driven for a year
426wind turbines running for a year
0.19%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
73%, from 3,714 GWh of reported generation; the median for 1622 gas plants in United States of America that report generation is 26%
Generation trend
3,488 GWh in 2015 and 3,714 GWh in 2019 (+6%)
Highest and lowest year
2019: 3,714 GWh; 2017: 2,997 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
1,249 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: 0 GWh20142015: 3,488 GWh20152016: 3,168 GWh20162017: 2,997 GWh20172018: 3,670 GWh20182019: 3,714 GWh20194k GWh

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

Owner

Operated by Milford Power Co 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 humid subtropical climate (Köppen Cfa) — Northern Hemisphere, latitude 41.2°N — which shapes how much energy it can produce and how its output varies through the year.

11.2°Cannual mean temp
2,817heating degree-days (base 18°C)
367cooling degree-days (base 18°C)
3 melevation

Monthly mean temperature

J: 0 °CJF: 0 °CFM: 4 °CMA: 9 °CAM: 14 °CMJ: 20 °CJJ: 23 °CJA: 23 °CAS: 19 °CSO: 14 °CON: 8 °CND: 3 °CD23 °C

Heating degree-days here run 15% 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: 57/100 — 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

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

C4ISO 9223 corrosivity (indicative)
44/100environmental-severity index
23.4°Cseasonal temperature swing
9 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 #509 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 41.2244, -73.0997 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Milford Power Project?

Milford Power Project is a 578 MW gas power plant in Connecticut, United States of America, commissioned in 2004.

How much electricity does Milford Power Project generate?

Milford Power Project generates about 3,714 GWh of electricity per year.

Who operates Milford Power Project?

Milford Power Project is operated by Milford Power Co LLC.

How much CO₂ does Milford Power Project emit?

Milford Power Project has measured emissions of about 1,425,973 tonnes of CO₂ per year (US EPA GHGRP).

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