Home / North America / United States of America / Grays Ferry Cogeneration

Grays Ferry Cogeneration — United States of America

Gas power plant in Pennsylvania, United States of America. Approximate location 39.9422, -75.1881.

GasPennsylvaniaUnited States of AmericaSteamCO₂ modelled

Grays Ferry Cogeneration is a 192.6 MW gas power station in Pennsylvania, United States of America. It is operated by Grays Ferry Cogen Partnership. Based on reported annual generation of 1,003 GWh, it can supply roughly 286k homes. It ranks #2031 of 10,884 United States of America power plants by installed capacity. Commissioned in 1997, it is around 29 years old — long-established. Its modelled annual emissions are 291,800 t CO₂/yr (Climate TRACE), equivalent to about 68k 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).

192.6MW installed capacity
1,003GWh reported / yr
286,485homes powered
291,800t CO₂ / yr (Climate TRACE)
1997commissioned (~29 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0054785.

Data status

Known data

FacilityGrays Ferry Cogeneration WRI
CountryUnited States of America · Pennsylvania WRI
Coordinates39.9422, -75.1881 WRI
FuelGas WRI
MW installed capacity192.6 MW GEM · 2026 · L100000402510; operating plant capacity
Verification noteQuality label backfilled from existing source-backed capacity provenance on 2026-07-05; capacity value was not changed. source-verified
OwnerGrays Ferry Cogen Partnership WRI
Commissioned1997 WRI
TechnologySteam WRI
GWh reported / yr1,003 GWh·a⁻¹ WRI

Modelled source data

CO₂ emissions291,800 t CO₂·a⁻¹ modelled · Climate TRACE

Calculated from dataset

Capacity rank in country#2031 / 10884 calculated
Fuel-specific rank in country#926 / 2165 calculated
Capacity vs country/fuel peers1.59× · 121.2 MW · n=2165 calculated
Homes-powered equivalent286,485 calculated from reported generation
Climate12.4°C · HDD 2,557 derived from coordinates
Environmental severityC3 · 38/100 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 · L100000402510; fuel: WRI GPPD

In context: how this plant compares

At 192.6 MW, Grays Ferry Cogeneration is well above the median gas plant in United States of America (121.2 MW). Technically it is described as Steam. 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.

~291,800 t CO₂/yr (modelled) — in everyday terms

This facility's annual emissions are roughly equivalent to:

5.3kmillion cubic feet of natural gas burned
61khomes' electricity use for a year
292kacres of US forest absorbing CO₂ for a year
0.04%of the CO₂ from all United States of America power plants with an emissions figure in PowerAtlas

Equivalencies via US EPA Greenhouse Gas Equivalencies; modelled emissions from Climate TRACE.

Key facts

Load factor
59%, from 1,003 GWh of reported generation; the median for 1622 gas plants in United States of America that report generation is 26%
Generation trend
913 GWh in 2014 and 1,003 GWh in 2019 (+10%)
Highest and lowest year
2017: 1,042 GWh; 2014: 913 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
782 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

2014: 913 GWh20142015: 0 GWh20152016: 0 GWh20162017: 1,042 GWh20172018: 998 GWh20182019: 1,003 GWh20191k GWh

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

Owner

Operated by Grays Ferry Cogen Partnership.

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 39.9°N — which shapes how much energy it can produce and how its output varies through the year.

12.4°Cannual mean temp
2,557heating degree-days (base 18°C)
534cooling degree-days (base 18°C)
35 melevation

Monthly mean temperature

J: 0 °CJF: 1 °CFM: 6 °CMA: 11 °CAM: 17 °CMJ: 22 °CJJ: 24 °CJA: 24 °CAS: 20 °CSO: 13 °CON: 8 °CND: 3 °CD24 °C

Heating degree-days here run 4% 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: 52/100 — 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 moderately corrosive environment (estimated ISO 9223 class C3 — Medium), with humidity / wetness the leading environmental stress.

C3ISO 9223 corrosivity (indicative)
38/100environmental-severity index
24.5°Cseasonal temperature swing
91 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 #926 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 39.9422, -75.1881 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Grays Ferry Cogeneration?

Grays Ferry Cogeneration is a 192.6 MW gas power plant in Pennsylvania, United States of America, commissioned in 1997.

How much electricity does Grays Ferry Cogeneration generate?

Grays Ferry Cogeneration generates about 1,003 GWh of electricity per year.

Who operates Grays Ferry Cogeneration?

Grays Ferry Cogeneration is operated by Grays Ferry Cogen Partnership.

How much CO₂ does Grays Ferry Cogeneration emit?

Grays Ferry Cogeneration has modelled emissions of about 291,800 tonnes of CO₂ per year (Climate TRACE).

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