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March Point Cogeneration

Gas power plant in Washington, United States of America. Approximate location 48.4708, -122.56.

GasWashingtonUnited States of America

March Point Cogeneration is a 140 MW gas power station in Washington, United States of America. It is operated by March Point Cogeneration Co. Based on reported annual generation of 955 GWh, it can supply roughly 272,857 homes. It ranks #1612 of 9,833 United States of America power plants by installed capacity. Commissioned in 1991, it is around 35 years old — long-established. 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).

140MW installed capacity
955GWh reported / yr
272,857homes powered
1991commissioned (~35 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0054268.

~382,000 t CO₂/yr (estimated) — in everyday terms

This facility's annual emissions are roughly equivalent to:

89,044passenger cars driven for a year
49,817homes' yearly energy use
6,366,667tree seedlings grown 10 years to absorb it

Estimated, not measured: from reported annual generation × a typical gas emission factor (~400 g CO₂/kWh, IPCC AR5 / US EIA). Actual emissions depend on plant efficiency and running hours.Equivalencies via US EPA Greenhouse Gas Equivalencies.

Reported generation trend

2013: 0 GWh20132014: 0 GWh20142015: 0 GWh20152016: 0 GWh20162017: 0 GWh20172018: 0 GWh20182019: 955 GWh2019955 GWh

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

Owner

Operated by March Point Cogeneration Co.

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 warm-summer Mediterranean climate (Köppen Csb) — Northern Hemisphere, latitude 48.5°N — which shapes how much energy it can produce and how its output varies through the year.

10.6°Cannual mean temp
2,707heating degree-days (base 18°C)
0cooling degree-days (base 18°C)
8 melevation

Monthly mean temperature

J: 4 °CJF: 6 °CFM: 8 °CMA: 10 °CAM: 13 °CMJ: 15 °CJJ: 17 °CJA: 18 °CAS: 15 °CSO: 11 °CON: 7 °CND: 4 °CD18 °C

Heating degree-days here run 10% 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: 55/100 — this site sits in the mid third of the power plants we cover by heating degree-days.

In colder climates, uninsulated hot equipment (boilers, turbines, valves, steam lines) loses proportionally more heat to ambient air — exactly the loss Inzonex modular insulation is designed to cut.

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.

How it compares & nearby plants

The #781 largest gas power plant of 1818 in United States of America by capacity.

United States of America has 1818 gas power plants in this dataset, together about 546,436 MW of capacity.

Nearby power plants

Location

Coordinates 48.4708, -122.56 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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