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Tesoro Mandan Cogeneration Plant

Gas power plant in North Dakota, United States of America. Approximate location 46.8492, -100.8808.

GasNorth DakotaUnited States of America

Tesoro Mandan Cogeneration Plant is a 8 MW gas power plant in North Dakota, United States of America. It is operated by Tesoro Refining and Marketing Co LLC. Based on reported annual generation of 60 GWh, it can supply roughly 17,057 homes. It ranks #5078 of 9,833 United States of America power plants by installed capacity. Commissioned in 1955, it is around 71 years old — an older, legacy facility. 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).

8MW installed capacity
60GWh reported / yr
17,057homes powered
1955commissioned (~71 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0052133.

~23,880 t CO₂/yr (estimated) — in everyday terms

This facility's annual emissions are roughly equivalent to:

5,566passenger cars driven for a year
3,114homes' yearly energy use
398,000tree 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: 59 GWh20132014: 62 GWh20142015: 61 GWh20152016: 60 GWh20162017: 50 GWh20172018: 61 GWh20182019: 60 GWh201962 GWh

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

Owner

Operated by Tesoro Refining and Marketing Co LLC. All plants by this company →

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 humid continental climate (Köppen Dfb) — Northern Hemisphere, latitude 46.8°N — which shapes how much energy it can produce and how its output varies through the year.

5.8°Cannual mean temp
4,627heating degree-days (base 18°C)
218cooling degree-days (base 18°C)
513 melevation

Monthly mean temperature

J: -12 °CJF: -8 °CFM: -2 °CMA: 6 °CAM: 13 °CMJ: 19 °CJJ: 22 °CJA: 21 °CAS: 15 °CSO: 8 °CON: -2 °CND: -9 °CD22 °C

Heating degree-days here run 88% 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: 92/100 — this site sits in the top 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 #1488 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 46.8492, -100.8808 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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