Tesoro Hawaii

Oil power plant in Hawaii, United States of America. Approximate location 21.3032, -158.0914.

OilHawaiiUnited States of AmericaCO₂ reported

Tesoro Hawaii is a 20 MW oil power plant in Hawaii, United States of America. It is operated by PAR Petroleum. Based on reported annual generation of 166 GWh, it can supply roughly 47,485 homes. It ranks #3814 of 9,833 United States of America power plants by installed capacity. Commissioned in 1983, it is around 43 years old — long-established. Its measured emissions of 13,136 t CO₂/yr (Climate TRACE) are equivalent to about 3,062 cars driven for a year. In context, oil supplies about 0.7% of United States of America's electricity; the national grid averages 384 gCO₂/kWh (43.0% low-carbon) (2025).

20MW installed capacity
166GWh reported / yr
47,485homes powered
13,136t CO₂ / yr (Climate TRACE)
1983commissioned (~43 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0010093.

13,136 t CO₂/yr — in everyday terms

This facility's annual emissions are roughly equivalent to:

3,062passenger cars driven for a year
1,713homes' yearly energy use
218,933tree seedlings grown 10 years to absorb it

Equivalencies via US EPA Greenhouse Gas Equivalencies; emissions reported to Climate TRACE.

Reported generation trend

2013: 91 GWh20132014: 147 GWh20142015: 150 GWh20152016: 146 GWh20162017: 156 GWh20172018: 154 GWh20182019: 166 GWh2019166 GWh

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

Owner

Operated by PAR Petroleum.

Local climate & thermal context

This oil plant burns oil or diesel to drive turbines or reciprocating engines. It sits in a tropical savanna climate (Köppen As) — Northern Hemisphere, latitude 21.3°N — which shapes how much energy it can produce and how its output varies through the year.

24.8°Cannual mean temp
0heating degree-days (base 18°C)
2,471cooling degree-days (base 18°C)
11 melevation

Monthly mean temperature

J: 22 °CJF: 22 °CFM: 23 °CMA: 24 °CAM: 25 °CMJ: 26 °CJJ: 27 °CJA: 27 °CAS: 27 °CSO: 26 °CON: 25 °CND: 23 °CD27 °C

Heating degree-days here run 100% below 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: 13/100 — this site sits in the bottom 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.

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 #205 largest oil power plant of 876 in United States of America by capacity.

United States of America has 876 oil power plants in this dataset, together about 37,143 MW of capacity.

Nearby power plants

Location

Coordinates 21.3032, -158.0914 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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