Humboldt Bay

Gas power plant in California, United States of America. Approximate location 40.7415, -124.2103.

GasCaliforniaUnited States of AmericaCO₂ reported

Humboldt Bay is a 167 MW gas power station in California, United States of America. It is operated by Pacific Gas & Electric Co.. Based on reported annual generation of 405 GWh, it can supply roughly 115,771 homes. It ranks #1428 of 9,833 United States of America power plants by installed capacity. Commissioned in 2010, it is around 16 years old — relatively modern. Its measured emissions of 242,660 t CO₂/yr (Climate TRACE) are equivalent to about 56,564 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).

167MW installed capacity
405GWh reported / yr
115,771homes powered
242,660t CO₂ / yr (Climate TRACE)
2010commissioned (~16 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0000246.

242,660 t CO₂/yr — in everyday terms

This facility's annual emissions are roughly equivalent to:

56,564passenger cars driven for a year
31,646homes' yearly energy use
4,044,333tree seedlings grown 10 years to absorb it

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

Reported generation trend

2013: 358 GWh20132014: 346 GWh20142015: 402 GWh20152016: 367 GWh20162017: 432 GWh20172018: 384 GWh20182019: 405 GWh2019432 GWh

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

Owner

Operated by Pacific Gas & Electric Co.. 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 Mediterranean climate (Köppen Csb) — Northern Hemisphere, latitude 40.7°N — which shapes how much energy it can produce and how its output varies through the year.

11.7°Cannual mean temp
2,293heating degree-days (base 18°C)
0cooling degree-days (base 18°C)
239 melevation

Monthly mean temperature

J: 8 °CJF: 8 °CFM: 9 °CMA: 10 °CAM: 12 °CMJ: 14 °CJJ: 16 °CJA: 17 °CAS: 16 °CSO: 13 °CON: 10 °CND: 8 °CD17 °C

Heating degree-days here run 7% 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: 48/100 — 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 #741 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 40.7415, -124.2103 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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