Phillips 66 Carbon Plant — United States of America

Phillips 66 Carbon Plant is a 27.3 MW petcoke power plant in California, United States of America. It is operated by Phillips 66 Company. Based on reported annual generation of 85 GWh, it can supply roughly 24k homes. It ranks #4346 of 10,884 United States of America power plants by installed capacity. Commissioned in 1984, it is around 42 years old — long-established. In context, the national grid averages 384 gCO₂/kWh (43.0% low-carbon) (2025).

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0050388.

Data provenance

Source of the capacity and fuel values:

capacity: Wikidata P2109; fuel: WRI GPPD

In context: how this plant compares

At 27.3 MW, Phillips 66 Carbon Plant is below the median petcoke plant in United States of America (68 MW). This facility converts its energy source into electricity for the grid; its capacity, fuel type and location determine its role in the national power mix.

Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.

Key facts

Load factor

36%, from 85 GWh of reported generation; the median for 11 petcoke plants in United States of America that report generation is 34%

Share of United States of America petcoke capacity

1.2% of 2,366 MW across 11 plants in this dataset

Age among peers

5 of 11 dated petcoke 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

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

Owner

Operated by Phillips 66 Company.

Local climate & thermal context

This petcoke plant generates electricity for the grid. It sits in a warm-summer Mediterranean climate (Köppen Csb) — Northern Hemisphere, latitude 38.0°N — which shapes how much energy it can produce and how its output varies through the year.

Monthly mean temperature

Heating degree-days here run 46% 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: 31/100 — this site sits in the bottom third of the power plants we cover by heating degree-days.

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.

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 #8 largest petcoke power plant of 11 in United States of America by capacity.

United States of America has 11 petcoke power plants in this dataset, together about 2,366 MW of capacity.

Nearby power plants

• Phillips 66 Rodeo Refinery · Gas · 54.9 MW · California
• C&H Sugar Plant · Other · 8 MW · California
• Crockett Cogen Project · Gas · 247.4 MW · California
• Valero Refinery Cogeneration Unit 1 · Gas · 50 MW · California
• Martinez Sulfuric Acid Regeneration Plt · Cogeneration · 4 MW · California
• Martinez Refining · Gas · 100 MW · California

Location

Coordinates 38.0181, -122.2344 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions