Caltech Central

Biomass power plant in California, United States of America. Approximate location 34.1358, -118.1267.

BiomassCaliforniaUnited States of America

Caltech Central is a 1 MW biomass power plant in California, United States of America. It is operated by Bloom Energy 2009 PPA. Based on reported annual generation of 8 GWh, it can supply roughly 2.2k homes. It ranks #10317 of 10,938 United States of America power plants by installed capacity. Commissioned in 2010, it is around 16 years old — relatively modern. In context, biomass supplies about 1.0% of United States of America's electricity; the national grid averages 384 gCO₂/kWh (43.0% low-carbon) (2025).

1Source-backed capacity
8GWh reported / yr
2,200homes powered
2010commissioned (~16 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0057460.

Data status

Known data

FacilityCaltech Central WRI
CountryUnited States of America · California WRI
Coordinates34.1358, -118.1267 WRI
FuelBiomass WRI
MW installed capacity1 MW WRI source record; scope not independently normalised
OwnerBloom Energy 2009 PPA WRI
Commissioned2010 WRI
GWh reported / yr8 GWh/yr WRI

Calculated from dataset

Capacity rank in country#10317 of 10938 calculated
Fuel-specific rank in country#171 of 184 calculated
Capacity vs country/fuel peers0.06× · 18 MW median · 184 peers calculated
Homes-powered equivalent2,200 calculated from reported generation
Climate18.5°C · HDD 560 derived from coordinates
Environmental severityC5 · 47/100 derived from coordinates

Not available

TechnologyNot available not in dataset
GWh reported / yrNot available not in dataset
CO₂ emissionsNot available not in dataset

Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.

Data provenance

The capacity and/or fuel fields on this page include a source-backed provenance label from GEM, an official registry, Wikidata, OSM, or a cross-source match.

capacity: Wikidata P2109 nameplate capacity; fuel: WRI source-record fuel

In context: how this plant compares

At 1 MW, Caltech Central is below the median biomass plant in United States of America (18 MW). Biomass plants burn organic material such as wood, residues or waste-derived fuel to raise steam; they are dispatchable and counted as low-carbon where the feedstock is sustainably sourced.

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

Reported generation trend

2013: 5 GWh20132014: 7 GWh20142015: 7 GWh20152016: 0 GWh20162017: 8 GWh20172018: 8 GWh20182019: 8 GWh20198 GWh

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

Owner

Operated by Bloom Energy 2009 PPA.

Local climate & thermal context

This biomass plant burns organic material (wood, residues) to raise steam for a turbine. It sits in a warm-summer Mediterranean climate (Köppen Csb) — Northern Hemisphere, latitude 34.1°N — which shapes how much energy it can produce and how its output varies through the year.

18.5°Cannual mean temp
560heating degree-days (base 18°C)
754cooling degree-days (base 18°C)
140 melevation

Monthly mean temperature

J: 13 °CJF: 14 °CFM: 15 °CMA: 17 °CAM: 19 °CMJ: 22 °CJJ: 24 °CJA: 24 °CAS: 23 °CSO: 20 °CON: 16 °CND: 13 °CD24 °C

Heating degree-days here run 77% 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: 21/100 — 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

For a plant’s outdoor hardware — heat-recovery steam generators (HRSG), expansion joints, valves, flanges and their insulation — the local climate sets how fast unprotected steel and coatings degrade. This site sits in an aggressive, high-corrosion environment (estimated ISO 9223 class C5 — Very high), with marine salt corrosion the leading environmental stress.

C5ISO 9223 corrosivity (indicative)
47/100environmental-severity index
11.1°Cseasonal temperature swing
5 kmdistance to coast

Higher environmental severity is exactly where protective removable insulation pays back most: a sheltered micro-climate slows corrosion, UV and thermal-cycling damage and extends outdoor hardware service life. This is an indicative site-climate context — not a condition assessment of any specific plant or operator.

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 #171 largest biomass power plant of 184 in United States of America by capacity.

United States of America has 184 biomass power plants in this dataset, together about 6,324 MW of capacity.

Nearby power plants

Location

Coordinates 34.1358, -118.1267 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Caltech Central?

Caltech Central is a 1 MW source-record biomass power plant in California, United States of America, commissioned in 2010.

How much electricity does Caltech Central generate?

Caltech Central generates about 8 GWh of electricity per year.

How many homes can Caltech Central power?

Its output is enough to supply roughly 2,200 homes.

Who operates Caltech Central?

Caltech Central is operated by Bloom Energy 2009 PPA.

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