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Cerro Prieto I

Geothermal power plant in Baja California, Mexico. Approximate location 32.4161, -115.235.

GeothermalBaja CaliforniaMexico

Cerro Prieto I is a 30 MW geothermal power plant in Baja California, Mexico. Based on its capacity (estimated), it can supply roughly 56k homes (estimated). It ranks #240 of 366 Mexico power plants by installed capacity. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, the national grid averages 474 gCO₂/kWh (25.9% low-carbon) (2025).

30Source-backed capacity
56,314homes powered (est.)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id MEX0006611.

Data status

Known data

FacilityCerro Prieto I WRI
CountryMexico · Baja California WRI
Coordinates32.4161, -115.235 WRI
FuelGeothermal WRI
MW installed capacity30 MW WRI source record; scope not independently normalised

Calculated from dataset

Capacity rank in country#240 of 366 calculated
Fuel-specific rank in country#4 of 5 calculated
Capacity vs country/fuel peers0.44× · 69 MW median · 5 peers calculated
Homes-powered equivalent56,314 calculated
Climate21.5°C · HDD 524 derived from coordinates
Environmental severityC1 · 43/100 derived from coordinates

Not available

OwnerNot available not in dataset
CommissionedNot available not in dataset
TechnologyNot available not in dataset
GWh reported / yrNot available not in dataset
CO₂ emissionsnot applicable not applicable

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: GEM tracker 2026 (location L100000807073); fuel: WRI source-record fuel

In context: how this plant compares

At 30 MW, Cerro Prieto I is below the median geothermal plant in Mexico (69 MW). Geothermal plants tap underground heat to raise steam for a turbine; they provide steady, low-carbon baseload but are limited to geologically active regions.

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

Capacity vs largest geothermal plants in Mexico

Cerro Prieto: 570 MW570Cerro Prie…Los Azufres: 225 MW225Los AzufresLos Humeros: 69 MW69Los HumerosCerro Prieto I: 30 MW30Cerro Prie…Las Tres Vírgenes: 10 MW10Las Tres V…

Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).

Local climate & thermal context

This geothermal plant taps underground heat to raise steam that drives a turbine. It sits in a hot desert climate (Köppen BWh) — Northern Hemisphere, latitude 32.4°N — which shapes how much energy it can produce and how its output varies through the year.

21.5°Cannual mean temp
524heating degree-days (base 18°C)
1,820cooling degree-days (base 18°C)
16 melevation

Monthly mean temperature

J: 12 °CJF: 14 °CFM: 17 °CMA: 20 °CAM: 24 °CMJ: 28 °CJJ: 31 °CJA: 31 °CAS: 29 °CSO: 23 °CON: 17 °CND: 12 °CD31 °C

Heating degree-days here run 79% 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 a benign, low-corrosion environment (estimated ISO 9223 class C1 — Very low), with dust abrasion the leading environmental stress.

C1ISO 9223 corrosivity (indicative)
43/100environmental-severity index
19.0°Cseasonal temperature swing
118 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 #4 largest geothermal power plant of 5 in Mexico by capacity.

Mexico has 5 geothermal power plants in this dataset, together about 904 MW of capacity.

Nearby power plants

Location

Coordinates 32.4161, -115.235 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Cerro Prieto I?

Cerro Prieto I is a 30 MW source-record geothermal power plant in Baja California, Mexico.

How many homes can Cerro Prieto I power?

Its output is enough to supply roughly 56,314 homes (estimated).

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