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Eoliatec del Istmo

Wind power plant in Oaxaca, Mexico. Approximate location 16.4406, -94.9912.

WindOaxacaMexicoOnshore

Eoliatec del Istmo is a 164 MW wind power station in Oaxaca, Mexico. It is operated by Eoliatec Del Istmo S. A. P. I. De C. V.. Based on its capacity (estimated), it can supply roughly 140k homes (estimated). It ranks #149 of 366 Mexico power plants by installed capacity. Commissioned in 2014, it is around 12 years old — relatively modern. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, wind supplies about 6.0% of Mexico's electricity; the national grid averages 474 gCO₂/kWh (25.9% low-carbon) (2025).

164Legacy source-record capacity
139,559homes powered (est.)
2014commissioned (~12 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id MEX0001871.

Data status

Known data

FacilityEoliatec del Istmo WRI
CountryMexico · Oaxaca WRI
Coordinates16.4406, -94.9912 WRI
FuelWind WRI
MW installed capacity164 MW WRI source record; scope not independently normalised
OwnerEoliatec Del Istmo S. A. P. I. De C. V. WRI
Commissioned2014 WRI
TechnologyOnshore WRI

Calculated from dataset

Capacity rank in country#149 of 366 calculated
Fuel-specific rank in country#2 of 20 calculated
Capacity vs country/fuel peers1.95× · 84 MW median · 20 peers calculated
Homes-powered equivalent139,559 calculated
Climate27.2°C · HDD 0 derived from coordinates
Environmental severityC5 · 49/100 derived from coordinates

Not available

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.

Capacity provenance

The public capacity above is the current source-record value. A 2026 tracker candidate lists 396 MW for Eolica Del Sur wind farm, but it is not used as the public primary value until scope is verified (unit vs operating vs installed/project total).

Capacity claim grade: B_SCOPE_PARENT_COMPLEX - recommended action: build_parent_complex_model - confidence: not_comparable_without_scope. This follows a claim-based data model: value + scope + source + confidence, rather than silently overwriting records.

Data provenance

The capacity and fuel fields on this page are source-record values from the upstream open dataset. They are useful for identification and ranking, but they have not been upgraded to a 2026 registry/GEM-location verified value.

capacity: WRI Global Power Plant Database source-record (legacy); fuel: WRI source-record fuel

In context: how this plant compares

At 164 MW, Eoliatec del Istmo is well above the median wind plant in Mexico (84 MW). Technically it is described as Onshore. Wind turbines convert moving air into electricity; output is variable and site-dependent, and modern turbines deliver some of the lowest-cost new generation on many grids.

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

Capacity vs largest wind plants in Mexico

Eurus: 250 MW250EurusEoliatec del Istmo: 164 MW164Eoliatec d…La Venta III: 103 MW103La Venta I…La Mata: 102 MW102La MataOaxaca I: 102 MW102Oaxaca IOaxaca II: 102 MW102Oaxaca IIOaxaca III: 102 MW102Oaxaca IIIOaxaca IV: 102 MW102Oaxaca IV

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

Owner

Operated by Eoliatec Del Istmo S. A. P. I. De C. V..

Local climate & thermal context

This wind plant converts the kinetic energy of wind into electricity through turbine rotors. It sits in a tropical savanna climate (Köppen Aw) — Northern Hemisphere, latitude 16.4°N — which shapes how much energy it can produce and how its output varies through the year.

27.2°Cannual mean temp
0heating degree-days (base 18°C)
3,374cooling degree-days (base 18°C)
12 melevation

Monthly mean temperature

J: 25 °CJF: 25 °CFM: 27 °CMA: 29 °CAM: 30 °CMJ: 28 °CJJ: 28 °CJA: 28 °CAS: 28 °CSO: 27 °CON: 26 °CND: 25 °CD30 °C

This site has effectively no heating season (tropical/equatorial climate), so winter heat loss is not the driver here. The thermal concern shifts to year-round process heat and humidity/heat-driven corrosion of hot equipment.

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)
49/100environmental-severity index
4.7°Cseasonal temperature swing
36 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 #2 largest wind power plant of 20 in Mexico by capacity.

Mexico has 20 wind power plants in this dataset, together about 1,587 MW of capacity.

Nearby power plants

Location

Coordinates 16.4406, -94.9912 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Eoliatec del Istmo?

Eoliatec del Istmo is a 164 MW source-record wind power plant in Oaxaca, Mexico, commissioned in 2014.

How many homes can Eoliatec del Istmo power?

Its output is enough to supply roughly 139,559 homes (estimated).

Who operates Eoliatec del Istmo?

Eoliatec del Istmo is operated by Eoliatec Del Istmo S. A. P. I. De C. V..

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