Gas power plant in Yucatan, Mexico. Approximate location 20.9336, -89.6992.
GasYucatanMexicoCCGT · HRSGCO₂ modelled
Mérida III is a 505 MW gas power station in Yucatan, Mexico. It is operated by CFE/PIE. Based on its capacity (estimated), it can supply roughly 569k homes (estimated). It ranks #65 of 366 Mexico power plants by installed capacity. Commissioned in 2000, it is around 26 years old — long-established. Its modelled annual emissions are 230,890 t CO₂/yr (Climate TRACE), equivalent to about 54k cars driven for a year. In context, gas supplies about 61.6% of Mexico's electricity; the national grid averages 474 gCO₂/kWh (25.9% low-carbon) (2025).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id MEX0001803.
Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.
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 operating-unit sum (location L100000406231); fuel: WRI source-record fuel
At 505 MW, Mérida III is well above the median gas plant in Mexico (368 MW). Technically it is described as CCGT; combined-cycle with a heat-recovery steam generator (HRSG). Gas plants burn natural gas either in open-cycle turbines for fast peaking, or in combined-cycle units that recover exhaust heat in an HRSG to reach roughly 55–62% efficiency — the cleanest-burning fossil option.
Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.
This facility's annual emissions are roughly equivalent to:
Equivalencies via US EPA Greenhouse Gas Equivalencies; modelled emissions from Climate TRACE.
Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).
Operated by CFE/PIE. All plants by this company →
This gas plant burns natural gas in a turbine — often in a combined-cycle setup — to generate electricity. It sits in a tropical savanna climate (Köppen Aw) — Northern Hemisphere, latitude 20.9°N — which shapes how much energy it can produce and how its output varies through the year.
Monthly mean temperature
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.
A gas turbine here also runs ~8% 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.
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.
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.
The #44 largest gas power plant of 129 in Mexico by capacity.
Mexico has 129 gas power plants in this dataset, together about 58,538 MW of capacity.
Coordinates 20.9336, -89.6992 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Mérida III is a 505 MW source-record gas power plant in Yucatan, Mexico, commissioned in 2000.
Its output is enough to supply roughly 568,774 homes (estimated).
Mérida III is operated by CFE/PIE.
Mérida III has modelled emissions of about 230,890 tonnes of CO₂ per year (Climate TRACE).
