The national numbers, and the basis each one is counted on
Most disagreements about the size of Mexico's renewable fleet are not disagreements about facts. They are two people quoting different counting conventions. A CFO reading a supplier deck, a state investment brochure and a trade association press release will see three different capacity figures for the same country in the same year, and none of them is necessarily wrong. This article sets out which basis applies to which number, because that is what determines whether a figure belongs in your model.
NREL's April 2022 assessment, Mexico: North American Clean Energy Powerhouse, separates the two solar counts that get conflated. Utility-scale photovoltaic capacity in Mexico stood at 6,160 MW in 2021. Distributed generation, almost all of it rooftop solar, stood at 2,015 MW. Those are separate fleets under separate rules, and adding them into a single "solar capacity" line without saying so is how a 6 GW market becomes an 8 GW market in a slide.
Wind is where the sources genuinely disagree, and the honest treatment is to give both. AMDEE, the Mexican wind association, reported 7,154 MW installed across 68 wind farms in 14 states, with about 3,100 turbines, as of May 2021 (Infobae, 19 May 2021). NREL carries the same 7,154 MW figure for 2021. SENER's PRODESEN 2022-2036 records 6,977 MW of wind capacity in the Sistema Eléctrico Nacional at 31 December 2021. The gap is a counting convention. AMDEE counts commissioned wind farms. PRODESEN counts capacity registered in the national system. Use whichever matches your question and say which one you used.
Geothermal is smaller and is frequently misreported as an output figure. It is capacity. SENER's PRODESEN records 976 MW installed in the Sistema Eléctrico Nacional at 31 December 2021. NREL's April 2022 report gives 1,048 MW installed and 1,006 MW operating for the same period. Mexico's geothermal fleet is dominated by CFE's Cerro Prieto complex in Baja California.
Clean energy and renewable energy are not the same target
The statutory target Mexican policy is measured against is a clean energy target, not a renewables target, and the difference is worth several percentage points. The Ley de Transición Energética sets, in its Transitorio Tercero, a minimum 35% clean-energy share of electricity generation by 2024, with interim points of 25% by 2018 and 30% by 2021.
Energías limpias is defined in Article 3 of the Ley de la Industria Eléctrica and reaches beyond wind, solar, hydro, geothermal and biomass. It expressly includes nuclear generation, efficient cogeneration meeting CRE efficiency criteria, thermal plants with geological carbon capture and storage, biogas and methane capture, and hydrogen combustion meeting the stated efficiency and lifecycle criteria. Laguna Verde's nuclear output counts toward the 35%. So does a well-designed gas cogeneration plant inside an industrial site.
That matters for the headline share. NREL reports that in 2021 Mexico generated 86.27 TWh, or 26.7% of its electricity, from clean energy resources. Read as a renewables share, that number is too high. Read as what it is, a clean-energy share including nuclear, large hydro and efficient cogeneration, it is the correct comparison against the 35% target. NREL puts the gap at 42.56 TWh of additional clean generation needed by 2024, against a 2024 demand estimate of 365 TWh and demand growth of 12.7% from 2021.
For an industrial site, the practical consequence is direct. If your parent company's sustainability commitment is written in renewable terms, cogeneration and nuclear-backed grid supply will not satisfy it even though they satisfy Mexican statute. Check which definition your reporting obligation actually uses before you procure against it.
Technical potential is not a project pipeline
NREL's April 2022 report puts Mexico's national technical potential at 24,918 GW of solar photovoltaics and 3,669 GW of wind, plus 2.5 GW of conventional geothermal and 1.2 GW of additional hydropower from repowering. Regionally, the southeast holds 5,561 GW of solar PV potential and 744 GW of wind, the northeast holds 670 GW of wind, and Baja California Sur holds 743 GW of solar PV, 516 GW of concentrating solar power, 110 GW of wind and 154 MW of conventional geothermal.
Set those against the 6,160 MW of utility-scale solar actually installed. The potential figures run to roughly four thousand times that because they measure land area multiplied by resource quality, with no reference to transmission, interconnection queues, offtake or capital. They are a resource inventory. They are not a forecast, and they are not a supply curve. Treat any commercial argument that leans on a technical-potential number as unsupported until it shows a node, an interconnection study and a route to offtake.
Where the capacity actually sits
Deployment is concentrated. On NREL's 2021 state tables, Sonora led utility-scale solar with 1,326 MW, followed by Aguascalientes at 907 MW and Chihuahua at 828 MW. Oaxaca led wind at 2,758 MW, followed by Tamaulipas at 1,715 MW and Nuevo León at 793 MW.
The plants behind those numbers are worth knowing by name, because their history corrects two claims that circulate widely. Mexico's first utility-scale solar plant was Aura Solar I at La Paz, Baja California Sur, a 39 MW project inaugurated in March 2014 and reported at the time as the largest photovoltaic plant in Latin America. Enel Green Power's 828 MW Villanueva plant at Viesca, Coahuila, was inaugurated in March 2018 as the largest solar photovoltaic plant in the Americas. Acciona and Tuto Energy's Puerto Libertad plant in Sonora, 404.6 MWp of DC panel rated at 317.5 MW AC, entered operation in 2019.
On the wind side, Mexico did not start in 2009. CFE built and commissioned a pilot wind plant at La Venta, Oaxaca, in 1994, with seven 225 kW turbines totaling about 1.5 MW, and La Venta II, at 83.3 MW, entered operation in January 2007 (Revista Digital Universitaria, UNAM, December 2007). Acciona's 250.5 MW Eurus plant, 167 turbines at La Venta in Juchitán de Zaragoza, was commissioned in 2009 as a self-supply project for CEMEX. Eurus is the one to remember, because it is an autoabasto structure, and autoabasto is the part of the market that changed hardest after 2020.
What this overview does not settle
Three questions sit underneath these numbers and each needs its own treatment. Wind's near-term investment outlook turned on regulatory certainty rather than resource, and we cover that in what actually decides the outcome for wind energy in Mexico. The utility-scale solar build, including CFE's Puerto Peñasco program, is covered in the benefits of utility-scale solar in Mexico. The state-level case, and why transmission rather than irradiance is the binding constraint in the northwest, is in strong fundamentals for solar power in Sonora.
One institutional point runs through all three. CRE is the regulator. It issues generation and supply permits, approves regulated tariffs and issues the disposiciones governing distributed generation and qualified users. CENACE is the independent system operator and market operator. SENER sets policy and issues the PRODESEN. CFE is a state productive enterprise and a market participant, and CFE Suministro Básico, CFE Calificados, CFE Distribución and CFE Transmisión are separate businesses within it. CFE is not a regulator, and any analysis that treats it as one will mis-price permitting and interconnection risk.
Decide which of these numbers belongs in your energy plan
Mexico Energy Partners can work through which of these capacity, target and potential figures bear on a specific site, and translate them into procurement options: onsite generation below the 0.5 MW distributed threshold, registration as a Usuario Calificado at 1 MW of demand or above, or an offsite contract priced with porteo included. An initial review needs 12 months of CFE billing, the site's tariff class and interval data where a meter records it.
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