The El Quemado Solar Park has officially opened in the Las Heras department, in the province of Mendoza, and is already being talked about as the largest photovoltaic development in all of ArgentinaWith an installed capacity of 305 megawatts (MW), the complex has become a key component of the country's renewable energy strategy, in line with the new projects and challenges in the sector, and especially from this Cuyo province.
The project was initially promoted by the Mendoza Energy Company (Emesa) and later acquired and implemented by YPF Luz, the electricity subsidiary of the state-owned oil company. With an investment of approximately $220 million of mostly private capitalEl Quemado has become a symbol of the new wave of large solar projects in the region, and a case study for other markets, such as Spain and the rest of Europe, which are closely following the development of large-scale incentive frameworks.
A record-breaking photovoltaic park in the heart of Mendoza province
El Quemado is located in a desert area of the Las Heras department, in the north of the province of Mendoza, on a 620 hectares of surface area with very high solar radiationThe choice of location was not accidental: it is one of the points with the greatest solar resource in the country, comparable to the Atacama DesertThis allows for maximizing energy production and improving the project's competitiveness.
The power plant has more than 511.000 bifacial solar panels (some sources put the figure above 518.000 units), which are capable of generating electricity from both the front and back, harnessing the radiation reflected from the ground. These modules are mounted on 5.800 solar trackers that rotate from east to west following the sun during the day, a solution that significantly increases performance compared to fixed installations, a common solution in photovoltaic megaprojects.
To convert and manage the energy produced in direct current, the park has 1.170 investors and some 40 transformer substations distributed throughout the plant. The estimated capacity factor is around 31,4%, a high figure for a solar project of this size, placing El Quemado among the internationally referenced standards for large photovoltaic plants.
During the construction phasewhich lasted around 18 months from the beginning of 2025The project employed over 350 workers (other sources cite 400) with a very high percentage of local labor, around 87%. This combination of job creation, technology transfer, and the use of local resources has been highlighted as one of the project's strengths.
Capacity and impact: energy for more than 233.000 homes
The 305 MW capacity places El Quemado as Argentina's largest photovoltaic plantAccording to data released by YPF Luz and provincial authorities, the electricity produced will be sufficient to cover the equivalent consumption of more than 233.000 homes, a volume that corresponds to the residential demand of the City of Mendoza and the departments of Las Heras and Lavalle.
In terms of the national electricity system, the park represents approximately 11% of the country's total installed solar capacityFor a system that still relies heavily on fossil fuels, suddenly incorporating a renewable asset of this size represents a qualitative leap, both from the point of view of security of supply and emissions reduction.
The generated energy is injected into the Argentine Interconnection System (SADI) through a new transformer station and a substation with GIS technology and double busbars, designed to operate at 220 kV/33 kV with capacity for three transformersThe project also included the deployment of approximately 180 kilometers of fiber optic cable to integrate the control and protection systems, an infrastructure that is the responsibility of the transport company Distrocuyo.
A significant portion of the production is traded on the Energy Term Market (MAT), the platform where large industrial and commercial consumers sign long-term renewable energy supply contracts. This is particularly prevalent in Europe, where power purchase agreements (PPAs) have become the key tool for financing and ensuring the profitability of large solar and wind farms.
In terms of equipment, El Quemado integrates technology from top-tier international manufacturersJinko Solar supplied the panels, Arctech Solar the trackers, and Huawei the inverters and power electronics systems. The selection of suppliers and the scale of the project place it in the same category. technological league that many of the photovoltaic megaprojects being developed in southern Europe.
RIGI: the first major renewable energy project under the new investment regime
One of the most outstanding elements of El Quemado is that it is the The country's first renewable energy project submitted and implemented under the Large Investment Incentive Regime (RIGI)similar to initiatives such as the Arauco III wind farmThis regulatory framework, approved by the national government, seeks to attract large-scale capital for strategic infrastructure in sectors such as energy, mining, and transportation.
National authorities have presented the park as a kind of test case to evaluate the potential of RIGI when it comes to mobilizing private resources and providing regulatory predictability. The Chief of Staff's office has even indicated that, if the projects currently under evaluation are successful, the total investments linked to this regime could reach very high figures and generate a significant impact on the trade balance in the coming years.
The governor of Mendoza, Alfredo Cornejo, has insisted that the RIGI (Integrated Guarantee Fund) was created as a response to the structural problems of the Argentine economy, but he has also stressed that the underlying objective is to build a stable fiscal and regulatory environment that makes investment possible beyond exceptional regimes. In his statements, he has defended the need for a broad tax reform that benefits small and large companies equally.
From YPF Luz's perspective, El Quemado has been used to showcase the company's execution capacity in the renewable segmentIts president, Horacio Marín, has emphasized that the park was built in approximately one year and that, thanks to this type of project, the company has reached its first gigawatt of clean generation, placing itself among the main players in the Argentine renewable energy market.
For European analysts, the El Quemado experience offers clues as to how a targeted incentive scheme, combined with a financially strong energy company and institutional support, can accelerate the commissioning of large solar power plants. This is a particularly relevant issue in the European Union, where the debate centers on how to reconcile attracting investment with climate objectives and competition rules.
Mendoza consolidates its position as a renewable energy hub with over 700 MW of solar power.
The commissioning of El Quemado has allowed Mendoza easily exceeds 700 MW of installed solar capacity and reach approximately 775 MW of total renewable power, according to data provided by the provincial Energy and Environment Ministry. The province, which already had a significant clean energy generation base, is thus taking another leap forward in its energy mix, as is happening in European regions where, for example, The Balearic Islands will increase their renewable capacity by 25%..
In addition to El Quemado, the Mendoza region boasts other notable developments, such as the solar parks of Anchoris and San Rafael, both with 180 MWThese projects have been incorporated or expanded in recent times. In addition, there is a portfolio of projects in different stages that already exceeds 1.000 MW, with the stated objective of reaching one gigawatt of renewable power by 2030.
The provincial strategy is not limited to building power plants. It also involves significantly strengthening the electricity transport and distribution infrastructure, with actions in key transformer stations such as Valle de Uco and Mendoza Norte, and with new high voltage lines, including the one that will link San Rafael with General Alvear or the Marcado-La Dormida work.
The Mendoza government frames this deployment within a plan to improve the competitiveness of strategic sectors such as mining, industry, and regional economies. Having more abundant and stable electricity, with a growing percentage from renewable sources, is considered a basic requirement for attracting investment and reducing energy costs for households, SMEs, and large users.
From a Spanish and European perspective, Mendoza's experience demonstrates how a region with abundant solar resources can develop a long-term policy that combines public projects, private investment, and grid strengthening. A similar approach can be observed, for example, in autonomous communities such as Andalusia, Extremadura, and Castilla-La Mancha, which have leveraged their photovoltaic potential to position themselves as key players in the continental energy transition.
Economic model, local employment and lessons for Spain and Europe
El Quemado originated as a project designed by Emesa, the Mendoza Energy Company, which was later sold to YPF Luz for its construction and operation. This scheme of Initial public development and subsequent private implementation It has been highlighted as an effective formula for reducing risks in the early stages and, at the same time, leveraging the management capacity of the business sector.
During the construction phase, the project generated between 350 and 400 direct jobs, with a strong presence of local workers. This is in addition to the indirect jobs associated with services, logistics, supplies, and engineering. In a labor market that is still experiencing tension, this type of project is seen as an opportunity for to revitalize local economies far from major urban centers.
Mendoza's approach is also illustrative for the European context, where numerous countries, including Spain, are considering how to distribute the renewable energy value chain between global companies and local industry. In the case of El Quemado, the province has opted for do not impose a rigid “buy local” policybut rather to foster a competitive environment that attracts investment, while promoting the participation of Mendoza companies as much as possible.
In terms of technology, the Argentine solar park operates on similar levels to large-scale projects being built in Mediterranean Europe: use of bifacial panels, solar trackers, advanced electronics, and connection to reinforced high-voltage grids. The main difference lies in the regulatory framework, where the RIGI (General Investment in Energy) introduces specific incentives that, in the European Union, are typically implemented through auctions, contracts for difference, or other EU instruments.
For European markets, accustomed to a more homogeneous regulatory environment, the El Quemado experience suggests that a clear and stable incentive frameworkEven if it is of an extraordinary nature, it can significantly accelerate the commissioning of large renewable energy infrastructures. However, it also raises the debate about how to ensure that these schemes do not create distortions or become overly dependent on short-term economic conditions.
With the inauguration of El Quemado, Mendoza reinforces its role as one of the main clean energy hubs in Latin America, and Argentina adds a top-tier asset to its path toward a more diversified and low-emission electricity mix. The project offers valuable lessons for other regions with high solar potential, both in Spain and the rest of Europe, on how to combine natural resources, private investment, and public planning to develop large-scale photovoltaic plants with a real impact on the economy and the land, and to explore uses such as... green hydrogen production.
