La Leonesa, Chaco, Argentina presents a moderately good location for year-round solar energy generation, though with notable seasonal variations typical of its Southern Sub Tropics climate zone.
Seasonal Solar Performance
The solar energy output at this location shows significant seasonal fluctuation. Summer delivers the strongest performance at 7.75 kWh per day per kW of installed solar capacity, making it the prime season for solar generation. Spring follows as the second-best performing season with 6.31 kWh per day per kW, while autumn drops to 5.01 kWh per day per kW. Winter presents the most challenging period for solar generation, producing only 3.74 kWh per day per kW of installed capacity. For optimal year-round energy production from a fixed panel installation at La Leonesa, Chaco, solar panels should be tilted at 23 degrees facing North. This angle has been calculated to maximize total annual solar output by accounting for the sun's path throughout the year and weighting optimal daily angles by solar irradiance potential.Environmental and Weather Challenges
Several local factors in La Leonesa could potentially impact solar energy production:- Humidity and moisture: The subtropical climate brings high humidity levels, which can reduce panel efficiency and promote corrosion of electrical components
- Dust accumulation: The region's dry periods can lead to dust buildup on panels, reducing their ability to capture sunlight effectively
- Severe weather events: Subtropical regions are prone to intense storms, hail, and strong winds that could damage solar installations
- Temperature fluctuations: High summer temperatures can reduce panel efficiency, while thermal cycling between seasons may stress system components
Preventative Installation Measures
To maximize solar energy production despite these challenges, several installation strategies should be considered. Using corrosion-resistant mounting hardware and electrical components rated for high humidity environments will help combat moisture-related degradation. Installing panels with adequate ventilation spacing underneath allows for better air circulation and cooling, which maintains efficiency during hot periods. Regular cleaning schedules become essential in this environment, particularly during dusty seasons. Installing panels at the recommended 23-degree tilt naturally helps with self-cleaning during rain events. For severe weather protection, choosing panels and mounting systems rated for high wind loads and hail impact provides crucial durability. Proper electrical system design with appropriate surge protection and weatherproof enclosures will help ensure consistent performance throughout the variable subtropical weather patterns that characterize La Leonesa's climate.Note: The Southern Sub Tropics extend from -23.5° latitude South down to -35° latitude.
So far, we have conducted calculations to evaluate the solar photovoltaic (PV) potential in 519 locations across Argentina. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.
Link: Solar PV potential in Argentina by location
Solar output per kW of installed solar PV by season in La Leonesa
Seasonal solar PV output for Latitude: -27.05, Longitude: -58.7167 (La Leonesa, Argentina), based on our analysis of 8760 hourly intervals of solar and meteorological data (one whole year) retrieved for that set of coordinates/location from NASA POWER (The Prediction of Worldwide Energy Resources) API:
 
Ideally tilt fixed solar panels 23° North in La Leonesa, Argentina
To maximize your solar PV system's energy output in La Leonesa, Argentina (Lat/Long -27.05, -58.7167) throughout the year, you should tilt your panels at an angle of 23° North for fixed panel installations.
As the Earth revolves around the Sun each year, the maximum angle of elevation of the Sun varies by +/- 23.45 degrees from its equinox elevation angle for a particular latitude. Finding the exact optimal angle to maximise solar PV production throughout the year can be challenging, but with careful consideration of historical solar energy and meteorological data for a certain location, it can be done precisely.
We use our own calculation, which incorporates NASA solar and meteorological data for the exact Lat/Long coordinates, to determine the ideal tilt angle of a solar panel that will yield maximum annual solar output. We calculate the optimal angle for each day of the year, taking into account its contribution to the yearly total PV potential at that specific location.
Seasonally adjusted solar panel tilt angles for La Leonesa, Argentina
If you can adjust the tilt angle of your solar PV panels, please refer to the seasonal tilt angles below for optimal solar energy production in La Leonesa, Argentina. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 23° North tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 11° North in Summer | 32° North in Autumn | 42° North in Winter | 20° North in Spring |
Our recommendations take into account more than just latitude and Earth's position in its elliptical orbit around the Sun. We also incorporate historical solar and meteorological data from NASA's Prediction of Worldwide Energy Resources (POWER) API to assign a weight to each ideal angle for each day based on its historical contribution to overall solar PV potential during a specific season.
This approach allows us to provide much more accurate recommendations than relying solely on latitude, as it considers unique weather conditions in different locations sharing the same latitude worldwide.
Calculate solar panel row spacing in La Leonesa, Argentina
We've added a feature to calculate minimum solar panel row spacing by location. Enter your panel size and orientation below to get the minimum spacing in La Leonesa, Argentina.
Our calculation method
- Solar Position:
We determine the Sun's position on the Winter solstice using the location's latitude and solar declination. - Shadow Projection:
We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle. - Minimum Spacing:
We add the shadow length to the horizontal space occupied by tilted panels.
This approach ensures maximum space efficiency while avoiding shading during critical times, as the Winter solstice represents the worst-case scenario for shadow length.
Topography for solar PV around La Leonesa, Argentina
Topographical Features Around La Leonesa
La Leonesa sits within the expansive Chaco region of northern Argentina, characterized by remarkably flat terrain that extends across vast distances. This area forms part of the Gran Chaco plain, one of South America's largest lowland regions, where elevation changes are minimal and the landscape appears almost uniformly level to the horizon. The topography consists primarily of gently undulating plains with subtle elevation variations rarely exceeding a few meters across considerable distances.
The region features a mix of natural grasslands, scattered woodlands, and agricultural areas that have been cleared for farming and livestock grazing. Small seasonal streams and wetlands dot the landscape, particularly during the rainy season, creating temporary water features that can influence local land use patterns. The soil composition varies from sandy loams to clay-rich areas, with some sections experiencing seasonal flooding that creates temporary marshlands.
Natural vegetation includes patches of dry forest and savanna-like grasslands, though much of the original ecosystem has been modified for agricultural purposes. The flat nature of the terrain means that natural drainage follows very gentle gradients, often creating areas where water collects during wet periods before slowly dispersing or evaporating.
Optimal Areas for Large-Scale Solar Development
The exceptionally flat topography around La Leonesa presents ideal conditions for large-scale solar photovoltaic installations. The minimal elevation changes eliminate the need for extensive site preparation or grading, significantly reducing construction costs and complexity. Areas to the west and southwest of La Leonesa appear particularly well-suited, where the terrain remains consistently level across extensive areas and existing agricultural use indicates good drainage characteristics.
The most promising locations for solar development would be the elevated sections of the plain that remain dry throughout the year, avoiding the seasonal wetlands and flood-prone areas closer to waterways. These slightly higher areas, though the elevation difference may only be a few meters, provide better long-term stability for solar infrastructure and reduce potential issues with flooding or waterlogging.
Agricultural areas that have been cleared of native vegetation offer immediate advantages, as the land preparation work has already been completed. These cleared zones typically have established access roads and may have existing electrical infrastructure nearby, reducing the overall development costs for solar projects. The absence of significant topographical obstacles means that solar arrays can be oriented optimally without concerns about shading from hills or valleys.
Areas with sandy or well-draining soils would be preferable to clay-rich zones that might retain water and create unstable foundations. The consistent flatness of the region allows for standardized installation techniques across large areas, making construction more efficient and predictable than in more varied terrain.
Argentina solar PV Stats as a country
Argentina ranks 43rd in the world for cumulative solar PV capacity, with 1,071 total MW's of solar PV installed. This means that 1.50% of Argentina's total energy as a country comes from solar PV (that's 35th in the world). Each year Argentina is generating 24 Watts from solar PV per capita (Argentina ranks 63rd in the world for solar PV Watts generated per capita). [source]
Are there incentives for businesses to install solar in Argentina?
Yes, there are several incentives for businesses wanting to install solar energy in Argentina. The government offers a range of tax credits and subsidies for businesses that invest in renewable energy projects. Additionally, the country has implemented a net metering system which allows businesses to sell excess electricity generated from their solar installations back to the grid at a premium rate. Finally, the government also provides access to low-interest loans and grants for businesses looking to invest in solar energy projects.
Do you have more up to date information than this on incentives towards solar PV projects in Argentina? Please reach out to us and help us keep this information current. Thanks!
Citation Guide
Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Friday 18th of July 2025
Last Updated: Wednesday 6th of August 2025
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Compare this location to others worldwide for solar PV potential
The solar PV analyses available on our website, including this one, are offered as a free service to the global community. Our aim is to provide education and aid informed decision-making regarding solar PV installations.
However, please note that these analyses are general guidance and may not meet specific project requirements. For in-depth, tailored forecasts and analysis crucial for feasibility studies or when pursuing maximum ROI from your solar projects, feel free to contact us; we offer comprehensive consulting services expressly for this purpose.
Helping you assess viability of solar PV for your site
Calculate Your Optimal Solar Panel Tilt Angle: A Comprehensive Guide
Enhance your solar panel's performance with our in-depth guide. Determine the best tilt angle using hard data, debunk common misunderstandings, and gain insight into how your specific location affects solar energy production.




