Los Berros, San Juan, Argentina presents a moderately good location for year-round solar energy generation, though with notable seasonal variations that potential solar installers should consider carefully.
Seasonal Solar Performance
The solar energy output data reveals significant seasonal fluctuations at this Southern Sub Tropics location. Summer delivers the strongest performance at 8.24kWh per day per kW of installed solar capacity, making it an excellent time for solar generation. Spring follows closely behind with 7.92kWh per day per kW, representing nearly equivalent production levels. However, the cooler months present more challenging conditions. Autumn drops considerably to 5.09kWh per day per kW, while winter reaches the lowest point at just 4.30kWh per day per kW. This winter figure represents nearly half the summer production capacity, which is typical for locations in the Southern Hemisphere but still requires careful planning for year-round energy needs.Optimal Installation Configuration
For maximum year-round energy production at Los Berros, San Juan, solar panels should be installed at a fixed tilt angle of 28 degrees facing North. This angle has been calculated to optimize total annual solar output by accounting for the sun's changing position throughout the year and weighting the angles based on actual solar irradiance data and daily photovoltaic potential.Environmental and Weather Considerations
Several local factors could potentially impact solar energy production at this location and require preventative measures:- Dust accumulation: The semi-arid climate typical of this region can lead to significant dust buildup on solar panels, reducing efficiency by 10-25% if left uncleaned
- Hail damage: Argentina's interior regions can experience severe thunderstorms with large hail, particularly during summer months
- High winds: The open terrain can generate strong winds that may damage improperly secured installations
- Temperature extremes: Both high summer temperatures and occasional frost can affect panel efficiency and longevity
Preventative Installation Measures
To maximize energy production despite these challenges, several protective measures should be implemented. Installing panels with tempered glass and robust aluminum frames provides essential hail protection, while ensuring proper mounting systems can withstand wind loads exceeding local building codes. Regular cleaning schedules become crucial in this environment, with monthly panel washing recommended during dry periods and after dust storms. Automated cleaning systems or easy-access designs can reduce maintenance costs over time. Adequate ventilation spacing behind panels helps manage high temperatures, while selecting panels with lower temperature coefficients maintains better performance during hot summer days. Installing surge protectors and grounding systems also protects against electrical damage from thunderstorms. Overall, while Los Berros offers decent solar potential with proper planning and maintenance, the seasonal variation means backup power sources or battery storage systems may be necessary for consistent year-round energy independence.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 Los Berros
Seasonal solar PV output for Latitude: -31.946, Longitude: -68.6514 (Los Berros, 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 28° North in Los Berros, Argentina
To maximize your solar PV system's energy output in Los Berros, Argentina (Lat/Long -31.946, -68.6514) throughout the year, you should tilt your panels at an angle of 28° 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 Los Berros, 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 Los Berros, Argentina. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 28° North tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 16° North in Summer | 37° North in Autumn | 47° North in Winter | 25° 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 Los Berros, 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 Los Berros, 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 Los Berros, Argentina
Topographical Features of Los Berros Region
Los Berros sits within the San Juan Province of Argentina, positioned in the transition zone between the Andean foothills and the expansive plains that characterize much of central Argentina. The landscape around this location displays a gently undulating terrain with moderate elevation changes, typical of the Cuyo region's eastern margins. The area experiences a semi-arid climate with sparse vegetation, creating an environment dominated by scrubland and occasional agricultural patches where irrigation makes cultivation possible. The immediate vicinity of Los Berros features relatively flat to gently rolling terrain, with elevations that gradually increase toward the west as the land approaches the more dramatic Andean slopes. This topographical arrangement creates natural drainage patterns that flow generally eastward, forming occasional seasonal watercourses and small valleys. The soil composition consists primarily of alluvial deposits mixed with sandy and rocky materials, reflecting the region's geological history of erosion from the nearby mountain ranges.Solar Development Suitability Assessment
The topographical characteristics around Los Berros present several advantages for large-scale solar photovoltaic installations. The predominantly flat to gently sloping terrain minimizes the need for extensive site preparation and grading, which significantly reduces construction costs and environmental impact. Areas extending eastward from Los Berros toward the flatter plains offer particularly suitable conditions, as these locations combine accessible topography with minimal shading concerns from natural features. The sparse vegetation and low population density in the surrounding region provide ample opportunities for large solar arrays without significant land use conflicts. The natural drainage patterns, while important to consider for site planning, generally do not present insurmountable obstacles for solar development. Areas with gentle southern-facing slopes could offer optimal positioning for solar panels, though the relatively flat nature of much of the terrain means that panel orientation can be optimized through mounting systems rather than relying on natural topographical advantages.Recommended Development Areas
The most promising locations for large-scale solar development lie in the flatter areas to the northeast and southeast of Los Berros, where the terrain becomes increasingly level and expansive. These areas offer the dual benefits of stable, level ground and sufficient space for extensive solar installations. The slightly elevated plateaus and broad, flat valley floors in the region provide excellent foundation conditions while maintaining good drainage characteristics. Areas closer to existing infrastructure corridors would be particularly advantageous, as the relatively remote nature of the region means that transmission and access considerations play important roles in project viability. The natural topography creates several broad, open areas that could accommodate multiple large-scale installations while maintaining appropriate spacing and access routes between facilities.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: Saturday 5th 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.




