Marcos Paz, Buenos Aires, Argentina presents a moderately good location for year-round solar energy generation, though with significant seasonal variations typical of its Southern Sub Tropics climate zone.
Seasonal Solar Performance
The solar energy output at this location shows a clear seasonal pattern that reflects the Southern Hemisphere's weather cycles. Summer delivers the strongest performance at 7.79 kWh per day per kW of installed solar capacity, making it the peak season for energy generation. Spring follows as the second-best performing season at 6.25 kWh per day per kW, offering excellent solar conditions. Autumn sees a notable decline to 4.51 kWh per day per kW, while winter represents the challenging period with the lowest output at just 3.19 kWh per day per kW of installed capacity. This winter reduction to less than half of summer's output is significant for energy planning purposes.Optimal Installation Configuration
For maximum year-round energy production at Marcos Paz, Buenos Aires, solar panels should be installed at a fixed tilt angle of 30 degrees facing north. This angle has been calculated to optimize total annual solar output by accounting for the sun's varying elevation angles throughout the year and weighting these against actual solar irradiance data.Local Environmental and Weather Challenges
Several environmental factors in the Marcos Paz region can impact solar energy production:- Pampas dust and agricultural particles: The location sits in Argentina's agricultural heartland, where farming activities and natural wind patterns can deposit dust and organic particles on solar panels, reducing their efficiency
- Seasonal weather patterns: The region experiences periods of high humidity and occasional severe weather including hailstorms, which can damage panels or reduce performance
- Morning fog and mist: Common in this subtropical climate, particularly during autumn and winter months, which can further reduce the already lower seasonal output
Preventative Measures for Optimal Performance
To maximize solar energy production at this location, several installation strategies should be considered:- Regular cleaning schedule: Implement monthly panel cleaning to remove agricultural dust and debris, with more frequent cleaning during harvest seasons
- Hail-resistant panels: Install solar panels rated for impact resistance to withstand severe weather events common to the region
- Proper mounting systems: Use robust mounting hardware designed for the local wind conditions and ensure adequate panel spacing for air circulation to reduce moisture buildup
- Monitoring systems: Install performance monitoring to quickly identify when panels need cleaning or maintenance, particularly important given the seasonal output variations
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 Marcos Paz
Seasonal solar PV output for Latitude: -34.7837, Longitude: -58.8463 (Marcos Paz, 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 30° North in Marcos Paz, Argentina
To maximize your solar PV system's energy output in Marcos Paz, Argentina (Lat/Long -34.7837, -58.8463) throughout the year, you should tilt your panels at an angle of 30° 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 Marcos Paz, 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 Marcos Paz, Argentina. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 30° North tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 19° North in Summer | 40° North in Autumn | 49° North in Winter | 27° 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 Marcos Paz, 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 Marcos Paz, 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 Marcos Paz, Argentina
Topographical Features of Marcos Paz
The area around Marcos Paz in Buenos Aires Province is characterized by relatively flat terrain typical of the Argentine Pampas. This region sits within the broader La Plata River basin, featuring gently rolling plains with minimal elevation changes across the landscape. The topography consists primarily of fertile lowlands with subtle undulations that rarely exceed 50 meters in elevation variation over considerable distances. The local terrain is dominated by agricultural lands interspersed with small urban developments and rural settlements. Natural water features include several small streams and seasonal wetlands that drain toward the Río de la Plata system. These waterways have created very gentle valleys and slight depressions in an otherwise remarkably uniform landscape. Soil composition throughout the region consists mainly of deep, rich loess deposits that have accumulated over millennia. This has resulted in exceptionally flat agricultural zones with only minor topographical obstacles such as occasional low ridges or shallow depressions left by ancient river channels.Optimal Areas for Large-Scale Solar Development
The expansive flat agricultural plains extending southwest and west of Marcos Paz present ideal conditions for major solar installations. These areas offer vast tracts of relatively level ground with minimal grading requirements, significantly reducing construction and installation costs. The uniform topography allows for optimal panel positioning and spacing without the complications introduced by steep slopes or irregular terrain. Areas to the northwest toward General Rodríguez and southwest toward Cañuelas provide particularly suitable locations due to their combination of flat terrain and proximity to existing electrical infrastructure. The agricultural zones in these directions feature large continuous parcels of land that could accommodate utility-scale solar farms without significant topographical constraints. The southeastern regions, while also relatively flat, contain more residential development and smaller property divisions that may complicate large-scale solar deployment. However, the areas further south toward Lobos maintain the characteristic Pampas flatness while offering substantial undeveloped agricultural land suitable for conversion to solar energy production. Transportation access throughout these optimal zones remains excellent due to the flat terrain, which has historically facilitated the development of road networks connecting rural agricultural areas to major population centers. This accessibility factor, combined with the minimal topographical challenges, makes the western and southwestern areas particularly attractive for large-scale solar development projects.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 25th of July 2025
Last Updated: Thursday 7th 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.
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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.




