Ayacucho, Buenos Aires, Argentina presents a mixed picture for year-round solar energy generation, with significant seasonal variations that reflect its location in the Southern Temperate Zone at coordinates -37.1453, -58.4789.
Seasonal Solar Performance
The solar energy output at this location varies dramatically throughout the year. Summer delivers the strongest performance at 7.52 kWh per day per kW of installed solar capacity, making it an excellent time for solar generation. Spring also provides good output at 6.13 kWh per day per kW, offering another productive season for solar energy harvesting. However, the location faces significant challenges during cooler months. Autumn drops to 4.09 kWh per day per kW, while winter presents the most difficult period with only 2.78 kWh per day per kW of production. This represents a nearly three-fold difference between peak summer and winter performance.Optimal Panel Configuration
For maximum year-round energy production at Ayacucho, Buenos Aires, solar panels should be installed at a fixed tilt angle of 32 degrees facing North. This angle has been calculated to optimize total annual output by accounting for the sun's position throughout the year and weighting for solar irradiance potential.Environmental and Weather Challenges
Several local factors can significantly impact solar production at this location:- Pampas winds carrying dust and agricultural particles that accumulate on panels
- High humidity levels that can reduce panel efficiency and promote corrosion
- Frequent cloud cover during winter months that further reduces already limited production
- Potential hail storms during severe weather events
- Salt air effects if close to coastal areas
Preventative Measures for Better Performance
To maximize energy production despite these challenges, several installation strategies should be considered:- Install automated cleaning systems or schedule regular panel washing to remove dust and debris
- Use marine-grade mounting hardware and electrical components to resist corrosion from humidity
- Apply protective coatings to panels and equipment to extend lifespan
- Install hail guards or choose impact-resistant panel models
- Ensure proper drainage and ventilation around installations to prevent moisture buildup
- Consider battery storage systems to store excess summer production for use during low-production winter months
Note: The Southern Temperate Zone extends from -35° latitude South down to -66.5° 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 Ayacucho
Seasonal solar PV output for Latitude: -37.1453, Longitude: -58.4789 (Ayacucho, 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 32° North in Ayacucho, Argentina
To maximize your solar PV system's energy output in Ayacucho, Argentina (Lat/Long -37.1453, -58.4789) throughout the year, you should tilt your panels at an angle of 32° 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 Ayacucho, 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 Ayacucho, Argentina. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 32° North tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 21° North in Summer | 42° North in Autumn | 52° North in Winter | 29° 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 Ayacucho, 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 Ayacucho, 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 Ayacucho, Argentina
Topographical Features of the Ayacucho Region
The area around Ayacucho in Buenos Aires Province presents a predominantly flat to gently rolling landscape characteristic of the Argentine Pampas. This region sits within the vast plains that extend across much of central Argentina, where elevation changes are typically gradual and subtle. The terrain consists primarily of grasslands and agricultural fields, with occasional low hills and shallow depressions that create a softly undulating surface across the countryside. The local topography is shaped by ancient geological processes and more recent sedimentary deposits, resulting in fertile soils that support extensive farming operations. Small streams and seasonal watercourses meander through the landscape, creating minor valleys and drainage patterns that add gentle variation to an otherwise relatively uniform terrain. These waterways typically flow in shallow channels that do not create significant elevation changes or steep-sided valleys.Elevation Patterns and Landform Distribution
The elevation across this part of the Pampas remains fairly consistent, with most areas falling within a narrow range that creates excellent conditions for large-scale development projects. The absence of major hills, mountains, or deep valleys means that extensive flat areas are readily available for industrial or energy infrastructure development. This consistent topography extends for considerable distances in all directions from Ayacucho, providing numerous options for site selection. Natural drainage patterns in the region follow gentle gradients toward larger river systems, but these slopes are so gradual that they present minimal obstacles to development. The landscape lacks significant rock outcroppings, steep escarpments, or other geological features that might complicate construction or installation activities.Optimal Areas for Large-Scale Solar Development
The expansive flat plains extending northwest, west, and southwest of Ayacucho represent the most suitable locations for major solar photovoltaic installations. These areas combine optimal topographical conditions with minimal existing development, creating ideal circumstances for large-scale renewable energy projects. The consistently level terrain eliminates the need for extensive grading or earthwork that would be required in more mountainous regions. Areas to the north and northeast of the town also present excellent opportunities, particularly where agricultural land transitions to less intensively farmed grassland. The gentle slopes in these directions provide natural drainage while maintaining the flat characteristics essential for efficient solar panel installation and maintenance access. The southern approaches to Ayacucho offer additional suitable terrain, though developers would need to consider the proximity to existing agricultural operations and rural communities. The topographical advantages remain consistent in this direction, with the same favorable flat to gently rolling characteristics that define the broader region. Transportation access represents an additional advantage throughout the area, as the flat terrain has historically supported the development of rural road networks that could facilitate construction and ongoing maintenance operations for solar facilities. The absence of significant topographical barriers means that electrical transmission infrastructure can be efficiently routed to connect with existing power grid systems.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.




