Chos Malal, Neuquen, Argentina presents a moderately favorable location for year-round solar PV energy generation, though with significant seasonal variation typical of its Southern Temperate Zone position.
Seasonal Solar Performance
The solar energy output at this location shows dramatic seasonal differences. Summer delivers the strongest performance at 9.07 kWh per day per installed kW, making it an excellent time for solar generation. Spring also provides strong output at 7.48 kWh per day per kW, representing the second-best season for solar production. However, the location experiences a substantial drop during cooler months. Autumn production falls to 4.62 kWh per day per kW, while winter shows the lowest output at just 2.99 kWh per day per kW. This represents a three-fold difference between peak summer and minimum winter production.Optimal Installation Configuration
For maximum year-round energy production at Chos Malal, Neuquen, solar panels should be installed at a fixed tilt angle of 32 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 for the varying solar irradiance at this specific latitude.Environmental and Weather Challenges
Several local factors could potentially impact solar production at this Patagonian location:- Strong winds: The region experiences frequent high winds that can damage panels or reduce efficiency through vibration
- Dust and sand: Patagonian winds often carry fine particles that accumulate on panel surfaces
- Temperature extremes: Both hot summers and cold winters can affect panel efficiency
- Hail: Occasional severe weather events may pose physical risks to installations
Preventative Installation Measures
To maximize solar energy production despite these challenges, several protective measures should be implemented:- Robust mounting systems: Use reinforced mounting hardware designed for high wind loads, with proper anchoring to withstand Patagonian gusts
- Regular cleaning schedule: Establish frequent panel cleaning routines to remove dust and sand buildup, particularly during windy periods
- Quality panel selection: Choose panels with good temperature coefficients and proven durability in extreme weather conditions
- Protective barriers: Consider installing windbreaks or protective screens around the installation perimeter where feasible
- Hail-resistant panels: Select panels with tempered glass rated for impact resistance
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 Chos Malal
Seasonal solar PV output for Latitude: -37.3849, Longitude: -70.263 (Chos Malal, 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 Chos Malal, Argentina
To maximize your solar PV system's energy output in Chos Malal, Argentina (Lat/Long -37.3849, -70.263) 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 Chos Malal, 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 Chos Malal, 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 | 53° North in Winter | 30° 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 Chos Malal, 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 Chos Malal, 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 Chos Malal, Argentina
Topography Around Chos Malal
Chos Malal sits in the northern region of Neuquén Province in Argentina, positioned within the foothills of the Andes Mountains. The town itself occupies a relatively flat valley floor at approximately 850 meters above sea level, surrounded by rolling hills and moderate elevation changes that characterize this transition zone between the Patagonian steppe and the Andean cordillera.
The immediate landscape features a series of low ridges and gentle valleys carved by ancient river systems, with the Neuquén River flowing nearby. The terrain gradually rises toward the west as it approaches the main Andean range, while eastward the land opens into broader, flatter expanses typical of the northern Patagonian plateau. The area experiences a semi-arid climate with sparse vegetation consisting mainly of drought-resistant shrubs and grasses.
Rock formations in the region are predominantly sedimentary, with exposed sandstone and shale layers visible in many areas. The soil composition varies from sandy loam in valley bottoms to rockier, well-drained soils on elevated areas. Erosion patterns have created a landscape of moderate relief with occasional deeper arroyos and seasonal watercourses that remain dry for much of the year.
Optimal Areas for Large-Scale Solar Development
The most suitable locations for large-scale solar photovoltaic installations lie on the elevated plateaus and gentle slopes east and southeast of Chos Malal. These areas offer several advantages including relatively flat terrain that minimizes grading requirements, excellent drainage to prevent water accumulation around equipment, and stable soil conditions suitable for foundation work.
The broad mesa-like formations approximately 10-15 kilometers east of the town center present particularly favorable conditions. These elevated areas typically range from 900 to 1,100 meters in elevation and feature consistent gradients of less than 5 degrees across extensive areas. The higher elevation provides additional benefits through cooler operating temperatures for photovoltaic panels and reduced atmospheric interference.
Areas along the northern and southern approaches to Chos Malal also show promise, particularly where the terrain opens into wider valleys with minimal topographic obstruction. These locations benefit from existing road access and proximity to electrical infrastructure while maintaining the flat to gently rolling topography essential for efficient solar array installation and maintenance.
The western areas closer to the Andean foothills should generally be avoided for large installations due to increased terrain complexity, potential shading from higher elevations, and the logistical challenges associated with steeper slopes and less stable soil conditions. Similarly, low-lying areas near seasonal watercourses present risks from occasional flooding and may have access limitations during wet periods.
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
Tell Us About Your Work
We love seeing how our research helps others! If you've cited this article in your work, we'd be delighted to hear about it. Drop us a line via our Contact Us page or on X, to share where you've used our information - we may feature a link to your work on our site. This helps create a network of valuable resources for others in the solar energy community and helps us understand how our research is contributing to the field. Plus, we occasionally highlight exceptional works that reference our research on our social media channels.
Feeling generous?
Share this with your friends!

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.




