Solar Energy Potential in Zapala, Neuquen, Argentina
Zapala, Neuquen, Argentina, located in the Southern Temperate Zone, presents varying conditions for solar PV energy generation throughout the year. The seasonal electricity output shows significant fluctuations across the four meteorological seasons, making it important to understand the location's potential for solar energy production. The summer months deliver the highest solar energy production with an impressive 8.93kWh per day for each kilowatt of installed solar capacity. Spring follows as the second most productive season, generating 7.31kWh daily per kW of capacity. These two seasons represent the prime periods for solar energy generation in Zapala. A noticeable decline occurs during autumn, with production dropping to 4.46kWh per day per kW installed. Winter shows the lowest output at just 2.82kWh per day per kW, which is less than one-third of the summer production levels. This substantial seasonal variation indicates that supplementary energy sources might be necessary during the winter months to maintain consistent power supply.Optimal Panel Installation
For fixed solar panel installations in Zapala, Neuquen, the ideal tilt angle to maximize year-round energy production is 33 degrees facing North. This specific angle has been calculated to optimize solar capture across the seasons, taking into account the location's latitude and the sun's changing position throughout the year.Environmental Considerations
The Patagonian region where Zapala is located experiences strong winds, particularly during the transitional seasons. These winds can carry dust and debris that may accumulate on solar panels, reducing their efficiency. Installing panels with adequate wind resistance ratings and implementing regular cleaning schedules can mitigate this issue. Winter snowfall in this region, while not extremely heavy, can occasionally cover panels and temporarily reduce output. Installing panels at the recommended 33-degree tilt helps with natural snow shedding, and snow removal systems might be beneficial for larger installations. The area also experiences seasonal temperature fluctuations that can affect panel efficiency. Modern solar panels with lower temperature coefficients would perform better in this environment, maintaining higher efficiency during the hot summer days when production potential is at its peak.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 Zapala
Seasonal solar PV output for Latitude: -38.903, Longitude: -70.0643 (Zapala, 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 33° North in Zapala, Argentina
To maximize your solar PV system's energy output in Zapala, Argentina (Lat/Long -38.903, -70.0643) throughout the year, you should tilt your panels at an angle of 33° 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 Zapala, 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 Zapala, Argentina. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 33° North tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 23° North in Summer | 43° North in Autumn | 54° North in Winter | 31° 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 Zapala, 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 Zapala, 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 Zapala, Argentina
The topography around Zapala, Argentina presents a fascinating transition zone between different geographical regions. Located in the Neuquén Province in northwestern Patagonia, Zapala sits at an elevation of approximately 1,000 meters above sea level. The landscape features a semi-arid plateau characteristic of the Patagonian steppe, with the impressive Andes Mountains rising to the west. The terrain surrounding Zapala is characterized by vast open plains with gentle undulations, scattered with hardy shrubs and grasses adapted to the arid conditions. Moving westward, the landscape gradually becomes more rugged as it approaches the foothills of the Andes, with increasing elevation and more pronounced topographical features including rocky outcrops and deeper valleys.
Geological Features
The geological makeup around Zapala reflects its position on the eastern edge of the Andean mountain system. The area showcases sedimentary rock formations, including limestone and sandstone deposits that speak to the region's ancient marine past. Volcanic activity has also left its mark on the landscape, with basaltic plateaus and volcanic cones visible in parts of the surrounding territory. Water resources in the area are limited, with seasonal streams and a few permanent water bodies. The Covunco River flows near Zapala, providing an important water source in this otherwise dry region. The climate is continental semi-arid, with significant temperature variations between seasons.Optimal Areas for Solar PV Development
For large-scale solar photovoltaic development, the expansive plateaus to the east and southeast of Zapala offer particularly favorable conditions. These areas combine several advantageous characteristics: The flat to gently rolling terrain east of Zapala provides excellent sites for solar installations, minimizing the need for extensive land preparation. These open plains receive abundant solar radiation due to the region's clear skies and limited cloud cover throughout much of the year. The semi-arid climate means minimal precipitation that could otherwise reduce solar efficiency. Areas approximately 20-30 kilometers east of Zapala, where the steppe plateau extends with minimal topographical obstacles, would be particularly suited for large installations. These locations offer the additional advantage of relatively close proximity to existing infrastructure, including roads and transmission lines connected to Zapala. The northeastern sectors also present viable options, featuring similar flat terrain with good exposure to sunlight. These areas have minimal competing land uses, as the arid conditions limit agricultural potential.Considerations for Development
While developing solar infrastructure in this region, several topographical factors warrant consideration. The strong Patagonian winds that sweep across these open plains necessitate robust mounting systems for solar panels. The significant temperature variations between day and night, as well as seasonal extremes, require equipment designed to withstand thermal stress. Access to water for panel cleaning may present challenges given the arid nature of the region, though modern dry-cleaning technologies can help mitigate this concern. The sparse vegetation and minimal agricultural activity in the eastern plains reduce potential land-use conflicts, making these areas particularly attractive for sustainable energy development. The natural drainage patterns of the plateau should be respected in site planning to prevent erosion issues during the occasional heavy rainfall events. Overall, the topographical and climatic conditions of the eastern Zapala region present highly favorable characteristics for solar energy development, with few natural impediments to large-scale installations.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!
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Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Sunday 29th of June 2025
Last Updated: Tuesday 5th 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
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