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Flag of ArgentinaSolar PV Analysis of Formosa, Argentina

Graph of hourly avg kWh electricity output per kW of Solar PV installed in Formosa, Argentina (by season)

Formosa, Argentina, located in the Southern Sub Tropics at coordinates -26.189, -58.1826, shows varying potential for solar PV energy generation throughout the year. This location experiences significant seasonal fluctuations in solar energy production that potential solar investors should consider.

Seasonal Solar Production

Solar panels in Formosa generate their highest electricity output during the summer months, producing an average of 7.71kWh per day for each kilowatt of installed capacity. Spring follows as the second most productive season with 6.03kWh/day, while autumn yields 5.10kWh/day. Winter represents the least productive period, with output dropping to 3.81kWh/day per kW installed.

This seasonal pattern creates a considerable difference between peak summer production and winter lows, with summer generating approximately twice the energy of winter months. This variation is important to consider when planning a solar installation that needs to meet year-round energy demands.

Optimal Installation Angle

For fixed solar panel installations in Formosa, the ideal tilt angle to maximize year-round energy production is 23 degrees facing North. This specific angle optimizes the annual solar harvest by accounting for the location's position in the Southern Hemisphere and seasonal sun path variations.

Environmental Considerations

Several environmental factors could potentially impact solar production in Formosa:

  • High humidity and frequent rainfall in the subtropical climate may reduce panel efficiency and increase the need for maintenance.
  • Dust accumulation from the region's agricultural activities can create a film on panels that diminishes their performance.
  • Seasonal storms, particularly during summer months, may temporarily reduce production despite this being the highest yield period.

Preventative Measures

To maximize solar production in Formosa's specific conditions, several preventative measures are recommended:

  • Install self-cleaning panels or implement a regular cleaning schedule to combat dust accumulation.
  • Use corrosion-resistant mounting hardware suitable for the humid climate.
  • Consider a slightly steeper panel angle than the optimal 23 degrees if dust accumulation is a significant concern, as this promotes better natural cleaning during rainfall.
  • Implement robust lightning protection systems to safeguard the installation during summer thunderstorms.

With proper planning and preventative measures, a solar PV system in Formosa can provide reliable energy production, particularly taking advantage of the excellent summer and spring conditions while preparing for reduced winter output.

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 Formosa

Seasonal solar PV output for Latitude: -26.189, Longitude: -58.1826 (Formosa, 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:

Summer
Average 7.71kWh/day in Summer.
Autumn
Average 5.10kWh/day in Autumn.
Winter
Average 3.81kWh/day in Winter.
Spring
Average 6.03kWh/day in Spring.

 

Ideally tilt fixed solar panels 23° North in Formosa, Argentina

To maximize your solar PV system's energy output in Formosa, Argentina (Lat/Long -26.189, -58.1826) throughout the year, you should tilt your panels at an angle of 23° 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.

The sun
At Latitude: -26.189, Longitude: -58.1826, the ideal angle to tilt panels is 23° North

Seasonally adjusted solar panel tilt angles for Formosa, 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 Formosa, Argentina. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 23° North tilt angle throughout the year.

Overall Best Summer Angle Overall Best Autumn Angle Overall Best Winter Angle Overall Best Spring Angle
10° North in Summer 32° North in Autumn 41° North in Winter 19° North in Spring

Assuming you can modify the tilt angle of your solar PV panels throughout the year, you can optimize your solar generation in Formosa, Argentina as follows: In Summer, set the angle of your panels to 10° facing North. In Autumn, tilt panels to 32° facing North for maximum generation. During Winter, adjust your solar panels to a 41° angle towards the North for optimal energy production. Lastly, in Spring, position your panels at a 19° angle facing North to capture the most solar energy in Formosa, Argentina.

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 Formosa, 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 Formosa, Argentina.

Our calculation method

  1. Solar Position:
    We determine the Sun's position on the Winter solstice using the location's latitude and solar declination.
  2. Shadow Projection:
    We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle.
  3. 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.






Please enter information above to calculate panel spacing.

Topography for solar PV around Formosa, Argentina

The topography around Formosa, Argentina, is characterized primarily by its flat, low-lying terrain. Located in the northeastern part of Argentina, Formosa sits within the vast Gran Chaco plain, a region that extends across parts of Argentina, Paraguay, and Bolivia. The elevation in this area averages between 50-100 meters above sea level, with minimal variation across the landscape. The Gran Chaco plain around Formosa features extensive wetlands, particularly along the Paraguay River which forms part of the border between Argentina and Paraguay. These wetlands include marshes, lagoons, and seasonal flooding areas that create a dynamic hydrological system. The soil composition varies from sandy loams to clay, with areas of rich alluvial deposits near the river systems.

Vegetation and Land Cover

The natural vegetation around Formosa consists of a mix of subtropical forests, savanna grasslands, and palm groves. However, much of the original vegetation has been modified by human activities, primarily agriculture and cattle ranching. The remaining natural areas showcase a transition between the wetter eastern forests and the drier western woodlands characteristic of the Chaco region. Seasonal changes significantly affect the landscape, with distinct wet and dry periods. During the rainy season, low-lying areas may experience flooding, while the dry season brings a marked contrast with parched soils and reduced water levels in wetlands.

Potential Areas for Solar PV Development

For large-scale solar photovoltaic installations, the most suitable areas near Formosa would be the elevated plains that remain dry throughout the year. These areas are primarily located to the west and northwest of the city, where the terrain becomes slightly higher and drier compared to the eastern wetlands. The western Chaco region offers extensive flat land with minimal shading obstacles and good drainage characteristics. These areas typically have sparse vegetation consisting of drought-resistant shrubs and grasses, making land clearing less environmentally impactful compared to areas with denser forest cover. Areas approximately 20-40 kilometers west of Formosa city present particularly favorable conditions, where the land rises slightly above the flood-prone zones near the Paraguay River. These locations combine the advantages of flat terrain with reduced flood risk and good solar exposure. The northwestern corridor extending toward Las Lomitas (about 300 km from Formosa) features increasingly arid conditions with extensive open plains that would be well-suited for solar installations. This transition zone between the humid eastern Chaco and the drier western Chaco provides substantial land availability with minimal competing land uses beyond extensive cattle ranching. It's worth noting that while the immediate surroundings of Formosa city include agricultural lands that could potentially be repurposed for solar development, the western regions offer larger contiguous areas with fewer competing land uses and reduced flooding concerns, making them generally more suitable for large-scale solar PV deployment.

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

Article: Solar PV Analysis of Formosa, Argentina
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Saturday 28th of June 2025
Last Updated: Monday 21st of July 2025

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Compare this location to others worldwide for solar PV potential

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