San Salvador, Entre Rios, Argentina, located in the Southern Sub Tropics at coordinates -31.6186, -58.4959, presents a moderately favorable location for year-round solar energy generation, though with significant seasonal variations that potential solar installers should carefully consider.

Seasonal Solar Performance

The solar energy output at this location varies considerably throughout the year. Summer provides the strongest performance at 7.89 kWh per day per kW of installed solar capacity, making it the prime season for solar generation. Spring follows as the second-best season with 6.64 kWh per day per kW, offering solid energy production during this transitional period. Autumn sees a notable decline to 4.50 kWh per day per kW, while winter presents the most challenging conditions with only 3.53 kWh per day per kW. This represents a significant drop of more than 50% compared to peak summer production, which is typical for locations at this latitude but requires careful planning for year-round energy needs.

Optimal Installation Setup

For fixed panel installations at San Salvador, Entre Rios, the ideal tilt angle to maximize total year-round solar production is 27 degrees facing North. This angle has been calculated to optimize energy capture across all seasons by accounting for the sun's varying elevation throughout the year and weighting these angles according to actual solar irradiance data.

Local Environmental Factors

Several environmental and weather factors in the San Salvador region could potentially impact solar energy production:

• High humidity and frequent rainfall, particularly during summer months, can reduce solar panel efficiency and create more frequent cloud cover
• Dust and agricultural particles from surrounding farming activities may accumulate on panels, reducing light transmission
• Occasional severe weather events including hailstorms and strong winds common to the region
• Morning fog and mist, especially during cooler months, can delay peak production hours

Preventative Measures for Optimal Performance

To maximize solar energy production despite these challenges, several preventative measures should be implemented:

• Install panels with adequate spacing and ventilation to prevent moisture buildup and improve cooling efficiency
• Implement regular cleaning schedules, particularly during dusty agricultural seasons
• Use high-quality mounting systems designed to withstand regional wind loads and potential hail damage
• Consider anti-reflective coatings and hydrophobic treatments to help panels self-clean during rainfall
• Install monitoring systems to quickly identify and address any performance issues

Overall Assessment

While San Salvador experiences the typical seasonal variations expected at this southern latitude, the location offers reasonable solar potential, particularly during the warmer months. The substantial difference between summer and winter production means that installations should be sized appropriately to meet energy needs during the lower-production winter period, or supplemented with battery storage or grid connectivity to balance seasonal 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 San Salvador

Seasonal solar PV output for Latitude: -31.6186, Longitude: -58.4959 (San Salvador, 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 27° North in San Salvador, Argentina

To maximize your solar PV system's energy output in San Salvador, Argentina (Lat/Long -31.6186, -58.4959) throughout the year, you should tilt your panels at an angle of 27° 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 San Salvador, 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 San Salvador, Argentina. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 27° North tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
15° North in Summer	37° North in Autumn	46° North in Winter	24° 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 San Salvador, 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 San Salvador, 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.

Topography for solar PV around San Salvador, Argentina

Topographical Features of San Salvador, Argentina

San Salvador is located in the northeastern region of Argentina, situated within the province of Entre Ríos along the western bank of the Uruguay River. The topography surrounding this area is characterized by gently rolling plains and low hills that form part of the broader Mesopotamian region between the Paraná and Uruguay rivers. The landscape consists primarily of sedimentary formations with elevations that rarely exceed 100 meters above sea level, creating a relatively flat to undulating terrain that extends across much of the Entre Ríos province.

The immediate vicinity of San Salvador features fertile alluvial soils deposited over thousands of years by the meandering Uruguay River system. These river terraces create subtle elevation changes throughout the region, with the highest points typically found on ancient river bluffs and interfluves between waterways. The terrain slopes gradually eastward toward the Uruguay River, while westward areas rise slightly toward the watershed divide that separates the Uruguay and Paraná river basins.

Numerous small streams and seasonal watercourses dissect the landscape, creating shallow valleys and gentle ridges that add modest relief to an otherwise subdued topography. The region experiences minimal geological constraints, with stable bedrock underlying the surface sediments and very low seismic activity. Vegetation consists mainly of modified grasslands and agricultural areas, with scattered gallery forests along waterways and occasional stands of native woodland on higher ground.

Optimal Areas for Large-Scale Solar Development

The gently rolling topography surrounding San Salvador presents several advantages for large-scale solar photovoltaic installations. The most suitable areas would be the broad, relatively flat interfluves between the major drainage systems, particularly those elevated plateaus located 3 to 8 kilometers west and southwest of the town center. These areas offer stable ground conditions with minimal slope variations, reducing the need for extensive site preparation and grading work.

The elevated terraces along the western approaches to San Salvador provide excellent opportunities for solar development due to their consistent elevation and freedom from flood risk. These locations benefit from unobstructed sky exposure across all cardinal directions, with minimal shading from topographical features. The stable geological conditions in these areas would support large-scale infrastructure with minimal foundation requirements, while the gentle slopes facilitate proper drainage without compromising panel positioning.

Areas immediately north and south of San Salvador also present favorable conditions, where the landscape opens into broader agricultural plains with fewer drainage interruptions. These zones offer the additional advantage of proximity to existing electrical infrastructure while maintaining sufficient distance from residential areas. The consistent elevation and minimal relief variations across these plains would allow for standardized installation techniques across extensive solar arrays.

Locations closer to the Uruguay River should generally be avoided due to increased flood risk and the presence of more dissected terrain with steeper slopes leading down to the river valley. Similarly, areas with dense concentrations of small streams and seasonal wetlands would present challenges for large-scale development, though these features are relatively uncommon in the broader landscape surrounding San Salvador.

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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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.