Santa Rosa del Aguaray, Paraguay offers a moderately good location for year-round solar energy generation, though with notable seasonal variations typical of its Southern Sub Tropics climate zone.

Seasonal Solar Performance

The solar energy output at this location shows significant seasonal fluctuation. Summer delivers the strongest performance at 7.19 kWh per day per kW of installed solar capacity, making it the prime season for solar generation. Spring follows as the second-best period with 6.24 kWh per day per kW, while autumn drops to 5.28 kWh per day per kW. Winter presents the most challenging conditions with only 3.88 kWh per day per kW of solar capacity. This seasonal pattern means that summer and spring are the ideal times for maximum solar energy production, generating nearly twice as much electricity as the winter months. The total annual variation shows a substantial 85% difference between peak summer and minimum winter output. For optimal year-round performance, fixed solar panels at Santa Rosa del Aguaray should be tilted at 21 degrees facing North. This angle maximizes total annual electricity production by accounting for the sun's changing position throughout the year and the varying solar irradiance levels across different seasons.

Environmental and Weather Factors

Several local factors could potentially impact solar energy production at this location:

• Seasonal rainfall patterns: The Southern Sub Tropics region typically experiences wet and dry seasons, with heavy rains potentially reducing solar output during certain months
• Humidity and cloud cover: High humidity levels can create persistent cloud formations that block direct sunlight
• Dust and debris accumulation: Dry periods may lead to dust buildup on solar panels, reducing their efficiency
• Extreme weather events: The region may experience severe storms or hail that could damage solar installations

Preventative Measures

To maximize solar energy production despite these challenges, several installation strategies can be employed. Regular cleaning schedules should be established to remove dust and debris, particularly during dry seasons. Installing panels with adequate drainage and tilt helps prevent water pooling and allows rain to naturally clean the surface. Choosing high-quality mounting systems designed to withstand local wind loads and potential hail damage is essential. Additionally, installing monitoring systems can help identify performance issues quickly, allowing for prompt maintenance when weather-related problems occur. Proper spacing between panel rows prevents shading issues and allows for adequate airflow, which helps keep panels cool and maintains efficiency even during hot, humid conditions typical of the subtropical climate.

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 55 locations across Paraguay. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.

Link: Solar PV potential in Paraguay by location

Solar output per kW of installed solar PV by season in Santa Rosa Del Aguaray

Seasonal solar PV output for Latitude: -23.8341, Longitude: -56.5238 (Santa Rosa Del Aguaray, Paraguay), 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 21° North in Santa Rosa Del Aguaray, Paraguay

To maximize your solar PV system's energy output in Santa Rosa Del Aguaray, Paraguay (Lat/Long -23.8341, -56.5238) throughout the year, you should tilt your panels at an angle of 21° 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 Santa Rosa Del Aguaray, Paraguay

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 Santa Rosa Del Aguaray, Paraguay. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 21° North tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
8° North in Summer	29° North in Autumn	39° North in Winter	17° 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 Santa Rosa Del Aguaray, Paraguay

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 Santa Rosa Del Aguaray, Paraguay.

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 Santa Rosa Del Aguaray, Paraguay

Topography Around Santa Rosa del Aguaray

Santa Rosa del Aguaray sits in the eastern region of Paraguay, positioned within the gently rolling landscape characteristic of the Paraná Plateau. The terrain around this area consists predominantly of low hills and broad valleys, with elevations typically ranging between 200 and 400 meters above sea level. The topography is relatively gentle, featuring gradual slopes rather than steep inclines or dramatic elevation changes.

The region forms part of the broader Atlantic Forest ecoregion, where the landscape has been shaped by ancient geological processes and weathering patterns. Rolling grasslands intermingle with patches of subtropical forest, creating a mosaic of open areas and wooded sections. The soil composition includes red lateritic soils typical of this part of South America, formed through the weathering of underlying basaltic bedrock.

Several small streams and tributaries flow through the area, creating shallow valleys that cut gently through the landscape. These waterways generally flow in a westward direction toward the Paraguay River system. The drainage patterns have created a series of low ridges and shallow depressions across the terrain, though none present significant obstacles to development.

Optimal Areas for Large-Scale Solar Development

The most suitable locations for large-scale solar photovoltaic installations around Santa Rosa del Aguaray would be the elevated plateaus and gentle south-facing slopes found throughout the region. These areas offer several advantages including good drainage, stable ground conditions, and minimal shading from surrounding terrain features.

The broad, open grassland areas that extend across the higher elevations present ideal conditions for solar development. These locations typically feature consistent grade slopes of less than 5 degrees, which allows for efficient panel installation and maintenance access while minimizing earthwork requirements. The stable lateritic soils in these areas provide solid foundations for mounting systems without requiring extensive ground preparation.

Areas along the ridge lines and elevated plateaus would be particularly well-suited because they experience minimal shadowing from adjacent terrain and benefit from good air circulation, which helps maintain optimal panel operating temperatures. The gentle topography also facilitates the construction of access roads and electrical infrastructure needed to support large installations.

The open agricultural lands and pasturelands scattered throughout the region represent prime candidates for solar development, as they typically feature cleared, relatively flat terrain with established access routes. These areas often have gentle southern exposures that would be ideal for maximizing solar collection throughout the day.

Locations to avoid would include the narrow valley bottoms near streams and waterways, where seasonal flooding might occur, and the few steeper slopes found on some hillsides where erosion control could become problematic. The heavily forested areas would also be less suitable due to clearing requirements and potential environmental concerns.

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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.