Villa Hayes, Presidente Hayes, Paraguay, a location in the Southern Sub Tropics, offers reasonably good conditions for solar PV energy generation throughout the year, though with notable seasonal variations. The site experiences its peak solar production during summer months, with an impressive daily output of 7.59kWh per kW of installed capacity.

Seasonal Solar Production

Solar energy generation at this location follows a predictable seasonal pattern. Summer (December-February) delivers the highest yield at 7.59kWh per day per kW installed, making it an excellent period for solar generation. Spring (September-November) follows as the second most productive season with 5.97kWh daily output. Autumn (March-May) provides moderate generation at 5.16kWh per day, while winter (June-August) shows the lowest production at 3.81kWh daily per kW installed.

This seasonal variation means that while solar remains viable year-round, winter months will produce approximately half the electricity of summer months. The site's annual average production indicates it remains a worthwhile location for solar investment, particularly given the strong performance in summer and spring.

Optimal Panel Installation

For fixed solar panel installations at Villa Hayes, Presidente Hayes, the ideal tilt angle to maximize year-round energy production is 22 degrees facing North. This specific angle has been calculated to optimize solar capture throughout the year, accounting for the site's latitude and seasonal sun paths.

Environmental and Weather Considerations

Several environmental factors could potentially impact solar production at this location:

• Heavy rainfall during Paraguay's wet season (October-April) could temporarily reduce solar output and may necessitate more frequent panel cleaning.
• Occasional dust storms in the dry season can deposit particulate matter on panels, reducing efficiency.
• High summer temperatures may slightly reduce panel efficiency, as photovoltaic performance typically decreases above 25°C.
• Potential flooding from the nearby Paraguay River could pose risks to ground-mounted systems.

Preventative Measures

To mitigate these challenges, several preventative measures can be implemented. Installing panels with self-cleaning capabilities or scheduling regular cleaning, especially after dusty periods, will maintain optimal efficiency. Elevating ground-mounted systems above potential flood levels provides protection from water damage. Using panels with good temperature coefficients and ensuring adequate airflow beneath panels can help minimize efficiency losses during hot periods.

Additionally, incorporating a slight adjustment from the theoretically optimal tilt angle might be beneficial if dust accumulation is a significant concern, as steeper angles facilitate better natural cleaning during rainfall events.

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 Villa Hayes

Seasonal solar PV output for Latitude: -25.0922, Longitude: -57.5256 (Villa Hayes, 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 22° North in Villa Hayes, Paraguay

To maximize your solar PV system's energy output in Villa Hayes, Paraguay (Lat/Long -25.0922, -57.5256) throughout the year, you should tilt your panels at an angle of 22° 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 Villa Hayes, 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 Villa Hayes, Paraguay. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 22° North tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
9° North in Summer	30° North in Autumn	40° North in Winter	18° 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 Villa Hayes, 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 Villa Hayes, 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 Villa Hayes, Paraguay

The landscape around Villa Hayes, Paraguay, presents a diverse topography characterized by gentle rolling plains transitioning to more varied terrain. Villa Hayes sits on the eastern bank of the Paraguay River, approximately 30 kilometers north of Asunción, the nation's capital. The area forms part of the western edge of the Eastern Region (Región Oriental) of Paraguay, which contrasts with the flatter Gran Chaco to the west across the river. The immediate vicinity of Villa Hayes features relatively flat to gently undulating terrain with elevations generally ranging between 60 to 100 meters above sea level. The Paraguay River forms a significant topographical feature along the western boundary of the area, creating a natural border and floodplain. This riverine environment includes some low-lying areas subject to seasonal flooding, particularly during periods of heavy rainfall.

Surrounding Landscape Features

Moving eastward from Villa Hayes, the terrain gradually becomes more varied with subtle hills and shallow valleys. The soil composition in this region typically consists of clay and sandy loam, providing relatively stable ground conditions. Vegetation in the area includes patches of Atlantic Forest remnants, grasslands, and agricultural modifications where the natural landscape has been altered for farming and ranching. To the north and northeast of Villa Hayes, the terrain gradually rises, forming part of the Cordillera de los Altos, a modest hill range that extends across portions of central Paraguay. These hills, while not particularly high, provide some topographical relief to the otherwise predominantly flat landscape of the region.

Optimal Areas for Solar PV Development

For large-scale solar photovoltaic installations, several areas near Villa Hayes offer favorable conditions based on topographical considerations. The most suitable locations would be found in the elevated plains to the east and northeast of Villa Hayes, where the gently rolling terrain provides good drainage and minimal shadowing effects. Specifically, the areas approximately 10-15 kilometers east of Villa Hayes feature open expanses with minimal tree cover and favorable slope aspects. These locations offer relatively flat terrain with slight south-facing inclines (optimal in the Southern Hemisphere) that can maximize solar energy capture while minimizing the engineering challenges associated with construction on varied topography. The elevated areas north of Villa Hayes, approaching but not directly in the Cordillera de los Altos, also present good opportunities for solar development. These locations benefit from stable ground conditions and reduced risk of flooding compared to areas closer to the Paraguay River. Areas to avoid would include the immediate floodplains of the Paraguay River to the west, where seasonal inundation poses risks to infrastructure, and the more densely forested sections to the southeast, where clearing would be environmentally problematic and topographically challenging. The clay-based soils prevalent in the region generally provide adequate stability for mounting systems, though some areas may require additional engineering considerations during seasonal changes when soil expansion and contraction occur due to varying moisture content.

Citation Guide

Article Details for Citation

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.