Flag of United States

Flag of ArgentinaSolar PV Analysis of Rafael Castillo, Argentina

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

Solar Energy Potential in Rafael Castillo, Argentina

Rafael Castillo, Argentina, located in the Southern Sub Tropics at latitude -34.7189 and longitude -58.6154, offers varying potential for solar energy generation throughout the year. This location experiences significant seasonal fluctuations in solar productivity that potential solar adopters should consider. The solar energy generation potential shows a clear seasonal pattern. Summer months are exceptionally productive, yielding approximately 7.79kWh per day for each kilowatt of installed solar capacity. Spring follows as the second most productive season with 6.25kWh/day per kW. Production decreases considerably during autumn to 4.51kWh/day per kW, while winter represents the annual low point with just 3.19kWh/day per kW of installed capacity.

Optimal Panel Installation

For fixed solar panel installations in Rafael Castillo, the ideal tilt angle to maximize year-round energy production is 30 degrees facing North. This angle is calculated based on the location's latitude and seasonal solar patterns to capture the maximum possible sunlight throughout the year.

Environmental and Weather Considerations

Several environmental factors in Rafael Castillo may affect solar energy production:
  • Dust and pollution: Being near Buenos Aires metropolitan area, Rafael Castillo can experience urban pollution that may accumulate on panels and reduce efficiency.
  • Seasonal rainfall: The region experiences periodic heavy rainfall that can temporarily reduce solar output, though it also naturally cleans panels.
  • Occasional hail storms: The Pampas region can experience hailstorms that pose a physical risk to solar installations.

Preventative Measures

To maximize solar energy production in Rafael Castillo, consider these preventative measures:
  • Install hail-resistant panels with tempered glass that meet local weather condition standards
  • Implement a regular cleaning schedule, particularly before and after the dry season
  • Consider micro-inverter or power optimizer technology to minimize the impact of partial shading
  • Ensure proper drainage around ground-mounted systems to prevent water accumulation during heavy rains
  • Install panels with anti-soiling coatings to reduce dust buildup in this semi-urban environment
With these considerations in mind, Rafael Castillo offers good potential for solar energy generation, particularly during summer and spring months, with appropriate system design accommodating for the significant seasonal variations in production.

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 Rafael Castillo

Seasonal solar PV output for Latitude: -34.7189, Longitude: -58.6154 (Rafael Castillo, 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 7.79kWh/day in Summer.
Autumn
Average 4.51kWh/day in Autumn.
Winter
Average 3.19kWh/day in Winter.
Spring
Average 6.25kWh/day in Spring.

 

Ideally tilt fixed solar panels 30° North in Rafael Castillo, Argentina

To maximize your solar PV system's energy output in Rafael Castillo, Argentina (Lat/Long -34.7189, -58.6154) throughout the year, you should tilt your panels at an angle of 30° 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: -34.7189, Longitude: -58.6154, the ideal angle to tilt panels is 30° North

Seasonally adjusted solar panel tilt angles for Rafael Castillo, 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 Rafael Castillo, Argentina. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 30° North tilt angle throughout the year.

Overall Best Summer Angle Overall Best Autumn Angle Overall Best Winter Angle Overall Best Spring Angle
18° North in Summer 40° North in Autumn 49° North in Winter 27° 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 Rafael Castillo, Argentina as follows: In Summer, set the angle of your panels to 18° facing North. In Autumn, tilt panels to 40° facing North for maximum generation. During Winter, adjust your solar panels to a 49° angle towards the North for optimal energy production. Lastly, in Spring, position your panels at a 27° angle facing North to capture the most solar energy in Rafael Castillo, 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 Rafael Castillo, 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 Rafael Castillo, 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 Rafael Castillo, Argentina

The area surrounding Rafael Castillo in Buenos Aires Province, Argentina, is characterized by predominantly flat terrain typical of the Pampas region. This expansive lowland plain features minimal elevation changes, with the topography generally maintaining a consistent, level profile across the landscape. The elevation in this region typically ranges between 20-30 meters above sea level, with very gradual slopes that are barely perceptible to the naked eye. Rafael Castillo sits within the greater Buenos Aires metropolitan area, in La Matanza Partido. The surrounding terrain lacks significant natural features like mountains, valleys, or major rivers that would create topographical variation. This flatness extends for considerable distances in all directions, creating an uninterrupted horizon that is characteristic of the Pampean plains.

Soil and Land Characteristics

The soils in this region are predominantly fertile loess deposits, which have historically made the Pampas one of Argentina's most productive agricultural regions. The area around Rafael Castillo has seen significant urban development as part of Greater Buenos Aires, but the natural landscape features minimal tree cover and naturally supports grassland vegetation where undeveloped. Drainage in the area is generally poor due to the flat terrain, with some seasonal wetness in certain locations during rainy periods. Small streams and drainage channels exist throughout the region, but they create minimal topographical variation.

Potential Areas for Solar PV Development

The flat terrain surrounding Rafael Castillo presents several advantages for large-scale solar photovoltaic (PV) installations. The most suitable areas would be found in the less urbanized zones extending to the south and southwest of Rafael Castillo. These areas maintain the characteristic flat topography while having fewer dense settlements. The open plains to the south, extending toward CaƱuelas and Marcos Paz, offer particularly promising conditions. These areas combine favorable terrain with lower population density compared to the more urbanized northern and eastern directions. The flat landscape in these southern regions would minimize earthworks and site preparation costs for solar installations. Areas to the west, toward General Las Heras, also present viable options for solar development. These locations maintain the advantageous flat topography while being sufficiently removed from the densest parts of the metropolitan area. The consistent elevation and absence of significant natural obstacles mean that shading issues would be minimal across large installations.

Topographical Considerations for Solar Development

The minimal slope across the region means that solar arrays could be installed with consistent orientation without requiring significant terrain modification. This uniformity would allow for optimized panel positioning to maximize solar capture throughout the day. The lack of significant topographical features also means that access for construction and maintenance would be straightforward across most potential sites. Road development and infrastructure integration would face few natural barriers in this landscape. One consideration within this flat landscape is proper drainage planning for solar installations. Despite the minimal precipitation in some seasons, the flat terrain can lead to poor natural drainage during heavy rainfall events. Solar developments would need appropriate water management systems to prevent pooling around infrastructure. The expansive nature of the Pampas landscape around Rafael Castillo means that large-scale solar installations could be developed with minimal fragmentation, allowing for efficient facility design and operation across substantial contiguous areas.

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 Rafael Castillo, Argentina
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Saturday 28th of June 2025
Last Updated: Monday 21st of July 2025

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?

"Así como el sol le da bomba a los paneles solares, el café nos pone pilas para seguir con nuestra investigación y desarrollo, ¡vamos que se puede!" 😊
Buy me a coffee - Thanks for your support!

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.

Worldwide Solar PV Analysis of 20,000 Locations

Helping you assess viability of solar PV for your site

profileSOLAR on YouTube

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.

Calculate Your Optimal Solar Panel Tilt Angle