San Rafael, Mendoza, Argentina, located in the Southern Sub Tropics, offers a promising environment for solar energy generation throughout the year. This location experiences significant seasonal variations in solar energy production, with peak performance during the summer months.

Seasonal Solar Performance

The solar energy output at this location varies considerably across the seasons:

• Summer: 8.12 kWh/day
• Spring: 7.38 kWh/day
• Autumn: 4.73 kWh/day
• Winter: 3.75 kWh/day

These figures represent the expected daily electricity output per kilowatt of installed solar capacity.

Optimal Production Periods

The most favorable times for solar energy generation in San Rafael are during the summer and spring seasons. These periods offer longer daylight hours and more direct sunlight, resulting in higher energy production. The summer months, in particular, provide the peak performance for solar panels.

Panel Installation Angle

For fixed panel installations in San Rafael, Mendoza, the ideal tilt angle to maximize year-round solar production is 30 degrees facing North. This angle optimizes the panels' exposure to sunlight throughout the year, accounting for the Earth's elliptical orbit and the location's specific latitude.

Environmental Considerations

While San Rafael generally offers favorable conditions for solar energy production, there are some environmental factors to consider. The region can experience occasional dust storms, which may temporarily reduce panel efficiency. Regular cleaning and maintenance of solar panels can help mitigate this issue.

Additionally, the area may face hailstorms during certain times of the year. To protect against potential damage, it's advisable to install hail-resistant panels or protective covers. These preventative measures can help ensure consistent energy production and longevity of the solar installation.

Overall, San Rafael presents a good location for solar PV installations, with ample sunshine throughout the year and particularly high potential during the summer and spring seasons. By addressing the few environmental challenges through proper installation and maintenance practices, solar energy can be a reliable and efficient power source in this Argentine city.

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 Rafael

Seasonal solar PV output for Latitude: -34.6029, Longitude: -68.3356 (San Rafael, 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 30° North in San Rafael, Argentina

To maximize your solar PV system's energy output in San Rafael, Argentina (Lat/Long -34.6029, -68.3356) 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.

Seasonally adjusted solar panel tilt angles for San Rafael, 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 Rafael, 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
19° North in Summer	40° North in Autumn	50° North in Winter	28° 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 Rafael, 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 Rafael, 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 Rafael, Argentina

San Rafael, Argentina, is situated in a diverse topographical region characterized by a transition from flat plains to rolling hills and mountainous terrain. The city itself lies in a relatively flat area known as the Diamante Valley, surrounded by gently undulating landscapes. To the west, the terrain becomes more rugged as it approaches the foothills of the Andes Mountains, with elevations gradually increasing. The area around San Rafael features a mix of agricultural land, semi-arid regions, and some forested areas. The Diamante River flows through the region, creating a lush oasis in an otherwise dry environment. This river and its tributaries have carved out valleys and canyons in the surrounding landscape, adding to the topographical variety.

Potential Areas for Large-Scale Solar PV

When considering locations for large-scale solar photovoltaic (PV) installations near San Rafael, several factors come into play. The most suitable areas would be those with abundant sunlight, minimal shading, and relatively flat terrain to reduce installation costs and maximize efficiency. The semi-arid plains to the east and southeast of San Rafael present promising opportunities for solar PV development. These areas receive ample sunlight throughout the year and offer vast expanses of flat or gently sloping land. The lack of tall vegetation or geographical features that could cast shadows makes these regions ideal for solar panel placement. Another potential area for solar PV installations lies in the agricultural lands surrounding the city. While some of this land is actively cultivated, there may be opportunities to integrate solar farms with existing agricultural practices, a concept known as agrivoltaics. This approach could provide dual benefits of energy production and crop cultivation. It's important to note that while the mountainous regions to the west receive abundant sunlight, their rugged terrain and potential for shading from nearby peaks make them less suitable for large-scale solar PV projects. However, smaller installations on south-facing slopes could still be viable in these areas. When planning solar PV projects, it's crucial to consider factors beyond topography, such as proximity to existing power infrastructure, local regulations, and environmental impact. Detailed site surveys and environmental assessments would be necessary to determine the most appropriate locations for large-scale solar PV installations in the San Rafael region.

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.