Passo Fundo, Rio Grande do Sul, Brazil, located in the Southern Sub Tropics at latitude -28.2669 and longitude -52.403, offers a moderately favorable environment for solar PV energy generation throughout the year. The location experiences significant seasonal variations in solar energy production, with peak performance during the summer months.

Seasonal Solar Energy Production

Solar PV systems in Passo Fundo can expect the following daily electricity output per kilowatt of installed capacity:

• Summer: 7.41 kWh/day
• Spring: 6.03 kWh/day
• Autumn: 4.91 kWh/day
• Winter: 3.60 kWh/day

These figures indicate that solar energy production is most efficient during the summer and spring seasons, with a noticeable decline during autumn and winter.

Optimal Times for Solar Generation

The most ideal period for solar energy generation in Passo Fundo is from late spring through early autumn, typically spanning from October to March. During these months, longer daylight hours and more direct sunlight contribute to higher energy yields. However, even during the less productive winter months, the region still receives a reasonable amount of sunlight for energy generation.

Panel Tilt Angle for Maximum Efficiency

For fixed panel installations in Passo Fundo, Rio Grande do Sul, the optimal tilt angle to maximize year-round solar PV production is 24 degrees facing North. This angle helps to capture the most sunlight throughout the year, accounting for the location's latitude and the Earth's elliptical orbit.

Environmental and Weather Considerations

While Passo Fundo generally offers favorable conditions for solar energy production, there are some factors that could potentially impact system performance: 1. Rainfall: The region experiences regular rainfall throughout the year, which can temporarily reduce solar panel efficiency. Installing panels with good drainage and using water-resistant components can mitigate this issue. 2. Cloud cover: Occasional cloudy days, especially during winter, may reduce energy output. Using high-efficiency panels and incorporating energy storage solutions can help maintain consistent power supply during these periods. 3. Temperature variations: While not extreme, temperature fluctuations between seasons can affect panel efficiency. Choosing temperature-tolerant panels and ensuring proper ventilation can help maintain optimal performance across different weather conditions.

By considering these factors and implementing appropriate preventative measures during installation, solar PV systems in Passo Fundo can achieve reliable and efficient energy production throughout the year.

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 3161 locations across Brazil. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.

Link: Solar PV potential in Brazil by location

Solar output per kW of installed solar PV by season in Passo Fundo

Seasonal solar PV output for Latitude: -28.2669, Longitude: -52.403 (Passo Fundo, Brazil), 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 24° North in Passo Fundo, Brazil

To maximize your solar PV system's energy output in Passo Fundo, Brazil (Lat/Long -28.2669, -52.403) throughout the year, you should tilt your panels at an angle of 24° 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 Passo Fundo, Brazil

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 Passo Fundo, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 24° North tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
12° North in Summer	33° North in Autumn	43° North in Winter	21° 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 Passo Fundo, Brazil

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 Passo Fundo, Brazil.

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 Passo Fundo, Brazil

The topography around Passo Fundo, Brazil, located at latitude -28.2669 and longitude -52.403, is characterized by gently rolling hills and plateaus. This region is part of the Southern Brazilian Plateau, which features a mix of undulating terrain and relatively flat areas. The landscape is dotted with patches of native forests, interspersed with agricultural fields and grasslands. The elevation in this area typically ranges from 600 to 800 meters above sea level, providing a varied and picturesque setting. The city of Passo Fundo itself sits on a slightly elevated area, with the surrounding countryside gradually sloping down towards river valleys. The Rio Passo Fundo, a significant water body in the region, has shaped much of the local topography over time, carving gentle valleys and creating natural drainage systems. This diverse terrain contributes to the area's rich biodiversity and agricultural potential.

Suitability for Large-Scale Solar PV

When considering areas nearby Passo Fundo for large-scale solar photovoltaic (PV) installations, several factors come into play. The gently rolling hills and plateaus in the region offer promising locations for solar farms. Areas to the north and west of Passo Fundo, where the terrain tends to be more open and less forested, would be particularly well-suited for solar PV development. These locations benefit from relatively flat expanses that receive ample sunlight throughout the year. The slight elevations can also be advantageous, as they may reduce the risk of shading from surrounding vegetation or structures. Additionally, the agricultural nature of much of the land in this region means that there are large, open spaces that could potentially be repurposed or dual-purposed for solar energy production. It's important to note that while the topography is generally favorable, site-specific assessments would be necessary to determine the most optimal locations. Factors such as proximity to existing power infrastructure, local environmental considerations, and land ownership patterns would all play crucial roles in identifying the best areas for large-scale solar PV projects near Passo Fundo.

Brazil solar PV Stats as a country

Brazil ranks 13th in the world for cumulative solar PV capacity, with 13,708 total MW's of solar PV installed. This means that 2.50% of Brazil's total energy as a country comes from solar PV (that's 31st in the world). Each year Brazil is generating 64 Watts from solar PV per capita (Brazil ranks 47th in the world for solar PV Watts generated per capita). [source]

Are there incentives for businesses to install solar in Brazil?

Yes, there are several incentives for businesses wanting to install solar energy in Brazil. The Brazilian government offers a range of tax credits and other financial incentives to encourage the adoption of renewable energy sources such as solar power. These include reduced import taxes on solar equipment, accelerated depreciation of investments in renewable energy projects, and preferential financing from public banks. Additionally, some states offer additional incentives such as subsidies or grants for businesses that install solar systems.

Do you have more up to date information than this on incentives towards solar PV projects in Brazil? 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.