Viçosa, Brazil, situated in the tropical region, offers a promising location for solar energy generation. The consistent sunlight throughout the year, typical of tropical climates, provides a solid foundation for solar PV installations.

Seasonal Solar Performance

The solar energy output in Viçosa varies across the meteorological seasons, but maintains a relatively high level year-round. Spring emerges as the most productive season, yielding 7.04 kWh per day for each kilowatt of installed solar capacity. Summer follows closely with 6.88 kWh/day, while autumn and winter see slightly reduced outputs of 5.70 kWh/day and 4.89 kWh/day, respectively.

This data indicates that Viçosa experiences favorable conditions for solar energy production throughout the year, with peak performance during spring and summer months. The relatively small variation between seasons suggests a consistent and reliable energy source.

Optimal Panel Positioning

For fixed solar panel installations in Viçosa, the ideal tilt angle to maximize year-round energy production is 8 degrees facing North. This slight tilt helps optimize the panels' exposure to sunlight throughout the year, accounting for the location's proximity to the equator and the Earth's elliptical orbit.

Environmental Considerations

While Viçosa presents generally favorable conditions for solar energy production, there are a few environmental factors to consider:

• Rainfall: The region experiences a wet season, which could temporarily reduce solar efficiency due to cloud cover.
• Dust and pollen: These can accumulate on panels, potentially decreasing their effectiveness.

To mitigate these issues, regular cleaning and maintenance of solar panels is crucial. Additionally, installing panels at the recommended tilt angle can help with natural cleaning during rainfall. Implementing a monitoring system can also help detect and address any drops in efficiency promptly.

Overall, Viçosa's tropical location and consistent sunlight make it an ideal site for solar PV installations, with the potential for high energy yields throughout the year.

Note: The Tropics are located between 23.5° North and -23.5° South of the equator.

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 Viçosa, Alagoas

Seasonal solar PV output for Latitude: -9.3629, Longitude: -36.3217 (Viçosa, Alagoas, 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 8° North in Viçosa, Alagoas, Brazil

To maximize your solar PV system's energy output in Viçosa, Alagoas, Brazil (Lat/Long -9.3629, -36.3217) throughout the year, you should tilt your panels at an angle of 8° 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 Viçosa, Alagoas, 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 Viçosa, Alagoas, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 8° North tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
6° South in Summer	15° North in Autumn	25° North in Winter	3° 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 Viçosa, Alagoas, 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 Viçosa, Alagoas, 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 Viçosa, Alagoas, Brazil

The topography around Viçosa, Brazil, located at latitude -9.3629 and longitude -36.3217, is characterized by a diverse landscape typical of the northeastern Brazilian state of Alagoas. This region features a mix of gently rolling hills, shallow valleys, and some flat areas interspersed throughout the terrain. The elevation in this area generally ranges from about 200 to 400 meters above sea level, creating a moderately undulating landscape. Viçosa itself is situated in a slightly elevated area, with the surrounding countryside gradually descending towards the coastal plains to the east. The region is part of the Brazilian Atlantic Forest biome, although much of the original forest cover has been cleared for agriculture and urban development over the centuries. The local climate is tropical, with warm temperatures year-round and a distinct wet season.

Potential for Large-Scale Solar PV

When considering areas nearby that would be most suited to large-scale solar photovoltaic (PV) installations, several factors come into play. The ideal locations for solar farms in this region would be relatively flat areas with good sun exposure throughout the day. These conditions are more likely to be found in the following nearby areas: To the east and southeast of Viçosa, the terrain becomes gradually flatter as it approaches the coastal region. These areas, while still maintaining some gentle slopes, offer larger expanses of land that could accommodate solar arrays without significant topographical obstacles. The reduced tree cover in these areas also contributes to better solar exposure. The agricultural lands surrounding Viçosa, particularly those used for sugarcane cultivation, present opportunities for solar farm development. These areas are often already cleared and have the necessary infrastructure for accessing and maintaining large installations. Some of the higher plateaus in the region, while more limited in size, could also be suitable for solar PV projects. These elevated areas often have fewer obstructions to sunlight and could benefit from cooler temperatures, which can improve solar panel efficiency. It's important to note that while the topography around Viçosa is generally favorable for solar energy development, other factors such as land ownership, proximity to power grids, and environmental considerations would also play crucial roles in determining the most suitable locations for large-scale solar PV installations.

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.