Solar Energy Potential in Oliveira, Minas Gerais, Brazil

Oliveira, Minas Gerais, Brazil, located at latitude -20.741 and longitude -44.7185, offers excellent conditions for solar energy generation throughout the year. This tropical location benefits from consistent sunlight patterns, with seasons defined more by rainfall than temperature variations. The solar energy production in Oliveira demonstrates good year-round performance with some seasonal variation. During summer months, solar panels can generate approximately 6.36 kWh per day for each kilowatt of installed capacity, representing the peak production period. In autumn, production decreases slightly to 5.77 kWh/day, while winter sees the lowest output at 5.16 kWh/day. Spring performance recovers to 5.97 kWh/day as daylight hours increase.

Seasonal Considerations

The relatively small variation between seasonal outputs (only about 19% difference between summer and winter) indicates Oliveira's favorable position for consistent solar generation throughout the year. This contrasts with locations at higher latitudes where winter production can drop to less than half of summer values. The most productive period for solar generation in Oliveira occurs from November through February (summer), when longer days and more direct sunlight maximize panel efficiency. While winter (June-August) shows reduced output, the reduction is modest compared to non-tropical locations, making year-round solar viability excellent.

Optimal Panel Installation

For fixed solar panel installations in Oliveira, Minas Gerais, the ideal tilt angle is 20 degrees facing North. This orientation maximizes year-round energy capture by optimizing the angle at which sunlight strikes the panels throughout the seasons. The northward orientation in the Southern Hemisphere works similarly to the southward orientation preferred in the Northern Hemisphere, allowing panels to capture more direct sunlight.

Environmental and Weather Considerations

Several factors could affect solar production in Oliveira:

• Seasonal rainfall: The region experiences a distinct wet season that may reduce solar output due to cloud cover. Installing slightly larger systems can compensate for reduced production during these periods.
• Dust and pollen accumulation: Agricultural activities in the region may contribute to panel soiling. Regular cleaning schedules and possibly automated cleaning systems can maintain optimal performance.
• Temperature effects: High tropical temperatures can slightly reduce panel efficiency. Ensuring adequate airflow beneath panels and selecting temperature-resistant models can mitigate this impact.

Despite these considerations, preventative measures are straightforward. Installing panels with sufficient elevation for airflow, implementing regular maintenance routines, and using quality inverters rated for tropical conditions will help maintain high production levels. Overall, Oliveira presents an excellent location for solar PV installation with minimal seasonal variation and strong year-round generation potential.

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 Oliveira

Seasonal solar PV output for Latitude: -20.741, Longitude: -44.7185 (Oliveira, 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 20° North in Oliveira, Brazil

To maximize your solar PV system's energy output in Oliveira, Brazil (Lat/Long -20.741, -44.7185) throughout the year, you should tilt your panels at an angle of 20° 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 Oliveira, 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 Oliveira, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 20° North tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
5° North in Summer	26° North in Autumn	36° North in Winter	15° 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 Oliveira, 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 Oliveira, 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 Oliveira, Brazil

The region surrounding Oliveira, Brazil, located at coordinates -20.741, -44.7185, presents a diverse topographical landscape characteristic of the inland areas of Minas Gerais state. The terrain in this area consists predominantly of rolling hills and undulating plateaus, with elevations generally ranging between 900 to 1,100 meters above sea level. This hilly landscape is part of the larger Brazilian Highlands, which dominate much of southeastern Brazil. The topography around Oliveira features a series of gentle to moderate slopes interspersed with small valleys formed by local rivers and streams. The region sits within the upper watershed of the Rio Grande basin, with numerous small waterways cutting through the landscape. These waterways have, over time, carved shallow valleys between the hills, creating a somewhat corrugated appearance to the terrain when viewed from above. Vegetation in the area transitions between the Cerrado (Brazilian savanna) and Atlantic Forest biomes, though much of the natural vegetation has been altered by agricultural activities. The original landscape of mixed grasslands and scattered trees has largely given way to pastures and crop fields, particularly coffee plantations, which thrive in the region's climate and topography.

Solar PV Potential in the Oliveira Region

For large-scale solar photovoltaic (PV) installations, several areas near Oliveira offer promising conditions. The most suitable locations would be the gently sloping hillsides and plateaus that face northward (in the Southern Hemisphere, north-facing slopes receive more direct sunlight throughout the year). These areas benefit from reduced shadowing effects and optimal sun exposure. Specifically, the more elevated plateaus located to the south and southeast of Oliveira present excellent opportunities for solar development. These higher elevation areas typically experience less atmospheric interference and receive more consistent solar radiation. Additionally, areas where the natural vegetation has already been cleared for agriculture might present lower environmental impact options for solar development. The northwestern outskirts of the municipality also show promise, as they feature some flatter terrain that would require less grading and site preparation, reducing installation costs. These areas also tend to have better accessibility via existing road networks, which is crucial for the construction and maintenance of large solar farms. It's worth noting that while the entire region receives abundant sunshine throughout the year, making it generally favorable for solar energy production, the slightly drier areas away from the major water courses would be preferable to minimize humidity-related efficiency losses and potential flooding risks. The areas with redder, well-drained soils would also provide better stability for the mounting structures required for solar panels. Areas to potentially avoid would include the steeper slopes found in some parts of the region, particularly those facing southward, as well as the low-lying areas near rivers that might be subject to seasonal flooding or have higher humidity levels that could impact equipment longevity.

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!

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.