Alto Alegre dos Parecis, Brazil represents an excellent location for year-round solar energy generation. This tropical location benefits from consistent sunlight throughout the year, with seasonal variations driven more by wet and dry periods than by the dramatic temperature and daylight changes seen in temperate regions.

Solar Energy Production Performance

The solar energy output at this location shows remarkably consistent performance across all seasons. Winter months deliver the highest energy production at 5.62 kWh per day per kW of installed solar capacity, followed closely by spring at 5.59 kWh/day. Autumn performs well at 5.33 kWh/day, while summer produces 5.20 kWh/day per kW installed. The relatively small variation between seasons - only about 8% difference between the highest and lowest producing seasons - makes this location particularly attractive for solar installations. This consistency means energy planners can rely on predictable output throughout the year without significant seasonal dips that might require backup power systems. For fixed panel installations at this location, the ideal tilt angle is 13 degrees North to maximize total year-round production. This relatively shallow angle reflects the location's proximity to the equator at latitude -12.122.

Environmental and Weather Challenges

Several environmental factors in this tropical location could potentially impact solar energy production:

• Heavy rainfall during wet season: Extended periods of cloud cover and frequent storms can reduce solar irradiance
• High humidity: Can lead to moisture buildup on panels and potential electrical issues
• Dust and debris accumulation: Particularly during dry seasons when vegetation and soil particles become airborne
• Intense UV exposure: Can accelerate degradation of solar panel materials and mounting systems

Preventative Measures for Optimal Performance

To ensure maximum energy production despite these challenges, several installation strategies should be considered: Regular cleaning systems are essential, particularly automated washing systems that can remove dust buildup during dry periods and maintain panel efficiency during wet seasons when debris may stick to wet surfaces. Proper drainage design becomes critical in this tropical environment. Solar mounting systems should incorporate effective water runoff channels to prevent standing water that could damage electrical components or create breeding grounds for insects and algae. Enhanced ventilation spacing between panels and mounting surfaces helps combat the high humidity environment. This improved airflow reduces the risk of moisture-related electrical problems and helps keep panels cooler, which improves their efficiency. Weather-resistant electrical components rated for tropical conditions are non-negotiable. All inverters, wiring, and connection points should be specifically designed to handle high humidity, temperature fluctuations, and potential water exposure during intense rainfall periods. UV-resistant materials throughout the installation will help combat the intense tropical sun exposure that could otherwise degrade mounting systems, wiring insulation, and even panel frames more quickly than in temperate climates. Despite these environmental considerations, Alto Alegre dos Parecis remains a highly favorable location for solar energy generation due to its consistent year-round output and minimal seasonal variation. With proper installation techniques and regular maintenance, solar systems at this location can deliver reliable, high-performance energy production 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 Alto Alegre Dos Parecis

Seasonal solar PV output for Latitude: -12.122, Longitude: -61.8494 (Alto Alegre Dos Parecis, 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 13° North in Alto Alegre Dos Parecis, Brazil

To maximize your solar PV system's energy output in Alto Alegre Dos Parecis, Brazil (Lat/Long -12.122, -61.8494) throughout the year, you should tilt your panels at an angle of 13° 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 Alto Alegre Dos Parecis, 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 Alto Alegre Dos Parecis, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 13° North tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
4° South in Summer	19° North in Autumn	28° North in Winter	6° 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 Alto Alegre Dos Parecis, 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 Alto Alegre Dos Parecis, 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 Alto Alegre Dos Parecis, Brazil

Topography of Alto Alegre dos Parecis Region

Alto Alegre dos Parecis sits within the Brazilian state of Rondônia, positioned in the heart of the Amazon Basin's transition zone where the dense rainforest gradually gives way to more open cerrado savanna landscapes. The terrain around this municipality is characterized by gently rolling hills and broad, flat plateaus that form part of the larger Parecis Plateau system. This elevated tableland extends across much of central Brazil and represents some of the most geologically stable ground in South America. The elevation in the immediate vicinity of Alto Alegre dos Parecis typically ranges between 200 and 400 meters above sea level, creating a landscape of moderate undulations rather than dramatic elevation changes. The topography consists primarily of weathered sedimentary rocks that have been shaped over millions of years into relatively smooth, rounded formations. These geological features create natural drainage patterns that flow northward toward the Amazon River system through a network of seasonal streams and small rivers. Much of the surrounding landscape has been significantly modified by agricultural development, particularly large-scale soybean and cattle farming operations that have replaced original forest cover. This human transformation has resulted in vast expanses of cleared, relatively flat agricultural land interspersed with remaining patches of native vegetation along waterways and in areas unsuitable for farming.

Optimal Areas for Large-Scale Solar Development

The most promising locations for extensive solar photovoltaic installations would be the numerous cleared agricultural plateaus that extend in all directions from Alto Alegre dos Parecis. These elevated, flat to gently sloping areas offer several distinct advantages for solar development. The cleared land eliminates the need for extensive vegetation removal, while the stable geological foundation of the Parecis Plateau provides excellent conditions for mounting large solar arrays. The broad agricultural plains to the east and south of the municipality present particularly attractive opportunities, as these areas combine optimal topographical conditions with existing infrastructure access. The relatively uniform elevation across these plateaus minimizes shading concerns between solar panel rows and allows for efficient layout designs that can maximize energy capture throughout the day. Areas of former pastureland that have been converted from cattle ranching operations represent another excellent opportunity for solar development. These locations typically feature gentle slopes of less than five degrees, which is ideal for solar installations, and often have established access roads that could support construction and maintenance activities. The transition zones between the remaining forested areas and cleared agricultural land should generally be avoided for large installations, as these locations often feature more irregular topography with steeper slopes and potential drainage issues. Similarly, areas immediately adjacent to the seasonal waterways that cross the region may present challenges due to periodic flooding and unstable soil conditions during the rainy season. The western portions of the region, where the landscape begins to transition toward the more mountainous terrain of the Andes foothills in the distance, tend to feature more pronounced topographical variation that could complicate solar installations. However, many of the intermediate plateaus in this direction still offer suitable conditions for development, particularly those that have already been cleared for agricultural use.

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.