Dom Eliseu, Pará, Brazil represents an excellent location for year-round solar energy generation. This tropical location maintains remarkably consistent solar output throughout all seasons, making it highly suitable for solar photovoltaic installations.

Seasonal Solar Performance

The solar energy production at Dom Eliseu shows impressive consistency across all four meteorological seasons. Winter delivers the highest output at 5.81 kWh per day per kW of installed capacity, closely followed by autumn at 5.77 kWh/day. Spring produces 5.62 kWh/day, while summer generates 5.23 kWh/day per kW installed. The ideal times for solar generation at this location are during the winter and autumn months, when atmospheric conditions typically provide the most favorable environment for solar energy capture. However, the relatively small variation between seasons means that solar installations will perform reliably throughout the entire year.

Optimal Panel Configuration

For fixed panel installations at Dom Eliseu, Pará, the ideal tilt angle to maximize total year-round solar production is 5 degrees North. This shallow angle reflects the location's proximity to the equator and ensures optimal sun exposure across all seasons.

Environmental and Weather Challenges

Several local factors could potentially impact solar energy production at this tropical location:

• High humidity and frequent rainfall: The tropical climate brings intense wet seasons that can reduce solar irradiance and create challenges for equipment maintenance
• Dust and debris accumulation: Dry seasons may lead to dust buildup on panels, reducing their efficiency
• Extreme heat: High temperatures can decrease solar panel efficiency and stress electrical components
• Vegetation growth: Rapid plant growth in tropical conditions can create shading issues if not properly managed

Preventative Measures for Optimal Performance

To maximize solar energy production despite these challenges, several installation strategies should be considered:

• Enhanced drainage systems: Install proper water management around solar arrays to prevent flooding during heavy rains
• Regular cleaning schedules: Implement frequent panel cleaning routines, particularly during dry seasons to remove dust accumulation
• Improved ventilation: Design installations with adequate airflow beneath panels to reduce heat buildup and maintain efficiency
• Vegetation management: Establish ongoing landscaping maintenance to prevent shading from rapidly growing tropical plants
• Corrosion-resistant materials: Use marine-grade or specially treated mounting systems and electrical components designed for high-humidity environments

Despite these considerations, Dom Eliseu's consistent solar output throughout the year makes it an attractive location for solar energy projects, provided that proper planning addresses the tropical environmental factors.

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 Dom Eliseu

Seasonal solar PV output for Latitude: -4.0827, Longitude: -47.8905 (Dom Eliseu, 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 5° North in Dom Eliseu, Brazil

To maximize your solar PV system's energy output in Dom Eliseu, Brazil (Lat/Long -4.0827, -47.8905) throughout the year, you should tilt your panels at an angle of 5° 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 Dom Eliseu, 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 Dom Eliseu, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 5° North tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
12° South in Summer	11° North in Autumn	20° North in Winter	2° South 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 Dom Eliseu, 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 Dom Eliseu, 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 Dom Eliseu, Brazil

Topographical Features of Dom Eliseu

Dom Eliseu sits in the southeastern portion of Pará state in Brazil's Amazon region, characterized by gently rolling terrain typical of the Brazilian Highlands transition zone. The landscape around this municipality features predominantly flat to moderately undulating topography, with elevations generally ranging between 150 to 300 meters above sea level. This relatively modest elevation change creates a terrain that is neither mountainous nor completely flat, but rather consists of gentle hills and broad valleys that extend across the region. The area lies within the Tocantins River basin system, which influences much of the local topographical character. Small tributaries and seasonal waterways carve shallow valleys through the landscape, creating a network of low-lying areas interspersed with slightly elevated ridges and plateaus. The terrain gradually slopes toward the northeast, following the general drainage pattern of the regional river systems that eventually flow toward the Amazon River.

Vegetation and Land Use Patterns

The natural vegetation in this region represents a transition zone between the Amazon rainforest to the north and the cerrado savanna to the south. Much of the original forest cover has been cleared for agricultural purposes, particularly cattle ranching and soybean cultivation, which has created extensive open areas across the landscape. These cleared zones typically feature gentle slopes and relatively uniform terrain that would be conducive to large-scale development projects. The remaining forested areas tend to concentrate along watercourses and in areas with steeper slopes, while the flatter, more accessible terrain has been converted to pastureland and crop fields. This land use pattern has resulted in a mosaic of open grasslands, agricultural fields, and scattered forest fragments across the rolling countryside.

Optimal Areas for Large-Scale Solar Development

The most suitable locations for large-scale solar photovoltaic installations around Dom Eliseu would be the extensive cleared agricultural areas that feature gentle slopes of less than five percent grade. These areas offer several advantages including minimal site preparation requirements, good accessibility for construction and maintenance activities, and reduced environmental sensitivity compared to forested regions. The elevated plateaus and ridge tops scattered throughout the region present particularly attractive opportunities for solar development. These areas typically feature good drainage, reduced risk of flooding during seasonal rains, and often benefit from enhanced air circulation that can help maintain optimal operating temperatures for solar panels. The slightly elevated positions also tend to have fewer obstructions from surrounding vegetation or terrain features. Large cleared cattle ranches represent another promising category of potential sites, as they often encompass hundreds or thousands of hectares of relatively flat, open terrain. These properties typically have existing access roads and electrical infrastructure that could facilitate solar development. The gentle undulations common in these ranch lands rarely present significant grading challenges and can actually be beneficial for solar array design and drainage management. Areas to avoid would include the steeper slopes near watercourses, wetland zones that may experience seasonal flooding, and the remaining forested areas that would require extensive clearing and could face environmental restrictions. The low-lying areas near streams and rivers, while generally flat, may be subject to periodic inundation during the rainy season and would likely present drainage challenges for large-scale 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!

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.