Solar Energy Potential in Arapoema, Tocantins, Brazil

Arapoema, Tocantins, Brazil, located at latitude -7.7201, longitude -49.0346, offers excellent conditions for solar energy generation throughout the year. This tropical location benefits from consistent sunlight patterns, with seasonal variations defined more by wet and dry periods rather than significant temperature differences. The solar energy production potential at this location shows impressive output across all seasons. During winter, the area achieves its peak performance with approximately 6.34kWh per day for each kilowatt of installed solar capacity. Spring follows with 5.62kWh/day, autumn with 5.49kWh/day, and summer with 5.17kWh/day per installed kilowatt. For fixed solar panel installations in Arapoema, Tocantins, the optimal tilt angle to maximize year-round energy production is 9 degrees facing North. This specific angle has been determined by analyzing the solar elevation patterns at this latitude and weighting them according to the daily photovoltaic potential.

Seasonal Performance Analysis

Interestingly, winter months provide the highest solar energy generation potential in Arapoema. This pattern differs from locations in higher latitudes where summer typically dominates production. The increased winter performance likely results from clearer skies during the dry season, allowing more direct sunlight to reach the panels. Spring and autumn offer similar strong performance levels, while summer shows slightly lower but still very productive output. The relatively consistent production across seasons makes Arapoema an ideal location for solar installations that can provide reliable power throughout the year.

Environmental and Weather Considerations

Despite the favorable conditions, several environmental factors could potentially impact solar production in Arapoema:

• Heavy rainfall during the wet season may reduce solar exposure and efficiency
• Dust accumulation during the dry season can create a film on panels that diminishes performance
• High humidity levels may occasionally cause condensation on panel surfaces
• Potential for tropical storms that could physically damage installations

Preventative Measures for Installation

To maximize energy production despite these challenges, several preventative measures should be considered during installation: Installing panels at the optimal 9-degree tilt helps with natural cleaning during rainfall events. Additionally, implementing a regular cleaning schedule, particularly during the dry season, will prevent dust buildup. Using high-quality panels with anti-reflective coatings can improve performance in high humidity conditions. Sturdy mounting systems designed to withstand tropical storm conditions are essential. Elevated installations can prevent damage from potential flooding during intense wet seasons. Incorporating lightning protection systems is also advisable given the tropical climate. With these considerations addressed, Arapoema's consistent year-round solar radiation makes it an excellent location for photovoltaic energy production, with minimal seasonal fluctuations compared to locations at higher latitudes.

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 Arapoema

Seasonal solar PV output for Latitude: -7.7201, Longitude: -49.0346 (Arapoema, 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 9° North in Arapoema, Brazil

To maximize your solar PV system's energy output in Arapoema, Brazil (Lat/Long -7.7201, -49.0346) throughout the year, you should tilt your panels at an angle of 9° 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 Arapoema, 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 Arapoema, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 9° North tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
8° South in Summer	14° North in Autumn	23° North in Winter	2° 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 Arapoema, 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 Arapoema, 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 Arapoema, Brazil

The landscape surrounding Arapoema, Brazil is characterized by a diverse topography typical of the transition between the Amazon Basin and the Brazilian Central Plateau. Situated in the northern part of Tocantins state, Arapoema lies in a region where gently rolling hills gradually give way to more level terrain. The elevation in this area generally ranges between 200 and 300 meters above sea level, with some variations across the broader region. The topographical profile of Arapoema features a mix of low-lying plains and modest undulations, creating a slightly rolling landscape rather than dramatic relief. This area is part of the larger Araguaia River basin, with the regional drainage system eventually feeding into this major tributary of the Tocantins River. The natural vegetation transitions between tropical rainforest and cerrado (savanna) ecosystems, though much of the original vegetation has been modified by agricultural activities.

Solar PV Potential Areas

Several characteristics of the topography around Arapoema make certain nearby areas particularly suitable for large-scale solar photovoltaic development. The most promising locations for solar PV installations would be the elevated, relatively flat plateaus found to the east and southeast of Arapoema. These areas benefit from minimal shading concerns due to their open exposure and limited topographical obstacles. The gently sloping terrain that extends toward the south and southwest of the municipality also presents favorable conditions for solar development. These areas typically have good drainage characteristics, reducing flood risks that could potentially damage infrastructure. The modest incline of these lands can actually be advantageous for solar panel placement, as a slight tilt toward the north (in the Southern Hemisphere) can optimize solar energy capture. Areas to avoid would include the lower-lying regions closer to water bodies and drainage channels, particularly during the rainy season when localized flooding may occur. The western portions of the region, which feature more variable terrain and potentially greater tree cover, would require more extensive land preparation and might present challenges for large-scale installations. The soil composition in the optimal areas tends to be stable, providing good foundation conditions for solar array mounting systems. The natural clearings in the cerrado landscape also reduce the need for extensive vegetation removal, minimizing the environmental impact and preparation costs for solar development projects. Climate factors complement the topographical advantages, with the region experiencing strong solar radiation throughout the year, particularly during the dry season from May to September when cloud cover is minimal. The relatively consistent elevation of the preferred areas helps avoid localized fog or mist formation that might otherwise reduce solar efficiency in more varied terrain.

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.

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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.