Porangatu, Goiás, Brazil represents an excellent location for year-round solar photovoltaic energy generation. Located in the tropical zone at coordinates -13.3733, -49.2546, this region benefits from consistent sunlight throughout the year, with seasons characterized more by wet and dry periods rather than significant temperature variations.

Solar Energy Production Performance

The solar energy output data for Porangatu shows remarkably consistent and high performance across all seasons. The location generates between 5.47 and 6.26 kWh per day for each kilowatt of installed solar capacity, demonstrating excellent solar potential year-round. Winter and spring emerge as the peak production seasons, with winter delivering 6.22 kWh/day per kW and spring achieving the highest output at 6.26 kWh/day per kW. Autumn follows closely with 5.91 kWh/day per kW, while summer shows the lowest but still substantial production at 5.47 kWh/day per kW. For optimal energy capture, solar panels should be installed at a fixed tilt angle of 14 degrees facing north. This angle has been calculated to maximize total year-round production by accounting for the sun's path throughout the year and weighting optimal daily angles based on solar irradiance potential.

Environmental and Weather Challenges

Several local factors could potentially impact solar energy production in Porangatu and require consideration during installation planning. Seasonal Rainfall and Humidity: The tropical climate brings distinct wet and dry seasons, with the wet season potentially causing temporary reductions in solar output due to cloud cover and frequent rainfall. High humidity levels can also contribute to dust and debris accumulation on panel surfaces. Dust and Particulate Matter: During dry seasons, dust accumulation on solar panels can significantly reduce energy production efficiency. The agricultural nature of the surrounding region may contribute additional particulate matter that settles on panel surfaces. Extreme Weather Events: Tropical regions can experience intense storms, high winds, and occasional hail, which pose risks to solar installations if not properly designed and secured.

Preventative Measures for Optimal Performance

Several strategies can help maintain high solar energy production despite these environmental challenges:

• Regular cleaning schedules: Implement routine panel washing, particularly during dry seasons and after dust storms
• Robust mounting systems: Install reinforced mounting structures designed to withstand high winds and severe weather typical of tropical climates
• Proper drainage design: Ensure installations include adequate drainage to prevent water pooling during heavy rains
• Quality panel selection: Choose solar panels with anti-reflective coatings and self-cleaning properties where possible

Vegetation Management: Maintain clear zones around solar installations to prevent shading from fast-growing tropical vegetation and reduce fire risks during dry seasons. System Monitoring: Install monitoring systems to quickly identify performance drops that may indicate cleaning needs or equipment issues, allowing for prompt maintenance intervention. Despite these challenges, Porangatu's consistent high solar output throughout the year makes it an ideal location for solar energy generation, with proper installation and maintenance practices ensuring optimal long-term performance.

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 Porangatu

Seasonal solar PV output for Latitude: -13.3733, Longitude: -49.2546 (Porangatu, 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 14° North in Porangatu, Brazil

To maximize your solar PV system's energy output in Porangatu, Brazil (Lat/Long -13.3733, -49.2546) throughout the year, you should tilt your panels at an angle of 14° 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 Porangatu, 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 Porangatu, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 14° North tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
3° South in Summer	20° North in Autumn	29° North in Winter	8° 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 Porangatu, 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 Porangatu, 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 Porangatu, Brazil

Topographical Features of the Porangatu Region

The landscape surrounding Porangatu in Goiás state presents a relatively gentle and manageable terrain typical of Brazil's Central Plateau region. This area sits within the vast Brazilian Highlands, characterized by rolling hills, broad valleys, and expansive flat-topped plateaus known locally as chapadas. The elevation around Porangatu generally ranges between 400 to 800 meters above sea level, creating a moderately elevated landscape that avoids the extremes of mountainous terrain or low-lying flood plains. The region features predominantly gentle slopes and undulating terrain, with occasional mesa-like formations and broad ridgelines that extend across the countryside. These elevated areas are interspersed with wider valley systems that have been carved by seasonal waterways and tributaries flowing toward the Tocantins River system. The topography shows the influence of ancient geological processes, resulting in weathered surfaces and relatively stable ground conditions. Much of the surrounding landscape consists of the Brazilian savanna ecosystem known as Cerrado, which naturally occurs on well-drained soils across gently sloping terrain. This environment has created extensive areas of open grassland punctuated by scattered trees and gallery forests along watercourses. The combination of climate and topography has produced soils that are generally well-drained, though they may require management for optimal agricultural or industrial use.

Optimal Areas for Large-Scale Solar Development

The most promising locations for extensive solar photovoltaic installations lie on the elevated plateau areas and gentle hillsides that characterize much of the region around Porangatu. These elevated chapada formations offer several advantages, including consistent exposure to sunlight throughout the day, natural drainage that prevents water accumulation, and relatively stable ground conditions suitable for supporting large arrays of solar panels. The broad, gently sloping ridgelines that extend northeast and southwest of Porangatu present particularly attractive opportunities for solar development. These areas typically feature gradual gradients that can accommodate extensive panel installations without requiring significant terrain modification. The natural elevation provides excellent visibility to the sky while the gentle slopes allow for optimal panel orientation and spacing. Areas of relatively flat terrain within the broader valley systems also show promise for large-scale solar installations, particularly where they offer good drainage and stable soil conditions. These locations can accommodate grid-pattern layouts that maximize efficiency in both installation and maintenance operations. The key advantage of these flatter areas lies in their potential for accommodating very large continuous installations with minimal grading requirements. The transition zones between the elevated plateaus and valley floors often present ideal compromise locations, offering moderate slopes that provide good drainage while maintaining relatively easy access for construction and maintenance activities. These areas typically feature stable soils and good connectivity to existing infrastructure networks. When considering specific site selection, the areas with southern-facing slopes would be particularly advantageous in this Southern Hemisphere location, as they receive optimal solar exposure throughout the year. The combination of appropriate slope angles, stable geology, and good drainage makes these locations especially suitable for maximizing solar energy capture while minimizing installation and maintenance challenges.

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.