Piranhas, Brazil represents an excellent location for year-round solar energy generation, with consistently high electricity output throughout all seasons. Located in the tropical region at coordinates -16.3944, -51.828, this area benefits from the stable sunlight patterns typical of tropical climates.

Solar Energy Production Performance

The solar energy output at Piranhas demonstrates remarkable consistency across the year. Summer and spring seasons deliver the highest production at 6.23 kWh per day per kW of installed solar capacity. Autumn and winter maintain strong performance with 5.87 kWh/day and 5.90 kWh/day respectively. This minimal seasonal variation makes Piranhas particularly attractive for solar installations, as energy production remains reliable throughout the year. The difference between the best and worst performing seasons is only about 6%, which is exceptionally small compared to many other global locations.

Optimal Installation Configuration

For fixed panel installations at this location, the ideal tilt angle is 16 degrees facing North to maximize total year-round solar production. This angle has been calculated by analyzing daily solar elevation angles, optimal panel positioning, and weighting these factors using solar irradiance data that accounts for Earth's elliptical orbit around the sun.

Environmental and Weather Factors

Several local factors could potentially impact solar energy production at Piranhas and require consideration during installation planning:

• Tropical rainfall patterns: Heavy seasonal rains during wet periods can reduce solar output and may cause temporary flooding in low-lying areas
• High humidity levels: Persistent moisture can lead to corrosion of metal components and reduced panel efficiency over time
• Dust accumulation: Dry season conditions can result in significant dust buildup on solar panels, reducing their effectiveness
• Extreme heat: Tropical temperatures can cause solar panels to operate less efficiently and may accelerate component degradation

Preventative Measures for Optimal Performance

To address these environmental challenges and ensure maximum energy production, several installation strategies should be implemented: Elevated mounting systems should be used to prevent flood damage and improve air circulation around panels. Regular cleaning schedules become essential during dry periods to remove dust accumulation that can significantly reduce output. Anti-corrosion treatments and marine-grade materials should be specified for all metal components to withstand the high humidity environment. Adequate spacing between panels allows for better heat dissipation and easier maintenance access. Installing monitoring systems helps identify performance issues quickly, while choosing panels and inverters rated for high-temperature operation ensures reliable performance in tropical conditions. Proper drainage design prevents water accumulation around installation sites during heavy rainfall periods. Despite these considerations, the consistently high solar output values throughout the year confirm that Piranhas offers exceptional conditions for solar energy generation, making it a highly suitable location for both residential and commercial solar installations.

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 Piranhas, Goiás

Seasonal solar PV output for Latitude: -16.3944, Longitude: -51.828 (Piranhas, Goiás, 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 16° North in Piranhas, Goiás, Brazil

To maximize your solar PV system's energy output in Piranhas, Goiás, Brazil (Lat/Long -16.3944, -51.828) throughout the year, you should tilt your panels at an angle of 16° 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 Piranhas, Goiás, 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 Piranhas, Goiás, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 16° North tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
1° North in Summer	23° North in Autumn	32° North in Winter	11° 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 Piranhas, Goiás, 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 Piranhas, Goiás, 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 Piranhas, Goiás, Brazil

Topographical Characteristics of the Piranhas Region

The area around Piranhas in central Brazil is characterized by relatively flat to gently rolling terrain typical of the Brazilian Cerrado biome. This region sits within the vast Central Plateau of Brazil, where elevations generally range from 300 to 600 meters above sea level. The landscape features broad, open plains interrupted by occasional low hills and shallow valleys carved by seasonal watercourses. The topography is dominated by extensive tablelands known locally as chapadas, which provide large expanses of relatively level ground. These elevated plains are separated by gentle slopes and wide valleys that drain toward the major river systems of the region. The terrain lacks significant mountainous features or steep gradients, making it generally accessible for development and infrastructure projects. Soil composition in the area typically consists of well-drained lateritic soils common to the Cerrado, with areas of sandy and clay-rich deposits. The region experiences distinct wet and dry seasons, which have shaped the landscape through centuries of erosion and sediment deposition. Natural vegetation consists primarily of savanna grasslands dotted with scattered trees and gallery forests along waterways.

Optimal Areas for Large-Scale Solar Development

The expansive chapada formations surrounding Piranhas present excellent opportunities for large-scale solar photovoltaic installations. These elevated plateaus offer several key advantages including vast areas of relatively flat terrain that minimize grading and construction costs while maximizing panel efficiency through optimal positioning. The most suitable locations would be the higher elevation tablelands to the north and east of Piranhas, where the terrain is most level and obstacles are minimal. These areas provide excellent drainage during the rainy season while maintaining stable ground conditions throughout the year. The open nature of the landscape ensures minimal shading from topographical features and allows for flexible array layouts. Areas with gentle south-facing slopes would be particularly advantageous, as they can be utilized to optimize panel angles for maximum solar exposure. The region's relatively uniform elevation changes mean that large installations can be developed without significant terrain modifications, reducing environmental impact and construction complexity. Transportation access is another important consideration, and the flatter areas closer to existing road networks would be most practical for large-scale development. The stable geological conditions typical of the Central Plateau provide solid foundations for mounting systems, while the open topography facilitates maintenance access and grid connection infrastructure.

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.