Campo Maior, Piauí, Brazil presents an excellent location for year-round solar energy generation, with consistently strong performance across all seasons. The solar output data shows this tropical location delivers reliable energy production throughout the year.

Seasonal Solar Performance

The location demonstrates impressive consistency in solar energy generation. Spring emerges as the peak season with 6.82kWh per day per kW of installed solar capacity, followed closely by winter at 6.44kWh/day. Autumn produces 6.03kWh/day, while summer generates 5.91kWh/day per kW installed. This seasonal pattern is typical for tropical locations, where the dry season (typically winter and spring months) often provides clearer skies and optimal conditions for solar energy production. The relatively small variation between seasons - less than 1kWh difference between the highest and lowest performing seasons - makes this location exceptionally reliable for solar installations.

Optimal Installation Configuration

For fixed panel installations at Campo Maior, Piauí, the ideal tilt angle is 5 degrees facing North to maximize total year-round solar production. This shallow angle reflects the location's proximity to the equator, where the sun travels high overhead throughout the year.

Environmental and Weather Considerations

Several local factors could potentially impact solar production at this location, though most can be effectively managed with proper planning:

• Tropical rainfall and humidity: The wet season can reduce solar output due to cloud cover and frequent rain showers
• Dust and debris accumulation: Dry periods may lead to dust buildup on panels, reducing efficiency
• High temperatures: Intense tropical heat can reduce panel efficiency
• Vegetation growth: Rapid plant growth in tropical climates can create shading issues

Preventative Measures for Optimal Performance

Several strategies can help maintain peak solar production at this location. Regular panel cleaning becomes especially important during dry periods when dust accumulation is highest. Installing panels with adequate ventilation spacing helps combat efficiency losses from high temperatures. Proper vegetation management around solar installations prevents shading issues that could significantly impact energy output. Using high-quality panels rated for tropical conditions ensures better performance in high humidity and temperature environments. Installing monitoring systems allows for quick identification of performance issues, while choosing corrosion-resistant mounting hardware helps panels withstand the humid tropical climate over their operational lifetime. Overall, Campo Maior represents an ideal location for solar energy generation, with strong and consistent output year-round and manageable environmental challenges that can be addressed through proper installation practices.

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 Campo Maior

Seasonal solar PV output for Latitude: -4.785, Longitude: -42.1102 (Campo Maior, 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 Campo Maior, Brazil

To maximize your solar PV system's energy output in Campo Maior, Brazil (Lat/Long -4.785, -42.1102) 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 Campo Maior, 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 Campo Maior, 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
11° South in Summer	11° North in Autumn	20° North in Winter	1° 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 Campo Maior, 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 Campo Maior, 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 Campo Maior, Brazil

Topographical Features Around Campo Maior

Campo Maior sits in the northeastern Brazilian state of Piauí, positioned within the expansive Caatinga biome that characterizes much of the region's landscape. The terrain surrounding this municipality is predominantly flat to gently rolling, with elevations typically ranging from 200 to 400 meters above sea level. This relatively modest elevation profile creates a landscape of low hills interspersed with broad, open plains that extend across much of the surrounding countryside.

The area experiences a semi-arid climate typical of Brazil's interior northeast, with the topography reflecting this dry environment through sparse vegetation and exposed rocky outcrops. The landscape is punctuated by seasonal streams and small rivers that flow intermittently, creating shallow valleys that cut through the otherwise uniform terrain. These waterways have carved gentle depressions in the landscape over time, but the overall character remains one of relatively stable, undulating plains.

Rocky formations and scattered hills break up the monotony of the plains, with some areas featuring exposed bedrock and thin soil layers. The vegetation consists primarily of drought-resistant shrubs and small trees characteristic of the Caatinga, creating an open canopy that allows substantial sunlight to reach the ground throughout most of the year.

Optimal Areas for Large-Scale Solar Development

The expansive flat plains surrounding Campo Maior present excellent opportunities for large-scale solar photovoltaic installations. These areas offer several key advantages, including minimal grading requirements and reduced construction costs due to the gentle topography. The most suitable locations would be the broad plateaus and gently sloping areas that extend northeast and southeast of the municipality, where the terrain remains consistently level over large distances.

Areas with minimal vegetation density would be particularly attractive for solar development, as they would require less land clearing and environmental impact mitigation. The scattered flat-topped hills and mesas in the region could also serve as excellent sites, as they often provide stable ground conditions and good drainage while maintaining accessibility for construction and maintenance equipment.

The proximity to existing infrastructure, including roads and transmission lines that connect Campo Maior to larger urban centers, makes certain areas particularly valuable for solar development. Locations within reasonable distance of these transportation and electrical networks would minimize the additional infrastructure investment required to bring solar projects online.

Ground conditions in much of the surrounding area appear stable, with bedrock relatively close to the surface in many locations. This geological stability would support the foundation requirements for large solar arrays while providing good drainage to prevent water accumulation that could affect equipment performance. The open nature of the landscape also ensures minimal shading from surrounding terrain features, allowing solar installations to capture sunlight throughout the day without obstruction from hills or valleys.

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.