Cavalcante, Goiás, Brazil represents an excellent location for year-round solar photovoltaic energy generation. Located in the tropical region at coordinates -13.5953, -47.7606, this area benefits from consistent sunlight throughout most of the year, with seasons characterized more by wet and dry periods rather than dramatic temperature variations.

Solar Energy Production Performance

The solar energy output at Cavalcante demonstrates strong and consistent performance across all seasons. Summer produces 5.48 kWh per day per kW of installed solar capacity, while autumn shows improved performance at 6.00 kWh per day. Winter delivers the highest output at 6.20 kWh per day, followed by spring at 6.10 kWh per day. The winter months emerge as the optimal period for solar generation, likely due to clearer skies and reduced cloud cover during the dry season. Spring and autumn also provide excellent production levels, while summer, despite being the lowest performing season, still delivers substantial energy output.

Optimal Panel Configuration

For maximum year-round solar production at Cavalcante, Goiás, fixed solar panels should be tilted at 14 degrees facing north. This angle has been calculated to optimize total annual energy output by accounting for the sun's path throughout the year, Earth's elliptical orbit, and local solar irradiance patterns.

Environmental and Weather Challenges

Several local factors could potentially impact solar energy production in Cavalcante:

• Seasonal rainfall: The wet season brings increased cloud cover and precipitation, which can reduce solar irradiance and panel efficiency
• High humidity: Tropical humidity levels may lead to moisture-related issues and reduced panel performance
• Dust and debris accumulation: Dry season conditions can cause dust buildup on panel surfaces
• Vegetation growth: The tropical climate supports rapid plant growth that could create shading issues

Preventative Measures for Optimal Performance

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

• Regular cleaning systems: Install automated cleaning systems or schedule frequent manual cleaning to remove dust, debris, and organic matter from panel surfaces
• Proper drainage: Ensure adequate drainage around installations to prevent water accumulation and humidity-related damage
• Vegetation management: Maintain clear zones around solar installations and implement regular trimming schedules to prevent shading
• Quality mounting systems: Use corrosion-resistant materials designed for tropical climates to withstand high humidity and occasional heavy rainfall
• Monitoring systems: Install performance monitoring equipment to quickly identify and address any efficiency issues

Despite these potential challenges, Cavalcante's consistent high solar output throughout the year makes it a highly favorable location for solar PV installations, with proper planning and maintenance ensuring optimal 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 Cavalcante

Seasonal solar PV output for Latitude: -13.5953, Longitude: -47.7606 (Cavalcante, 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 Cavalcante, Brazil

To maximize your solar PV system's energy output in Cavalcante, Brazil (Lat/Long -13.5953, -47.7606) 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 Cavalcante, 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 Cavalcante, 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
2° 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 Cavalcante, 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 Cavalcante, 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 Cavalcante, Brazil

Topography Around Cavalcante

Cavalcante sits in the northeastern region of Goiás state, positioned within the expansive Brazilian Cerrado savanna ecosystem. The terrain around this municipality is characterized by a gently undulating landscape typical of the Central Brazilian Plateau, with elevations generally ranging between 800 and 1,200 meters above sea level. The topography features broad, rolling hills interspersed with flat to moderately sloped plateaus that extend across much of the surrounding countryside.

The region displays the classic geological formations of the Cerrado, including ancient crystalline rocks and sedimentary deposits that have been weathered over millions of years. These formations create a landscape of gentle rises and shallow valleys, with occasional more pronounced escarpments and rocky outcrops breaking the otherwise moderate relief. The area experiences well-defined wet and dry seasons, which have shaped both the vegetation patterns and soil characteristics across the terrain.

Drainage patterns in the vicinity consist of numerous small streams and seasonal watercourses that flow toward larger river systems. These waterways have carved subtle valleys into the landscape, creating a network of gentle depressions that add variation to the overall topographic character. The soil composition varies from sandy to clayey, with many areas displaying the reddish coloration typical of tropical savanna regions.

Optimal Areas for Large-Scale Solar Development

The most suitable locations for extensive solar photovoltaic installations around Cavalcante would be the broad, flat to gently sloping plateau areas that dominate much of the surrounding landscape. These elevated plains offer several advantages for solar development, including minimal grading requirements, excellent drainage characteristics, and reduced risk of flooding during the rainy season. The relatively stable geological foundation of these plateaus also provides good support for large-scale mounting systems.

Areas with southern and southeastern exposures on the gentle hillsides would be particularly favorable, as they can maximize solar exposure while maintaining manageable slopes for installation and maintenance access. The open savanna terrain in these locations typically has sparse tree cover, reducing the need for extensive clearing operations and minimizing environmental impact during project development.

The flat valley floors between hills, while potentially attractive for their level surfaces, would generally be less suitable due to drainage concerns during the wet season and the possibility of morning fog formation that could reduce solar collection efficiency. Instead, the slightly elevated areas that rise above these valley systems would provide better conditions for consistent solar generation while maintaining the relatively flat terrain needed for large-scale installations.

Transportation access represents another important consideration, and areas near existing roads or where new access routes can be constructed without significant earthwork would be most practical for development. The moderate topography throughout much of the region means that road construction and electrical transmission line installation can typically be accomplished without major engineering challenges, making many locations potentially viable from an infrastructure standpoint.

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.