Caldazinha, Goiás, Brazil presents an excellent location for year-round solar energy generation, with consistently high electricity output throughout all seasons. Located in the tropical region where sunlight remains relatively stable year-round, this area benefits from the characteristic wet and dry seasonal patterns rather than the dramatic temperature variations seen in temperate climates.

Solar Energy Production Potential

The solar energy output data for Caldazinha demonstrates remarkably consistent performance across all meteorological seasons. Spring emerges as the peak production period, generating 6.37 kWh per day for each kilowatt of installed solar capacity. Summer follows closely with 6.29 kWh/day per kW, while autumn and winter show only modest decreases to 5.92 and 5.88 kWh/day per kW respectively. This minimal seasonal variation of less than 0.5 kWh difference between the highest and lowest producing seasons makes Caldazinha an ideal location for solar installations. The consistently high output means solar systems will provide reliable energy generation throughout the entire year, without the significant winter drops experienced in higher latitude locations.

Optimal Panel Configuration

For maximum year-round solar production at Caldazinha, Goiás, fixed solar panels should be tilted at 17 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 Considerations

Several local factors could potentially impact solar energy production in Caldazinha and require careful consideration during installation planning. The tropical climate brings distinct wet and dry seasons, with the wet season potentially creating challenges for solar installations. Heavy rainfall and frequent thunderstorms during wet periods can reduce solar irradiance and create maintenance issues. Additionally, high humidity levels throughout much of the year may contribute to faster degradation of solar equipment and electrical connections. Dust accumulation presents another significant concern, particularly during drier periods when airborne particles can settle on solar panels and reduce their efficiency. The tropical environment also supports abundant vegetation growth, which could create shading issues if not properly managed during site selection and ongoing maintenance.

Preventative Measures for Optimal Performance

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

• Install panels with adequate drainage systems and slight tilting to allow rainwater to naturally clean panel surfaces
• Use corrosion-resistant mounting hardware and electrical components rated for high-humidity tropical environments
• Implement regular cleaning schedules, particularly during dry seasons when dust accumulation is highest
• Design installations with proper spacing between panel rows to minimize shading and allow for maintenance access
• Select vegetation management strategies during site preparation to prevent future shading from plant growth

Despite these considerations, the consistently high solar output throughout all seasons makes Caldazinha an exceptionally favorable location for solar energy systems. With proper installation techniques and regular maintenance, solar installations at this location can achieve excellent year-round performance and provide reliable renewable energy generation.

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 Caldazinha

Seasonal solar PV output for Latitude: -16.7494, Longitude: -49.0009 (Caldazinha, 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 17° North in Caldazinha, Brazil

To maximize your solar PV system's energy output in Caldazinha, Brazil (Lat/Long -16.7494, -49.0009) throughout the year, you should tilt your panels at an angle of 17° 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 Caldazinha, 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 Caldazinha, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 17° 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 Caldazinha, 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 Caldazinha, 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 Caldazinha, Brazil

Topographical Features of the Caldazinha Region

Caldazinha sits within the Brazilian Cerrado, a vast tropical savanna ecoregion that dominates much of central Brazil. The landscape around this location in Goiás state is characterized by gently rolling hills and broad plateaus that are typical of the Brazilian Central Plateau. The terrain features relatively modest elevation changes, with the area sitting at approximately 1,000 meters above sea level on what geographers call the Planalto Central.

The topography consists primarily of undulating plains with occasional low ridges and shallow valleys carved by seasonal watercourses. These gentle slopes rarely exceed gradients that would pose significant challenges for large-scale development projects. The region's geological foundation is predominantly composed of ancient crystalline rocks overlaid with lateritic soils, creating a stable base that can support substantial infrastructure.

Vegetation in the area transitions between typical Cerrado grasslands dotted with scattered trees and patches of gallery forest along waterways. Much of the original landscape has been modified for agricultural use, particularly cattle ranching and crop cultivation, which has created extensive areas of relatively flat, cleared land.

Optimal Areas for Large-Scale Solar Development

The most suitable locations for extensive solar photovoltaic installations would be the broad, gently sloping plateaus that extend northwest and southeast of Caldazinha. These areas offer several advantages including minimal topographical obstacles, reduced grading requirements, and existing access routes developed for agricultural purposes. The relatively flat terrain minimizes the need for extensive earthwork and allows for efficient panel arrangement with optimal spacing.

Areas with south-facing slopes of less than five degrees would be particularly advantageous, as they can maximize solar exposure while maintaining construction feasibility. The elevated plateau regions provide good drainage characteristics, reducing concerns about flooding during the rainy season while offering natural wind circulation that can help maintain optimal panel temperatures.

Previously cleared agricultural lands present the most immediately viable sites, as they already lack significant vegetation and often have established road access. These areas typically feature compacted soils suitable for foundation work and minimal environmental restoration requirements. The extensive cattle pastures surrounding the settlement offer particularly promising opportunities due to their flat profiles and existing infrastructure connections.

The proximity to existing electrical transmission infrastructure, which serves the agricultural operations throughout the region, provides additional advantages for grid connection. Areas within reasonable distance of these power lines would significantly reduce the infrastructure investment required for large-scale solar development projects.

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!

Citation Guide

Article Details for Citation

Tell Us About Your Work

We love seeing how our research helps others! If you've cited this article in your work, we'd be delighted to hear about it. Drop us a line via our Contact Us page or on X, to share where you've used our information - we may feature a link to your work on our site. This helps create a network of valuable resources for others in the solar energy community and helps us understand how our research is contributing to the field. Plus, we occasionally highlight exceptional works that reference our research on our social media channels.

Feeling generous?

Share this with your friends!

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.