Diamante, Paraíba, Brazil represents an excellent location for year-round solar energy generation, with its tropical climate providing consistent sunlight throughout most of the year where seasons are characterized more by wet and dry periods than traditional temperature variations.
Solar Energy Production Potential
The solar energy output data for Diamante shows remarkably strong performance across all seasons. Winter produces 6.03 kWh per day per kW of installed solar capacity, while autumn generates 6.13 kWh/day per kW. Summer performance reaches 6.28 kWh/day per kW, but spring stands out as the peak season with an impressive 7.43 kWh/day per kW of installed capacity. This seasonal pattern makes spring the ideal time for maximum solar generation at this location, likely due to optimal sun angles and favorable weather conditions during this period. The relatively modest variation between seasons demonstrates the location's reliability for consistent solar energy production throughout the year.Optimal Panel Configuration
For fixed panel installations at Diamante, Paraíba, the ideal tilt angle to maximize total year-round solar production is 7 degrees facing North. This shallow angle reflects the location's proximity to the equator and helps optimize energy capture across all seasons by accounting for the sun's path throughout the year and weighting for solar irradiance potential.Environmental and Weather Challenges
Several factors could potentially impact solar energy production in Diamante's tropical environment:- Heavy rainfall during wet seasons can reduce solar irradiance and create temporary drops in energy generation
- High humidity levels typical of tropical climates may lead to moisture-related equipment issues over time
- Dust and debris accumulation during dry periods can coat panels and reduce their efficiency
- Intense tropical storms pose risks to solar installations through high winds and hail
Preventative Measures for Optimal Performance
To address these challenges and ensure maximum energy production, several installation strategies should be considered:- Implement robust drainage systems around solar installations to prevent water pooling and ensure proper runoff during heavy rains
- Use high-quality weatherproof mounting systems designed to withstand tropical storm conditions and high humidity
- Install panels with adequate spacing to promote air circulation and reduce moisture buildup
- Establish regular cleaning schedules to remove dust, debris, and any organic matter that may accumulate on panel surfaces
- Select solar equipment rated for tropical conditions with appropriate IP ratings for moisture resistance
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 Diamante
Seasonal solar PV output for Latitude: -7.41, Longitude: -38.3087 (Diamante, 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 7° North in Diamante, Brazil
To maximize your solar PV system's energy output in Diamante, Brazil (Lat/Long -7.41, -38.3087) throughout the year, you should tilt your panels at an angle of 7° 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 Diamante, 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 Diamante, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 7° North tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 8° South in Summer | 13° North in Autumn | 23° North in Winter | 1° 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 Diamante, 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 Diamante, Brazil.
Our calculation method
- Solar Position:
We determine the Sun's position on the Winter solstice using the location's latitude and solar declination. - Shadow Projection:
We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle. - 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 Diamante, Brazil
Topographical Features of the Diamante Region
Diamante is located in the interior of Paraíba state in northeastern Brazil, situated within the semi-arid region known as the Caatinga. The topography around Diamante is characterized by gently rolling hills and elevated plateaus that form part of the Borborema Plateau, a geological formation that extends across much of northeastern Brazil. The terrain features moderate elevation changes with altitudes typically ranging between 400 to 600 meters above sea level.
The landscape is dominated by crystalline rock formations dating back to the Precambrian era, creating a relatively stable geological foundation. These ancient rock structures have been weathered over millennia, resulting in undulating terrain with broad valleys and rounded hilltops. The region experiences typical semi-arid morphology with intermittent streams and seasonal water courses that remain dry for much of the year.
Vegetation in the area consists primarily of Caatinga scrubland, featuring drought-resistant trees, shrubs, and cacti adapted to the region's climate conditions. This sparse vegetation coverage means that large areas of land have minimal shading obstacles, which is beneficial for solar energy applications.
Optimal Areas for Large-Scale Solar Development
The elevated plateaus and gently sloping hillsides surrounding Diamante present excellent opportunities for large-scale solar photovoltaic installations. The most suitable areas are the broad, relatively flat expanses found on the higher elevations of the Borborema Plateau, where consistent terrain gradients minimize the need for extensive land preparation and grading work.
Areas with southern and southeastern exposures on the plateau surfaces would be particularly well-suited for solar arrays, as these orientations maximize exposure to direct sunlight throughout the day. The elevated position of these locations also provides natural drainage advantages and reduces the risk of flooding during occasional heavy rainfall events.
The sparse population density in the rural areas surrounding Diamante means that large tracts of land are potentially available for solar development without significant residential displacement concerns. The relatively stable geological foundation provided by the crystalline bedrock offers excellent support for mounting systems and reduces concerns about ground settlement that might affect solar panel alignment over time.
Transportation infrastructure accessibility should also be considered when selecting sites, with areas closer to existing roads and transmission lines offering practical advantages for construction and maintenance activities. The region's minimal tree coverage eliminates the need for extensive clearing operations, reducing both environmental impact and development costs for potential solar installations.
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
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Wednesday 30th of July 2025
Last Updated: Friday 8th of August 2025
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.




