Tanque Novo, Bahia, Brazil represents an excellent location for year-round solar photovoltaic energy generation. Located in the tropical region at coordinates -13.5836, -42.5431, 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 Potential
The solar energy output data for Tanque Novo demonstrates remarkably consistent performance across all seasons. Spring emerges as the most productive season, generating 6.88 kWh per day per kW of installed solar capacity. Summer follows closely with 6.55 kWh/day per kW, while autumn maintains strong output at 6.49 kWh/day per kW. Even winter, typically the lowest production season, still delivers a respectable 6.11 kWh/day per kW. This consistency makes Tanque Novo particularly attractive for solar installations, as the variation between the best and worst performing seasons is only about 12%. Such stability allows for more predictable energy planning and reduces the need for extensive backup systems.Optimal Panel Configuration
For fixed solar panel installations at this location, the ideal tilt angle to maximize total year-round production is 13 degrees facing north. This angle has been calculated by analyzing daily solar elevation angles throughout the year, determining optimal panel positioning, and weighting these angles according to daily photovoltaic potential using comprehensive solar irradiance data.Environmental and Weather Challenges
Several local factors could potentially impact solar energy production in Tanque Novo, Bahia, though the location remains highly suitable overall:- Seasonal rainfall patterns: The wet season brings increased cloud cover and precipitation that can reduce solar irradiance
- Dust and particulate matter: Brazil's interior regions often experience dust accumulation, particularly during dry periods
- High humidity levels: Tropical climates can lead to moisture-related issues with electrical components
- Intense solar radiation: While beneficial for energy production, extreme UV levels can accelerate equipment degradation
Preventative Measures for Optimal Performance
Several strategies can help maximize solar energy production despite these challenges. Regular panel cleaning schedules become essential, particularly during dusty dry seasons and after heavy rainfall periods. Installing panels with adequate ventilation spacing helps combat humidity-related issues and prevents overheating. Choosing solar equipment specifically rated for tropical conditions ensures better longevity and performance. This includes panels with enhanced UV resistance and electrical components designed to withstand high humidity environments. Implementing proper drainage systems around solar installations prevents water accumulation during heavy rains. Additionally, using anti-reflective coatings and self-cleaning panel technologies can help maintain optimal light transmission throughout varying weather conditions. The consistently high solar output across all seasons makes Tanque Novo an ideal location for solar energy generation, with spring and summer offering peak performance periods. With appropriate installation practices and maintenance routines, solar installations in this location can achieve excellent year-round energy production.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 Tanque Novo
Seasonal solar PV output for Latitude: -13.5836, Longitude: -42.5431 (Tanque Novo, 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 13° North in Tanque Novo, Brazil
To maximize your solar PV system's energy output in Tanque Novo, Brazil (Lat/Long -13.5836, -42.5431) throughout the year, you should tilt your panels at an angle of 13° 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 Tanque Novo, 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 Tanque Novo, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 13° 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 | 19° 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 Tanque Novo, 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 Tanque Novo, 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 Tanque Novo, Brazil
Topographical Features of the Tanque Novo Region
The landscape around Tanque Novo in Bahia state presents a characteristic profile of Brazil's semi-arid interior, situated within the Caatinga biome. This municipality sits at an elevation of approximately 400 to 500 meters above sea level, positioned on gently rolling terrain that forms part of the broader Brazilian Highlands. The topography consists primarily of undulating plains interspersed with low hills and occasional mesa-like formations that rise modestly above the surrounding countryside. The region experiences a relatively flat to gently sloping terrain, with gradual elevation changes rather than dramatic peaks or valleys. Small seasonal watercourses cut shallow channels through the landscape, creating subtle depressions that collect rainfall during the wet season. These drainage patterns have carved gentle contours into the terrain over geological time, resulting in a landscape of modest relief that rarely exceeds 100 meters of elevation difference within any given area. Rock outcrops and exposed bedrock surfaces appear intermittently across the region, consisting mainly of crystalline basement rocks typical of the Brazilian Shield. These geological formations create patches of harder, more resistant terrain that stand slightly elevated above the surrounding softer sedimentary areas. The soil cover varies from thin rocky soils on elevated areas to deeper alluvial deposits in the lower-lying zones near seasonal water channels.Optimal Areas for Large-Scale Solar Development
The gently rolling topography around Tanque Novo offers several advantages for large-scale solar photovoltaic installations. The most suitable areas would be the broad, relatively flat plateaus and gentle slopes that characterize much of the regional landscape. These areas provide stable foundations for solar arrays while minimizing the need for extensive site preparation or grading work. The elevated plains to the north and east of the municipality center present particularly favorable conditions for solar development. These areas combine relatively level terrain with good drainage characteristics, reducing concerns about water accumulation during the rainy season. The stable geological foundation provided by the underlying crystalline rocks offers excellent support for large solar installations without significant settlement concerns. Areas with south-facing gentle slopes would be especially advantageous, as they naturally optimize panel orientation for maximum solar exposure in this southern hemisphere location. The modest elevation changes across the region mean that shadowing between panel arrays would be minimal, allowing for efficient use of available land area. The seasonal drainage channels and their immediate surroundings should generally be avoided for solar installations, both to prevent flooding issues and to preserve natural water flow patterns. However, the areas slightly elevated above these drainage zones often provide ideal conditions, combining good drainage with level terrain suitable for construction access. Transportation access represents another crucial factor in site selection. Areas near existing roads or with potential for road development across the relatively flat terrain would be most practical for large-scale solar projects. The gentle topography of the region makes road construction and maintenance relatively straightforward compared to more mountainous areas. The absence of significant vegetation due to the semi-arid climate means that land clearing requirements would be minimal in most areas, though environmental considerations regarding the native Caatinga ecosystem would need careful evaluation. The stable, dry conditions and moderate elevation provide an ideal environment for solar panel performance and maintenance accessibility.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: Monday 21st of July 2025
Last Updated: Thursday 7th of August 2025
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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.




