Barrocas, Bahia, Brazil presents an excellent location for year-round solar PV energy generation. Located in the tropical region at coordinates -12.0167, -45.0333, this area benefits from consistent sunlight throughout most of the year, with seasonal variations characterized more by wet and dry periods rather than traditional temperature-based seasons.

Solar Energy Performance Throughout the Year

The solar energy output at Barrocas shows impressive consistency across all seasons, with performance actually improving during the cooler months. Summer generates 5.87 kWh per day per kW of installed solar capacity, while autumn sees a slight increase to 6.11 kWh/day. Winter performance peaks at 6.38 kWh/day, and spring delivers the highest output at 6.51 kWh/day per kW installed. This pattern is typical for tropical locations, where the cooler, drier months often provide optimal conditions for solar panel efficiency. Spring and winter emerge as the ideal times for solar generation at this location, offering approximately 11% more energy production compared to summer months.

Optimal Panel Installation

For maximum year-round energy production, solar panels should be installed at a fixed tilt angle of 13 degrees facing North. This angle has been calculated to optimize total annual solar output by accounting for the sun's path throughout the year and the location's specific latitude.

Environmental and Weather Challenges

Several local factors could potentially impact solar production at Barrocas:

• Heavy rainfall during wet season: Extended periods of cloud cover and precipitation can significantly reduce solar irradiance
• High humidity levels: Tropical humidity can lead to moisture-related issues and reduced panel efficiency
• Dust accumulation: Dry season conditions may result in dust and debris settling on panel surfaces
• Intense UV exposure: Prolonged exposure to strong tropical sunlight can accelerate equipment degradation

Preventative Measures for Optimal Performance

To maximize energy production and system longevity, several installation strategies should be considered: Regular cleaning systems or easy access for manual cleaning will help maintain panel efficiency during dusty periods. Proper drainage and ventilation around panels will prevent moisture buildup and allow air circulation to keep panels cool. Selecting high-quality panels rated for tropical conditions with appropriate UV resistance will ensure long-term performance. Installing panels with adequate spacing and ventilation underneath helps prevent overheating, which can reduce efficiency even in optimal sunlight conditions. Robust mounting systems designed to withstand heavy rainfall and potential storm conditions are essential. Additionally, implementing monitoring systems can help identify performance issues quickly, allowing for prompt maintenance during weather-related disruptions. Despite these considerations, Barrocas remains a highly favorable location for solar energy generation, with the potential challenges being manageable through proper installation and maintenance 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 Barrocas

Seasonal solar PV output for Latitude: -12.0167, Longitude: -45.0333 (Barrocas, 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 Barrocas, Brazil

To maximize your solar PV system's energy output in Barrocas, Brazil (Lat/Long -12.0167, -45.0333) 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 Barrocas, 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 Barrocas, 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
4° South in Summer	18° North in Autumn	27° North in Winter	7° 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 Barrocas, 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 Barrocas, 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 Barrocas, Brazil

Topographical Overview of Barrocas, Brazil

The region around Barrocas in Brazil sits within the distinctive landscape of the western Bahia state, characterized by the expansive Cerrado biome. This area forms part of the Brazilian Highlands, featuring a predominantly elevated plateau that ranges from gently rolling terrain to more pronounced undulating hills. The topography consists mainly of broad, open plateaus interspersed with shallow valleys and occasional escarpments that create natural boundaries between different elevation zones. The immediate vicinity of Barrocas displays relatively moderate relief, with elevations typically ranging between 400 and 800 meters above sea level. The landscape is dominated by extensive flat to gently sloping surfaces that have been shaped by millions of years of erosion, creating wide interfluves separated by broad, shallow drainage basins. These plateau surfaces are occasionally interrupted by low ridges and gentle hills that rise gradually from the surrounding terrain.

Drainage Patterns and Water Features

The drainage network in this region follows a dendritic pattern, with numerous seasonal streams and tributaries flowing toward larger river systems. Many of these waterways are intermittent, flowing primarily during the wet season and remaining dry or reduced to isolated pools during drier periods. The valleys carved by these water courses tend to be broad and shallow rather than deeply incised, contributing to the overall gentle nature of the local topography. Small reservoirs and artificial lakes dot the landscape, created both for agricultural irrigation and water storage purposes. These water features, while relatively modest in size, create localized variations in the terrain and influence the immediate surrounding topography through their construction and maintenance requirements.

Soil and Surface Characteristics

The surface geology consists primarily of ancient crystalline rocks overlain by sedimentary formations and weathered materials that have developed into characteristic Cerrado soils. These soils are typically well-drained and relatively stable, though they can vary in depth and composition across different topographical positions. The flatter areas tend to have deeper soil profiles, while slopes and elevated areas may exhibit shallower soils with occasional rock outcrops. The vegetation patterns closely follow the topographical variations, with gallery forests occupying the moister valley bottoms and typical Cerrado savanna covering the upland areas. This natural vegetation distribution reflects both the topographical influences on water availability and the underlying soil characteristics.

Optimal Areas for Large-Scale Solar Development

The most suitable locations for large-scale solar photovoltaic installations in this region would be the extensive flat to gently sloping plateau surfaces that characterize much of the area surrounding Barrocas. These elevated plains offer several topographical advantages, including minimal grading requirements, excellent natural drainage, and reduced risk of flooding during seasonal rains. The broad interfluves between the major drainage systems present particularly attractive development opportunities, as they combine favorable slopes with substantial contiguous areas suitable for large installations. These locations typically feature gentle gradients that facilitate both construction access and optimal panel orientation while maintaining natural drainage patterns. Areas with southern-facing slopes of moderate gradient would be especially well-suited for solar development, as they can take advantage of optimal sun exposure angles while still maintaining manageable construction and maintenance access. The stable geological conditions throughout most of the region provide solid foundations for solar infrastructure with minimal risk of ground instability or excessive settling. The proximity to existing agricultural areas and rural infrastructure also makes certain plateau locations more practical for solar development, as they often have better access to transportation networks and electrical grid connections. Areas that are currently used for extensive cattle ranching or less intensive agriculture could potentially be converted to solar use with relatively minimal environmental disruption, particularly where the topography is most favorable for panel installation and maintenance access.

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.