Mucuri, Brazil represents a highly favorable location for year-round solar photovoltaic energy generation. Positioned in the tropical zone at coordinates -18.0871, -39.5548, this coastal city in Bahia state benefits from Brazil's consistent equatorial sunlight patterns throughout the year.
Solar Energy Production Performance
The solar energy output data for Mucuri demonstrates strong year-round potential, with seasonal variations that follow typical tropical patterns. Summer delivers the highest production at 6.47 kWh per day per kW of installed solar capacity, making it the peak generation season. Spring follows closely with 5.60 kWh/day per kW, while autumn produces 5.82 kWh/day per kW. Winter represents the lowest production period at 4.68 kWh/day per kW, though this figure still indicates substantial solar potential even during the least favorable season. The relatively modest seasonal variation - with winter production at about 72% of summer levels - demonstrates the location's reliability for consistent solar energy generation throughout the year. For optimal performance, fixed solar panel installations at this location should be tilted at 17 degrees toward the north. This angle maximizes total year-round energy production by accounting for the sun's path throughout the seasons and the weighted solar irradiance potential at this specific latitude.Environmental and Weather Challenges
Several significant environmental factors could impact solar energy production in Mucuri and require careful consideration during installation planning. The coastal tropical climate brings high humidity levels year-round, which can accelerate corrosion of metal components and electrical connections. Salt air from the nearby Atlantic Ocean compounds this challenge, potentially causing faster degradation of panels, mounting hardware, and inverter systems. Regular maintenance schedules become crucial, with components requiring more frequent inspection and cleaning than installations in drier, inland locations. Tropical rainfall patterns present another consideration. While the dry season offers optimal conditions, the wet season can bring intense precipitation that may temporarily reduce energy output and create potential drainage issues around ground-mounted installations. Heavy rains can also leave mineral deposits and organic matter on panel surfaces that reduce efficiency if not properly managed.Preventative Installation Measures
Several proven strategies can help maximize solar energy production despite these environmental challenges:- Use marine-grade aluminum or stainless steel mounting systems specifically designed for coastal environments
- Apply protective coatings to all metal components and ensure proper grounding systems
- Install panels with adequate spacing for air circulation to reduce moisture buildup
- Design drainage systems that direct water away from ground-mounted installations
- Select panels with anti-soiling coatings and self-cleaning properties where possible
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 Mucuri
Seasonal solar PV output for Latitude: -18.0871, Longitude: -39.5548 (Mucuri, 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 Mucuri, Brazil
To maximize your solar PV system's energy output in Mucuri, Brazil (Lat/Long -18.0871, -39.5548) 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 Mucuri, 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 Mucuri, 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 |
|---|---|---|---|
| 2° North in Summer | 23° North in Autumn | 34° North in Winter | 12° 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 Mucuri, 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 Mucuri, 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 Mucuri, Brazil
Topographical Features Around Mucuri
Mucuri is situated in the southeastern region of Bahia state, Brazil, positioned along the Atlantic coastline where the landscape transitions from coastal plains to rolling inland terrain. The immediate area around the city features relatively flat to gently undulating topography, with elevations typically ranging from sea level at the coast to modest hills reaching approximately 200-300 meters inland. The terrain is characterized by sedimentary formations and coastal terraces that extend westward from the Atlantic Ocean.
The coastal zone displays typical features of Brazil's eastern seaboard, including sandy beaches, dune systems, and low-lying areas that occasionally experience seasonal flooding. Moving inland from Mucuri, the landscape gradually rises through a series of gentle slopes and plateaus. The region's geology consists primarily of sedimentary rocks and unconsolidated deposits, creating a relatively stable foundation with minimal steep gradients or dramatic elevation changes.
The drainage pattern around Mucuri is dominated by the Mucuri River system, which flows eastward toward the Atlantic Ocean. This river valley creates some of the more pronounced topographical features in the area, with the watercourse cutting through the landscape and creating modest valleys and floodplains. The surrounding watershed includes numerous smaller tributaries that have carved gentle valleys into the terrain over geological time.
Optimal Areas for Large-Scale Solar Development
The most suitable locations for large-scale solar photovoltaic installations around Mucuri would be the elevated plateaus and gently sloping areas located 10-30 kilometers inland from the coast. These areas offer several advantages including stable ground conditions, minimal risk of coastal flooding, and sufficient elevation to avoid the immediate effects of sea spray and salt corrosion that can impact equipment performance near the ocean.
The rolling hills and plateaus to the west and northwest of Mucuri present particularly favorable conditions for solar development. These areas typically feature gradual south-facing slopes that would optimize solar panel orientation for maximum energy capture throughout the day. The terrain in these locations is generally well-drained, reducing concerns about equipment damage from standing water during the rainy season.
Areas with elevations between 100-250 meters above sea level would be ideal, as they provide good drainage while remaining accessible for construction and maintenance activities. The relatively open landscape in these zones, often characterized by pasturelands and agricultural areas, would require minimal clearing and grading compared to more densely forested regions further inland.
The coastal plain immediately adjacent to Mucuri would be less suitable for large-scale solar installations due to the proximity to salt air, potential for storm surge impacts, and the presence of environmentally sensitive coastal ecosystems. Additionally, areas within the immediate Mucuri River floodplain should be avoided due to seasonal inundation risks and the importance of maintaining natural flood control systems.
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: Tuesday 1st of July 2025
Last Updated: Wednesday 6th 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.




