Murici, Alagoas, Brazil presents an excellent location for year-round solar photovoltaic energy generation. Located in the tropical region at coordinates -9.2983, -35.9, this area benefits from the consistent sunlight typical of tropical zones, where seasonal variations are primarily defined by wet and dry periods rather than significant changes in sun availability.
Solar Energy Production Throughout the Year
The solar energy output at Murici demonstrates strong performance across all seasons. Spring emerges as the most productive period, generating 7.27 kWh per day for each kilowatt of installed solar capacity. Summer follows closely with 7.02 kWh/day per kW, making these two seasons the optimal times for solar energy generation at this location. Autumn maintains respectable production levels at 6.10 kWh/day per kW, while winter shows the lowest output at 5.28 kWh/day per kW. However, even the winter production remains quite substantial, highlighting the year-round viability of solar installations in this tropical location.Optimal Panel Configuration
For maximum energy production throughout the year, solar panels at Murici should be installed at a fixed tilt angle of 8 degrees facing north. This relatively shallow angle is calculated to optimize total annual solar output by accounting for the sun's path throughout the year and the location's proximity to the equator.Environmental and Weather Considerations
Several local factors could potentially impact solar energy production at this tropical location:- Tropical rainfall and humidity: The wet season brings heavy rains and high humidity levels that can reduce solar panel efficiency and create water-related maintenance issues
- Dust and debris accumulation: Dry periods may lead to dust buildup on panel surfaces, reducing light transmission and energy output
- Vegetation growth: The tropical climate promotes rapid plant growth that could create shading issues if not properly managed
- Corrosion from coastal proximity: Depending on distance from the Atlantic coast, salt air could accelerate corrosion of metal components
Preventative Measures for Enhanced Performance
To maximize solar energy production despite these environmental challenges, several installation strategies should be implemented: Regular cleaning schedules become essential, particularly during dry periods when dust accumulation is heaviest and after heavy rains that may leave residue on panels. Installing panels with adequate drainage systems helps prevent water pooling and reduces the risk of electrical issues during the wet season. Proper spacing and mounting height ensure adequate airflow around panels, which helps combat the efficiency-reducing effects of high humidity and heat. Using corrosion-resistant materials and protective coatings on all metal components extends system lifespan in the tropical environment. Vegetation management around the installation site prevents shading issues, while regular inspection schedules help identify and address any environmental damage before it significantly impacts energy production. These proactive measures help ensure that Murici's excellent solar potential translates into consistent, reliable energy generation throughout the year.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 Murici
Seasonal solar PV output for Latitude: -9.2983, Longitude: -35.9 (Murici, 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 8° North in Murici, Brazil
To maximize your solar PV system's energy output in Murici, Brazil (Lat/Long -9.2983, -35.9) throughout the year, you should tilt your panels at an angle of 8° 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 Murici, 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 Murici, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 8° North tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 6° South in Summer | 15° North in Autumn | 25° North in Winter | 3° 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 Murici, 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 Murici, 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 Murici, Brazil
Topographical Features Around Murici
Murici is situated in the state of Alagoas in northeastern Brazil, positioned within the Atlantic Forest region where the coastal lowlands meet the beginning of the Brazilian Highlands. The immediate area around Murici features gently rolling hills and undulating terrain typical of the transition zone between the coastal plains and the interior plateau. Elevations in the vicinity range from approximately 200 to 400 meters above sea level, creating a landscape of moderate relief with numerous small valleys and ridgelines.
The topography is characterized by weathered crystalline rocks that form part of the Brazilian Shield, resulting in relatively stable geological conditions. The terrain shows evidence of extensive erosion over geological time, creating rounded hilltops and gentle slopes rather than steep escarpments. Small streams and seasonal watercourses have carved shallow valleys throughout the region, contributing to the undulating character of the landscape.
Vegetation in the area consists primarily of Atlantic Forest remnants mixed with areas that have been converted to agricultural use and pastureland. The natural forest cover has been significantly reduced, leaving many areas with secondary growth or cleared land. The soil composition varies from clay-rich areas in the valleys to more sandy compositions on the higher elevations and slopes.
Optimal Areas for Large-Scale Solar Development
The most suitable locations for large-scale solar photovoltaic installations around Murici would be the elevated plateaus and gentle slopes that face south or have minimal shading from surrounding topographical features. These areas typically occur on the broader hilltops and ridge systems where the terrain is relatively flat and stable, providing good foundation conditions for solar panel arrays.
Areas with slopes of less than 10 degrees would be particularly advantageous, as they minimize the need for extensive grading and earthwork while still allowing for proper drainage. The elevated positions also tend to have better air circulation, which can help maintain optimal operating temperatures for solar equipment. Many of these suitable areas are currently used for cattle grazing or have been cleared of native vegetation, making them potentially available for development with fewer environmental constraints.
The region's geological stability is beneficial for large-scale solar installations, as the underlying crystalline bedrock provides solid foundations and reduces concerns about ground subsidence or instability. Areas that were previously cleared for agriculture or pasture would be preferable to locations with remaining native forest cover, both from environmental and practical development perspectives.
Access to existing road networks and proximity to electrical transmission infrastructure would also favor certain locations over others. The flatter areas closer to the main transportation corridors and existing power lines would offer logistical advantages for construction and ongoing maintenance operations while reducing the overall project development costs.
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 30th of June 2025
Last Updated: Tuesday 5th 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.




