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Graph of hourly avg kWh electricity output per kW of Solar PV installed in Serra Do Mel, Brazil (by season)

Solar Energy Potential in Serra do Mel, Brazil

Serra do Mel, located in northeastern Brazil, offers excellent conditions for solar energy generation throughout the year. This tropical location benefits from consistent sunlight patterns that make it highly suitable for photovoltaic (PV) installations. The seasonal electricity output shows remarkable consistency across the year. During spring, the location reaches its peak production potential with an impressive 7.43 kWh per day for each kilowatt of installed capacity. Summer follows with 6.59 kWh/day, while autumn and winter produce 6.44 kWh/day and 6.24 kWh/day respectively. The minimal variation between seasons demonstrates Serra do Mel's reliable solar resource. For maximum energy harvest, fixed solar panels should be tilted at 5 degrees facing North. This specific angle has been carefully calculated to optimize year-round solar collection based on Serra do Mel's geographical position and the sun's seasonal path across the sky.

Potential Challenges and Mitigation Strategies

Despite the favorable conditions, several environmental factors could affect solar production in Serra do Mel:
  • Dust and sand accumulation: The region's semi-arid climate can lead to dust buildup on panels, reducing efficiency. Regular cleaning schedules and possibly automated cleaning systems are recommended.
  • Seasonal rainfall: During wet seasons, cloud cover may temporarily reduce output. Installing slightly more capacity than minimum requirements can help compensate for these periods.
  • High temperatures: Excessive heat can reduce PV panel efficiency. Ensuring adequate airflow beneath panels and using heat-resistant components can mitigate this issue.
Installing monitoring systems to track performance variations can help identify and address these challenges promptly. Additionally, using quality components designed for tropical conditions will enhance system durability and maintain consistent production levels throughout the year. The minimal seasonal variation in output makes Serra do Mel an ideal location for solar energy investments, with relatively predictable returns and reliable generation throughout the calendar 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 Serra Do Mel

Seasonal solar PV output for Latitude: -5.1192, Longitude: -37.0332 (Serra Do Mel, 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:

Summer
Average 6.59kWh/day in Summer.
Autumn
Average 6.44kWh/day in Autumn.
Winter
Average 6.24kWh/day in Winter.
Spring
Average 7.43kWh/day in Spring.

 

Ideally tilt fixed solar panels 5° North in Serra Do Mel, Brazil

To maximize your solar PV system's energy output in Serra Do Mel, Brazil (Lat/Long -5.1192, -37.0332) throughout the year, you should tilt your panels at an angle of 5° 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.

The sun
At Latitude: -5.1192, Longitude: -37.0332, the ideal angle to tilt panels is 5° North

Seasonally adjusted solar panel tilt angles for Serra Do Mel, 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 Serra Do Mel, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 5° North tilt angle throughout the year.

Overall Best Summer Angle Overall Best Autumn Angle Overall Best Winter Angle Overall Best Spring Angle
11° South in Summer 11° North in Autumn 21° North in Winter 1° South in Spring

Assuming you can modify the tilt angle of your solar PV panels throughout the year, you can optimize your solar generation in Serra Do Mel, Brazil as follows: In Summer, set the angle of your panels to 11° facing South. In Autumn, tilt panels to 11° facing North for maximum generation. During Winter, adjust your solar panels to a 21° angle towards the North for optimal energy production. Lastly, in Spring, position your panels at a 1° angle facing South to capture the most solar energy in Serra Do Mel, Brazil.

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 Serra Do Mel, 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 Serra Do Mel, 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.






Please enter information above to calculate panel spacing.

Topography for solar PV around Serra Do Mel, Brazil

Topographical Features of Serra do Mel Region

Serra do Mel sits in the interior of Rio Grande do Norte state in northeastern Brazil, positioned within a landscape characterized by gently rolling hills and elevated plateaus typical of the Brazilian caatinga region. The terrain around this municipality features moderate elevation changes, with the area sitting approximately 200 to 400 meters above sea level. The topography consists primarily of undulating plains interspersed with low ridges and shallow valleys, creating a varied but generally accessible landscape.

The region's geological foundation is built upon ancient crystalline rock formations, which have been weathered over millennia to create relatively stable ground conditions. This underlying geology contributes to well-drained soils and minimal risk of significant ground subsidence, factors that are beneficial for large infrastructure projects. The terrain slopes are generally moderate, rarely exceeding gradients that would pose significant engineering challenges for development.

Natural vegetation in the area is predominantly caatinga scrubland, consisting of drought-resistant shrubs and small trees adapted to the semi-arid climate. This sparse vegetation cover means that large areas of relatively flat or gently sloping land are readily visible and accessible. The landscape is punctuated by seasonal watercourses that typically flow only during the rainy season, leaving dry creek beds and shallow depressions during much of the year.

Optimal Areas for Large-Scale Solar Development

The most suitable locations for extensive solar photovoltaic installations around Serra do Mel would be the elevated plateau areas to the north and east of the municipality center. These zones offer several advantages including relatively flat terrain with gentle south-facing slopes that would optimize panel positioning. The elevation provides natural drainage while maintaining accessibility for construction and maintenance vehicles.

The western approaches to Serra do Mel also present excellent opportunities, where the landscape opens into broader plains with minimal vegetation and few natural obstacles. These areas feature stable, well-drained soils and sufficient space for large solar arrays without significant grading or earthwork requirements. The terrain in these zones is particularly well-suited to accommodate the infrastructure needs of utility-scale solar facilities, including access roads, transmission connections, and maintenance facilities.

Areas immediately surrounding existing transportation corridors would be particularly advantageous for solar development, as they already benefit from established access routes and are likely to have proximity to electrical transmission infrastructure. The relatively sparse population density in the rural areas surrounding Serra do Mel means that large tracts of land could potentially be developed without significant displacement or land use conflicts.

The southeastern quadrant of the region also shows promise, where the topography transitions into broader valleys with consistent exposure and minimal shading from natural features. These locations would allow for efficient panel layout designs and optimal spacing between solar array rows, maximizing the productive use of available land area while maintaining the access needed for ongoing operations and maintenance activities.

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

Article: Solar PV Analysis of Serra Do Mel, Brazil
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

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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.

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