Milagres, Brazil represents an excellent location for year-round solar energy generation through photovoltaic systems. Located in the tropical region at coordinates -12.9559, -39.8178, this area benefits from consistent sunlight throughout most of the year, with seasonal variations characterized more by wet and dry periods rather than the dramatic temperature and daylight changes seen in temperate climates.

Seasonal Solar Performance

The solar energy output at Milagres shows strong performance across all seasons, with some notable seasonal variations. Spring emerges as the most productive season, generating 6.11 kWh per day for each kilowatt of installed solar capacity. Autumn follows closely with 6.01 kWh/day, while summer produces 5.90 kWh/day. Winter shows the lowest output at 4.75 kWh/day per kilowatt installed, though this still represents substantial energy generation compared to many locations worldwide. The optimal months for solar generation at this location span from September through May, encompassing spring, summer, and autumn. During these periods, the combination of favorable sun angles and clearer atmospheric conditions maximizes energy production. Even during the winter months, the tropical location ensures that solar output remains viable for consistent energy needs.

Optimal Panel Installation

For maximum year-round energy production at Milagres, solar panels should be installed at a fixed tilt angle of 12 degrees facing north. This angle has been calculated to optimize total annual solar output by accounting for the sun's varying elevation throughout the year, Earth's elliptical orbit, and local solar irradiance patterns.

Environmental and Weather Considerations

Several local factors could potentially impact solar energy production at this tropical location, though most can be effectively managed through proper installation practices. The wet season presents the most significant challenge, as increased cloud cover and frequent rainfall can reduce solar irradiance and temporarily decrease energy output. Heavy tropical rains, while beneficial for cleaning panels naturally, can also create periods of reduced generation that should be factored into energy planning. High humidity levels common in tropical climates may contribute to faster degradation of electrical components if not properly protected. Additionally, the consistently warm temperatures, while eliminating concerns about snow or ice, can slightly reduce panel efficiency compared to cooler conditions.

Preventative Installation Measures

To maximize solar energy production despite these environmental factors, several installation strategies prove highly effective:

• Install panels with adequate ventilation spacing beneath to promote air circulation and cooling
• Use marine-grade or tropical-rated electrical components and wiring designed to withstand high humidity
• Implement robust waterproofing and drainage systems to handle heavy tropical rainfall
• Design mounting systems to withstand potential strong winds during storm seasons
• Include monitoring systems to track performance and identify any weather-related issues quickly

Regular maintenance schedules should account for the tropical environment, with particular attention to keeping electrical connections dry and secure. The natural rainfall often helps keep panels clean, reducing one maintenance concern common in drier climates. Overall, Milagres offers favorable conditions for solar energy generation throughout the year, with environmental challenges that are well-understood and manageable through appropriate 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 Milagres, Bahia

Seasonal solar PV output for Latitude: -12.9559, Longitude: -39.8178 (Milagres, Bahia, 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 12° North in Milagres, Bahia, Brazil

To maximize your solar PV system's energy output in Milagres, Bahia, Brazil (Lat/Long -12.9559, -39.8178) throughout the year, you should tilt your panels at an angle of 12° 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 Milagres, Bahia, 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 Milagres, Bahia, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 12° 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	28° 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 Milagres, Bahia, 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 Milagres, Bahia, 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 Milagres, Bahia, Brazil

Topographical Features of the Milagres Region

Milagres is situated in the Recôncavo region of Bahia state in northeastern Brazil, positioned within a landscape characterized by gently rolling hills and coastal plains. The area sits at a modest elevation, forming part of the broader Atlantic coastal lowlands that extend inland from the Bay of All Saints. The terrain around Milagres features undulating topography with gradual slopes and occasional small valleys, creating a relatively accessible landscape for development projects.

The region exhibits typical characteristics of the Brazilian Atlantic Forest transition zone, where the landscape has been significantly modified by centuries of agricultural activity. Rolling hills dominate the immediate vicinity, with elevations rarely exceeding 200 meters above sea level. These hills are interspersed with flatter areas and gentle valleys that have historically been utilized for sugarcane cultivation and cattle grazing.

Water features in the area include several small streams and seasonal watercourses that drain toward the Paraguaçu River system to the west and smaller coastal rivers to the east. The presence of these waterways has created subtle variations in the landscape, with slightly lower-lying areas following the natural drainage patterns.

Optimal Areas for Large-Scale Solar Development

The most suitable locations for extensive solar photovoltaic installations would be found on the broader hilltops and elevated plateaus that characterize the region's higher ground. These areas offer several advantages including minimal shading from surrounding terrain, excellent exposure to prevailing weather patterns, and typically feature more stable soil conditions suitable for supporting large arrays of solar panels.

The gently sloping hillsides with southern and southeastern exposures present particularly favorable conditions, as they can be oriented to maximize solar collection while maintaining reasonable construction costs. Areas with slopes between 5 and 15 degrees are especially well-suited, as they provide natural drainage while avoiding the engineering challenges associated with steeper terrain.

Former agricultural lands on the broader valley floors and elevated plains would also serve as excellent candidates for solar development. These areas typically feature relatively level ground that has already been cleared and modified for human use, reducing environmental impact and site preparation costs. The existing agricultural infrastructure, including access roads and proximity to electrical transmission corridors, makes these locations particularly attractive for large-scale renewable energy projects.

Areas to the northwest and southwest of Milagres appear especially promising, where the topography opens up into broader, more expansive landscapes with fewer natural obstacles. These zones combine favorable terrain characteristics with good accessibility and proximity to existing infrastructure networks that could facilitate the connection of solar installations to the regional electrical grid.

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.