Formoso, Brazil represents an excellent location for year-round solar energy generation, benefiting from its tropical position where consistent sunlight is available throughout most of the year and seasonal variations are primarily distinguished by wet and dry periods rather than dramatic temperature changes.

Solar Energy Production Potential

The solar energy output data for Formoso demonstrates remarkably strong and consistent performance across all seasons. During summer, solar panels generate 5.34 kWh per day for each kW of installed capacity. This increases progressively through autumn (5.87 kWh/day per kW) and peaks during winter at 6.19 kWh/day per kW, before settling at 6.07 kWh/day per kW in spring. Winter emerges as the optimal season for solar generation at this location, followed closely by spring. This pattern is typical for locations in the Southern Hemisphere tropics, where winter months often provide clearer skies and optimal sun angles for energy production. For maximum year-round energy output, solar panels should be installed at a fixed tilt angle of 15 degrees facing north. This angle has been calculated to optimize total annual production by accounting for the sun's varying elevation throughout the year and weighting these angles according to actual solar irradiance potential.

Environmental and Weather Challenges

Several local factors in Formoso could potentially impact solar energy production, though the location's overall tropical climate remains highly favorable for solar installations. The most significant challenge stems from the tropical wet season, which typically brings increased cloud cover, frequent rainfall, and higher humidity levels. During these periods, solar panel efficiency can be temporarily reduced due to cloud interference and moisture accumulation on panel surfaces. Dust and debris accumulation presents another concern, particularly during drier periods when airborne particles can settle on solar panels and create a film that reduces light transmission. The tropical environment may also support faster vegetation growth, which could create shading issues if not properly managed.

Preventative Measures for Optimal Performance

Several installation strategies can help maximize solar energy production despite these environmental challenges:

• Install panels with adequate spacing and ventilation to promote air circulation and reduce moisture buildup
• Implement regular cleaning schedules, particularly important during and after the dry season to remove dust accumulation
• Design mounting systems that allow for proper drainage during heavy rainfall periods
• Establish vegetation management protocols around solar installations to prevent shading from growing plants
• Consider using anti-reflective coatings or self-cleaning panel surfaces to minimize the impact of dust and moisture

The consistent and robust energy output figures throughout all seasons indicate that Formoso's tropical location provides an ideal environment for solar energy generation. While environmental factors require attention during installation and maintenance planning, they do not significantly diminish the location's excellent solar potential when proper preventative measures are implemented.

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 Formoso, Goiás

Seasonal solar PV output for Latitude: -13.7059, Longitude: -48.8777 (Formoso, Goiás, 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 15° North in Formoso, Goiás, Brazil

To maximize your solar PV system's energy output in Formoso, Goiás, Brazil (Lat/Long -13.7059, -48.8777) throughout the year, you should tilt your panels at an angle of 15° 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 Formoso, Goiás, 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 Formoso, Goiás, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 15° 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	20° North in Autumn	29° North in Winter	8° 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 Formoso, Goiás, 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 Formoso, Goiás, 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 Formoso, Goiás, Brazil

Topographical Features of the Formoso Region

The area around Formoso in Brazil sits within the vast Central Plateau region, characterized by gently rolling terrain and relatively modest elevation changes. This location falls within the Cerrado biome, where the landscape consists primarily of expansive savannas punctuated by gallery forests along waterways. The topography is generally favorable, with most areas maintaining elevations between 400 and 800 meters above sea level. The terrain around Formoso features broad, undulating plains with occasional low hills and gentle slopes. These characteristics make the region particularly well-suited for large-scale development projects, as the relatively flat surfaces require minimal grading and earthwork. The area benefits from good drainage patterns, with several small streams and seasonal watercourses creating natural valleys that help prevent water accumulation during the rainy season.

Soil and Ground Conditions

The underlying geology consists primarily of sedimentary rocks and weathered crystalline formations typical of the Brazilian Shield. Surface soils are generally well-drained, consisting of sandy loams and clay-rich latosols that provide stable foundations. These soil conditions are advantageous for construction activities, offering good bearing capacity while remaining relatively easy to work with during site preparation. The region experiences distinct wet and dry seasons, but the well-draining soils and gentle topography help minimize issues with standing water or erosion. The natural vegetation of scattered trees and grasslands indicates stable ground conditions that can support substantial infrastructure development.

Optimal Areas for Large-Scale Solar Development

The most suitable locations for extensive solar installations would be the broad, gently sloping plateaus that extend in all directions from Formoso. These areas offer several key advantages, including minimal shading from natural features, consistent terrain that simplifies installation processes, and good accessibility for construction and maintenance vehicles. The elevated plains to the south and southwest of Formoso present particularly attractive conditions, with expansive flat areas that could accommodate very large solar arrays with minimal environmental impact. These zones feature stable soils, gentle southern-facing slopes that optimize solar exposure, and sufficient distance from sensitive riparian areas along the region's waterways. Areas with slight elevation variations can actually be beneficial, as gentle south-facing slopes enhance solar collection efficiency while providing natural drainage. The key is identifying locations with gradual, consistent gradients rather than steep or irregular terrain that would complicate installation and maintenance activities.

Infrastructure and Access Considerations

The topography around Formoso supports good transportation access, with the relatively flat terrain making road construction and maintenance straightforward. This accessibility is crucial for large-scale solar projects, which require reliable routes for equipment transport during construction and ongoing maintenance access throughout the operational life of the installation. The region's elevation provides natural advantages for electrical transmission infrastructure, as the higher ground facilitates efficient power line routing to population centers and grid connection points. The stable terrain also supports the construction of necessary support facilities, including maintenance buildings, equipment storage areas, and access roads that large solar installations require.

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.