Solar Energy Potential in Goiatins, Tocantins, Brazil

Goiatins, Tocantins, Brazil, located at latitude -8.041 and longitude -47.4738, offers excellent conditions for solar power generation throughout the year. This tropical location provides consistent sunlight with seasonal variations primarily defined by wet and dry periods rather than significant temperature differences. The solar energy production potential in Goiatins shows strong performance across all meteorological seasons. During winter, the location achieves its peak efficiency with 6.55 kWh per day for each kilowatt of installed solar capacity. Spring follows with 5.87 kWh/day, while autumn produces 5.78 kWh/day. Summer shows the lowest output at 5.24 kWh/day per kilowatt installed, though this is still a respectable figure for solar production.

Optimal Panel Installation

For fixed solar panel installations in Goiatins, Tocantins, the ideal tilt angle is 9 degrees facing North. This specific angle has been calculated to maximize year-round solar energy capture based on the location's position relative to the sun's path throughout the year. Proper orientation at this angle ensures optimal energy harvesting across seasons without requiring adjustable mounting systems.

Environmental Considerations

Several environmental factors could potentially affect solar production in Goiatins:

• Seasonal rainfall: The region experiences a pronounced wet season that can reduce solar efficiency due to cloud cover and rain. Installing panels at the recommended angle helps maximize production during these periods by optimizing exposure during breaks in cloud cover.
• Dust and pollen: Agricultural activities in the region may generate airborne particles that settle on panels. Regular cleaning maintenance and potentially installing automated cleaning systems can mitigate this issue.
• High temperatures: While not directly affecting sunlight availability, the tropical heat can slightly reduce panel efficiency. Using panels with good temperature coefficients and ensuring adequate airflow beneath the installation can help maintain performance.

Preventative Measures

To maximize solar production in Goiatins, Tocantins, several preventative measures should be considered during installation. Elevating panels sufficiently above ground level helps prevent vegetation shading and improves natural cleaning from rainfall. Installing quality inverters with high tolerance for temperature variations ensures consistent performance in the tropical climate. Additionally, implementing a regular maintenance schedule that accounts for the region's wet and dry seasons will help maintain optimal system efficiency throughout the year. The winter dry season presents the ideal period for solar generation in this location, making it an excellent time for any maintenance activities on the system to ensure it operates at peak efficiency during these high-production months.

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 Goiatins

Seasonal solar PV output for Latitude: -8.041, Longitude: -47.4738 (Goiatins, 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 9° North in Goiatins, Brazil

To maximize your solar PV system's energy output in Goiatins, Brazil (Lat/Long -8.041, -47.4738) throughout the year, you should tilt your panels at an angle of 9° 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 Goiatins, 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 Goiatins, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 9° North tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
8° South in Summer	15° North in Autumn	24° 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 Goiatins, 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 Goiatins, 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 Goiatins, Brazil

The topography surrounding Goiatins, Brazil is characterized by a varied landscape that transitions between the Amazon basin and the Brazilian Highlands. Located in the northeastern part of Tocantins state, this region features gently rolling hills interspersed with plateaus and shallow valleys. The terrain generally maintains moderate elevation changes, with the area sitting approximately 300-400 meters above sea level. The nearby landscape includes the influence of the Tocantins River basin, which creates a network of smaller waterways and seasonal streams that have carved natural contours into the terrain over millennia. Vegetation in the region primarily consists of cerrado (tropical savanna) ecosystems, featuring a mix of grasslands and scattered trees that have adapted to the seasonal rainfall patterns.

Terrain Characteristics

The terrain around Goiatins presents a mosaic of flat expanses and undulating features. The relatively open nature of much of this landscape, particularly in areas where the cerrado vegetation is less dense, provides substantial unobstructed surfaces. These open areas receive consistent solar exposure throughout the year due to their proximity to the equator and the region's climate patterns. To the east of Goiatins, the landscape gradually rises toward the Serra Geral do Tocantins, a mountain range that forms part of the larger Brazilian Highlands system. This eastern terrain features more pronounced elevation changes and some steeper slopes that would be less ideal for large installations requiring extensive flat surfaces.

Optimal Areas for Solar Development

The most suitable areas for large-scale solar photovoltaic development near Goiatins would be the flat to gently sloping terrain sections located primarily to the west and southwest of the town. These areas benefit from several advantageous topographical features: The open plateaus in these directions provide extensive flat surfaces that would minimize earthwork requirements for solar array installation. These plateaus typically have good drainage characteristics, reducing flood risks that could potentially damage solar infrastructure. Areas with southern exposure on the gentle slopes would receive optimal solar radiation throughout the year in this Northern Hemisphere location. The natural clearings in the cerrado vegetation pattern further reduce the need for extensive site preparation and vegetation management. The terrain approximately 15-30 kilometers west of Goiatins presents particularly favorable conditions, where broader, flatter expanses coincide with good accessibility via existing road networks. These areas strike an optimal balance between topographical suitability and practical development considerations. Areas to avoid would include the more densely vegetated riparian zones along waterways, where installation would require greater environmental disruption, and the more steeply graded eastern sections approaching the Serra Geral do Tocantins, where construction challenges would increase costs significantly.

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.