Solar Energy Potential in Goianira, Goiás, Brazil

Goianira, Goiás, Brazil offers a promising location for solar energy generation, situated in the tropics where sunlight remains relatively consistent throughout the year. This location experiences seasonal variations primarily through wet and dry periods rather than significant changes in daylight hours. The solar electricity production data reveals a remarkably balanced output across all seasons. In Spring, panels generate their highest output at 6.37kWh per day for each kilowatt of installed capacity. Summer follows closely with 6.29kWh/day, while Autumn and Winter show only slightly lower production at 5.92kWh/day and 5.88kWh/day respectively. This minimal seasonal variation (less than 8% difference between the highest and lowest producing seasons) makes Goianira an excellent year-round location for solar energy production. The consistent output means solar installations here can provide reliable power throughout the entire year without the dramatic seasonal drops seen in locations farther from the equator.

Optimal Panel Installation

For fixed solar panel installations in Goianira, Goiás, the ideal tilt angle to maximize year-round energy production is 16 degrees facing North. This specific angle has been calculated by analyzing the location's latitude and the daily solar elevation angles throughout the year, weighted by the solar generation potential. Spring and summer months (September through March) represent the peak production period, though the difference compared to autumn and winter is relatively small. This consistency is a significant advantage for solar installations in this region.

Environmental Considerations

Despite the favorable conditions, several environmental factors may impact solar production in Goianira:

• Heavy rainfall during the wet season (typically October to April) can temporarily reduce solar output and may cause dirt accumulation on panels
• High temperatures, particularly during summer months, can slightly decrease panel efficiency
• Potential dust accumulation during the dry season can gradually reduce panel performance

Preventative Measures

To maximize solar production in Goianira, Goiás, several preventative measures should be considered: 1. Install panels with adequate spacing and ventilation to mitigate efficiency losses from high temperatures. 2. Implement a regular cleaning schedule, particularly at the beginning and end of the dry season when dust accumulation is highest. 3. Consider slightly adjustable mounting systems that allow for minor tilt adjustments between seasons, potentially increasing annual production by 2-3%. 4. Use solar panels with high temperature coefficients that maintain better performance in tropical heat. 5. Ensure proper drainage around ground-mounted systems to prevent water accumulation during heavy rainy season downpours. With these considerations addressed, Goianira represents an excellent location for solar PV installations with its consistent year-round production and minimal seasonal variations.

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 Goianira

Seasonal solar PV output for Latitude: -16.5036, Longitude: -49.4328 (Goianira, 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 16° North in Goianira, Brazil

To maximize your solar PV system's energy output in Goianira, Brazil (Lat/Long -16.5036, -49.4328) throughout the year, you should tilt your panels at an angle of 16° 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 Goianira, 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 Goianira, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 16° North tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
0° in Summer	23° North in Autumn	32° North in Winter	11° 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 Goianira, 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 Goianira, 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 Goianira, Brazil

The topography around Goianira, Brazil presents a diverse landscape characterized by gently rolling hills, plateaus, and river valleys. Located in the central Brazilian state of Goiás, Goianira sits within the Brazilian Highlands region, specifically in what is known as the Central Plateau (Planalto Central). The terrain generally consists of moderately elevated plains with subtle undulations rather than dramatic mountain ranges or deep valleys. The elevation in the Goianira area averages approximately 700-800 meters above sea level. This modest elevation contributes to the region's tropical savanna climate. The landscape is part of the broader Cerrado biome, Brazil's vast tropical savanna ecosystem, which features a mix of grasslands with scattered trees and shrubs adapted to the seasonal rainfall patterns.

Hydrological Features

The area is influenced by several water bodies, most notably the Meia Ponte River which flows near Goianira. This river and its tributaries have carved subtle valleys through the landscape over time, creating gentle depressions in the otherwise relatively flat terrain. These waterways form part of the larger Paraná River basin, eventually connecting to the massive Paraná-Paraguay river system. The topographic profile shows few significant obstacles like steep mountains or deep canyons that would impede development. Instead, the landscape offers extensive areas of relatively flat or gently sloping terrain, which is advantageous for various land uses including agriculture and potential energy projects.

Optimal Areas for Solar Development

For large-scale solar photovoltaic installations, several areas near Goianira present favorable conditions. The most suitable locations would be found on the higher, flatter plateaus that characterize much of the surrounding region. These elevated plains offer several advantages for solar PV deployment: The slightly elevated areas to the east and northeast of Goianira provide excellent potential for solar installations. These higher plateaus receive consistent solar exposure throughout the day with minimal shadowing effects from topographic features. The gentle slopes facing north or northwest would be particularly advantageous in the Southern Hemisphere for maximizing solar radiation capture. Areas with minimal vegetation cover, particularly where the natural Cerrado has been previously cleared for agricultural use, would require less preparation for solar farm development. These zones are prevalent in the broader region surrounding Goianira. The relatively stable soil composition of the plateaus offers good foundation conditions for mounting solar panel arrays without excessive grading or earthwork requirements. The clay-rich soils common to the Cerrado region, while sometimes challenging during rainy periods, generally provide adequate stability for infrastructure development. Areas farther from the Meia Ponte River and its tributaries would be preferable to avoid potential flooding concerns and to minimize environmental impacts on riparian ecosystems. The slight elevations of the plateaus provide natural drainage that helps protect infrastructure investments. The proximity to Goiânia, the state capital located just south of Goianira, represents an advantage for potential solar developments in terms of grid connection and energy distribution infrastructure. The relatively flat terrain between these population centers has already facilitated transportation and utility corridors that could support energy transmission from new solar installations. The region's topography, combined with its location in the tropical sunbelt and relatively low frequency of extreme weather events, makes the plateaus surrounding Goianira promising candidates for large-scale solar energy development projects that could contribute significantly to Brazil's renewable energy portfolio.

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.