Ouvidor, Goiás, Brazil presents an excellent location for year-round solar photovoltaic energy generation. Located in the tropical region at coordinates -18.2022, -47.7167, this area benefits from consistent sunlight throughout most of the year, with seasons characterized more by wet and dry periods rather than significant temperature variations.

Solar Energy Production Potential

The solar energy output data for Ouvidor demonstrates strong and consistent performance across all seasons. Summer delivers the highest production at 6.52 kWh per day per kW of installed solar capacity, while spring follows closely with 6.38 kWh per day per kW. Autumn provides 5.99 kWh per day per kW, and even winter, the lowest-producing season, still generates a respectable 5.56 kWh per day per kW of installed capacity. The relatively small variation between seasons—less than 1 kWh difference between the highest and lowest producing periods—makes this location particularly attractive for solar installations. This consistency means that solar systems will provide reliable energy output throughout the year without dramatic seasonal fluctuations.

Optimal Installation Configuration

For maximum year-round solar production at Ouvidor, Goiás, solar panels should be installed at a fixed tilt angle of 18 degrees facing north. This optimal angle is calculated by analyzing daily solar elevation angles at this latitude, determining daily optimal panel positioning, and weighting these angles using solar irradiance data while accounting for Earth's elliptical orbit around the sun.

Environmental and Weather Considerations

Several local factors could potentially impact solar energy production in Ouvidor and require consideration during installation planning. The tropical climate brings distinct wet and dry seasons, with the rainy period potentially creating challenges for solar production. Heavy cloud cover during wet seasons can reduce solar irradiance, though the production data suggests this impact is manageable given the relatively modest seasonal variation in output. Humidity levels in tropical regions like Ouvidor can be consistently high, which may lead to moisture-related issues with solar equipment over time. Additionally, the combination of high temperatures and humidity can create conditions that reduce panel efficiency and accelerate component degradation.

Preventative Measures for Enhanced Performance

Several installation strategies can help maximize solar energy production and system longevity in Ouvidor's tropical environment:

• Install panels with adequate ventilation spacing beneath to promote air circulation and cooling, which helps maintain efficiency in high-temperature conditions
• Use high-quality mounting systems and electrical components specifically rated for tropical climates and high humidity environments
• Implement proper drainage systems around ground-mounted installations to prevent water accumulation during heavy rains
• Select solar panels with robust anti-reflective coatings and durable frame materials that resist corrosion in humid conditions
• Plan for regular cleaning schedules, as dust accumulation during dry periods and potential organic growth during wet seasons can reduce panel efficiency

The consistent solar production throughout the year, combined with proper installation techniques designed for tropical conditions, makes Ouvidor an highly suitable location for solar photovoltaic systems. The key to success lies in selecting appropriate equipment and installation methods that account for the local climate while taking advantage of the excellent solar resource availability.

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 Ouvidor

Seasonal solar PV output for Latitude: -18.2022, Longitude: -47.7167 (Ouvidor, 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 18° North in Ouvidor, Brazil

To maximize your solar PV system's energy output in Ouvidor, Brazil (Lat/Long -18.2022, -47.7167) throughout the year, you should tilt your panels at an angle of 18° 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 Ouvidor, 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 Ouvidor, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 18° North tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
2° North in Summer	24° North in Autumn	34° North in Winter	12° 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 Ouvidor, 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 Ouvidor, 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 Ouvidor, Brazil

Topographical Features of the Ouvidor Region

The area surrounding Ouvidor in Goiás state sits within Brazil's Central Plateau, a vast elevated region characterized by gently rolling terrain and relatively moderate elevation changes. This location falls within the Cerrado biome, where the landscape consists primarily of expansive plains interspersed with low hills and shallow valleys. The elevation in this region typically ranges between 800 and 1,000 meters above sea level, creating a stable foundation for large-scale development projects. The topography features broad, undulating plateaus with gentle slopes that rarely exceed 10-15 degrees. These characteristics make the terrain highly accessible and suitable for construction activities. The soil composition consists mainly of well-drained lateritic soils typical of the Brazilian highlands, which provide good stability for infrastructure development while allowing proper water drainage during the rainy season. Natural vegetation in the undeveloped areas consists of the characteristic Cerrado savanna, with scattered trees and grasslands. However, much of the region has been converted to agricultural use, particularly cattle ranching and crop cultivation, resulting in large open areas with minimal natural obstacles.

Optimal Areas for Large-Scale Solar Development

The most suitable locations for extensive solar photovoltaic installations lie on the broad plateau areas southwest and northeast of Ouvidor. These zones offer the ideal combination of flat to gently sloping terrain, excellent accessibility via existing road networks, and minimal environmental constraints. The southwestern plateau areas are particularly attractive due to their proximity to existing electrical infrastructure and transportation corridors. Areas that were previously used for extensive cattle ranching present excellent opportunities for solar development, as they typically feature cleared land with established access routes and minimal topographical challenges. These locations require minimal site preparation compared to areas with dense vegetation or irregular terrain. The northeastern sections of the region also show strong potential, especially where the terrain opens into broad, flat expanses with southern exposure. These areas benefit from consistent wind patterns that help maintain optimal panel temperatures while offering excellent sight lines free from shading obstacles. Agricultural areas currently used for seasonal crops could potentially be converted or adapted for solar installations, particularly those on flatter sections where mechanical farming has already established level surfaces. The existing infrastructure in these areas, including access roads and electrical connections, provides additional advantages for large-scale solar development.

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.