Santa Tereza do Oeste, Brazil, located in the Southern Sub Tropics, presents a moderately favorable location for year-round solar energy generation, though with notable seasonal variations that potential solar installers should carefully consider.

Seasonal Solar Performance

The solar energy output at this location shows significant seasonal fluctuation. Summer delivers the strongest performance at 7.02 kWh per day per kW of installed solar capacity, making it the peak production season. Spring follows as the second-best performing season with 6.11 kWh per day per kW, while autumn drops to 5.30 kWh per day per kW. Winter presents the most challenging period for solar generation, producing only 3.96 kWh per day per kW of installed capacity. This seasonal pattern means that solar installations will generate nearly 77% more electricity in summer compared to winter. The substantial difference between peak and low seasons suggests that battery storage systems or grid-tie arrangements would be particularly beneficial for maintaining consistent energy supply year-round.

Optimal Panel Installation

For fixed panel installations at Santa Tereza do Oeste, the ideal tilt angle to maximize total year-round solar production is 22 degrees facing North. This angle has been calculated by analyzing daily solar elevation angles at this latitude, determining optimal panel positioning, and weighting these angles according to daily photovoltaic potential using solar irradiance data that accounts for Earth's elliptical orbit.

Local Environmental Factors

Several environmental and weather factors in this Southern Sub Tropical location could potentially impact solar energy production:

• High humidity and frequent rainfall during certain seasons may reduce solar irradiance and require more frequent panel cleaning
• Potential for hail storms during transitional seasons that could damage solar panels
• Dense vegetation growth in the subtropical climate that may create shading issues if not properly managed
• Dust and pollen accumulation from surrounding agricultural activities common in this region of Brazil

Preventative Measures for Optimal Performance

To maximize solar energy production despite these challenges, several preventative measures should be implemented during installation and ongoing maintenance:

• Install panels with adequate spacing and height clearance to ensure proper drainage and air circulation, reducing humidity-related efficiency losses
• Use tempered glass panels with higher impact resistance ratings to withstand potential hail damage
• Establish regular vegetation management around the installation site to prevent shading from growing trees or bushes
• Implement a scheduled cleaning program, particularly during high-pollen seasons and after dust storms
• Consider micro-inverters or power optimizers to minimize the impact of partial shading on overall system performance

Overall, while Santa Tereza do Oeste offers decent solar potential, the significant seasonal variation and local environmental factors require careful planning and maintenance to achieve optimal energy production throughout the year.

Note: The Southern Sub Tropics extend from -23.5° latitude South down to -35° latitude.

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 Santa Tereza Do Oeste

Seasonal solar PV output for Latitude: -25.0444, Longitude: -53.6194 (Santa Tereza Do Oeste, 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 22° North in Santa Tereza Do Oeste, Brazil

To maximize your solar PV system's energy output in Santa Tereza Do Oeste, Brazil (Lat/Long -25.0444, -53.6194) throughout the year, you should tilt your panels at an angle of 22° 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 Santa Tereza Do Oeste, 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 Santa Tereza Do Oeste, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 22° North tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
9° North in Summer	30° North in Autumn	40° North in Winter	18° 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 Santa Tereza Do Oeste, 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 Santa Tereza Do Oeste, 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 Santa Tereza Do Oeste, Brazil

Topographical Features of Santa Tereza do Oeste

Santa Tereza do Oeste sits within the western region of Paraná state, characterized by gently rolling hills and undulating terrain typical of the Brazilian Plateau. The landscape around this municipality features moderate elevation changes, with the terrain gradually rising and falling across broad, sweeping contours rather than displaying sharp ridges or deep valleys.

The area forms part of the Paraná Basin's sedimentary formations, creating a relatively stable geological foundation with fertile soils that have supported extensive agricultural development. The topography consists primarily of low hills interspersed with shallow valleys, creating a mosaic of farmland that extends across much of the surrounding region.

Water features include several small streams and tributaries that flow through the gentle valleys, eventually connecting to larger river systems. These waterways have carved subtle drainage patterns into the landscape over time, but the overall relief remains modest, with elevation changes typically occurring gradually across distances of several kilometers.

Optimal Areas for Large-Scale Solar Development

The most suitable locations for extensive solar photovoltaic installations would be found on the broader hilltops and south-facing slopes that characterize much of the surrounding countryside. These elevated areas offer several advantages, including reduced shading from surrounding terrain and improved air circulation that helps maintain optimal panel temperatures.

The gently sloping terrain provides natural drainage while avoiding the steeper grades that would complicate construction and maintenance activities. Areas with consistent southward orientation would be particularly valuable, as they maximize exposure to the sun's path across the northern sky in the Southern Hemisphere.

Large agricultural fields on the rolling hills present excellent opportunities for solar development, especially those areas that are relatively flat or have uniform, gradual slopes. The existing agricultural infrastructure, including access roads and electrical connections to nearby population centers, would support the development of substantial solar installations.

The broader valley floors, while generally flat and accessible, may be less optimal due to potential morning fog accumulation and reduced air movement. However, the larger expanses of level ground in these areas could still accommodate significant solar arrays, particularly where drainage is adequate and flood risk is minimal.

Areas near existing electrical infrastructure and major transportation corridors would offer additional advantages for large-scale development, reducing the costs associated with grid connection and equipment transportation during construction and ongoing maintenance activities.

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!

Citation Guide

Article Details for Citation

Tell Us About Your Work

We love seeing how our research helps others! If you've cited this article in your work, we'd be delighted to hear about it. Drop us a line via our Contact Us page or on X, to share where you've used our information - we may feature a link to your work on our site. This helps create a network of valuable resources for others in the solar energy community and helps us understand how our research is contributing to the field. Plus, we occasionally highlight exceptional works that reference our research on our social media channels.

Feeling generous?

Share this with your friends!

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.