Solar PV Analysis of Curitiba, Brazil
Curitiba, Parana, Brazil, located at latitude -25.5026 and longitude -49.2908, presents a promising site for solar power generation with varying seasonal averages per kilowatt (kW) of installed solar capacity. During the summer months, the city can expect to generate an average of 6.14 kilowatt-hours (kWh) per day per kW of installed solar panels due to longer daylight hours and higher temperatures which favor photovoltaic (PV) energy production.
In autumn and spring, the averages drop slightly to 4.52 kWh/day/kW and 5.04 kWh/day/kW respectively due to shorter days and lower sun intensity compared to summer months but still offer considerable potential for harnessing solar energy.
Winter sees the lowest average at 3.70 kWh/day/kW because of further reduced daylight hours and lower temperatures which decrease PV efficiency.
For a fixed panel installation in Curitiba, Parana, it is recommended that panels be tilted at an angle of 23 degrees facing north for optimal sunlight exposure throughout the year.
Despite its potential for solar power generation, Curitiba's climate could present some challenges as well. The city experiences heavy rainfall especially during summer months which could result in reduced sunlight exposure thereby affecting PV performance negatively.
To mitigate this issue during installation phase itself, one could consider using high-quality PV modules that perform better under low-light conditions or incorporate rainwater management systems into their design so that water does not accumulate on panels obstructing sunlight penetration.
Furthermore, regular maintenance such as cleaning off any dust or debris from panel surfaces can also help ensure optimal performance year-round despite environmental factors that might impede production levels.
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 Curitiba
Seasonal solar PV output for Latitude: -25.5026, Longitude: -49.2908 (Curitiba, 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 23° North in Curitiba, Brazil
To maximize your solar PV system's energy output in Curitiba, Brazil (Lat/Long -25.5026, -49.2908) throughout the year, you should tilt your panels at an angle of 23° 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 Curitiba, 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 Curitiba, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 23° North tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 10° North in Summer | 31° North in Autumn | 41° 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 Curitiba, 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 Curitiba, Brazil.
Our calculation method
- Solar Position:
We determine the Sun's position on the Winter solstice using the location's latitude and solar declination. - Shadow Projection:
We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle. - 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 Curitiba, Brazil
The topography around Curitiba, Brazil is mostly flat with some rolling hills in the surrounding areas. The nearby areas that would be most suitable for large-scale solar PV are those with abundant open space and unobstructed access to direct sunlight. Examples of such areas include cleared agricultural land, abandoned industrial sites, rooftops of large buildings, and other flat surfaces.
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
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Friday 10th of November 2023
Last Updated: Monday 21st of July 2025
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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.
