Jacutinga, Minas Gerais, Brazil presents a moderately good location for year-round solar energy generation, though it's not among the most ideal solar locations globally. The area experiences seasonal variation in solar output, with summer and spring delivering the strongest performance.
Seasonal Solar Performance
The location shows clear seasonal patterns in solar energy production. Summer delivers the highest output at 6.62 kWh per day per kW of installed capacity, making it the peak solar season. Spring follows closely with 6.08 kWh per day, while autumn drops to 5.49 kWh per day. Winter represents the lowest production period at 4.83 kWh per day per kW installed. This seasonal variation of approximately 37% between peak and lowest production is typical for locations at this latitude. The difference reflects the changing sun angles and weather patterns throughout the year.Optimal Installation Configuration
For maximum year-round energy production, solar panels at this location should be installed at a fixed tilt angle of 21 degrees facing north. This angle has been calculated to optimize total annual solar output by accounting for the sun's changing position throughout the year and weighting the angles based on actual solar irradiance data.Environmental and Weather Challenges
Several local factors could potentially impact solar energy production in Jacutinga:- Tropical rainfall patterns: The region experiences distinct wet and dry seasons, with heavy rainfall during wet periods potentially reducing solar irradiance and creating more cloudy conditions
- High humidity levels: Tropical climates typically maintain high humidity, which can reduce atmospheric clarity and slightly diminish solar panel efficiency
- Dust and debris accumulation: Dry seasons may lead to increased dust settlement on panels, reducing their effectiveness
- Vegetation growth: The tropical climate supports rapid plant growth that could create shading issues if not properly managed
Preventative Measures for Better Performance
Several installation strategies can help maximize solar production despite these challenges:- Regular cleaning schedules: Implement frequent panel cleaning, especially during dry seasons when dust accumulation is highest
- Proper drainage design: Ensure installation includes adequate drainage to prevent water pooling during heavy rains
- Vegetation management: Maintain clear zones around solar installations and regularly trim any growing vegetation that might cast shadows
- Quality mounting systems: Use corrosion-resistant mounting hardware suitable for high-humidity tropical environments
- Strategic positioning: Carefully survey the site to avoid areas prone to prolonged shading from trees or structures
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 Jacutinga
Seasonal solar PV output for Latitude: -22.2974, Longitude: -46.6062 (Jacutinga, 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 21° North in Jacutinga, Brazil
To maximize your solar PV system's energy output in Jacutinga, Brazil (Lat/Long -22.2974, -46.6062) throughout the year, you should tilt your panels at an angle of 21° 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 Jacutinga, 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 Jacutinga, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 21° North tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 6° North in Summer | 28° North in Autumn | 38° North in Winter | 16° 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 Jacutinga, 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 Jacutinga, 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 Jacutinga, Brazil
Topographical Features of Jacutinga Region
Jacutinga sits within the mountainous terrain of southern Minas Gerais state, positioned in the Mantiqueira Mountain Range. This region is characterized by rolling hills, steep valleys, and elevated plateaus that create a complex landscape of varying elevations. The area around Jacutinga features numerous ridgelines and escarpments that are typical of the Brazilian highlands, with the terrain generally sloping toward river valleys that cut through the mountainous landscape.
The local topography includes a mix of forested hillsides and cleared agricultural areas, with elevation changes that can be quite dramatic over relatively short distances. Rocky outcrops and granite formations are common throughout the region, reflecting the geological history of the Mantiqueira Range. The landscape is further shaped by seasonal water flow patterns that have carved deep valleys and created natural drainage systems throughout the mountainous terrain.
Climate and Environmental Conditions
The elevated position of Jacutinga within the Mantiqueira Range creates a subtropical highland climate with distinct wet and dry seasons. The mountainous terrain influences local weather patterns, with higher elevations experiencing cooler temperatures and different precipitation patterns compared to lower-lying areas. The region benefits from relatively clear skies during the dry season, which typically extends from May through September.
Cloud formation and fog can occur frequently in the valleys and lower elevations, particularly during the wet season and early morning periods. The mountainous landscape creates microclimates where weather conditions can vary significantly between hilltops and valley floors, affecting both temperature and cloud cover patterns throughout the day.
Optimal Areas for Large-Scale Solar Development
The most suitable locations for large-scale solar photovoltaic installations around Jacutinga would be the elevated plateaus and south-facing slopes that receive consistent solar exposure throughout the day. These higher elevation areas typically experience less cloud cover and fog interference compared to the valley floors, making them more reliable for solar energy generation.
Areas with gentler slopes and relatively flat terrain would be preferable for construction and maintenance access, while still maintaining good solar exposure. The cleared agricultural lands on hillsides and plateaus present opportunities for solar development, particularly those areas that face south or southwest to maximize solar collection during peak daylight periods.
Valley floors and heavily forested steep slopes would be less suitable due to potential shading from surrounding hills and trees, as well as increased likelihood of morning fog and cloud formation. The rocky outcrops and granite formations, while offering stable foundations, may present challenges for large-scale installation due to difficult terrain access and construction requirements.
Transportation infrastructure and proximity to existing electrical grid connections would also be important considerations, as the mountainous terrain can make access challenging for both construction and ongoing maintenance of solar installations. Areas closer to existing roads and power transmission lines would be more economically viable for large-scale solar projects.
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: Tuesday 1st of July 2025
Last Updated: Tuesday 5th of August 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.




