Itarana, Espírito Santo, Brazil represents a highly favorable location for year-round solar energy generation through photovoltaic systems. Located in the tropics at coordinates -19.9604, -40.893, this region benefits from consistent sunlight throughout most of the year, with seasonal variations typically defined by wet and dry periods rather than the dramatic temperature changes seen in temperate climates.

Solar Energy Production Potential

The solar energy output data for Itarana demonstrates strong year-round performance. Summer delivers the highest production at 5.93 kWh per day per kW of installed solar capacity, followed closely by autumn at 5.50 kWh/day per kW. Spring maintains solid output at 5.19 kWh/day per kW, while winter shows the lowest but still respectable production at 4.39 kWh/day per kW. For fixed panel installations at this location, the ideal tilt angle to maximize total year-round solar production is 19 degrees North. This angle is calculated by analyzing daily solar elevation angles at the latitude, determining optimal panel positioning, and weighting these angles by daily photovoltaic potential using solar irradiance data while accounting for Earth's elliptical orbit.

Optimal Solar Generation Periods

The summer and autumn months represent the peak solar generation periods for Itarana, Espírito Santo, with summer offering approximately 35% higher output compared to the winter minimum. However, even during winter, the location maintains reasonably strong solar production, making it suitable for consistent year-round energy generation without dramatic seasonal fluctuations.

Environmental and Weather Challenges

Several environmental factors could potentially impact solar production efficiency in Itarana:

• Tropical rainfall and humidity: The wet season brings heavy precipitation and high humidity levels that can reduce panel efficiency and create maintenance challenges
• Dust and debris accumulation: During dry periods, dust buildup on panels can significantly reduce energy output
• Vegetation growth: The tropical climate promotes rapid plant growth that could create shading issues if not properly managed
• Temperature effects: High ambient temperatures can reduce photovoltaic cell efficiency

Preventative Measures for Optimal Performance

To maximize solar energy production in Itarana's tropical environment, several preventative measures should be implemented:

• Regular cleaning schedule: Establish frequent panel cleaning routines, particularly during dry seasons when dust accumulation is highest
• Proper drainage design: Install systems with adequate drainage to prevent water pooling during heavy rains
• Vegetation management: Maintain clear zones around solar installations and implement regular trimming schedules to prevent shading
• Ventilation considerations: Design installations with proper airflow to help cool panels and maintain efficiency during hot periods
• Corrosion-resistant materials: Use equipment rated for high humidity environments to ensure longevity

Despite these environmental considerations, Itarana's consistent solar resource and strong year-round production potential make it an excellent location for solar photovoltaic installations when proper planning and maintenance protocols are implemented.

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 Itarana

Seasonal solar PV output for Latitude: -19.9604, Longitude: -40.893 (Itarana, 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 19° North in Itarana, Brazil

To maximize your solar PV system's energy output in Itarana, Brazil (Lat/Long -19.9604, -40.893) throughout the year, you should tilt your panels at an angle of 19° 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 Itarana, 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 Itarana, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 19° North tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
4° North in Summer	25° North in Autumn	35° North in Winter	14° 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 Itarana, 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 Itarana, 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 Itarana, Brazil

Topographical Features of the Itarana Region

The area surrounding Itarana in Espírito Santo state sits within a transitional landscape where the coastal lowlands gradually give way to the more elevated terrain of Brazil's interior highlands. This region features a gently undulating topography characterized by rolling hills and modest elevations that create a varied but generally accessible terrain profile. The landscape around Itarana displays typical characteristics of the Atlantic Forest biome transition zone, with elevations ranging from approximately 200 to 800 meters above sea level. The terrain consists primarily of rounded hills and broad valleys carved by centuries of weathering and erosion. These geological formations create natural drainage patterns that flow eastward toward the Atlantic coast, roughly 100 kilometers away. Local topography includes numerous small streams and seasonal watercourses that have shaped the land into a series of gentle ridgelines separated by shallow valleys. The soil composition in this region typically consists of weathered crystalline rocks overlaid with lateritic soils, creating stable ground conditions suitable for various land uses.

Optimal Areas for Large-Scale Solar Development

The most promising locations for extensive solar photovoltaic installations lie along the broader ridgetops and plateau areas that extend northwest and southwest of Itarana. These elevated areas offer several advantages including consistent exposure to direct sunlight throughout the day and minimal shading from adjacent terrain features. The gently sloping hillsides facing south and southeast present particularly favorable conditions for solar panel orientation, as these slopes naturally align with optimal sun-tracking angles. These areas typically feature gradual gradients between 2-8 degrees, which provide excellent drainage while remaining suitable for large-scale construction and maintenance activities. Valley floors and flatter agricultural areas near Itarana also present viable options for solar development, particularly where existing land use patterns allow for conversion. These locations benefit from easier access for construction equipment and maintenance vehicles, though careful site selection remains important to avoid areas prone to seasonal flooding or excessive moisture retention. The region's relatively stable geological conditions and moderate topographical relief create favorable circumstances for solar infrastructure development. Areas with southern exposures and minimal vegetation coverage would require less site preparation, reducing overall project costs and environmental impact while maximizing energy generation potential.

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.