Iconha, Espírito Santo, Brazil presents a reasonably good location for year-round solar energy generation, though it's not among the world's most ideal solar sites. Located in the tropics where sunlight remains fairly consistent throughout the year, this coastal Brazilian location shows typical seasonal variation in solar energy production.

Seasonal Solar Performance

The solar energy output varies significantly across the seasons at this location. Summer delivers the strongest performance at 6.23 kWh per day for each kilowatt of installed solar capacity. Spring and autumn provide moderate production levels at 5.03 kWh and 5.34 kWh respectively, while winter shows the lowest output at 4.44 kWh per day per kilowatt installed. This seasonal pattern means that summer is clearly the optimal time for solar generation, producing about 40% more energy than the winter months. The shoulder seasons of spring and autumn offer fairly consistent mid-range production levels.

Optimal Panel Installation

For maximum year-round energy production at Iconha, Espírito Santo, solar panels should be installed at a fixed tilt angle of 19 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.

Local Factors Affecting Solar Production

Several environmental and weather factors in the Iconha region could potentially impact solar energy generation:

• Coastal humidity and salt air: Being located near the Atlantic coast, the area experiences high humidity levels and salt-laden air that can reduce panel efficiency and cause corrosion over time
• Tropical rainfall patterns: The region experiences distinct wet and dry seasons, with heavy rainfall during wet periods that can temporarily reduce solar output and create water-related maintenance issues
• High temperatures: Tropical heat can reduce solar panel efficiency, as photovoltaic cells typically perform less efficiently at very high temperatures
• Potential for tropical storms: The coastal location may occasionally experience severe weather events that could damage solar installations

Preventative Measures for Better Performance

Several installation strategies can help maximize solar energy production despite these local challenges:

• Use corrosion-resistant materials: Install panels with aluminum frames and stainless steel mounting hardware specifically designed for coastal environments
• Ensure proper drainage: Design mounting systems with adequate water runoff to prevent pooling during heavy rains
• Plan for regular cleaning: Establish maintenance schedules to remove salt buildup, dust, and debris that accumulate more quickly in coastal tropical environments
• Choose heat-tolerant panels: Select solar panels with better temperature coefficients that maintain higher efficiency in hot conditions
• Secure mounting systems: Use robust mounting structures designed to withstand high winds and potential storm conditions
• Maintain adequate ventilation: Ensure proper airflow around panels to help with cooling and reduce efficiency losses from overheating

Despite these challenges, Iconha's consistent tropical sunlight and reasonable seasonal variation make it a viable location for solar energy generation with proper planning and installation techniques.

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 Iconha

Seasonal solar PV output for Latitude: -20.7477, Longitude: -40.8697 (Iconha, 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 Iconha, Brazil

To maximize your solar PV system's energy output in Iconha, Brazil (Lat/Long -20.7477, -40.8697) 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 Iconha, 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 Iconha, 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
5° North in Summer	26° North in Autumn	36° North in Winter	15° 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 Iconha, 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 Iconha, 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 Iconha, Brazil

Topographical Features of Iconha

Iconha sits within the mountainous coastal region of Espírito Santo state in southeastern Brazil, positioned between the Atlantic Ocean to the east and the rugged interior highlands. The municipality is characterized by rolling hills and steep-sided valleys that are typical of the Brazilian coastal mountain ranges. The terrain rises gradually from east to west, with elevations ranging from near sea level along the coastal plain to several hundred meters above sea level in the western portions of the region.

The landscape is dominated by the remnants of ancient geological formations, creating a complex pattern of ridges, valleys, and plateaus. Much of the original Atlantic Forest that once covered these hills has been cleared for agriculture and development, leaving behind a patchwork of pastureland, small farms, and scattered forest fragments. The topography is generally too steep and irregular for large-scale development projects in many areas, though some flatter sections exist on hilltops and in broader valley floors.

Drainage and Water Features

Several small rivers and streams flow through the region, carving deep valleys as they make their way toward the Atlantic Ocean. These waterways create additional topographical complexity, with their associated floodplains and riparian zones forming natural corridors through the landscape. The drainage patterns follow the general east-west orientation of the terrain, with most water flowing toward the coast.

Optimal Areas for Solar Development

The most suitable locations for large-scale solar photovoltaic installations would be found on the broader hilltop plateaus and gentler slopes that occur throughout the region. These elevated areas typically offer the best combination of relatively flat terrain and minimal shading from surrounding topographical features. The western portions of the municipality, where elevations are higher and the terrain occasionally levels out into broader plateaus, would likely provide the most promising sites.

Areas that should be avoided include the steep valley sides, narrow ridgelines, and locations near watercourses where flooding might pose risks. The heavily forested remnants, while potentially suitable from a topographical standpoint, would require significant environmental consideration and likely face regulatory challenges due to their ecological importance.

Former agricultural lands on moderate slopes and hilltops represent particularly attractive opportunities, as these areas have already been cleared and modified for human use. The existing road network serving these rural areas would also facilitate construction and maintenance access for solar installations. Areas with southern exposure on gentle to moderate slopes would be preferable, as they would receive consistent solar exposure throughout the day while remaining accessible for equipment installation and maintenance.

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.