Cariacica, Espírito Santo, Brazil, located at latitude -20.3005 and longitude -40.4692, offers a favorable location for solar PV energy generation throughout the year, with some seasonal variations in output. This tropical location benefits from relatively consistent sunlight patterns compared to locations at higher latitudes.

Seasonal Solar Production

Solar panels in Cariacica demonstrate varying energy production across the meteorological seasons. Summer yields the highest output at 6.23kWh per day for each kilowatt of installed capacity. Autumn follows with 5.34kWh/day, while spring produces 5.03kWh/day. Winter shows the lowest production at 4.44kWh/day per installed kilowatt.

This seasonal pattern indicates that while Cariacica experiences some fluctuation in solar production, the difference between the highest and lowest producing seasons is less dramatic than in locations farther from the equator. Even during winter, solar panels continue to generate a respectable amount of electricity.

Optimal Panel Installation

For fixed solar panel installations in Cariacica, Espírito Santo, the ideal tilt angle to maximize year-round energy production is 19 degrees facing North. This specific angle has been calculated to optimize solar capture across all seasons, accounting for the Earth's elliptical orbit and the site's specific latitude.

Environmental and Weather Considerations

Several factors could potentially impact solar production at this location:

• Tropical rainfall patterns, particularly during the wet season, may temporarily reduce solar output due to cloud cover and direct precipitation.
• High humidity levels common in tropical regions can slightly reduce panel efficiency and potentially accelerate weathering of system components.
• Coastal proximity may expose installations to salt spray, which can corrode mounting hardware and electrical connections if not properly protected.
• Seasonal dust accumulation during drier periods can gradually decrease panel efficiency if not addressed.

Preventative Measures

To mitigate these challenges and maximize energy production, several preventative measures can be implemented:

• Using marine-grade stainless steel mounting hardware and weather-resistant junction boxes to prevent corrosion from humidity and potential salt exposure.
• Installing automated or scheduled cleaning systems to address dust buildup, particularly important during dry seasons.
• Applying anti-soiling coatings to panel surfaces to reduce dust adhesion and make rainfall more effective at natural cleaning.
• Implementing slightly steeper tilt angles than the mathematical optimum if dust accumulation is a significant concern, as this promotes better self-cleaning during rainfall.
• Using microinverters or power optimizers to minimize production losses when some panels are partially shaded by passing clouds.

With these considerations addressed, Cariacica represents a solid location for solar PV deployment, offering relatively consistent production throughout the year with predictable seasonal variations.

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 Cariacica

Seasonal solar PV output for Latitude: -20.3005, Longitude: -40.4692 (Cariacica, 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 Cariacica, Brazil

To maximize your solar PV system's energy output in Cariacica, Brazil (Lat/Long -20.3005, -40.4692) 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 Cariacica, 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 Cariacica, 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	26° North in Autumn	36° 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 Cariacica, 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 Cariacica, 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 Cariacica, Brazil

The landscape surrounding Cariacica, Brazil presents a diverse topographical profile characteristic of coastal southeastern Brazil. Situated in the state of Espírito Santo, Cariacica lies in a transitional zone between the Atlantic coastal plains and the inland highlands. The terrain is predominantly characterized by rolling hills interspersed with lowland areas, particularly toward the east where the municipality approaches Vitória Bay. To the west of Cariacica, the elevation gradually increases as the terrain transitions into the foothills of the Brazilian Highlands. These areas feature more pronounced hills and small mountains, with some peaks reaching several hundred meters above sea level. The topography becomes increasingly rugged as one moves further inland, with steeper slopes and deeper valleys carved by seasonal waterways.

Hydrological Features

The area is crossed by several rivers and streams that have shaped the landscape over millennia. The Jucu River and Santa Maria da Vitória River are significant waterways in the region, flowing eastward toward the Atlantic Ocean. These rivers have created fertile valleys and floodplains that contrast with the surrounding elevated terrain. Wetland areas can be found in the eastern portions of the municipality, especially near the confluence with Vitória Bay. These lowlands are characterized by flat terrain and are often subject to seasonal flooding, making them less suitable for development projects including solar installations.

Vegetation and Land Cover

The natural vegetation of the region belongs to the Atlantic Forest biome, though much of the original forest cover has been altered by human activities. The current landscape is a mosaic of secondary forest patches, agricultural lands, and urban development. The remaining forested areas are typically found on steeper slopes and hilltops where development has been more challenging.

Potential Areas for Solar PV Development

For large-scale solar photovoltaic installations, the most suitable areas near Cariacica would be the gently sloping terrains to the northwest and southwest of the urban center. These areas offer several advantages for solar development: The moderate slopes provide good solar exposure while minimizing the engineering challenges and costs associated with very steep terrain. These areas typically receive consistent solar radiation throughout the year due to their elevated position and reduced risk of shadowing from surrounding topographical features. The northwestern region, extending toward the municipalities of Viana and Domingos Martins, contains numerous plateaus and broad hillsides that could accommodate extensive solar arrays. These locations offer the benefit of being relatively close to existing transmission infrastructure while being sufficiently removed from the densest urban areas. The southwestern corridor, approaching the municipality of Guarapari, also presents favorable conditions with its mix of cleared agricultural lands and gentle hills. These areas have already experienced some level of land modification, potentially reducing the environmental impact of new solar installations. Areas to avoid would include the steeper mountains to the far west, the densely urbanized central portions of Cariacica, and the eastern lowlands near Vitória Bay which may be prone to flooding and have higher humidity levels that could affect solar panel efficiency. The mid-elevation terrains (between approximately 100-400 meters above sea level) generally represent the optimal balance between accessibility, solar exposure, and land availability for large-scale solar PV development in this region.

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.