Serra, Espírito Santo, Brazil is a relatively favorable location for solar PV energy generation throughout the year. Situated in the tropics at latitude -20.1088 and longitude -40.3022, this location benefits from consistent sunlight patterns typical of tropical regions, with seasonal variations more defined by wet and dry periods than dramatic changes in daylight hours.

Seasonal Solar Production

Solar energy generation at this location shows moderate seasonal variation. Summer months produce the highest energy output at 6.23kWh per day for each kilowatt of installed capacity. This decreases to 5.34kWh/day during autumn, reaches its lowest point in winter at 4.44kWh/day, before recovering to 5.03kWh/day in spring.

The difference between the best and worst seasons is approximately 1.79kWh/day per kilowatt installed, which represents about a 29% reduction from summer to winter. Despite this variation, even the winter months maintain respectable production levels compared to many non-tropical locations.

Optimal Panel Installation

For fixed solar panel installations in Serra, 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 throughout the year, accounting for the Earth's elliptical orbit and the site's specific latitude.

Environmental Considerations

Several environmental factors could potentially affect solar production in Serra:

• Seasonal rainfall: The tropical wet season may bring extended periods of cloud cover, reducing solar irradiance. Installing microinverters or power optimizers can help mitigate production losses during partially cloudy conditions.
• Dust and pollen: Agricultural activities and natural vegetation in the region may generate airborne particles that accumulate on panels. Implementing regular cleaning schedules and possibly automated cleaning systems can maintain optimal performance.
• Coastal proximity: Serra's relative proximity to the Atlantic coast means salt spray could accumulate on panels in certain areas. Using corrosion-resistant mounting hardware and frames is advisable, along with periodic freshwater cleaning.

Overall, Serra presents favorable conditions for solar PV installations with good year-round production potential. The relatively small seasonal variation means that systems can be designed with less oversizing than would be required in locations with more extreme seasonal differences.

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 Serra

Seasonal solar PV output for Latitude: -20.1088, Longitude: -40.3022 (Serra, 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 Serra, Brazil

To maximize your solar PV system's energy output in Serra, Brazil (Lat/Long -20.1088, -40.3022) 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 Serra, 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 Serra, 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 Serra, 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 Serra, 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 Serra, Brazil

Serra, located in the state of Espírito Santo, Brazil, features a diverse and complex topography that significantly influences its suitability for solar photovoltaic (PV) development. The region sits along the eastern Brazilian coast, characterized by a mixture of coastal lowlands that gradually rise into more elevated terrain as one moves inland. The eastern portions of Serra face the Atlantic Ocean, creating a relatively flat coastal plain. This coastal area has sandy soils and gentle slopes, with elevations typically below 50 meters above sea level. Moving westward, the landscape begins to undulate more prominently, with rolling hills becoming a dominant feature of the central parts of the municipality.

Mountainous Features

The western sections of Serra showcase more pronounced elevation changes, with portions reaching heights of 200-800 meters. These areas form part of the broader Brazilian Highlands, specifically the Atlantic Plateau that runs parallel to much of Brazil's eastern coastline. The terrain here becomes increasingly rugged with steeper slopes and more challenging accessibility. Throughout the region, numerous small river valleys cut through the landscape, creating natural drainage systems that flow generally eastward toward the Atlantic. These waterways have carved distinct topographical features over time, resulting in some areas with significant slope variations within relatively short distances.

Solar PV Suitability

For large-scale solar PV development, the most appropriate areas would be found in the central and eastern portions of Serra where several favorable conditions converge. The gently rolling terrain in these areas provides sufficient flatness for efficient panel installation while still offering slight slopes that can be oriented toward the north (in the Southern Hemisphere) to maximize solar exposure. The central plateau regions, where elevations range from 50-200 meters, present particularly promising opportunities. These areas typically have fewer obstructions that might cast shadows across solar arrays, an important consideration for maximizing energy production. Additionally, these zones generally have better access to existing infrastructure, including roads and transmission lines, which significantly reduces development costs. Areas to avoid would include the steeper western highlands where installation costs would be prohibitively high due to the challenging terrain. Similarly, the immediate coastal areas, while flat, may face concerns related to salt spray, higher humidity levels, and potential flooding during extreme weather events. The northeastern sectors of Serra municipality, where moderate elevation combines with relatively stable soil conditions and proximity to existing electrical infrastructure, represent particularly promising locations for solar development. These areas balance the topographical requirements with practical considerations of construction and grid connection. It's worth noting that some of the cleared agricultural lands throughout the central region also present excellent opportunities, as they typically feature minimal shading obstacles and have already undergone land-use transformation, potentially simplifying the permitting process compared to undeveloped areas.

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.