Solar Energy Potential in Santa Teresa, Espírito Santo, Brazil

Santa Teresa, Espírito Santo, Brazil, situated at latitude -19.8967 and longitude -40.6557, offers favorable conditions for solar PV installations throughout the year. Located in the tropics, this region benefits from relatively consistent sunlight patterns, though with seasonal variations in energy production. The solar energy generation potential shows moderate fluctuation across seasons. During summer months, panels can produce an impressive 5.93 kWh per day for each kilowatt installed. Autumn remains productive with 5.50 kWh/day, while spring yields 5.19 kWh/day. Winter shows the lowest output at 4.39 kWh/day per installed kilowatt, though this reduction is not as dramatic as seen in locations farther from the equator. For fixed solar panel installations in Santa Teresa, Espírito Santo, the ideal tilt angle to maximize year-round energy production is 19 degrees facing North. This specific angle optimizes the capture of solar radiation throughout the year, accounting for the location's position in the Southern Hemisphere.

Seasonal Considerations

Summer and autumn represent the peak production periods in Santa Teresa, Espírito Santo, making these seasons particularly valuable for energy generation. While winter shows reduced output, the difference between peak and low seasons is less pronounced than in temperate regions, allowing for meaningful energy production year-round. The consistent tropical sunlight pattern means that even during the "low" winter season, solar installations remain reasonably productive. This year-round viability makes Santa Teresa an attractive location for solar energy investments with relatively predictable returns throughout the year.

Potential Challenges and Mitigation

Several environmental factors could impact solar production in Santa Teresa. The tropical climate brings seasonal heavy rainfall, particularly during summer months, which can temporarily reduce solar efficiency through cloud cover and panel soiling. Installing panels at the recommended 19-degree tilt helps with natural cleaning during rain events, but periodic manual cleaning may be necessary during extended wet periods. High humidity in the region can contribute to accelerated degradation of electrical components. Using marine-grade materials and properly sealed junction boxes can significantly extend system life. Additionally, installing lightning protection systems is advisable due to the frequency of thunderstorms in tropical regions. Dust accumulation during dry seasons can gradually reduce panel efficiency. Implementing automated cleaning systems or scheduling regular maintenance during these periods helps maintain optimal performance. Finally, considering wind-resistant mounting systems is prudent, as tropical storms occasionally affect the region. With proper system design addressing these factors, Santa Teresa remains an excellent location for solar PV installations capable of delivering consistent renewable energy throughout the year.

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 Santa Teresa

Seasonal solar PV output for Latitude: -19.8967, Longitude: -40.6557 (Santa Teresa, 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 Santa Teresa, Brazil

To maximize your solar PV system's energy output in Santa Teresa, Brazil (Lat/Long -19.8967, -40.6557) 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 Santa Teresa, 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 Santa Teresa, 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 Santa Teresa, 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 Santa Teresa, 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 Santa Teresa, Brazil

The topography surrounding Santa Teresa, Brazil, showcases a varied landscape characterized predominantly by rolling hills and mountainous terrain. Located in the state of Espírito Santo, Santa Teresa sits at an elevation of approximately 675 meters (2,215 feet) above sea level. The region is part of the Atlantic Forest biome and features significant topographical variation, with elevations ranging from around 300 meters in the valleys to peaks exceeding 1,000 meters in the nearby mountain ranges.

Mountain Features

The area is nestled within the coastal mountain ranges that run parallel to Brazil's eastern seaboard. These mountains are extensions of the larger Serra do Mar and Serra da Mantiqueira systems. The terrain is distinctly undulating, with steep slopes in many areas creating a picturesque landscape of valleys and ridges. This mountainous character has historically shaped human settlement patterns, with communities typically developing in the more accessible valley areas.

Hydrography

The topography is further defined by numerous water courses that have carved valleys through the mountainous terrain. Several rivers and streams flow through the region, including tributaries of the Rio Doce basin. These waterways have created natural divisions in the landscape and contributed to the formation of fertile valleys between the hillsides.

Vegetation Impact on Topography

The natural vegetation of the region, where preserved, consists of Atlantic Forest species that help stabilize the hillsides. In areas where deforestation has occurred, the topography may be more susceptible to erosion, especially on steeper slopes. Agricultural development has modified portions of the landscape, with coffee plantations and other crops often arranged in terraced formations that follow the contours of the hills.

Solar PV Suitability in the Region

For large-scale solar photovoltaic installations, the topographical considerations around Santa Teresa present both challenges and opportunities. The most suitable areas would be: The relatively flat plateaus and gentler slopes found to the north and northeast of Santa Teresa, where the terrain becomes less mountainous and more undulating. These areas offer more consistent surfaces for solar array installation without requiring extensive earthwork. Valley floors with sufficient width, particularly those oriented east-west, would provide good solar exposure throughout the day. Some agricultural valleys in the region that have already been cleared of forest cover could potentially accommodate solar infrastructure. The lower elevation areas toward the east, as the terrain descends toward the coastal plains of Espírito Santo, offer more expansive flat areas. While these locations are somewhat removed from Santa Teresa proper, they present fewer topographical constraints for large installations. Areas with southern exposure should generally be avoided due to reduced solar radiation in the Southern Hemisphere. Northern-facing slopes of moderate grade (5-15%) could actually be advantageous for solar collection in this latitude.

Topographical Constraints

It's important to note that the mountainous nature of much of the immediate surroundings of Santa Teresa does impose limitations on large-scale solar development. Steep slopes present installation challenges, increase construction costs, and can create issues with panel shading. Additionally, many of the steeper areas retain fragments of Atlantic Forest, an endangered ecosystem that would typically be prioritized for conservation rather than development. The complex topography also affects local climate conditions, with some valleys experiencing morning fog or cloud cover that could temporarily reduce solar efficiency. Higher elevation areas may experience clearer atmospheric conditions but must contend with more challenging terrain for construction and maintenance access.

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.