Imbituba, Santa Catarina, Brazil, located at latitude -28.1873 and longitude -48.7093 in the Southern Sub Tropics, offers varying potential for solar energy generation throughout the year. The location experiences seasonal fluctuations in solar electricity production that follow a predictable pattern.

Seasonal Solar Production

Solar panels in Imbituba generate their highest output during summer, producing an average of 6.59 kWh per day for each kilowatt of installed capacity. Spring follows as the second most productive season with 5.43 kWh/day, while autumn yields a moderate 4.50 kWh/day. Winter represents the least productive period, generating only 3.32 kWh/day per installed kilowatt.

This seasonal pattern means Imbituba's solar potential peaks during the Southern Hemisphere summer months (December through February) and remains relatively strong through spring. The significant drop in winter production suggests that supplementary power sources might be valuable during June through August for systems that need consistent year-round output.

Optimal Panel Installation

For fixed solar panel installations in Imbituba, Santa Catarina, the ideal tilt angle to maximize year-round energy production is 25 degrees facing North. This angle optimizes the annual solar harvest by balancing seasonal variations in the sun's position throughout the year.

Environmental Considerations

Several environmental factors could impact solar production in Imbituba:

• Coastal salt spray can gradually corrode solar equipment and reduce efficiency, as Imbituba is located on Brazil's Atlantic coast. Using marine-grade components and regular cleaning can mitigate this issue.
• Occasional tropical storms during summer months may temporarily reduce production. Installing sturdy mounting systems rated for high wind conditions can prevent physical damage.
• Morning fog or mist from the ocean can delay peak production hours. Positioning panels to maximize afternoon sun exposure can help compensate for this effect.

Despite these considerations, Imbituba's location offers good year-round solar potential with proper system design. The significant difference between summer and winter production (nearly double) suggests that oversizing systems to meet winter needs or incorporating energy storage solutions would be beneficial for year-round energy independence.

Note: The Southern Sub Tropics extend from -23.5° latitude South down to -35° latitude.

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 Imbituba

Seasonal solar PV output for Latitude: -28.1873, Longitude: -48.7093 (Imbituba, 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 25° North in Imbituba, Brazil

To maximize your solar PV system's energy output in Imbituba, Brazil (Lat/Long -28.1873, -48.7093) throughout the year, you should tilt your panels at an angle of 25° 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 Imbituba, 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 Imbituba, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 25° North tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
12° North in Summer	34° North in Autumn	44° North in Winter	21° 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 Imbituba, 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 Imbituba, 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 Imbituba, Brazil

The topography around Imbituba, Brazil presents a diverse landscape characterized by coastal plains, rolling hills, lagoons, and mountainous areas further inland. Located in the state of Santa Catarina along Brazil's southern Atlantic coast, Imbituba sits at the transition between the narrow coastal plain and the foothills of the Serra do Mar mountain range. The immediate coastal area features relatively flat sandy terrain with beaches, dunes, and small elevations. Moving slightly inland, the landscape begins to undulate with gentle hills typically ranging from 20 to 100 meters above sea level. These rolling formations gradually increase in elevation as one travels westward from the coast.

Coastal Features

The coastline itself is marked by several bays, headlands, and sandy beaches. Notable topographical features include the Ibiraquera Lagoon to the north and the larger Mirim Lagoon complex to the south. These water bodies are separated from the Atlantic Ocean by narrow strips of land, creating a distinctive coastal ecosystem.

Inland Topography

As distance from the coast increases, the terrain becomes more pronounced with higher hills and eventually transitions into the more significant elevations of the Serra do Mar mountain range approximately 30-40 kilometers inland. This mountain range forms part of the Great Escarpment that runs along much of Brazil's southeastern coastline, with peaks in the broader region reaching heights of 1,000 meters or more. The vegetation naturally follows this topographical gradient, with coastal vegetation near the ocean giving way to Atlantic Forest remnants on the hillsides and denser forest coverage in the mountainous areas.

Optimal Areas for Solar PV Development

For large-scale solar photovoltaic installations, several areas around Imbituba offer favorable conditions based on topographical considerations: The gently rolling plains located 5-15 kilometers inland from the coast present perhaps the most suitable terrain for extensive solar arrays. These areas combine relatively flat or moderately sloped land with good solar exposure and minimal shadowing effects from mountains. The elevation is sufficient to avoid coastal fog and salt spray that might affect equipment durability. The elevated plateaus found in the transition zone between the coastal plain and the steeper mountain slopes also offer promising sites. These locations typically feature stable ground conditions and favorable orientation toward the sun's path. Areas to the north and south of Imbituba along the coastal plain, particularly where agricultural land has already been developed, provide flat terrain that would require minimal grading for installation. These zones typically have good road access for construction and maintenance purposes. The hillsides with northern exposure (which in the Southern Hemisphere receives more direct sunlight) could accommodate terraced solar installations, though with higher construction costs than flatter areas. It's worth noting that while the mountainous areas further inland receive good solar radiation, the steep slopes, complex terrain, and remaining forest coverage make these areas less practical for large-scale solar development from both economic and environmental perspectives. The most optimal zones combine moderate elevation (20-150 meters above sea level), gentle slopes (less than 10% gradient), northern or northeastern exposure, proximity to existing transmission infrastructure, and areas already cleared of native vegetation. Such conditions are most commonly found in the transitional zones between the immediate coastal plain and the more pronounced hill country beginning 8-15 kilometers inland.

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.