Solar Energy Potential in Alegre, Espírito Santo, Brazil

Alegre, Espírito Santo, Brazil, located at latitude -20.71 and longitude -41.5118, offers promising conditions for solar energy generation throughout the year. This tropical location benefits from relatively consistent sunlight patterns, with seasons defined more by rainfall variations than temperature extremes. The solar energy production potential varies across the meteorological seasons. Summer provides the highest yield at 6.12kWh per day for each kilowatt of installed capacity. Autumn follows with a respectable 5.50kWh/day, while spring delivers 5.13kWh/day. Winter, while still productive, shows the lowest output at 4.56kWh/day per kilowatt installed. For those considering solar installations in Alegre, Espírito Santo, it's worth noting that the ideal tilt angle for fixed solar panels is 19 degrees facing North. This specific angle has been calculated to maximize year-round energy production, taking into account the location's position in the Southern Hemisphere and seasonal solar patterns.

Environmental and Weather Considerations

Several factors may affect solar production in Alegre that potential installers should consider:

• Heavy rainfall during the wet season (typically summer months) may temporarily reduce solar output and require more frequent panel cleaning.
• Dust accumulation, particularly during dry periods, can diminish panel efficiency if not regularly maintained.
• Potential cloud cover during the rainy season can create intermittent production patterns.

To mitigate these challenges, solar installations in Alegre should incorporate several preventative measures. Installing panels with self-cleaning technologies or hydrophobic coatings can reduce maintenance needs. Implementing an automated cleaning system or regular maintenance schedule will help maintain optimal efficiency. Additionally, using microinverters or power optimizers can minimize production losses during partial shading conditions that might occur during cloudier periods. Despite these considerations, Alegre's year-round production values indicate it remains a favorable location for solar PV installations, with even the lowest-producing winter months delivering substantial energy output.

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 Alegre

Seasonal solar PV output for Latitude: -20.71, Longitude: -41.5118 (Alegre, 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 Alegre, Brazil

To maximize your solar PV system's energy output in Alegre, Brazil (Lat/Long -20.71, -41.5118) 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 Alegre, 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 Alegre, 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 Alegre, 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 Alegre, 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 Alegre, Brazil

The topography around Alegre, Brazil presents a varied landscape characterized by undulating hills, valleys, and mountainous terrain typical of the Atlantic Forest region in the state of Espírito Santo. Situated in the southern portion of the state, Alegre is nestled within the Caparaó mountain range, which contributes to its distinctive topographical features. The region exhibits significant elevation changes, with altitudes ranging from approximately 100 meters in the river valleys to over 800 meters in the surrounding highlands. This varied relief creates a mosaic of slopes with different orientations and gradients. The Itapemirim River and its tributaries have carved valleys throughout the area, creating natural drainage systems that define much of the local topography.

Surrounding Landscape Features

To the west of Alegre, the terrain becomes increasingly mountainous as it approaches the border with Minas Gerais state, eventually reaching the impressive Caparaó National Park where Pico da Bandeira, the third-highest mountain in Brazil, is located. This western zone features steeper slopes and higher average elevations. The eastern portions of the region gradually descend toward the coastal plains of Espírito Santo, with gentler hills and broader valleys becoming more common. The north and south present intermediate terrain with rolling hills interspersed with occasional steeper formations. Vegetation cover varies with elevation and human activity, with remnants of Atlantic Forest occupying higher elevations and steeper slopes, while agricultural lands predominate in gentler terrain and valleys. This mosaic of natural and modified landscapes reflects centuries of human settlement and land use changes.

Optimal Areas for Solar PV Development

For large-scale solar photovoltaic installations, the most suitable areas near Alegre would be found primarily in the lower-elevation regions with minimal shading from surrounding terrain. The gently sloping hills to the east and northeast of Alegre present promising opportunities, where the terrain is less rugged while still offering good exposure to solar radiation. Specifically, the plateaus and gradual slopes between Alegre and the municipalities of Jerônimo Monteiro and Cachoeiro de Itapemirim offer favorable topographical conditions. These areas feature elevation ranges between 100-400 meters with predominantly north-facing aspects (in the Southern Hemisphere, north-facing slopes receive more direct sunlight). The river valleys, particularly along the wider sections of the Itapemirim River basin, also provide relatively flat terrain suitable for large installations, though potential flooding risks would need assessment. These lowland areas benefit from reduced fog compared to higher elevations, which can occasionally experience morning mist that might temporarily reduce solar exposure. Areas to avoid would include the steeper western slopes approaching the Caparaó range, where terrain complexity creates challenges for installation and maintenance of solar infrastructure. Similarly, densely forested areas on steeper slopes would require significant clearing, raising environmental concerns and potentially facing regulatory hurdles. The southeastern portions of the region, where the landscape transitions to gentler topography with good drainage and reduced risk of flooding, combine favorable terrain with excellent solar exposure conditions. These areas often feature agricultural lands that might be suitable for dual-use solar installations or conversion to energy production.

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.