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Flag of BrazilSolar PV Analysis of Muqui, Brazil

Graph of hourly avg kWh electricity output per kW of Solar PV installed in Muqui, Brazil (by season)

Solar Energy Potential in Muqui, Espírito Santo, Brazil

Muqui, Espírito Santo, Brazil, situated in the tropics, presents a promising location for solar energy generation throughout the year. The tropical setting provides relatively consistent sunlight patterns, with seasonal variations primarily defined by wet and dry periods rather than dramatic changes in daylight hours.

Seasonal Solar Production

The solar energy production in Muqui demonstrates good year-round potential with some seasonal fluctuation. Summer months yield the highest energy output at 6.12kWh per day for each kilowatt of installed solar capacity. This gradually decreases to 5.50kWh/day during autumn months. Winter sees the lowest production at 4.56kWh/day, before recovering to 5.13kWh/day in spring. This pattern indicates that while Muqui experiences some seasonal variation, the difference between peak summer and minimum winter production is relatively modest compared to locations at higher latitudes. The consistent tropical sunlight ensures that even during the "low" season, solar generation remains reasonably productive.

Optimal Panel Installation

For maximizing year-round solar energy production in Muqui, Espírito Santo, fixed solar panels should be tilted at 20 degrees facing North. This specific angle has been calculated to capture optimal sunlight throughout the year, accounting for the location's position in the Southern Hemisphere and the sun's seasonal path across the sky.

Environmental Considerations

Several environmental factors could potentially impact solar production in Muqui:
  • Seasonal rainfall: During the wet season, increased cloud cover and precipitation may temporarily reduce solar output. Installing panels with high-efficiency ratings that perform better in diffuse light conditions can help mitigate this issue.
  • Dust accumulation: The tropical climate can contribute to dust buildup on panels, particularly during dry seasons. Implementing a regular cleaning schedule and potentially installing automated cleaning systems can maintain optimal performance.
  • High humidity: The tropical environment's humidity can accelerate wear on electrical components. Using marine-grade materials and proper sealing for all electrical connections can extend system longevity.
  • Potential for tropical storms: Though not as severe as in coastal regions, occasional strong storms may occur. Ensuring robust mounting systems that exceed local wind-load requirements provides protection against weather events.
Despite these considerations, Muqui's location offers reliable solar potential throughout the year. With proper system design accounting for these environmental factors, solar PV installations can provide consistent renewable energy with minimal seasonal disruption.

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 Muqui

Seasonal solar PV output for Latitude: -20.915, Longitude: -41.3047 (Muqui, 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:

Summer
Average 6.12kWh/day in Summer.
Autumn
Average 5.50kWh/day in Autumn.
Winter
Average 4.56kWh/day in Winter.
Spring
Average 5.13kWh/day in Spring.

 

Ideally tilt fixed solar panels 20° North in Muqui, Brazil

To maximize your solar PV system's energy output in Muqui, Brazil (Lat/Long -20.915, -41.3047) throughout the year, you should tilt your panels at an angle of 20° 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.

The sun
At Latitude: -20.915, Longitude: -41.3047, the ideal angle to tilt panels is 20° North

Seasonally adjusted solar panel tilt angles for Muqui, 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 Muqui, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 20° 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

Assuming you can modify the tilt angle of your solar PV panels throughout the year, you can optimize your solar generation in Muqui, Brazil as follows: In Summer, set the angle of your panels to 5° facing North. In Autumn, tilt panels to 26° facing North for maximum generation. During Winter, adjust your solar panels to a 36° angle towards the North for optimal energy production. Lastly, in Spring, position your panels at a 15° angle facing North to capture the most solar energy in Muqui, Brazil.

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 Muqui, 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 Muqui, 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.






Please enter information above to calculate panel spacing.

Topography for solar PV around Muqui, Brazil

The region surrounding Muqui, situated in the southeastern state of Espírito Santo, Brazil, presents a diverse and complex topographical landscape characteristic of Brazil's Atlantic coastal highlands. The area features a predominantly mountainous terrain with significant elevation variations, creating a rugged profile that transitions between steep hillsides, undulating plateaus, and narrow valleys. Muqui itself sits within a valley surrounded by mountains that form part of the Serra do Mar mountain range, which runs parallel to Brazil's southeastern coastline. The elevation in the immediate vicinity of Muqui typically ranges between 250 to 500 meters above sea level, while the surrounding peaks can reach heights exceeding 800 meters. This varied relief creates distinctive microclimates throughout the region.

Topographical Features

The landscape is characterized by rounded hilltops and ridges, a result of millions of years of erosion on the ancient Brazilian shield. Numerous streams and small rivers cut through the terrain, forming a dendritic drainage pattern that eventually feeds into larger river systems. The Itapemirim River basin influences much of the local hydrology. Dense vegetation still covers portions of the hillsides, though much has been cleared for agricultural purposes over centuries of settlement. Coffee plantations and pastureland occupy many of the gentler slopes and valley bottoms, while steeper areas often retain more natural forest cover. Soil composition varies across the region, with red-yellow latosols predominating - these are typically deep, well-drained soils that have developed under tropical conditions. However, soil quality and depth can change dramatically over short distances due to the varied topography.

Solar PV Potential Areas

For large-scale solar photovoltaic development, several areas near Muqui present favorable conditions. The most suitable locations would be: The elevated plateaus to the west and northwest of Muqui offer relatively flat terrain at higher elevations. These areas benefit from reduced atmospheric interference and fewer obstructions to incoming solar radiation. The plateaus between Muqui and neighboring Mimoso do Sul provide extensive open spaces with favorable aspect (the direction the land faces). Gently sloping hillsides with northern exposure (in the southern hemisphere, north-facing slopes receive more direct sunlight) represent another optimal choice. Several such areas can be found within 15-20 kilometers of Muqui, particularly in the transition zones between the mountains and valleys. The broader valleys to the southeast, where the terrain flattens considerably as it approaches the coastal plains, offer extensive areas with minimal shading from surrounding topography. Though slightly lower in elevation, these areas provide the large continuous tracts of land necessary for industrial-scale solar installations. Areas to avoid would include the deeply incised valleys, especially those with eastern and western orientations that experience significant shading during morning and afternoon periods. Similarly, south-facing slopes receive considerably less direct solar radiation in this hemisphere and would yield substantially lower energy production. The ideal solar PV locations would balance several factors: adequate distance from the most densely forested areas to minimize clearing requirements, proximity to existing transmission infrastructure, suitable ground stability for mounting systems, and minimal flood risk. Several abandoned or underutilized agricultural areas that meet these criteria can be found within the region, particularly in the transitional zones between the highlands and lowlands.

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!

Citation Guide

Article Details for Citation

Article: Solar PV Analysis of Muqui, Brazil
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Sunday 29th of June 2025
Last Updated: Monday 21st of July 2025

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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.

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