Centro do Guilherme, Brazil offers excellent conditions for year-round solar photovoltaic energy generation. Located in the tropics at coordinates -2.2807, -46.0735, this region benefits from consistent sunlight throughout most of the year, with seasons characterized more by wet and dry periods rather than significant temperature variations.

Solar Energy Output Performance

The solar energy production at this location shows remarkably consistent performance across all seasons. Summer generates 5.20 kWh per day per kW of installed solar capacity, while autumn produces slightly more at 5.34 kWh per day per kW. Winter and spring are the most productive seasons, delivering 5.75 kWh and 5.79 kWh per day per kW respectively. This makes winter and spring the ideal times for solar energy generation at Centro do Guilherme. The relatively small variation between seasons - with only about 11% difference between the lowest and highest production periods - demonstrates the location's reliability for consistent solar power generation throughout the year.

Optimal Panel Installation

For maximum year-round solar production, fixed solar panels should be tilted at 3 degrees toward the north. This optimal angle is calculated by analyzing daily solar elevation angles at this latitude, determining daily optimal panel tilts, and weighting these angles by daily photovoltaic potential using solar irradiance data while accounting for Earth's elliptical orbit.

Environmental and Weather Challenges

Several local factors could potentially impact solar energy production at this tropical location:

• Heavy rainfall during wet season: Intense tropical downpours can reduce solar irradiance and create water accumulation issues
• High humidity levels: Persistent moisture can affect electrical components and reduce panel efficiency
• Dust and vegetation growth: The tropical climate promotes rapid plant growth and dust accumulation on panels
• Extreme heat: High temperatures can reduce photovoltaic cell efficiency

Preventative Measures for Optimal Performance

To maximize solar energy production despite these challenges, several installation strategies should be implemented: Proper drainage systems around solar installations prevent water pooling during heavy rains. Installing panels with adequate spacing and ventilation helps combat efficiency losses from extreme heat by allowing air circulation for cooling. Regular cleaning schedules become essential in this environment to remove dust, debris, and organic matter that can accumulate quickly. Using sealed, weatherproof electrical components and junction boxes protects against humidity damage. Vegetation management around the solar installation site prevents shading issues and reduces the risk of plant matter accumulating on panels. Anti-reflective coatings on panels can help maintain efficiency even when some dust accumulation occurs between cleaning cycles. Despite these environmental considerations, Centro do Guilherme remains an excellent location for solar energy generation due to its consistent tropical sunlight and relatively stable seasonal production patterns.

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 Centro Do Guilherme

Seasonal solar PV output for Latitude: -2.2807, Longitude: -46.0735 (Centro Do Guilherme, 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 3° North in Centro Do Guilherme, Brazil

To maximize your solar PV system's energy output in Centro Do Guilherme, Brazil (Lat/Long -2.2807, -46.0735) throughout the year, you should tilt your panels at an angle of 3° 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 Centro Do Guilherme, 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 Centro Do Guilherme, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 3° North tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
14° South in Summer	9° North in Autumn	18° North in Winter	4° South 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 Centro Do Guilherme, 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 Centro Do Guilherme, 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 Centro Do Guilherme, Brazil

Topographical Features of Centro do Guilherme

Centro do Guilherme sits within the northeastern region of Maranhão state, positioned in Brazil's expansive lowland plains that characterize much of the Amazon basin's southern periphery. The terrain surrounding this municipality consists predominantly of gently rolling hills and flat to moderately undulating countryside, with elevations typically ranging from 100 to 300 meters above sea level. The landscape represents a transitional zone between the Amazon rainforest to the west and the semi-arid caatinga vegetation of Brazil's interior northeast. The region features a mix of natural cerrado savanna and areas that have been converted to agricultural use, particularly for soybean cultivation and cattle ranching. Small streams and seasonal watercourses meander through the terrain, creating subtle valleys and drainage patterns that add gentle variation to the otherwise relatively uniform topography. The soil composition consists largely of lateritic formations typical of tropical regions, with good drainage characteristics in most areas.

Optimal Areas for Large-Scale Solar Development

The most promising locations for substantial solar photovoltaic installations lie in the flatter agricultural zones to the south and southeast of Centro do Guilherme's urban center. These areas offer several advantages including minimal slope variations that reduce grading and foundation costs, existing road access developed for agricultural operations, and proximity to electrical transmission infrastructure that serves the regional farming communities. The cleared pasturelands extending eastward toward the neighboring municipality of Açailândia present particularly attractive opportunities. These zones combine favorable topographical conditions with established land use patterns that would facilitate large-scale development. The terrain in these areas exhibits gentle slopes of less than five percent grade across extensive areas, ideal for solar panel installation and maintenance access. Areas immediately north of the town center, while relatively flat, contain more fragmented land parcels and denser vegetation that would require additional clearing. The western approaches toward the Tocantins River basin become progressively more forested and environmentally sensitive, making them less suitable for major solar developments despite favorable topographical conditions. The southeastern corridor along existing highway infrastructure offers the best combination of suitable terrain, land availability, and logistical access. This zone benefits from established transportation networks essential for construction equipment and ongoing maintenance operations, while maintaining the flat to gently rolling characteristics optimal for solar array deployment across large contiguous 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.