Almas, Tocantins, Brazil presents an excellent location for year-round solar photovoltaic energy generation. Located in the tropical region of central Brazil, this area benefits from consistent sunlight throughout most of the year, with seasonal variations characterized more by wet and dry periods rather than the dramatic temperature changes seen in temperate climates.

Solar Energy Production Potential

The solar energy output data for Almas demonstrates strong and consistent performance across all seasons. The location produces:

• 5.38 kWh per day per kW of installed capacity in Summer
• 5.97 kWh per day per kW of installed capacity in Autumn
• 6.43 kWh per day per kW of installed capacity in Winter
• 6.17 kWh per day per kW of installed capacity in Spring

Winter emerges as the optimal season for solar generation at this location, producing nearly 20% more energy than summer. This pattern is typical for locations in the Southern Hemisphere tropics, where winter months often feature clearer skies and more direct sunlight angles. Spring and autumn also show excellent production levels, making this location highly favorable for consistent year-round solar energy generation. For maximum efficiency, solar panels at this location should be installed with a fixed tilt angle of 12 degrees facing north. This relatively shallow angle is optimal for this tropical latitude and will maximize total annual energy production.

Environmental and Weather Challenges

Several local factors could potentially impact solar energy production in Almas and require careful consideration during installation planning. Seasonal Rainfall and Humidity The tropical climate brings distinct wet and dry seasons, with the wet season typically occurring during summer months. Heavy rainfall and increased cloud cover during this period contribute to the lower solar output figures observed in summer. High humidity levels can also create moisture-related challenges for solar equipment. Dust and Particulate Accumulation The dry season, while offering clearer skies, can generate significant dust and particulate matter that accumulates on solar panel surfaces. This accumulation can substantially reduce energy production by blocking sunlight from reaching the photovoltaic cells. Extreme Weather Events Tropical regions can experience intense thunderstorms, hail, and strong winds, particularly during the wet season. These weather events pose risks to solar installations and can cause physical damage to panels and mounting systems.

Preventative Measures for Optimal Performance

Several strategies can help maximize solar energy production and protect installations in Almas. Regular maintenance schedules should include frequent panel cleaning, particularly during and after the dry season when dust accumulation is highest. Installing automated cleaning systems or scheduling monthly manual cleaning can maintain optimal energy output. Proper drainage systems around solar installations are essential to manage heavy rainfall and prevent water damage to electrical components. Elevated mounting systems and waterproof electrical enclosures provide additional protection during the wet season. Robust mounting systems designed to withstand strong winds and potential hail damage are crucial. Using tempered glass panels with higher impact resistance and secure anchoring systems will help installations survive extreme weather events. Implementing monitoring systems allows for real-time tracking of energy production and quick identification of issues caused by weather or environmental factors. This enables prompt maintenance responses to maintain optimal performance 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 Almas

Seasonal solar PV output for Latitude: -11.4353, Longitude: -47.2364 (Almas, 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 12° North in Almas, Brazil

To maximize your solar PV system's energy output in Almas, Brazil (Lat/Long -11.4353, -47.2364) throughout the year, you should tilt your panels at an angle of 12° 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 Almas, 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 Almas, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 12° North tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
4° South in Summer	18° North in Autumn	27° North in Winter	6° 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 Almas, 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 Almas, 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 Almas, Brazil

Topographical Features of the Almas Region

The landscape surrounding Almas in Tocantins, Brazil is characterized by gently rolling terrain that forms part of the Brazilian Highlands plateau system. This region sits at a moderate elevation, creating undulating hills and broad valleys that stretch across the central portion of the country. The topography is relatively stable, with gradual slopes and wide expanses of open land that have been shaped by millions of years of erosion and weathering. The area features a mix of natural cerrado vegetation and converted agricultural lands, with the terrain displaying the classic characteristics of Brazil's central plateau region. Rolling hills dominate the landscape, interspersed with flatter areas that provide natural drainage patterns. The elevation changes are generally modest, creating a landscape that appears almost wave-like when viewed from elevated positions. Seasonal water courses wind through the valleys, creating natural boundaries and drainage systems that follow the contours of the land. These waterways are typically shallow and may vary significantly in flow depending on rainfall patterns. The soil composition consists primarily of lateritic formations typical of tropical highland regions, with areas of exposed bedrock appearing on some of the higher elevations.

Optimal Areas for Large-Scale Solar Development

The most promising locations for extensive solar photovoltaic installations would be the broader valley floors and gently sloping hillsides that characterize much of the region around Almas. These areas offer the dual advantages of relatively flat terrain for easier construction and maintenance access, while still providing adequate drainage to prevent water accumulation around solar infrastructure. The converted agricultural lands present particularly attractive opportunities, as much of the original vegetation has already been cleared and the land has been leveled for farming operations. These areas typically feature good road access and existing infrastructure connections, which would significantly reduce development costs for large solar installations. Areas with southern-facing slopes would be especially well-suited, as they would maximize exposure to the sun's path across the sky throughout the year. The gentle gradients found throughout the region would allow for optimal panel positioning without requiring extensive earthworks or terracing operations. The higher plateau areas, while offering excellent exposure conditions, might present some challenges due to increased wind exposure and potentially more difficult access for construction equipment. However, these elevated positions could still be viable for development, particularly where existing roads provide adequate access routes. Locations near existing transmission infrastructure would obviously be preferred, and the relatively open nature of the landscape around Almas means that multiple large-scale solar farms could potentially be developed without significant interference from topographical obstacles. The stable geological conditions and well-drained soils would provide solid foundations for mounting systems and reduce long-term maintenance concerns related to ground movement or waterlogging.

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.