Porto Velho, Rondônia, Brazil, situated at latitude -8.7678 and longitude -63.9034, offers a promising location for solar energy generation. This tropical city experiences consistent sunlight throughout the year, with seasons characterized more by wet and dry periods than temperature fluctuations.

Solar Energy Potential

The solar energy potential in Porto Velho is relatively high and stable across all seasons. Winter and spring show the highest electricity output, with 5.60 kWh/day and 5.62 kWh/day per kW of installed solar capacity, respectively. Summer and autumn have slightly lower but still significant outputs of 4.82 kWh/day and 4.89 kWh/day. This consistent year-round performance makes Porto Velho an excellent location for solar PV installations. The minimal variation between seasons ensures a reliable energy supply throughout the year, with peak production occurring during the drier winter and spring months.

Optimal Panel Tilt

For fixed panel installations in Porto Velho, Rondônia, the ideal tilt angle to maximize year-round solar production is 9 degrees North. This relatively shallow angle is due to the city's proximity to the equator, where the sun's path is more directly overhead throughout the year.

Environmental Considerations

While Porto Velho's location is generally favorable for solar energy production, there are some environmental factors to consider: 1. High humidity and rainfall: The region's tropical climate can lead to increased cloud cover and precipitation, potentially reducing solar panel efficiency. 2. Dust and particulate matter: The Amazon region can experience periods of increased airborne particles, which may accumulate on solar panels and reduce their effectiveness. To mitigate these factors, solar installations in Porto Velho should incorporate:

• Regular cleaning schedules to remove dust and debris
• High-quality, weather-resistant panels designed for tropical climates
• Proper drainage systems to prevent water accumulation

By addressing these environmental considerations, solar energy systems in Porto Velho can maintain optimal performance and take full advantage of the region's abundant solar resources.

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 Porto Velho

Seasonal solar PV output for Latitude: -8.7678, Longitude: -63.9034 (Porto Velho, 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 9° North in Porto Velho, Brazil

To maximize your solar PV system's energy output in Porto Velho, Brazil (Lat/Long -8.7678, -63.9034) throughout the year, you should tilt your panels at an angle of 9° 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 Porto Velho, 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 Porto Velho, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 9° North tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
7° South in Summer	15° North in Autumn	24° North in Winter	3° 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 Porto Velho, 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 Porto Velho, 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 Porto Velho, Brazil

Porto Velho, the capital city of Rondônia state in Brazil, is situated in a unique topographical setting. The city lies on the eastern bank of the Madeira River, a major tributary of the Amazon, in the western part of the Brazilian Amazon rainforest. The landscape around Porto Velho is characterized by a mix of flat lowlands and gently rolling hills, with elevations generally ranging from 50 to 100 meters above sea level. The immediate surroundings of Porto Velho consist of dense tropical rainforest interspersed with areas of cleared land for agriculture and urban development. The terrain is predominantly flat near the river, gradually becoming more undulating as one moves away from the water. This transition creates a diverse landscape of floodplains, terra firme (non-flooded upland forests), and occasional patches of savanna-like vegetation. To the east and southeast of Porto Velho, the terrain becomes slightly more elevated and hilly, with some areas reaching heights of up to 200 meters. These higher elevations provide a subtle contrast to the flatter regions closer to the river and city center. Despite these variations, the overall topography remains relatively uniform, without any significant mountain ranges or steep valleys in the immediate vicinity.

Potential Areas for Large-scale Solar PV

When considering areas near Porto Velho for large-scale solar photovoltaic (PV) installations, several factors come into play. The ideal locations would combine favorable topography, minimal forest cover, and proximity to existing infrastructure. The regions to the east and southeast of Porto Velho show promise for solar PV development. These areas have slightly higher elevations and less dense forest cover, which could reduce the need for extensive land clearing. The gently rolling hills in these directions provide natural drainage and may offer optimal sun exposure throughout the day. Another potential area for solar PV installations lies to the south of the city, where there are patches of cleared land and more open spaces. These areas, often used for agriculture or cattle ranching, could be repurposed for solar energy production without significant impact on the remaining forest cover. It's important to note that while the flat areas closer to the river might seem ideal for solar farms, these locations are more prone to flooding and may have higher humidity levels, which could affect the efficiency and longevity of solar panels. Therefore, the slightly elevated areas further from the river are generally more suitable for large-scale solar PV projects. Any development of solar PV in the region would need to carefully balance energy production goals with environmental conservation efforts, given the ecological importance of the Amazon rainforest. Utilizing already cleared or degraded land would be the most environmentally responsible approach to implementing large-scale solar projects in the vicinity of Porto Velho.

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.