Solar Energy Potential in Jaru, Rondônia, Brazil

Jaru, Rondônia, Brazil, located in the tropics at coordinates -10.4395, -62.4683, offers excellent year-round potential for solar energy generation. The tropical location provides consistent sunlight throughout most of the year, with the climate characterized more by wet and dry seasons rather than the four traditional seasons experienced in temperate regions. The solar energy production potential in Jaru remains strong across all meteorological seasons. During summer, each kilowatt of installed solar capacity generates approximately 5.07 kWh per day. This output increases slightly in autumn to 5.22 kWh per day. Winter actually provides the highest solar production at 5.76 kWh per day, followed closely by spring with 5.73 kWh per day. Interestingly, winter and spring are the optimal periods for solar energy generation in Jaru, Rondônia, with production approximately 13% higher than during summer. This pattern differs from many non-tropical regions where summer typically yields the highest solar output.

Optimal Panel Installation

For a fixed panel installation in Jaru, Rondônia, the ideal angle to maximize year-round production is 11 degrees tilted toward the North. This specific angle has been calculated by analyzing the daily solar elevation angles at this latitude, weighted by the solar irradiance potential throughout the year, and accounting for Earth's elliptical orbit.

Environmental Considerations

Despite Jaru's favorable solar conditions, there are some environmental factors that could potentially impact solar production:

• Heavy rainfall during the wet season may temporarily reduce solar efficiency due to cloud cover and direct rainfall on panels.
• High humidity levels can create a thin film of moisture on panels, slightly reducing their effectiveness.
• Dust accumulation during the dry season can gradually decrease panel efficiency if not addressed.

Preventative Measures

To maximize solar production in Jaru despite these challenges, several preventative measures can be implemented: Installing panels with self-cleaning capabilities or applying hydrophobic coatings can help manage both dust and rainfall issues. Regular maintenance schedules should be established, with more frequent cleaning during the dry season to remove dust accumulation. Using microinverters or power optimizers can help mitigate partial shading issues that might occur during cloudy periods of the wet season. Additionally, designing the system with a slight overcapacity can help ensure adequate energy production even during less ideal conditions. The consistent year-round solar radiation in Jaru makes it an excellent location for solar PV installations, with proper planning and maintenance to address the typical tropical climate challenges.

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 Jaru

Seasonal solar PV output for Latitude: -10.4395, Longitude: -62.4683 (Jaru, 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 11° North in Jaru, Brazil

To maximize your solar PV system's energy output in Jaru, Brazil (Lat/Long -10.4395, -62.4683) throughout the year, you should tilt your panels at an angle of 11° 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 Jaru, 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 Jaru, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 11° North tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
6° South in Summer	17° North in Autumn	26° North in Winter	5° 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 Jaru, 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 Jaru, 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 Jaru, Brazil

The region surrounding Jaru, Brazil, located at coordinates -10.4395, -62.4683 in the state of Rondônia, features a diverse topographical landscape characteristic of the western Amazon Basin's transition zone. The terrain is predominantly characterized by gently rolling hills and plateaus that gradually descend from the Brazilian Shield toward the Amazon lowlands. Elevation in this area typically ranges between 150 to 250 meters above sea level, creating a moderately undulating landscape rather than steep mountainous terrain. Jaru sits within the watershed of the Ji-Paraná River (also known as the Machado River), a significant tributary of the Madeira River. This hydrological feature has shaped the local topography through erosional processes, creating natural valleys and floodplains. The area exhibits a pattern of higher elevated plateaus interspersed with lower-lying river valleys, forming a network of natural drainage systems throughout the region.

Vegetation and Land Cover

The natural vegetation around Jaru consists primarily of tropical rainforest, though significant portions have undergone transformation due to human activities. The original dense forest coverage has been partially cleared for agricultural development, cattle ranching, and urban expansion. This anthropogenic modification has created a mosaic landscape where patches of forest alternate with cleared areas, pastures, and agricultural fields. The soil composition varies across the region but generally consists of weathered, acidic soils typical of tropical environments. These soils have undergone intense leaching due to the region's substantial rainfall, resulting in relatively poor nutrient content in many areas unless actively managed for agriculture.

Solar PV Suitability

For large-scale solar photovoltaic development, the most suitable areas near Jaru would be the cleared plateaus and gently sloping terrain that offer several advantageous characteristics. The ideal locations possess the following attributes: The elevated plateaus to the east and southeast of Jaru present particularly favorable conditions for solar PV installation. These areas benefit from stable geological foundations and reduced flooding risk compared to the lower-lying river valleys. The slightly higher elevation also potentially reduces fog and humidity effects that can impact solar efficiency. Areas that have already been cleared for cattle ranching or agriculture represent prime candidates for solar development, as they minimize the need for additional deforestation and the associated environmental impacts. These locations typically offer good accessibility via existing road networks, facilitating construction and maintenance operations. The northwestern sectors of the municipality, where the terrain flattens more consistently, provide excellent opportunities for large contiguous solar arrays. These areas allow for more efficient panel arrangement and simplified construction logistics compared to more undulating terrain. Locations with minimal shade from remaining forest fragments and with southern exposure (in the Southern Hemisphere) maximize solar capture potential. The gentle slopes facing north-northeast in this region can actually enhance solar collection efficiency compared to perfectly flat terrain. It's worth noting that while the Ji-Paraná River valley offers flat terrain, these lowland areas face higher flooding risks during the rainy season and may experience increased humidity and cloud cover, potentially reducing their suitability for solar PV development compared to the slightly elevated plateaus.

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.