Janjanbureh, Central River, Gambia, located at 13.5371°N, -14.7666°W, offers a promising environment for solar energy generation throughout the year. This tropical location benefits from consistent sunlight, with seasons primarily distinguished by wet and dry periods rather than significant temperature variations.

Seasonal Solar Performance

Solar PV systems in Janjanbureh demonstrate robust performance across all seasons. Spring stands out as the most productive period, with an impressive 7.54 kWh/day per kW of installed capacity. Summer and autumn maintain steady outputs of 6.24 kWh/day and 5.92 kWh/day, respectively. Even during winter, the region sustains a respectable 5.92 kWh/day, highlighting the location's year-round solar potential.

Optimal Panel Positioning

For fixed-panel installations in Janjanbureh, Central River, the ideal tilt angle to maximize year-round solar production is 13 degrees facing South. This orientation ensures optimal sunlight capture throughout the year, accounting for the Earth's elliptical orbit and the location's specific latitude.

Environmental Considerations

While Janjanbureh's climate is generally favorable for solar energy production, there are a few environmental factors to consider:

• Dust and sand: The region's dry seasons can lead to dust accumulation on panels, potentially reducing efficiency.
• Rainy season: Heavy rains during the wet season may temporarily decrease solar output.

To mitigate these issues, regular panel cleaning and maintenance should be implemented. Additionally, installing panels at the recommended 13-degree tilt can help with natural cleaning during rainfall.

Conclusion

Janjanbureh presents an excellent location for solar PV installations, with consistent and substantial energy production potential throughout the year. The region's tropical climate, coupled with proper panel positioning and maintenance, creates an ideal environment for harnessing solar energy efficiently.

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 3 locations across Gambia. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.

Link: Solar PV potential in Gambia by location

Solar output per kW of installed solar PV by season in Janjanbureh

Seasonal solar PV output for Latitude: 13.5371, Longitude: -14.7666 (Janjanbureh, Gambia), 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 13° South in Janjanbureh, Gambia

To maximize your solar PV system's energy output in Janjanbureh, Gambia (Lat/Long 13.5371, -14.7666) throughout the year, you should tilt your panels at an angle of 13° South 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 Janjanbureh, Gambia

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 Janjanbureh, Gambia. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 13° South tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
3° North in Summer	19° South in Autumn	29° South in Winter	7° 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 Janjanbureh, Gambia

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 Janjanbureh, Gambia.

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 Janjanbureh, Gambia

The topography around Janjanbureh, Gambia, is characterized by a relatively flat landscape with gentle undulations. This area is situated along the Gambia River, which meanders through the region, creating a lush riverine environment. The terrain is predominantly composed of low-lying plains and floodplains, with occasional small hills and elevated areas scattered throughout the vicinity. The region surrounding Janjanbureh is part of the Gambia's interior, known as the Central River Division. The landscape is a mix of savanna grasslands, wooded areas, and agricultural fields. The soil is generally fertile, supporting various crops and vegetation. During the rainy season, some low-lying areas may experience flooding, while the dry season can lead to parched conditions in parts of the landscape.

Solar PV Potential

When considering areas nearby that would be most suited to large-scale solar PV installations, several factors come into play. The flat terrain in much of the region surrounding Janjanbureh is advantageous for solar farm development, as it minimizes the need for extensive land preparation and allows for efficient panel layout. Areas slightly elevated from the immediate vicinity of the Gambia River would be preferable to avoid potential flooding risks. The savanna grasslands, which receive ample sunlight throughout the year, could be ideal locations for solar PV projects. These open spaces often have fewer obstacles that might cast shadows on solar panels, maximizing energy generation potential. It's important to note that while selecting sites for solar installations, care should be taken to avoid prime agricultural land and areas of ecological importance. Ideally, solar farms would be situated on marginal lands that are not crucial for food production or wildlife habitats. The region's proximity to the river could also be beneficial for solar PV development, as water access is often necessary for panel cleaning and maintenance. However, any chosen sites should be at a safe distance from the river to prevent erosion and potential damage during high water periods. In conclusion, the areas most suited for large-scale solar PV near Janjanbureh would likely be the open, slightly elevated grasslands away from the immediate riverbanks, agricultural zones, and densely wooded areas. These locations would offer the best combination of flat terrain, good sun exposure, and minimal environmental impact.

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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.