Buchanan, Grand Bassa County, Liberia, situated at latitude 5.8797 and longitude -10.0547, presents a favorable location for solar energy generation throughout the year. This tropical city experiences consistent sunlight, with seasons primarily characterized by wet and dry periods rather than temperature variations.

Year-round Solar Potential

The solar energy output in Buchanan remains relatively stable across all seasons, with slight variations. Spring emerges as the most productive season, yielding an average of 5.35 kWh per day for each kilowatt of installed solar capacity. Autumn follows closely with 5.24 kWh/day, while winter produces 5.07 kWh/day. Summer, interestingly, shows the lowest output at 4.67 kWh/day, though still maintaining a substantial energy generation potential.

Optimal Panel Positioning

For fixed solar panel installations in Buchanan, Grand Bassa County, the ideal tilt angle to maximize year-round energy production is 6 degrees facing South. This slight tilt helps optimize the panels' exposure to sunlight throughout the year, accounting for the city's proximity to the equator and the Earth's elliptical orbit.

Environmental Considerations

While Buchanan's location is generally favorable for solar energy production, there are some environmental factors to consider: 1. Rainfall: Liberia experiences a pronounced rainy season, typically from May to October. Heavy rainfall can temporarily reduce solar panel efficiency. 2. Humidity: The tropical climate brings high humidity levels, which may lead to increased dust accumulation on panels. To mitigate these factors, consider implementing the following measures:

Preventative Measures

1. Install panels at the recommended 6-degree tilt to facilitate natural cleaning during rainfall. 2. Use self-cleaning solar panels or implement regular cleaning schedules. 3. Ensure proper sealing and insulation of electrical components to protect against humidity. 4. Consider microinverter systems to minimize the impact of partial shading from cloud cover. By addressing these environmental factors, solar installations in Buchanan can maintain high efficiency and capitalize on the location's excellent year-round solar potential.

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

Link: Solar PV potential in Liberia by location

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

Seasonal solar PV output for Latitude: 5.8797, Longitude: -10.0547 (Buchanan, Liberia), 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 6° South in Buchanan, Liberia

To maximize your solar PV system's energy output in Buchanan, Liberia (Lat/Long 5.8797, -10.0547) throughout the year, you should tilt your panels at an angle of 6° 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 Buchanan, Liberia

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 Buchanan, Liberia. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 6° South tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
10° North in Summer	12° South in Autumn	22° South in Winter	1° 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 Buchanan, Liberia

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 Buchanan, Liberia.

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 Buchanan, Liberia

The topography around Buchanan, Liberia, is characterized by a diverse landscape that transitions from coastal lowlands to gently rolling hills as one moves inland. Situated on the Atlantic coast, Buchanan itself is relatively flat, with sandy beaches and coastal plains dominating the immediate vicinity. The coastline is punctuated by lagoons and estuaries, creating a dynamic interface between land and sea. As you move away from the coast, the terrain gradually becomes more undulating. Low-lying hills and small valleys begin to emerge, creating a mosaic of gentle slopes and flat areas. This transitional zone is often covered in tropical vegetation, including patches of rainforest and secondary growth. The elevation gradually increases as you progress further inland, but the rise is generally gradual rather than abrupt. Rivers and streams crisscross the landscape, with the Benson River being a notable feature near Buchanan. These waterways have carved shallow valleys and floodplains over time, contributing to the area's varied topography. The soil in this region is typically a mix of sandy and loamy compositions, influenced by the coastal proximity and the weathering of underlying rock formations.

Suitability for Large-Scale Solar PV

When considering areas near Buchanan for large-scale solar PV installations, several factors come into play. The most suitable locations would be those that combine favorable topography with practical considerations for construction and energy distribution. The gently rolling hills inland from Buchanan offer promising potential for solar PV development. These areas provide slightly elevated ground with minimal shading from surrounding landscape features. The gradual slopes can be advantageous for optimal panel orientation and can facilitate natural drainage, reducing the risk of flooding during heavy rains. Cleared areas or former agricultural lands a few kilometers inland from the coast could be ideal. These locations often have reduced vegetation cover, minimizing the need for extensive land clearing. They also tend to be closer to existing infrastructure, which can be crucial for connecting to the power grid and accessing the site for construction and maintenance. It's important to avoid low-lying areas near rivers or in flood-prone zones, as these could pose risks to the solar infrastructure. Similarly, areas with dense forest cover would require significant clearing, which may not be environmentally or economically desirable. The coastal plains, while flat and seemingly suitable, may not be the best choice due to potential salt spray from the ocean, which can corrode solar equipment over time. Additionally, these areas might be more valuable for other uses, such as agriculture or urban development. Ultimately, the most suitable areas for large-scale solar PV near Buchanan would likely be found in the transitional zone between the coastal lowlands and the more pronounced hills further inland. These areas offer a balance of favorable topography, reduced environmental impact, and practical accessibility for development and maintenance of solar infrastructure.

Citation Guide

Article Details for Citation

Tell Us About Your Work

We love seeing how our research helps others! If you've cited this article in your work, we'd be delighted to hear about it. Drop us a line via our Contact Us page or on X, to share where you've used our information - we may feature a link to your work on our site. This helps create a network of valuable resources for others in the solar energy community and helps us understand how our research is contributing to the field. Plus, we occasionally highlight exceptional works that reference our research on our social media channels.

Feeling generous?

Share this with your friends!

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.