Solar Energy Potential in Byblos, Lebanon
Byblos, Lebanon, situated at 34.1167°N, 35.65°E, offers a promising location for solar energy generation. This ancient Phoenician city in the Northern Sub Tropics experiences varying levels of solar potential throughout the year, with distinct seasonal patterns. Summer stands out as the most productive season for solar energy in Byblos. With an impressive output of 8.40 kWh per day for each kilowatt of installed solar capacity, this season presents ideal conditions for maximum energy generation. The long, sunny days and minimal cloud cover contribute to this high yield. Spring follows as the second-most productive season, delivering 6.92 kWh per day per kW of installed capacity. As temperatures rise and daylight hours increase, solar panels can capture significant amounts of energy during this period. Autumn sees a moderate decrease in solar potential, with an average daily output of 5.06 kWh per kW. While still providing a reasonable amount of energy, the shorter days and potential increase in cloud cover begin to affect production. Winter presents the greatest challenge for solar energy generation in Byblos, with an average daily output of 3.25 kWh per kW. The shorter days, lower sun angle, and increased likelihood of overcast skies contribute to this reduced output.Optimizing Solar Panel Installation
To maximize year-round solar energy production in Byblos, fixed solar panels should be installed at a tilt angle of 29 degrees facing south. This optimal angle ensures the panels can capture the most sunlight throughout the year, accounting for seasonal variations in the sun's position.Environmental Considerations
While Byblos generally offers favorable conditions for solar energy production, there are some environmental factors to consider: 1. Dust and sand: Given its coastal location, Byblos may experience occasional sandstorms or accumulation of dust on solar panels, which can reduce efficiency. 2. Salt spray: Proximity to the Mediterranean Sea may lead to salt deposits on panels, potentially affecting performance. To mitigate these issues, regular cleaning and maintenance of solar panels is crucial. Additionally, installing panels with protective coatings and ensuring proper sealing of electrical components can help safeguard against salt corrosion and dust accumulation. In conclusion, Byblos presents a viable location for solar energy production, with summer and spring offering the most favorable conditions. By optimizing panel placement and addressing potential environmental challenges, solar installations in this historic city can harness significant renewable energy throughout the year.Note: The Northern Sub Tropics extend from 23.5° latitude North up to 35° latitude.
So far, we have conducted calculations to evaluate the solar photovoltaic (PV) potential in 22 locations across Lebanon. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.
Link: Solar PV potential in Lebanon by location
Solar output per kW of installed solar PV by season in Byblos
Seasonal solar PV output for Latitude: 34.1167, Longitude: 35.65 (Byblos, Lebanon), 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 29° South in Byblos, Lebanon
To maximize your solar PV system's energy output in Byblos, Lebanon (Lat/Long 34.1167, 35.65) throughout the year, you should tilt your panels at an angle of 29° 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 Byblos, Lebanon
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 Byblos, Lebanon. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 29° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 18° South in Summer | 38° South in Autumn | 49° South in Winter | 26° 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 Byblos, Lebanon
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 Byblos, Lebanon.
Our calculation method
- Solar Position:
We determine the Sun's position on the Winter solstice using the location's latitude and solar declination. - Shadow Projection:
We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle. - 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 Byblos, Lebanon
The topography around Byblos, Lebanon, is quite diverse and interesting. Byblos itself is situated on the Mediterranean coast, with the city center located on a small peninsula jutting out into the sea. The immediate coastal area is relatively flat, with sandy beaches and rocky outcrops along the shoreline.
Moving inland from the coast, the terrain begins to rise gradually. The landscape transitions into gently rolling hills covered with Mediterranean vegetation, including olive groves and pine forests. These hills become progressively steeper and more rugged as you move further east, eventually giving way to the western slopes of the Lebanon Mountains.
The Lebanon Mountains, also known as the Mount Lebanon range, form a dramatic backdrop to the coastal region. These mountains rise steeply, with some peaks reaching heights of over 2,000 meters (6,560 feet) above sea level. The mountain slopes are characterized by deep valleys, rocky outcrops, and terraced hillsides that have been cultivated for centuries.
Regarding areas suitable for large-scale solar PV (photovoltaic) installations, the most promising locations would be in the inland regions, away from the densely populated coastal areas. The gently rolling hills and plateaus found between the coast and the steeper mountain slopes offer several advantages for solar energy production:
1. These areas receive ample sunlight throughout the year, with fewer obstructions from tall buildings or mountains that could cast shadows.
2. The terrain is relatively flat or has gentle slopes, making it easier and more cost-effective to install large arrays of solar panels.
3. These locations are typically less developed and have lower population density, providing more available land for expansive solar farms.
4. The elevation of these areas, while not as high as the mountain peaks, is still sufficient to reduce some of the coastal haze and humidity that might affect solar panel efficiency.
However, it's important to note that any large-scale solar PV project would need to carefully consider factors such as land ownership, environmental impact, and proximity to existing power infrastructure. Additionally, the rugged terrain of the Lebanon Mountains, while scenic, would generally be less suitable for large solar installations due to the challenges posed by steep slopes and difficult access.
Citation Guide
Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Monday 12th of August 2024
Last Updated: Monday 21st of July 2025
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.




