Baalbek, Lebanon, situated at 34.0046° N, 36.2154° E, presents a promising location for solar PV energy generation throughout the year. This ancient city in the Beqaa Valley offers varying levels of solar potential across different seasons.

Seasonal Solar Performance

The solar energy output in Baalbek fluctuates significantly across seasons. Summer stands out as the most productive period, with an impressive 8.66 kWh per day for each kilowatt of installed solar capacity. Spring follows closely, generating 7.00 kWh/day. Autumn sees a moderate decrease to 5.17 kWh/day, while winter experiences the lowest output at 3.21 kWh/day.

Optimal Times for Solar Generation

The months from late spring through early autumn offer the most favorable conditions for solar energy production in Baalbek. During this period, longer days and clearer skies contribute to higher solar irradiance levels. The peak performance typically occurs around the summer solstice in June, gradually tapering off as autumn approaches.

Panel Installation Considerations

For fixed panel installations in Baalbek, the ideal tilt angle to maximize year-round solar production is 29 degrees facing south. This angle optimizes the panels' exposure to sunlight throughout the year, accounting for seasonal variations in the sun's position.

Environmental and Weather Factors

While Baalbek's climate is generally conducive to solar energy production, there are some factors that could potentially impact efficiency: 1. Dust storms: The region occasionally experiences dust storms, which can temporarily reduce panel efficiency. Regular cleaning and maintenance can mitigate this issue. 2. High summer temperatures: Extreme heat can slightly decrease panel efficiency. Choosing heat-resistant panels and ensuring proper ventilation during installation can help address this concern. 3. Winter snowfall: Although rare, occasional snowfall in winter can temporarily reduce energy output. Installing panels at the recommended angle helps snow slide off more easily.

Preventative Measures

To maximize solar energy production in Baalbek, consider the following measures: 1. Implement a regular cleaning schedule to remove dust and debris from panels. 2. Use high-quality, heat-resistant panels designed for hot climates. 3. Ensure proper spacing and ventilation during installation to prevent overheating. 4. Consider a tracking system for even higher energy yields, especially during peak production months. By addressing these factors and implementing appropriate measures, Baalbek can harness its considerable solar potential effectively, making it a suitable location for solar PV energy generation 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 Baalbek

Seasonal solar PV output for Latitude: 34.0046, Longitude: 36.2154 (Baalbek, 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 Baalbek, Lebanon

To maximize your solar PV system's energy output in Baalbek, Lebanon (Lat/Long 34.0046, 36.2154) 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 Baalbek, 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 Baalbek, 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 Baalbek, 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 Baalbek, Lebanon.

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 Baalbek, Lebanon

Baalbek, an ancient city in Lebanon, is situated in a unique topographical setting that combines various landscape features. The city lies in the Beqaa Valley, a fertile plain nestled between two mountain ranges: the Lebanon Mountains to the west and the Anti-Lebanon Mountains to the east. This valley stretches for about 120 kilometers from north to south and has an average width of around 16 kilometers. The terrain surrounding Baalbek is predominantly flat, with gentle slopes rising towards the mountains on either side. The valley floor, where Baalbek is located, sits at an elevation of approximately 1,170 meters above sea level. This relatively high elevation contributes to the region's Mediterranean climate, characterized by hot, dry summers and cool, wet winters.

Topographical Features

The Beqaa Valley's flat expanse is punctuated by occasional hills and low ridges, creating a subtle undulating landscape. The soil in this area is particularly fertile, thanks to millennia of alluvial deposits from the surrounding mountains. This rich soil has made the Beqaa Valley one of Lebanon's most important agricultural regions. To the west of Baalbek, the Lebanon Mountains rise dramatically, with peaks reaching heights of over 3,000 meters. These mountains create a rain shadow effect, influencing the climate of the Beqaa Valley. To the east, the Anti-Lebanon Mountains form a natural border with Syria, with slightly lower elevations but still impressive peaks.

Potential for Solar PV Installation

When considering areas nearby that would be most suited to large-scale solar PV installations, several factors come into play. The flat, open spaces of the Beqaa Valley offer promising potential for solar energy development. The following areas near Baalbek could be particularly suitable: 1. The expansive agricultural lands to the south and southeast of Baalbek: These areas benefit from minimal shading and have relatively low population density, making them ideal for large-scale solar farms. 2. The gently sloping foothills of the Anti-Lebanon Mountains to the east: These areas receive ample sunlight throughout the day and have less agricultural value than the valley floor, potentially making them available for solar development. 3. The elevated plateaus to the north of Baalbek: These areas offer good sun exposure and are less likely to be affected by morning and evening shading from the surrounding mountains. It's important to note that while these areas show promise for solar PV development, any large-scale project would need to carefully consider factors such as land use, environmental impact, and proximity to existing power infrastructure. Additionally, the region's occasional dust storms and potential for snow in winter would need to be factored into the design and maintenance plans for any solar installation.

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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.