Solar Energy Potential in Chlef, Algeria
Chlef, Algeria, situated at latitude 36.4036° and longitude 0.9168° in the Northern Temperate Zone, offers promising conditions for solar photovoltaic (PV) energy generation, though with notable seasonal variations. The solar energy production potential in Chlef follows a distinct seasonal pattern. Summer stands out as the most productive season, with an impressive average daily output of 7.26 kWh per kW of installed capacity. Spring follows as the second most productive season, generating approximately 6.06 kWh per day per kW installed. Production decreases significantly during autumn, with daily generation dropping to about 4.14 kWh per kW installed. Winter represents the least productive period, with output falling to 3.17 kWh per day per kW installed. This creates a substantial difference between summer and winter production, with summer generating more than twice the electricity of winter. For maximizing year-round solar energy production in Chlef, fixed solar panels should be installed at a tilt angle of 31 degrees facing South. This optimal angle has been calculated by analyzing daily solar elevation patterns at this specific latitude, weighted by the solar potential throughout the year.Environmental Considerations
Several environmental factors could potentially impact solar energy production in Chlef. The region experiences a Mediterranean climate with hot, dry summers and mild, wetter winters. Dust accumulation presents a significant challenge, as Chlef's proximity to semi-arid regions means regular dust deposits on solar panels can reduce efficiency by 10-30% if not addressed. Preventative measures should include installing automated cleaning systems or implementing regular manual cleaning schedules. Panels should be mounted at sufficient height to minimize dust accumulation from ground-level activities. Anti-soiling coatings can also be applied to panel surfaces to reduce dust adhesion. Temperature management is another important consideration, as Chlef experiences very hot summer days that can reduce panel efficiency. Installing panels with adequate airflow beneath them and selecting high-temperature tolerant PV modules can help mitigate these effects. Some installations may benefit from solar tracking systems to maximize production during the highly productive summer months, though this adds complexity and maintenance requirements.Note: The Northern Temperate Zone extends from 35° latitude North up to 66.5° latitude.
So far, we have conducted calculations to evaluate the solar photovoltaic (PV) potential in 52 locations across Algeria. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.
Link: Solar PV potential in Algeria by location
Solar output per kW of installed solar PV by season in Chlef
Seasonal solar PV output for Latitude: 36.4036, Longitude: 0.9168 (Chlef, Algeria), 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 31° South in Chlef, Algeria
To maximize your solar PV system's energy output in Chlef, Algeria (Lat/Long 36.4036, 0.9168) throughout the year, you should tilt your panels at an angle of 31° 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 Chlef, Algeria
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 Chlef, Algeria. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 31° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 20° South in Summer | 40° South in Autumn | 51° South in Winter | 29° 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 Chlef, Algeria
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 Chlef, Algeria.
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 Chlef, Algeria
The topography around Chlef, Algeria presents a diverse landscape characterized by several distinct geographical features. The city itself is nestled in the Chlef Valley, a fertile depression that runs between two significant mountain ranges. To the north lies the Dahra Mountains, a coastal mountain chain that separates the Chlef region from the Mediterranean Sea. These mountains, while not extremely high, create a natural barrier that influences the local climate patterns. To the south of Chlef rises the more imposing Ouarsenis Mountain range, part of the Tell Atlas mountain system. These mountains reach considerably higher elevations, with some peaks exceeding 1,800 meters above sea level. This southern mountain chain creates a dramatic backdrop to the valley and plays a significant role in the region's weather and water resources. The Chlef Valley itself is relatively flat and open, following the course of the Chlef River, which is one of Algeria's most important waterways. This river valley has historically been an important agricultural area due to its fertile alluvial soils and access to water. The valley floor gradually rises in elevation as one moves away from the river, transitioning into foothills before reaching the steeper mountain slopes.
Potential Areas for Solar PV Development
When considering large-scale solar photovoltaic installations around Chlef, several areas stand out as particularly promising due to their topographical advantages. The gently sloping plains and plateaus to the south and southwest of Chlef offer some of the most suitable terrain for solar development. These areas benefit from relatively flat topography with minimal shading from mountains, allowing for maximum solar exposure throughout the day. The elevated nature of these plateaus also typically means fewer dust issues compared to lower valley locations. The foothills region between the Chlef Valley and the Ouarsenis Mountains presents another promising area. This transitional zone features gradually sloping terrain with good drainage characteristics, reducing concerns about flooding or water accumulation that could affect solar infrastructure. These areas are typically less agriculturally productive than the valley floor, making them more available for alternative land uses like energy production. Several high plateaus within the broader region, particularly those located to the southeast of Chlef, combine favorable topography with excellent solar resource potential. These elevated flat areas receive minimal shadowing effects from surrounding terrain and benefit from clearer atmospheric conditions at higher elevations. It's worth noting that while the mountainous areas themselves are generally not ideal for large-scale solar installations due to their steep slopes and variable aspects, some of the wider mountain valleys and saddles between peaks could support smaller, strategically positioned solar developments. The areas to avoid would include the immediate river valley floor, which is subject to potential flooding and is valuable agricultural land, as well as the steepest north-facing slopes of the mountains, which receive significantly reduced direct sunlight due to their orientation. The semi-arid nature of much of the terrain surrounding Chlef is actually advantageous for solar development, as the sparse vegetation reduces concerns about land clearing and habitat disruption. However, this same characteristic means that project developers would need to consider appropriate erosion control measures, particularly on sloping sites.Algeria solar PV Stats as a country
Algeria ranks 53rd in the world for cumulative solar PV capacity, with 448 total MW's of solar PV installed. Each year Algeria is generating 10 Watts from solar PV per capita (Algeria ranks 73rd in the world for solar PV Watts generated per capita). [source]
Are there incentives for businesses to install solar in Algeria?
Yes, there are incentives for businesses wanting to install solar energy in Algeria. The Algerian government has implemented a number of policies and programs to encourage the development of renewable energy sources, including solar energy. These include tax exemptions, subsidies, and other financial incentives for businesses that invest in renewable energy projects. Additionally, the government has established a Renewable Energy Development Fund (REDF) which provides grants and loans to support renewable energy projects.
Do you have more up to date information than this on incentives towards solar PV projects in Algeria? Please reach out to us and help us keep this information current. Thanks!
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Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Thursday 1st of May 2025
Last Updated: Saturday 20th of September 2025
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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.
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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.




