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Flag of AlgeriaSolar PV Analysis of Oued Rhiou, Algeria

Graph of hourly avg kWh electricity output per kW of Solar PV installed in Oued Rhiou, Algeria (by season)

Oued Rhiou, Relizane, Algeria proves to be an excellent location for year-round solar photovoltaic energy generation, with consistently strong performance across all seasons. This Northern Temperate Zone location at coordinates 35.962°N, 0.9093°E delivers impressive solar energy output that makes it highly suitable for both residential and commercial solar installations.

Seasonal Solar Performance

The location demonstrates robust solar energy production throughout the year, with summer naturally providing the highest output at 7.67 kWh per day per kW of installed solar capacity. Spring follows as the second-best performing season at 6.37 kWh per day per kW, making these warmer months ideal for maximizing solar energy generation. Even during the cooler months, Oued Rhiou maintains respectable solar output levels. Autumn produces 4.48 kWh per day per kW, while winter, though the lowest performing season, still generates a useful 3.38 kWh per day per kW of installed capacity. This consistent year-round performance eliminates concerns about seasonal energy shortfalls that plague many other locations.

Optimal Panel Configuration

For maximum year-round solar energy production at Oued Rhiou, Relizane, fixed solar panels should be tilted at 31 degrees facing south. This optimal angle is calculated by analyzing daily solar elevation angles at this specific latitude, determining daily optimal panel positioning, and weighting these angles according to solar irradiance data while accounting for Earth's elliptical orbit patterns.

Environmental and Weather Considerations

Several local factors in the Oued Rhiou region could potentially impact solar panel performance and require attention during installation planning:
  • Desert dust and sand accumulation: Algeria's proximity to the Sahara Desert means regular dust storms and sand particles can coat solar panels, significantly reducing their efficiency
  • High summer temperatures: Extreme heat can cause solar panels to operate less efficiently, as photovoltaic cells lose performance as temperatures rise above optimal ranges
  • Occasional rainfall patterns: While generally arid, the region experiences irregular but sometimes intense rainfall that could affect mounting systems if not properly designed

Preventative Installation Measures

To maximize solar energy production despite these environmental challenges, several preventative measures should be implemented. Installing automated cleaning systems or scheduling regular manual cleaning helps combat dust accumulation, which is crucial for maintaining peak panel efficiency in this dusty environment. Proper ventilation spacing beneath panels allows air circulation to reduce operating temperatures during hot summer months, helping maintain optimal performance levels. Using high-quality mounting systems rated for wind loads protects against occasional severe weather events that can occur in the region. Selecting solar panels with anti-reflective coatings and robust tempered glass surfaces provides better resistance to both sand abrasion and thermal stress. Additionally, installing monitoring systems enables quick identification of performance drops, allowing for prompt maintenance interventions to restore optimal energy generation levels.

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 Oued Rhiou

Seasonal solar PV output for Latitude: 35.962, Longitude: 0.9093 (Oued Rhiou, 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:

Summer
Average 7.67kWh/day in Summer.
Autumn
Average 4.48kWh/day in Autumn.
Winter
Average 3.38kWh/day in Winter.
Spring
Average 6.37kWh/day in Spring.

 

Ideally tilt fixed solar panels 31° South in Oued Rhiou, Algeria

To maximize your solar PV system's energy output in Oued Rhiou, Algeria (Lat/Long 35.962, 0.9093) 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.

The sun
At Latitude: 35.962, Longitude: 0.9093, the ideal angle to tilt panels is 31° South

Seasonally adjusted solar panel tilt angles for Oued Rhiou, 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 Oued Rhiou, 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 28° South in Spring

Assuming you can modify the tilt angle of your solar PV panels throughout the year, you can optimize your solar generation in Oued Rhiou, Algeria as follows: In Summer, set the angle of your panels to 20° facing South. In Autumn, tilt panels to 40° facing South for maximum generation. During Winter, adjust your solar panels to a 51° angle towards the South for optimal energy production. Lastly, in Spring, position your panels at a 28° angle facing South to capture the most solar energy in Oued Rhiou, Algeria.

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 Oued Rhiou, 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 Oued Rhiou, Algeria.

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.






Please enter information above to calculate panel spacing.

Topography for solar PV around Oued Rhiou, Algeria

Topography Around Oued Rhiou

Oued Rhiou sits in the Chlef Province of northwestern Algeria, positioned within a region characterized by rolling hills and moderate elevation changes. The town itself rests at approximately 200 meters above sea level, nestled in a landscape that transitions between the coastal plains to the north and the more mountainous terrain of the Tell Atlas range to the south.

The surrounding topography features a series of gentle ridges and valleys that create a somewhat undulating terrain. These hills are generally not steep or dramatic, making the area relatively accessible for development and infrastructure projects. The landscape is punctuated by seasonal watercourses and dry riverbeds, which are typical of the semi-arid Mediterranean climate zone.

To the north of Oued Rhiou, the terrain gradually flattens as it approaches the coastal plains near the Mediterranean Sea. This northern area consists of broad, open spaces with minimal elevation changes, creating extensive flat or gently sloping surfaces. The soil composition in these areas tends to be alluvial, deposited over centuries by water flow from the higher elevations.

Moving southward from the town, the landscape becomes progressively more hilly as it approaches the foothills of the Tell Atlas mountains. While these elevations are more pronounced than the northern plains, they remain relatively modest compared to the dramatic peaks found deeper in the Atlas range.

Optimal Areas for Large-Scale Solar Development

The most promising locations for large-scale solar photovoltaic installations lie in the relatively flat expanses to the north and northwest of Oued Rhiou. These areas offer several topographical advantages that make them ideal for solar development. The gentle slopes and minimal elevation changes reduce the complexity and cost of installing large arrays of solar panels, while providing adequate drainage to prevent water accumulation during the rainy season.

The broad plateaus and plains extending toward the coast present particularly attractive opportunities for solar farms. These areas typically have fewer obstacles such as steep grades or deep valleys that would complicate construction and maintenance access. The relatively stable ground conditions in these flatter regions also provide better foundations for the mounting systems required for large-scale solar installations.

Areas with slight southern-facing slopes throughout the region would be especially beneficial, as they naturally optimize the angle at which solar panels can capture sunlight throughout the day. Many of the gentle hills surrounding Oued Rhiou offer such orientations, particularly those extending in east-west ridgelines.

The terrain immediately east and west of the town also presents viable options, where the landscape consists of broad, open areas with minimal vegetation and few competing land uses. These zones benefit from good accessibility via existing road networks while maintaining the relatively flat characteristics needed for efficient solar panel deployment.

Less suitable areas would include the steeper hillsides to the south, where the increased grade would create challenges for panel installation and maintenance access. Additionally, areas near active watercourses or in natural drainage channels should be avoided due to potential flooding risks and environmental considerations.

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!

Citation Guide

Article Details for Citation

Article: Solar PV Analysis of Oued Rhiou, Algeria
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Saturday 26th of July 2025
Last Updated: Thursday 7th of August 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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