Relizane, Algeria presents an excellent location for year-round solar PV energy generation, with consistently strong solar output across all seasons. The data shows this Northern Temperate Zone location delivers impressive electricity production throughout the year.

Seasonal Solar Performance

Summer represents the peak solar generation period at Relizane, producing 7.67 kWh per day per kW of installed solar capacity. This exceptional output makes the summer months ideal for maximizing solar energy production. Spring follows as the second-best season with 6.37 kWh per day per kW, offering excellent solar generation conditions. Autumn maintains solid performance at 4.48 kWh per day per kW, while winter shows the lowest but still respectable output of 3.38 kWh per day per kW. Even during the winter months, the solar production remains substantial enough to provide meaningful energy generation.

Optimal Panel Configuration

For fixed panel installations at Relizane, the ideal tilt angle is 31 degrees facing South to maximize total year-round solar production. This angle has been calculated by analyzing daily solar elevation angles at this latitude and weighting them according to daily PV potential using solar irradiance data, accounting for Earth's elliptical orbit.

Environmental Factors and Mitigation Strategies

Several environmental factors in the Relizane region could potentially impact solar production and require consideration during installation planning. Desert dust and sand accumulation represents the most significant challenge for solar installations in this Algerian location. The arid climate and proximity to desert regions mean that fine particles can settle on solar panels, reducing their efficiency by blocking sunlight. Regular cleaning schedules should be implemented, ideally using automated cleaning systems or establishing maintenance contracts for frequent manual cleaning. High temperatures during summer months, while contributing to excellent solar irradiance, can actually reduce panel efficiency as photovoltaic cells perform less efficiently when overheated. Installing panels with adequate ventilation space underneath and using mounting systems that promote airflow can help mitigate this issue. Choosing solar panels with better temperature coefficients will also maintain higher performance during extreme heat. Wind-blown debris and occasional sandstorms common to North African regions can cause both immediate soiling and potential physical damage to solar installations. Robust mounting systems designed to withstand high winds should be specified, and protective measures such as windbreaks or strategic positioning can reduce exposure to wind-carried particles. The intense UV radiation that contributes to excellent solar production can also accelerate degradation of panel materials and mounting components. Selecting high-quality panels with proven durability in desert climates and UV-resistant mounting materials will ensure longer system lifespan and maintained performance. Water scarcity in the region makes cleaning operations more challenging and expensive. Installing dry cleaning systems, implementing water recycling for cleaning operations, or scheduling cleaning during periods when water availability is better can address this constraint while maintaining optimal panel performance.

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 Relizane

Seasonal solar PV output for Latitude: 35.6172, Longitude: 0.5145 (Relizane, 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 Relizane, Algeria

To maximize your solar PV system's energy output in Relizane, Algeria (Lat/Long 35.6172, 0.5145) 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 Relizane, 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 Relizane, 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
19° South in Summer	40° South in Autumn	50° South in Winter	28° 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 Relizane, 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 Relizane, 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.

Topography for solar PV around Relizane, Algeria

Topographical Features of the Relizane Region

The area surrounding Relizane in northwestern Algeria is characterized by relatively gentle terrain that forms part of the broader Chelif River valley system. This region sits within the Tell Atlas foothills, where the landscape transitions from the coastal plains to the north and the higher mountain ranges to the south. The topography consists primarily of rolling hills, wide valleys, and expansive plateaus that create a varied but generally accessible terrain. The Chelif River, Algeria's longest waterway, meanders through this region and has carved out fertile valleys over millennia. These river valleys are interspersed with low-lying hills and ridges that rarely exceed significant elevations, creating a landscape that undulates gently across the countryside. The terrain becomes progressively more mountainous as one travels southward toward the Atlas Mountains, while northward toward the Mediterranean coast, the land gradually flattens into coastal plains. Agricultural terraces and cultivated fields dominate much of the visible landscape, reflecting centuries of farming activity in this fertile region. The natural vegetation consists of Mediterranean scrubland and scattered oak forests on the hillsides, while the valley floors have been largely converted to agricultural use. Rocky outcrops and limestone formations appear throughout the area, particularly on the higher elevations and ridge lines.

Optimal Areas for Large-Scale Solar Development

The most promising locations for extensive solar photovoltaic installations would be found on the elevated plateaus and gentle hillsides that extend south and southwest of Relizane. These areas combine several advantageous characteristics: they typically feature stable, well-drained soils suitable for supporting large installations, while their elevated positions provide excellent exposure to solar radiation with minimal shading from surrounding terrain. The broad valleys running east-west through the region also present excellent opportunities for solar development, particularly those areas that are not currently under intensive agricultural cultivation. These valley floors offer extensive flat or gently sloping terrain that would minimize construction costs and maximize the efficiency of solar panel arrays. The relatively dry climate and sparse vegetation in many of these areas would reduce maintenance requirements and environmental impacts. Areas to the south of the city, where the terrain begins to rise toward the Atlas foothills, would be particularly well-suited for solar installations. These locations benefit from their elevation and southern exposure while remaining accessible for construction and maintenance activities. The rocky, less fertile soils in these areas make them less valuable for agriculture, reducing potential land-use conflicts. The northeastern sections of the region, where the landscape opens into broader plains, also offer substantial potential for solar development. These areas feature extensive flat terrain with good accessibility via existing road networks, making them practical choices for large-scale installations that require significant infrastructure support.

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

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.