Arles, France presents a moderately good location for year-round solar PV energy generation, though with significant seasonal variations typical of its Northern Temperate Zone position.

Seasonal Solar Performance

The solar energy output at this location shows strong seasonal patterns. Summer delivers the highest production at 7.55kWh per day per kW of installed capacity, making it the prime solar generation season. Spring follows as the second-best period with 5.94kWh daily output per kW, offering excellent energy production as daylight hours increase. Autumn sees a notable decline to 3.54kWh per day per kW, while winter presents the most challenging period with only 2.05kWh daily per kW. This winter figure represents just 27% of summer production, highlighting the significant seasonal variation that characterizes this location.

Optimal Panel Configuration

For maximum year-round energy production at Arles, solar panels should be installed at a fixed tilt angle of 37 degrees facing south. This angle has been calculated to optimize total annual output by accounting for the sun's varying elevation throughout the year and weighting for actual solar irradiance data.

Local Factors Affecting Solar Production

Several environmental and weather factors in the Arles region can impact solar panel performance:

• Mistral winds: This area experiences strong, dry northwesterly winds that can carry dust and debris, potentially reducing panel efficiency through accumulation on surfaces
• Mediterranean dust: Seasonal dust from North Africa can settle on panels, creating a film that blocks sunlight
• Salt air effects: Proximity to the Mediterranean coast means salt-laden air can cause corrosion and leave residue on panel surfaces
• Agricultural dust: The surrounding agricultural landscape generates dust during harvest seasons and dry periods

Preventative Measures for Better Performance

To maximize solar energy production despite these challenges, several installation strategies prove effective: Regular cleaning schedules become essential, particularly after dust storms or during high agricultural activity periods. Installing panels with adequate spacing allows for proper airflow and easier maintenance access. Choosing corrosion-resistant mounting systems and electrical components helps combat salt air effects. Anti-reflective coatings designed for dusty environments can reduce the impact of particle accumulation. Positioning panels to take advantage of natural rain cleaning while ensuring proper drainage prevents water pooling that could attract more dirt. Monitoring systems help identify when cleaning or maintenance becomes necessary to maintain optimal output. Despite these local challenges, Arles remains a viable location for solar energy generation, particularly during the extended spring and summer seasons when production peaks significantly above winter 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 627 locations across France. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.

Link: Solar PV potential in France by location

Solar output per kW of installed solar PV by season in Arles

Seasonal solar PV output for Latitude: 43.6757, Longitude: 4.6298 (Arles, France), 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 37° South in Arles, France

To maximize your solar PV system's energy output in Arles, France (Lat/Long 43.6757, 4.6298) throughout the year, you should tilt your panels at an angle of 37° 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 Arles, France

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 Arles, France. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 37° South tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
27° South in Summer	48° South in Autumn	58° South in Winter	36° 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 Arles, France

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 Arles, France.

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 Arles, France

Topographical Features Around Arles

The landscape surrounding Arles in southeastern France is characterized by remarkably flat terrain that forms part of the expansive Rhône River delta region. This ancient city sits at the heart of the Camargue, where the mighty Rhône splits into two main branches before flowing into the Mediterranean Sea. The topography here is dominated by vast alluvial plains that were formed over millennia by sediment deposits from the river system. The elevation around Arles remains consistently low, with most areas sitting just a few meters above sea level. These gentle, rolling plains extend in all directions from the city, creating an almost table-like landscape that stretches toward the horizon. To the north and east, the terrain gradually rises toward the foothills of the Alpilles mountain range, but even these elevated areas maintain relatively modest slopes and accessible gradients.

Geological and Land Use Characteristics

The soil composition in this region consists primarily of fertile alluvial deposits mixed with clay and silt, which has made the area highly suitable for agriculture throughout history. Large expanses of farmland dominate the landscape, with fields of rice, wheat, and other crops creating a patchwork pattern across the plains. The Camargue wetlands to the south add diversity to the terrain, featuring salt marshes, lagoons, and protected natural areas. The flat nature of the terrain means that water drainage relies heavily on an extensive network of canals and irrigation channels that crisscross the landscape. These waterways, originally constructed for agricultural purposes, create a distinctive geometric pattern when viewed from above, dividing the land into regular rectangular sections.

Optimal Areas for Large-Scale Solar Development

The expansive flat plains extending northeast and northwest of Arles present the most promising locations for large-scale solar photovoltaic installations. These areas offer several key advantages, including minimal topographical obstacles, excellent accessibility for construction and maintenance vehicles, and reduced land preparation costs due to the naturally level terrain. The agricultural zones between Arles and the town of Tarascon to the north provide particularly suitable conditions, with large continuous parcels of relatively uniform land. Similarly, the plains extending toward Saint-Martin-de-Crau to the east offer extensive flat areas with good transportation access via existing road networks. The slightly elevated plateaus in the Alpilles foothills, while requiring more careful site selection, could also accommodate solar installations. These areas benefit from excellent drainage and reduced risk of seasonal flooding, which can occasionally affect the lower-lying delta regions during periods of heavy rainfall or high river levels. Areas closer to the Mediterranean coast and within the protected Camargue natural park would be less suitable due to environmental restrictions, higher humidity levels, and the corrosive effects of salt air on equipment. The wetland regions also present challenges related to unstable ground conditions and ecological sensitivity.

France solar PV Stats as a country

France ranks 11th in the world for cumulative solar PV capacity, with 14,718 total MW's of solar PV installed. This means that 2.80% of France's total energy as a country comes from solar PV (that's 30th in the world). Each year France is generating 218 Watts from solar PV per capita (France ranks 23rd in the world for solar PV Watts generated per capita). [source]

Are there incentives for businesses to install solar in France?

Yes, there are several incentives for businesses wanting to install solar energy in France. The French government offers a range of financial incentives and tax credits to encourage businesses to invest in renewable energy sources such as solar power. These include the Feed-in Tariff (FiT), which pays businesses for the electricity they generate from their solar panels, and the Investment Tax Credit (ITC), which provides a 30% tax credit on investments made in renewable energy systems. Additionally, businesses may be eligible for grants or loans from local authorities or regional development agencies.

Do you have more up to date information than this on incentives towards solar PV projects in France? Please reach out to us and help us keep this information current. Thanks!

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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.