Marseillette, Occitanie, France offers reasonably good conditions for solar energy generation throughout most of the year, though with significant seasonal variation typical of its Northern Temperate Zone location.
Seasonal Solar Performance
The location experiences strong solar production during the warmer months, with summer delivering 6.58kWh per day per kW of installed capacity - an excellent output that makes this the peak generation period. Spring follows as the second-best season with 5.26kWh daily, providing substantial energy production as daylight hours increase and weather improves. Autumn sees a notable drop to 3.22kWh per day, while winter presents the most challenging period with just 1.86kWh daily output. This winter figure represents less than 30% of summer production, highlighting the seasonal dependency of solar generation at this latitude.Optimal Installation Setup
For maximum year-round energy production at Marseillette, Occitanie, 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 changing position throughout the year and weighting for actual solar irradiance data.Local Environmental Factors
Several regional factors could potentially impact solar performance at this location:- Mediterranean dust and pollen: The southern French climate can generate significant dust accumulation on panels, particularly during dry summer periods and spring pollen seasons
- Mistral winds: While these strong northwesterly winds can help keep panels clean, they may also carry debris and require robust mounting systems
- Salt air influence: Being relatively close to the Mediterranean coast, salt-laden air could accelerate corrosion of mounting hardware over time
Preventative Measures
To maximize energy production despite these challenges, several installation strategies prove beneficial. Regular cleaning schedules become particularly important during spring and summer months when dust and pollen accumulation peaks. Installing panels with adequate spacing allows for better air circulation and easier maintenance access. Choosing corrosion-resistant mounting materials, particularly marine-grade aluminum or stainless steel components, helps combat salt air effects. Robust mounting systems designed for high wind loads ensure panels remain secure during mistral wind events while maintaining optimal positioning. The seasonal variation at Marseillette makes it well-suited for grid-tied systems that can take advantage of excellent summer production, though battery storage systems should account for the significantly reduced winter output when designing for energy independence.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 Marseillette
Seasonal solar PV output for Latitude: 43.1996, Longitude: 2.542 (Marseillette, 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 Marseillette, France
To maximize your solar PV system's energy output in Marseillette, France (Lat/Long 43.1996, 2.542) 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 Marseillette, 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 Marseillette, 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 | 47° 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 Marseillette, 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 Marseillette, France.
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 Marseillette, France
Topographical Features Around Marseillette
Marseillette sits in the heart of the Languedoc region in southern France, positioned within the Aude department at an elevation of approximately 40 meters above sea level. The landscape around this small commune is characterized by gently rolling hills and expansive plains that stretch across the Mediterranean coastal region. The terrain forms part of the broader Languedoc plain, which extends from the foothills of the Pyrenees in the south toward the Massif Central in the north.
The immediate surroundings of Marseillette feature predominantly flat to moderately undulating agricultural land, with gradual slopes that rarely exceed 10-15 degrees. This gentle topography is typical of the alluvial plains formed by ancient river systems, particularly influenced by the nearby Aude River valley. The landscape is punctuated by low ridges and shallow valleys that create a pleasant, varied countryside without dramatic elevation changes.
To the north and northwest, the terrain begins to rise more noticeably as it approaches the southern edges of the Corbières hills, while to the south and southeast, the land remains relatively flat as it extends toward the Mediterranean coast, approximately 30 kilometers away. The region's geology consists primarily of sedimentary deposits, creating stable ground conditions with good drainage characteristics.
Optimal Areas for Large-Scale Solar Development
The topographical characteristics around Marseillette present excellent opportunities for large-scale solar photovoltaic installations. The most suitable areas lie on the broad, gently sloping plains that extend to the south and southeast of the commune. These locations offer extensive flat or near-flat terrain that minimizes grading requirements and reduces installation costs while maximizing the potential for large, continuous solar arrays.
The agricultural plateaus located between Marseillette and the coastal plain represent particularly promising sites for solar development. These elevated but relatively level areas provide good drainage, stable soil conditions, and minimal shading from surrounding topographical features. The gentle southern-facing slopes in this region are especially well-suited for solar installations, as they naturally orient panels toward optimal sun exposure angles.
Areas to the southwest toward Narbonne also present favorable conditions, where the landscape consists of broad, open plains with minimal topographical obstacles. The consistent elevations and gradual terrain changes in these zones would allow for efficient large-scale solar farm layouts with standardized mounting systems and simplified electrical infrastructure.
The region's relatively low annual rainfall and stable weather patterns, combined with the favorable topography, create ideal conditions for solar installations. The absence of significant elevation changes means that seasonal shading from hills or ridges is not a concern, and the generally open landscape provides excellent access for construction and maintenance vehicles. Additionally, the proximity to existing electrical grid infrastructure connecting the coastal cities makes these areas particularly attractive for utility-scale solar development.
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!
Citation Guide
Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Monday 21st of July 2025
Last Updated: Thursday 7th of August 2025
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.




