Ablon-sur-Seine, France shows a moderate solar energy potential for year-round electricity generation, though with significant seasonal variation typical of its Northern Temperate Zone location at latitude 48.7235°N and longitude 2.4284°E.
Seasonal Solar Performance
The location demonstrates strong summer performance with solar panels generating 5.52 kWh per day for each kilowatt of installed capacity. Spring also provides excellent conditions at 4.91 kWh/day per kW, making these the prime seasons for solar energy production. Autumn sees a notable decline to 2.81 kWh/day per kW, while winter presents the most challenging conditions with only 1.30 kWh/day per kW of output. This seasonal pattern means that approximately 75% of annual solar production occurs during the six-month period from March through August, with May through July being the peak generation months.Optimal Panel Configuration
For maximum year-round energy production at Ablon-sur-Seine, solar panels should be installed at a fixed tilt angle of 42 degrees facing south. This angle has been calculated using weighted solar elevation data throughout the year, accounting for Earth's elliptical orbit and the varying solar irradiance at this latitude.Environmental and Weather Challenges
Several local factors can impact solar production efficiency at this location and require consideration during installation:- Frequent cloud cover and overcast conditions, particularly during autumn and winter months
- High humidity levels from the Seine River proximity, leading to increased condensation on panels
- Seasonal fog formation, especially during cooler months
- Urban air pollution from the greater Paris metropolitan area
- Potential dust and particulate accumulation on panel surfaces
Preventative Installation Measures
To maximize energy production despite these challenges, several installation strategies should be implemented. Installing panels with adequate spacing allows for proper air circulation, reducing moisture buildup and improving cooling efficiency. Using anti-reflective coatings and hydrophobic surface treatments helps panels shed water and resist dirt accumulation. Regular cleaning schedules become particularly important in this location due to the combination of urban pollution and river humidity. Installing monitoring systems allows for quick identification of performance drops due to soiling or other issues. Choosing high-quality inverters with good low-light performance characteristics helps maintain efficiency during the frequent overcast conditions. Additionally, ensuring panels are mounted with slight forward tilt beyond the optimal 42 degrees can improve self-cleaning through rainfall runoff.Overall Assessment
While Ablon-sur-Seine is not an ideal solar location compared to sunnier climates, it remains viable for solar PV installations with proper planning. The strong spring and summer performance can offset the reduced winter output, particularly when combined with appropriate installation techniques to mitigate local environmental challenges.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 Ablon-sur-Seine
Seasonal solar PV output for Latitude: 48.7235, Longitude: 2.4284 (Ablon-sur-Seine, 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 42° South in Ablon-sur-Seine, France
To maximize your solar PV system's energy output in Ablon-sur-Seine, France (Lat/Long 48.7235, 2.4284) throughout the year, you should tilt your panels at an angle of 42° 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 Ablon-sur-Seine, 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 Ablon-sur-Seine, France. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 42° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 32° South in Summer | 52° South in Autumn | 62° South in Winter | 41° 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 Ablon-sur-Seine, 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 Ablon-sur-Seine, 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 Ablon-sur-Seine, France
Topography Around Ablon-sur-Seine
Ablon-sur-Seine sits in the southeastern suburbs of Paris, positioned along the Seine River in the Val-de-Marne department. The terrain here is characteristic of the broader Île-de-France region, featuring relatively gentle topography with modest elevation changes. The landscape consists primarily of low-lying river terraces and gentle slopes that rise gradually away from the Seine valley floor. The immediate area around Ablon-sur-Seine lies at approximately 35 to 45 meters above sea level, with the Seine River serving as the lowest point in the local topography. Moving away from the river, the land rises in subtle undulations toward the south and east, reaching elevations of around 80 to 100 meters on the plateau areas. These elevation changes are gradual rather than steep, creating a rolling landscape without significant hills or dramatic terrain features. The Seine valley itself has carved a relatively wide floodplain through this region, leaving behind fertile alluvial deposits and creating naturally flat areas along the riverbanks. Beyond the immediate river corridor, the landscape transitions into the characteristic plateaus of the Paris Basin, where limestone bedrock lies beneath a layer of fertile soil and occasional sand and gravel deposits left by ancient river systems.Optimal Areas for Large-Scale Solar Development
The most suitable locations for large-scale solar photovoltaic installations in this region would be the elevated plateau areas to the south and southeast of Ablon-sur-Seine. These higher elevations offer several advantages, including better drainage, reduced flood risk, and typically fewer competing land uses compared to the prime agricultural areas closer to the Seine. The gently sloping terrain on these plateaus provides ideal conditions for solar panel installation, as the modest gradients allow for optimal panel orientation while minimizing the need for extensive grading or earthwork. Areas with south-facing slopes would be particularly advantageous, as they naturally complement the preferred orientation for solar panels in the Northern Hemisphere. Former industrial sites and brownfield locations scattered throughout the southeastern suburbs present excellent opportunities for solar development. These areas often have existing electrical infrastructure nearby and may have less environmental sensitivity compared to undeveloped green spaces. The relatively flat industrial zones that developed along transportation corridors would require minimal site preparation for solar installations. Agricultural areas on the higher plateaus, particularly those with marginal soil quality or challenging farming conditions, could also be suitable for solar development. The gentle topography in these locations would allow for agrivoltaic systems or traditional ground-mounted installations without significant terrain modifications. Areas to avoid would include the immediate Seine floodplain due to flood risk, steeply sloped areas that would require extensive grading, and prime agricultural land with high soil quality. The dense urban areas closer to Paris would also present challenges due to land availability and cost considerations.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: Thursday 31st of July 2025
Last Updated: Friday 8th 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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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.




