The location of Neuilly-sur-Marne, France, situated at latitude 48.8546 and longitude 2.5472, presents a moderate opportunity for solar energy generation throughout the year. This Northern Temperate Zone location experiences significant seasonal variations in solar output, which impacts the overall efficiency of photovoltaic (PV) systems.
Seasonal Solar Performance
Solar energy production in Neuilly-sur-Marne peaks during the summer months, with an average daily output of 5.56 kWh per kW of installed capacity. Spring follows closely behind with 4.97 kWh/day, making these two seasons the most productive for solar energy generation. Autumn sees a considerable decrease in output, averaging 2.89 kWh/day, while winter experiences the lowest production at 1.34 kWh/day.
The substantial difference between summer and winter output highlights the importance of proper system sizing to ensure adequate energy production year-round. While summer months offer excellent solar potential, the reduced winter output may necessitate alternative energy sources or energy storage solutions to maintain consistent power supply.
Optimal Panel Installation
To maximize year-round solar energy production in Neuilly-sur-Marne, fixed solar panels should be installed at a tilt angle of 42 degrees facing south. This angle optimizes the panels' exposure to sunlight throughout the year, balancing the varying sun positions across seasons.
Environmental and Weather Considerations
While Neuilly-sur-Marne's climate is generally favorable for solar energy production, there are some factors that could potentially impact system performance:
- Cloud cover: The region experiences frequent cloudy days, particularly in autumn and winter, which can reduce solar output.
- Pollution: Being close to Paris, air pollution may occasionally affect solar irradiance levels.
To mitigate these factors, consider implementing the following measures:
- Use high-efficiency solar panels that perform well in low-light conditions.
- Install a solar tracking system to maximize energy capture throughout the day.
- Regularly clean panels to remove dust and pollutants that may accumulate on the surface.
- Implement a robust monitoring system to quickly identify and address any performance issues.
By taking these precautions and optimizing the installation, solar PV systems in Neuilly-sur-Marne can achieve good energy production levels, particularly during the spring and summer months, while maintaining reasonable output during the less favorable autumn and winter seasons.
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 Neuilly-sur-Marne
Seasonal solar PV output for Latitude: 48.8546, Longitude: 2.5472 (Neuilly-sur-Marne, 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 Neuilly-sur-Marne, France
To maximize your solar PV system's energy output in Neuilly-sur-Marne, France (Lat/Long 48.8546, 2.5472) 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 Neuilly-sur-Marne, 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 Neuilly-sur-Marne, 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 Neuilly-sur-Marne, 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 Neuilly-sur-Marne, 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 Neuilly-sur-Marne, France
The topography around Neuilly-sur-Marne, France, is generally characterized by a relatively flat landscape with gentle slopes. This area is part of the Paris Basin, a large sedimentary basin that covers much of northern France. The town itself is situated along the banks of the Marne River, which contributes to some subtle variations in elevation near the riverbanks.
The surrounding region consists primarily of low-lying plains with occasional small hills and valleys. To the north and east of Neuilly-sur-Marne, the terrain remains mostly flat, gradually rising towards the northeast. To the south and west, the landscape becomes slightly more varied, with some minor elevations as you approach the outskirts of Paris.
In terms of areas nearby that would be most suited to large-scale solar PV (photovoltaic) installations, there are a few considerations to keep in mind. The ideal locations for solar farms would be open, flat areas with minimal shading and good exposure to sunlight throughout the day. Based on the topography of the region, some potential areas for solar PV development could include:
- Agricultural lands to the east and northeast of Neuilly-sur-Marne, where there are expansive open fields with little obstruction.
- Former industrial sites or brownfields in the surrounding communities, which could be repurposed for solar energy production.
- Open spaces along the Marne River valley, provided they are not prone to flooding and do not interfere with important ecological habitats.
It's important to note that while the topography in this area is generally favorable for solar PV installations, other factors such as local zoning regulations, land availability, grid connectivity, and environmental considerations would also play crucial roles in determining the most suitable locations for large-scale solar projects. Additionally, given the proximity to urban areas, careful planning would be necessary to balance energy production needs with land use and aesthetic concerns of local communities.
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: Friday 6th of September 2024
Last Updated: Monday 21st of July 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.




