Fresnes, France, located at latitude 48.7529 and longitude 2.3224, presents a mixed picture for solar energy generation throughout the year. This location in the Northern Temperate Zone experiences significant seasonal variations in solar output, which impacts the overall efficiency of solar PV installations.
Seasonal Solar Performance
Solar energy production in Fresnes peaks during the summer months, with an impressive daily output of 5.56 kWh per kW of installed capacity. Spring follows closely behind, generating 4.97 kWh/day. However, autumn sees a considerable drop to 2.89 kWh/day, while winter experiences the lowest production at just 1.34 kWh/day.
These figures highlight that Fresnes is most suitable for solar energy generation from late spring through early autumn. During this period, longer days and higher sun angles contribute to increased solar panel efficiency. Conversely, the winter months present challenges due to shorter days, lower sun angles, and potentially overcast conditions.
Optimal Panel Placement
To maximize year-round solar production in Fresnes, fixed solar panels should be tilted at a 42-degree angle facing south. This optimal angle helps balance energy capture across seasons, compensating for the sun's varying positions throughout the year.
Environmental and Weather Considerations
While Fresnes doesn't face extreme environmental challenges, there are some factors that could impact solar production:
- Cloud cover: The region can experience overcast conditions, particularly in winter, which may reduce solar output.
- Snow and frost: Winter snowfall or frost can temporarily decrease panel efficiency if not promptly removed.
To mitigate these issues, consider installing panels with anti-reflective coatings to improve performance in low-light conditions. Additionally, implementing a regular cleaning schedule, especially after snowfall, can help maintain optimal energy production. Snow guards or heating elements can also be installed to prevent snow accumulation on panels.
In conclusion, while Fresnes is not ideal for year-round solar energy production due to significant seasonal variations, it still offers good potential, especially during spring and summer. With proper panel placement and maintenance, a solar PV system can be a viable renewable energy option for this location.
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 Fresnes
Seasonal solar PV output for Latitude: 48.7529, Longitude: 2.3224 (Fresnes, 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 Fresnes, France
To maximize your solar PV system's energy output in Fresnes, France (Lat/Long 48.7529, 2.3224) 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 Fresnes, 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 Fresnes, 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 Fresnes, 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 Fresnes, 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 Fresnes, France
The area around Fresnes, France, is characterized by relatively flat terrain typical of the Île-de-France region. This part of France is known for its gently rolling hills and expansive plains, with only subtle changes in elevation across the landscape. Fresnes itself sits at an elevation of approximately 50 meters (164 feet) above sea level.
The topography in this region is largely shaped by the Seine River and its tributaries, which have carved shallow valleys over time. While there are some minor hills and slight undulations in the terrain, there are no significant mountains or steep slopes in the immediate vicinity of Fresnes.
The surrounding area is primarily urban and suburban, as Fresnes is located in the southern suburbs of Paris. This means that much of the natural landscape has been altered by human development, including residential areas, industrial zones, and transportation infrastructure.
Areas Suitable for Large-Scale Solar PV
When considering locations for large-scale solar photovoltaic (PV) installations near Fresnes, several factors need to be taken into account:
1. Open spaces: The most suitable areas would be those with large, unobstructed open spaces. These might be found in the less densely populated regions to the south and southeast of Fresnes, where there are more agricultural lands and fewer urban developments.
2. Flat terrain: The generally flat nature of the region is advantageous for solar PV installations, as it reduces the need for extensive land preparation and allows for easier arrangement of solar panels.
3. Proximity to power infrastructure: Areas close to existing electrical grid infrastructure would be preferable to minimize the costs of connecting the solar farm to the power network.
4. Minimal environmental impact: Locations that do not require the clearing of forests or disruption of important ecosystems would be ideal.
5. Zoning and land use regulations: Areas already zoned for industrial or energy production purposes would face fewer regulatory hurdles.
Given these considerations, the most promising areas for large-scale solar PV installations near Fresnes would likely be found in the more rural areas to the south, potentially in the direction of Longjumeau or Palaiseau. These areas offer a better balance of open space and proximity to infrastructure while being far enough from the dense Parisian suburbs to find suitable land parcels.
However, it's important to note that any large-scale solar project would require detailed site-specific assessments and would need to comply with local and national regulations governing land use and energy production.
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 27th 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.
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.




