Villiers-Charlemagne, Pays de la Loire, France presents a moderately favorable location for year-round solar photovoltaic energy generation, though with significant seasonal variations typical of its Northern Temperate Zone climate.
Seasonal Solar Performance
The location shows strong solar energy potential during the warmer months, with summer delivering the highest output at 5.67kWh per day per installed kilowatt. Spring follows closely behind at 5.33kWh per day, making these two seasons the ideal times for solar energy generation at this site. These periods represent when solar panels will operate at their most efficient levels. Autumn sees a notable decline in production to 3.07kWh per day, while winter presents the most challenging conditions with only 1.43kWh per day. This dramatic seasonal swing from summer to winter - nearly a four-fold difference - reflects the typical solar energy patterns found in northern European locations.Optimal Panel Configuration
For maximum year-round energy production at Villiers-Charlemagne, Pays de la Loire, solar panels should be installed at a fixed tilt angle of 41 degrees facing south. This angle has been calculated to optimize total annual solar output by accounting for the sun's changing position throughout the year and the Earth's elliptical orbit around the sun.Environmental Factors and Mitigation Strategies
Several local factors could potentially impact solar energy production at this French location. The maritime climate influence from the nearby Atlantic Ocean can bring frequent cloud cover and precipitation, particularly during autumn and winter months, which directly reduces solar panel efficiency. Fog formation is common in this region during cooler months, creating additional obstacles to solar radiation reaching the panels. The area also experiences occasional severe weather events, including strong winds and hailstorms, which could damage solar installations if not properly protected. To maximize energy production despite these challenges, several preventative measures should be considered:- Install panels with robust mounting systems designed to withstand high winds and severe weather conditions
- Use anti-reflective coatings and self-cleaning glass surfaces to minimize the impact of moisture and debris accumulation
- Implement proper drainage systems around panel installations to prevent water pooling
- Choose high-quality panels with good low-light performance to maintain output during overcast conditions
- Ensure adequate spacing between panel rows to prevent shading and allow for proper air circulation
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 Villiers-Charlemagne
Seasonal solar PV output for Latitude: 47.92, Longitude: -0.68 (Villiers-Charlemagne, 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 41° South in Villiers-Charlemagne, France
To maximize your solar PV system's energy output in Villiers-Charlemagne, France (Lat/Long 47.92, -0.68) throughout the year, you should tilt your panels at an angle of 41° 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 Villiers-Charlemagne, 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 Villiers-Charlemagne, France. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 41° 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 | 51° South in Autumn | 62° South in Winter | 40° 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 Villiers-Charlemagne, 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 Villiers-Charlemagne, 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 Villiers-Charlemagne, France
Topography Around Villiers-Charlemagne
Villiers-Charlemagne sits in the Mayenne department of northwestern France, positioned within the gently rolling landscape characteristic of the Maine region. The terrain around this small commune features predominantly flat to moderately undulating countryside, with elevations typically ranging between 40 and 80 meters above sea level. This area forms part of the broader Armorican Massif, an ancient geological formation that has been weathered over millions of years into relatively gentle topography.
The landscape is primarily agricultural, dominated by bocage countryside typical of western France. This traditional farming system creates a patchwork of small fields separated by hedgerows and scattered woodlands. The hedgerows, known locally as bocage, create natural windbreaks and field boundaries that have shaped the region's character for centuries. Small streams and tributaries of the Mayenne River meander through the area, creating shallow valleys that add subtle variation to the otherwise gentle terrain.
The soil composition consists mainly of schist and sandstone bedrock covered by fertile alluvial deposits, particularly in the river valleys. These geological conditions contribute to the area's suitability for agriculture while also providing stable foundations for development projects. The climate influence of the nearby Atlantic Ocean moderates temperature extremes and contributes to the region's generally mild weather patterns.
Optimal Areas for Large-Scale Solar Development
The relatively flat terrain surrounding Villiers-Charlemagne presents several advantages for large-scale solar photovoltaic installations. The most suitable areas would be the open agricultural plateaus located to the south and southeast of the commune, where the land exhibits minimal slope variation and receives excellent solar exposure throughout the day. These elevated areas, typically sitting between 60 and 75 meters above sea level, offer unobstructed views of the southern sky while maintaining good drainage characteristics.
Areas with gentle south-facing slopes would be particularly advantageous for solar installations, as they naturally orient panels toward optimal sun angles. The region's bocage landscape, while picturesque, presents some challenges for large-scale development due to the numerous hedgerows that could create shading issues. However, larger consolidated agricultural fields, particularly those used for cereal crops rather than pasture, would provide the most practical locations for extensive solar arrays.
The proximity to existing electrical infrastructure along the main roads connecting Villiers-Charlemagne to larger towns like Laval would facilitate grid connection for major solar installations. Areas near the D21 and D576 roads offer both accessibility for construction and maintenance vehicles and existing utility corridors that could accommodate power transmission lines. The stable geological conditions throughout the region would support the foundations required for ground-mounted solar tracking systems, which could maximize energy capture efficiency.
Avoiding the immediate river valleys and wetland areas would be essential, as these locations may experience seasonal flooding and present environmental sensitivities. The higher, well-drained agricultural lands represent the optimal balance of suitable topography, solar access, and practical development considerations for large-scale photovoltaic projects in this region of western France.
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: Saturday 9th of August 2025
Last Updated: Sunday 10th 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.




