Biot, France offers reasonably good conditions for year-round solar energy generation, though with significant seasonal variations typical of its Mediterranean climate in the Northern Temperate Zone.
Seasonal Solar Performance
The solar energy output at this location shows a clear seasonal pattern. Summer provides the strongest performance at 7.42 kWh per day per kW of installed solar capacity, making it an excellent time for solar generation. Spring follows as the second-best season with 5.73 kWh per day per kW, offering substantial energy production as daylight hours increase and weather improves. Autumn sees a notable decline to 3.50 kWh per day per kW as the region transitions into its wetter months and daylight decreases. Winter presents the most challenging period with only 2.22 kWh per day per kW, representing less than one-third of summer production levels. For optimal year-round energy capture from a fixed panel installation at Biot, solar panels should be tilted at 37 degrees facing south. This angle maximizes total annual production by balancing the sun's varying height throughout the seasons.Local Factors Affecting Solar Production
Several environmental and weather factors in the Biot area can impact solar energy generation:- Mistral winds: These strong, dry winds from the northwest can carry dust and debris that accumulate on solar panels, reducing their efficiency
- Mediterranean dust: Seasonal dust from North Africa can settle on panels, particularly during spring and summer months
- Autumn rainfall patterns: While generally beneficial for cleaning panels, heavy autumn rains common to the region can create periods of reduced solar output
- Coastal salt air: Being relatively close to the Mediterranean coast, salt deposits may gradually build up on panel surfaces
Preventative Measures for Better Performance
To maximize solar energy production despite these local challenges, several installation strategies prove effective: Regular cleaning schedules become essential, particularly during dusty periods and after mistral wind events. Installing panels with easy access for maintenance helps ensure consistent cleaning. Using anti-soiling coatings on panel surfaces can reduce dust and salt accumulation while making cleaning more effective. Proper panel mounting with adequate spacing allows for better air circulation, helping prevent debris buildup and improving cooling efficiency. Installing monitoring systems helps identify when cleaning or maintenance becomes necessary by tracking performance drops. Choosing high-quality panels rated for coastal and dusty environments ensures better long-term durability against salt air and particle accumulation. Strategic positioning away from trees or structures that might collect and redistribute dust or debris also helps maintain cleaner panel surfaces. Overall, Biot represents a moderately favorable location for solar energy generation, with strong summer and spring performance offsetting the challenges of winter months and local environmental factors.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 Biot
Seasonal solar PV output for Latitude: 43.6274, Longitude: 7.1006 (Biot, 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 Biot, France
To maximize your solar PV system's energy output in Biot, France (Lat/Long 43.6274, 7.1006) 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 Biot, 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 Biot, 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 Biot, 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 Biot, 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 Biot, France
Topographical Features of the Biot Region
Biot sits in the picturesque landscape of the French Riviera, nestled between the Mediterranean coast and the foothills of the Maritime Alps. The terrain around this historic Provençal village is characterized by rolling hills, gentle slopes, and terraced landscapes that have been shaped by centuries of agricultural use. The elevation rises gradually from the coastal plain near Antibes, which lies just a few kilometers to the south, up into the more mountainous terrain that defines the inland areas of the Alpes-Maritimes department. The immediate surroundings of Biot feature a mix of cultivated terraces, olive groves, and Mediterranean scrubland known locally as garrigue. These terraces, originally carved into the hillsides for agricultural purposes, create a series of relatively flat platforms that step up the landscape. The underlying geology consists primarily of limestone and sedimentary rocks typical of the Provence region, which has weathered over time to create the characteristic red and ochre soils of the area. To the north and northwest of Biot, the terrain becomes increasingly hilly as it approaches the Grasse plateau and the pre-Alpine foothills. This area features broader, more gently undulating hills with expansive views across the region. The landscape here is less densely developed than the coastal areas, with larger parcels of agricultural land and natural vegetation.Optimal Areas for Large-Scale Solar Development
The most suitable locations for large-scale solar photovoltaic installations in the Biot area would be found on the gently sloping hillsides and plateaus to the north and northwest of the village. These areas offer several advantages for solar development, including relatively flat or south-facing slopes that can maximize solar exposure throughout the day. The agricultural terraces in these locations, while historically significant, may present opportunities for agrivoltaics or conversion to solar farms, particularly on land that is no longer actively farmed. The plateau areas extending toward Grasse and Valbonne present particularly promising opportunities due to their expansive, relatively level terrain and lower population density compared to the coastal regions. These locations would face fewer constraints from existing development and would have better access to transmission infrastructure. The limestone bedrock in these areas also provides stable foundations for mounting systems. Areas closer to the coast, while receiving excellent solar exposure, would be less suitable for large-scale installations due to higher land values, denser development, and greater regulatory restrictions associated with the urbanized coastal zone. The steeper slopes of the Maritime Alps foothills to the immediate north would also present engineering challenges and potential environmental concerns that could limit development opportunities. The region's Mediterranean climate, with its predominantly clear skies and minimal precipitation during the peak solar months, makes virtually any properly oriented site technically viable for solar generation. However, the combination of suitable topography, land availability, and infrastructure access makes the inland plateau areas the most practical choice for significant solar development projects.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: Wednesday 9th of July 2025
Last Updated: Wednesday 6th 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.
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.




