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Flag of FranceSolar PV Analysis of Biaudos, France

Graph of hourly avg kWh electricity output per kW of Solar PV installed in Biaudos, France (by season)

Biaudos, France presents a moderately good location for year-round solar photovoltaic energy generation, though with significant seasonal variations typical of its Northern Temperate Zone position.

Seasonal Solar Performance

The solar energy output at this location shows strong seasonal patterns. Summer delivers the highest production at 5.94 kWh per day per kW of installed solar capacity, making it the peak generation period. Spring follows closely with 5.30 kWh per day per kW, representing the second-best season for solar energy harvest. Autumn production drops considerably to 3.15 kWh per day per kW, while winter presents the most challenging conditions with only 1.76 kWh per day per kW of output. This dramatic winter reduction means the location produces more than three times as much solar energy in summer compared to the coldest months.

Optimal Installation Setup

For maximum year-round solar production at Biaudos, solar panels should be installed at a fixed tilt angle of 37 degrees facing south. This angle has been calculated to optimize total annual energy output by accounting for the sun's varying position throughout the year and the Earth's elliptical orbit patterns.

Local Factors Affecting Solar Production

Several environmental and weather factors in this coastal Atlantic region of France could impact solar panel performance: The proximity to the Atlantic Ocean brings high humidity levels and salt air, which can cause corrosion on solar panel frames and mounting hardware over time. Additionally, the marine environment increases the likelihood of salt buildup on panel surfaces, reducing light transmission and energy output. This region experiences frequent cloud cover and precipitation, particularly during autumn and winter months, which directly reduces solar irradiance reaching the panels. The area is also prone to strong Atlantic winds that can deposit debris, leaves, and salt spray on solar installations.

Preventative Measures for Better Performance

To combat these local challenges, several installation strategies can help maximize energy production:
  • Use marine-grade aluminum frames and stainless steel mounting hardware specifically designed to resist salt corrosion
  • Apply anti-reflective coatings that also provide easier cleaning properties to panel surfaces
  • Install panels with adequate spacing for air circulation to reduce moisture buildup
  • Implement regular cleaning schedules, especially after storms, to remove salt deposits and debris
  • Choose panels with robust weatherproofing and warranties suitable for coastal environments
Despite these environmental challenges, Biaudos remains viable for solar energy generation, particularly when proper installation techniques and maintenance practices are employed to address the coastal Atlantic climate conditions.

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 Biaudos

Seasonal solar PV output for Latitude: 43.5494, Longitude: -1.3111 (Biaudos, 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:

Summer
Average 5.94kWh/day in Summer.
Autumn
Average 3.15kWh/day in Autumn.
Winter
Average 1.76kWh/day in Winter.
Spring
Average 5.30kWh/day in Spring.

 

Ideally tilt fixed solar panels 37° South in Biaudos, France

To maximize your solar PV system's energy output in Biaudos, France (Lat/Long 43.5494, -1.3111) 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.

The sun
At Latitude: 43.5494, Longitude: -1.3111, the ideal angle to tilt panels is 37° South

Seasonally adjusted solar panel tilt angles for Biaudos, 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 Biaudos, 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
28° South in Summer 47° South in Autumn 58° South in Winter 36° South in Spring

Assuming you can modify the tilt angle of your solar PV panels throughout the year, you can optimize your solar generation in Biaudos, France as follows: In Summer, set the angle of your panels to 28° facing South. In Autumn, tilt panels to 47° facing South for maximum generation. During Winter, adjust your solar panels to a 58° angle towards the South for optimal energy production. Lastly, in Spring, position your panels at a 36° angle facing South to capture the most solar energy in Biaudos, France.

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 Biaudos, 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 Biaudos, France.

Our calculation method

  1. Solar Position:
    We determine the Sun's position on the Winter solstice using the location's latitude and solar declination.
  2. Shadow Projection:
    We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle.
  3. 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.






Please enter information above to calculate panel spacing.

Topography for solar PV around Biaudos, France

Topographical Features of Biaudos

Biaudos sits in the southwestern region of France within the Landes department, positioned in a relatively flat coastal plain that extends inland from the Atlantic Ocean. The terrain around this small commune is characteristically gentle, with minimal elevation changes that typify much of the Aquitaine Basin. The landscape consists predominantly of sandy soils and low-lying areas that were historically marshy before extensive drainage and land management projects transformed the region.

The immediate surroundings feature a mix of agricultural fields, small woodlands, and scattered residential areas. The topography gradually rises very slightly as one moves inland from the coast, but the changes in elevation remain modest throughout the area. Small streams and drainage channels crisscross the landscape, remnants of the region's wetland heritage and ongoing water management systems.

To the west, the terrain maintains its flat character as it approaches the Atlantic coastline, while eastward the land begins a very gradual ascent toward the foothills of the broader Pyrenean region, though these changes occur over considerable distances. The soil composition is predominantly sandy with some clay deposits, creating generally stable ground conditions with good drainage characteristics.

Optimal Areas for Large-Scale Solar Development

The flat to gently rolling topography surrounding Biaudos presents excellent conditions for large-scale solar photovoltaic installations. The most suitable areas lie to the east and southeast of the commune, where expansive agricultural fields provide substantial open spaces with minimal topographical obstacles. These areas offer the dual advantages of level ground for easy installation and maintenance access, combined with sufficient space for meaningful solar farm development.

The agricultural zones extending toward the neighboring communes present particularly attractive opportunities, as the flat terrain minimizes grading requirements and reduces installation costs. The sandy soil composition provides stable foundations while allowing for efficient drainage, reducing long-term maintenance concerns related to water accumulation or soil instability.

Areas to the north and northeast also show promise, where the landscape opens into broader agricultural expanses with minimal tree cover or built structures. The gentle topography in these directions would allow for optimal panel orientation and spacing while maintaining clear sight lines that minimize shading issues between panel arrays.

The western approaches toward the coast, while topographically suitable, may face greater regulatory constraints due to environmental protections and existing coastal development patterns. However, the consistently flat terrain throughout the region means that technical suitability remains high across most directions from Biaudos, with site selection likely depending more on land availability and regulatory considerations than on topographical limitations.

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

Article: Solar PV Analysis of Biaudos, France
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Monday 28th of July 2025
Last Updated: Thursday 7th 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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