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

Seasonal Solar Performance

The solar energy output at Landeleau shows dramatic seasonal swings that reflect the location's northern latitude. Summer delivers the strongest performance at 5.48kWh per day per kW of installed solar capacity, making it the peak generation period. Spring follows closely behind with 5.01kWh per day per kW, indicating excellent conditions during these warmer months when the sun travels higher across the sky. However, the location faces considerable challenges during colder months. Autumn production drops to 2.79kWh per day per kW, while winter plummets to just 1.34kWh per day per kW. This represents a four-fold difference between peak summer and winter output, which is substantial for energy planning purposes.

Optimal Panel Configuration

For fixed panel installations at Landeleau, the ideal tilt angle is 41 degrees facing south to maximize total year-round solar production. This angle has been calculated by analyzing daily solar elevation angles throughout the year and weighting them according to solar irradiance data to determine the optimal compromise for annual energy output.

Local Factors Affecting Solar Production

Several environmental and weather factors in this region of Brittany can significantly impact solar energy generation:

• High humidity and frequent coastal moisture from the Atlantic Ocean
• Regular rainfall and overcast conditions, particularly during autumn and winter months
• Salt air exposure due to proximity to the coast
• Potential for morning fog and mist accumulation

Preventative Measures for Better Performance

To combat these local challenges and ensure optimal energy production, several installation strategies should be considered:

• Install panels with anti-reflective coatings designed for high-moisture environments
• Use corrosion-resistant mounting hardware rated for coastal conditions
• Implement regular cleaning schedules to remove salt deposits and moisture buildup
• Ensure proper drainage systems around panel installations to prevent water pooling
• Consider micro-inverters or power optimizers to minimize impact of partial shading from weather

The frequent rainfall can actually benefit solar installations by naturally cleaning panels, but the combination of salt air and high humidity requires more robust equipment specifications and maintenance protocols than inland locations would typically need.

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 Landeleau

Seasonal solar PV output for Latitude: 48.2266, Longitude: -3.7254 (Landeleau, 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 Landeleau, France

To maximize your solar PV system's energy output in Landeleau, France (Lat/Long 48.2266, -3.7254) 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 Landeleau, 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 Landeleau, 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 Landeleau, 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 Landeleau, 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.

Topography for solar PV around Landeleau, France

Topographical Features of Landeleau

Landeleau sits in the heart of Brittany's interior, positioned within the Montagnes Noires (Black Mountains) region of western France. This area forms part of the Armorican Massif, an ancient geological formation that creates a landscape of rolling hills, modest peaks, and deeply carved valleys. The terrain around Landeleau is characterised by gentle to moderate slopes, with elevations typically ranging from 200 to 400 metres above sea level. The immediate vicinity features a patchwork of agricultural fields, small woodlands, and traditional Breton bocage landscape - a countryside mosaic of hedgerows, stone walls, and scattered farmsteads. The topography is generally undulating rather than dramatically mountainous, creating a series of rounded hills and shallow valleys that flow naturally across the landscape. Small streams and tributaries weave through these valleys, eventually feeding into larger river systems that drain toward the Atlantic coast.

Geological and Terrain Considerations

The underlying geology consists primarily of schist and granite formations typical of the Armorican Massif. This creates relatively stable ground conditions, though the weathered granite soils can vary in their load-bearing capacity. The terrain shows evidence of ancient glacial activity and millennia of erosion, resulting in the smooth, weathered appearance characteristic of this part of Brittany. Drainage patterns across the region follow the natural contours of the land, with water flowing generally from the higher elevations in the Montagnes Noires toward the coastal plains. The soil composition tends to be acidic and well-draining, supporting the region's traditional agricultural activities including livestock grazing and crop cultivation.

Optimal Areas for Large-Scale Solar Development

The most suitable locations for large-scale solar photovoltaic installations around Landeleau would be the gently sloping hillsides with southern or southwestern exposures. These areas offer the dual advantages of good solar orientation while maintaining relatively stable ground conditions for mounting systems. The moderate slopes, typically between 5 and 15 degrees, provide excellent drainage while avoiding the complications associated with steep terrain. Elevated plateaus and ridge areas within a 10-15 kilometre radius of Landeleau present particularly attractive opportunities. These locations benefit from reduced shading from surrounding topographical features and often experience better air circulation, which can help maintain optimal panel temperatures. The higher elevations also tend to have fewer trees and existing structures that might create shadows. Areas of former agricultural land on south-facing slopes would be especially well-suited for solar development. The existing field boundaries and access roads in many of these locations could facilitate construction and maintenance activities. The relatively open landscape means that large installations could be developed without extensive clearing of mature forest, reducing environmental impact and development costs. Valley floors and areas with predominantly northern exposure would be less suitable for solar development. Additionally, the steeper sections of the Montagnes Noires, while offering good elevation, may present engineering challenges and higher installation costs due to the more complex terrain and potential access difficulties.

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

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.