Pleudihen-sur-Rance, France shows moderate potential for year-round solar energy generation, though with significant seasonal variations typical of its Northern Temperate Zone location. The solar output data reveals a clear pattern of strong summer and spring performance contrasted with much weaker winter production.

Seasonal Solar Performance

Summer represents the peak solar generation period at this location, producing 5.47kWh per day per kW of installed capacity. Spring follows closely with excellent output of 5.16kWh per day per kW, making these two seasons ideal for solar energy production. Together, summer and spring provide the majority of annual solar energy potential. Autumn shows a notable decline to 2.86kWh per day per kW, while winter drops dramatically to just 1.33kWh per day per kW. This winter figure represents less than a quarter of summer production, highlighting the challenging nature of solar generation during the coldest months. For fixed panel installations at Pleudihen-sur-Rance, the optimal tilt angle is 42 degrees facing south to maximize total year-round solar output.

Environmental and Weather Challenges

Several factors could significantly impact solar production at this coastal Brittany location. The maritime climate brings frequent cloud cover and precipitation, particularly during autumn and winter months, which directly reduces solar irradiance reaching the panels. The proximity to the English Channel means higher humidity levels and potential for salt air exposure, which can create a film on solar panels that reduces their efficiency over time. Coastal winds, while beneficial for cooling panels, can also carry salt spray and debris.

Preventative Measures for Optimal Performance

Regular cleaning schedules become essential in this coastal environment, with panels requiring more frequent maintenance than inland installations. Anti-reflective coatings designed for marine environments can help resist salt buildup and maintain panel transparency. Installing panels with adequate spacing allows for proper air circulation and natural rain washing. Choosing mounting systems with corrosion-resistant materials suited for coastal conditions prevents long-term structural issues that could affect panel positioning and performance. Implementing monitoring systems helps identify performance drops quickly, allowing for prompt maintenance when weather-related efficiency losses occur.

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 Pleudihen-sur-Rance

Seasonal solar PV output for Latitude: 48.5164, Longitude: -1.9728 (Pleudihen-sur-Rance, 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 Pleudihen-sur-Rance, France

To maximize your solar PV system's energy output in Pleudihen-sur-Rance, France (Lat/Long 48.5164, -1.9728) 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 Pleudihen-sur-Rance, 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 Pleudihen-sur-Rance, 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 Pleudihen-sur-Rance, 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 Pleudihen-sur-Rance, 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 Pleudihen-sur-Rance, France

Topography and Terrain Around Pleudihen-sur-Rance

Pleudihen-sur-Rance sits in the gently undulating landscape of northern Brittany, where the Rance River meanders through a valley before reaching the English Channel. The immediate area is characterized by rolling hills that rarely exceed 100 meters in elevation, creating a relatively gentle topography typical of this part of the Côtes-d'Armor department. The terrain consists primarily of agricultural land interspersed with small woodlands and traditional bocage hedgerows that have defined the Breton countryside for centuries. The Rance Valley itself forms a natural corridor running roughly north-south, with the river flowing toward the famous tidal barrage at Saint-Malo. East and west of this valley, the land rises gradually into modest plateaus and ridges that offer good exposure to southern skies. The soil composition is predominantly clay and schist, typical of the Armorican Massif, with some areas of granite bedrock closer to the surface.

Optimal Areas for Large-Scale Solar Development

The elevated plateaus to the east and west of the Rance Valley present the most promising opportunities for large-scale solar photovoltaic installations. These areas benefit from relatively flat to gently sloping terrain that faces predominantly south or southwest, providing excellent solar exposure throughout the day. The higher elevation also means these locations are less likely to experience morning fog that can sometimes linger in the river valley. The agricultural plateau extending eastward toward the communes of Lanvallay and Dinan offers particularly suitable conditions. This area features open farmland with minimal tree cover and good accessibility via existing rural roads. The terrain here is stable, with adequate drainage and relatively few environmental constraints that might complicate large-scale development. Similarly, the western slopes rising toward Plouër-sur-Rance present favorable conditions, though developers would need to consider the area's proximity to the Côte d'Émeraude regional natural area. The southern-facing slopes in this direction offer excellent solar orientation while maintaining reasonable distances from residential areas. The flat agricultural land south of Pleudihen-sur-Rance, extending toward Evran, also shows strong potential for solar development. This area benefits from open exposure with minimal shading from topographical features, though careful consideration would be needed regarding the preservation of prime agricultural soils that are important to the local farming economy. Areas closer to the Rance River itself would be less suitable due to periodic flooding risks, higher humidity levels, and the ecological sensitivity of the riparian environment. The steeper slopes immediately adjacent to the river valley would also present engineering challenges and potential visual impact concerns for any large-scale installations.

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!

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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.