Roussy-le-Village, Grand Est, France presents a moderately suitable 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 dramatic seasonal swings that reflect the region's continental climate patterns. Summer months deliver the strongest performance at 5.28 kWh per day per kW of installed capacity, making this the prime solar generation period. Spring follows as the second-best season with 4.58 kWh daily output, benefiting from increasing daylight and favorable weather conditions. Autumn production drops to 2.54 kWh per day, while winter presents the most challenging conditions with only 1.19 kWh daily output per kW installed. This winter figure represents less than 23% of summer production, highlighting the significant seasonal challenge for consistent year-round solar energy generation.

Optimal Installation Configuration

For fixed panel installations at Roussy-le-Village, Grand Est, the ideal tilt angle is 42 degrees facing south to maximize total annual energy production. This angle represents the optimal compromise across all seasons, calculated by weighting daily solar elevation angles against actual solar irradiance data throughout the year.

Local Environmental Factors

Several environmental and weather factors could potentially impact solar production at this location:

• Frequent cloud cover and overcast conditions, particularly during autumn and winter months
• Snow accumulation on panels during winter, which can block sunlight entirely
• Morning fog and mist common in this region's valleys
• Potential for ice formation on panels during freezing periods

Preventative Measures for Enhanced Production

To mitigate these environmental challenges and optimize solar energy production, several installation strategies prove effective: Installing panels at the recommended 42-degree tilt naturally helps snow slide off more easily than flatter installations. Adding heating elements or snow guards can further prevent winter accumulation issues. Ensuring adequate spacing between panel rows prevents shadowing when snow does accumulate on lower panels. Regular cleaning schedules become particularly important during autumn when falling leaves and debris can accumulate on panels. Anti-reflective coatings help maximize energy capture during the frequent overcast conditions typical of this region. Proper drainage around the installation site prevents water pooling that could create localized fog or humidity issues. Installing panels with adequate ventilation underneath helps prevent ice formation and improves overall efficiency during cold months. Given the substantial seasonal variation in output, battery storage systems or grid-tie arrangements become especially valuable at this location to balance the dramatic difference between summer abundance and winter scarcity of solar energy production.

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 Roussy-le-Village

Seasonal solar PV output for Latitude: 49.4568, Longitude: 6.1706 (Roussy-le-Village, 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 Roussy-le-Village, France

To maximize your solar PV system's energy output in Roussy-le-Village, France (Lat/Long 49.4568, 6.1706) 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 Roussy-le-Village, 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 Roussy-le-Village, 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
33° South in Summer	52° South in Autumn	62° South in Winter	42° 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 Roussy-le-Village, 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 Roussy-le-Village, 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 Roussy-le-Village, France

Topographical Features of Roussy-le-Village

Roussy-le-Village sits within the gently rolling landscape of the Lorraine region in northeastern France, close to the Luxembourg border. The terrain around this small commune is characterized by modest hills and shallow valleys, with elevations typically ranging between 250 and 350 meters above sea level. The area forms part of the broader Lorraine plateau, which presents a relatively subdued topography compared to the more dramatic mountain ranges found elsewhere in France. The landscape consists primarily of agricultural fields interspersed with patches of deciduous woodland. The rolling nature of the terrain creates a series of gentle slopes and ridgelines that extend in various directions, with no particularly dominant mountain peaks or deep valleys. Small streams and seasonal watercourses have carved subtle depressions through the countryside over millennia, creating a network of shallow drainage channels that add texture to the otherwise gentle topography. The soil composition in this region is predominantly clay and limestone-based, typical of the geological formations found throughout Lorraine. This foundation provides stable ground conditions that are well-suited to various types of development, including renewable energy installations.

Optimal Areas for Large-Scale Solar Development

The most promising locations for large-scale solar photovoltaic installations around Roussy-le-Village would be the south-facing slopes and plateau areas that experience minimal shading throughout the day. The gentle gradients of these hillsides provide excellent opportunities for solar arrays while maintaining good drainage and accessibility for construction and maintenance vehicles. Open agricultural fields on elevated ground would represent prime candidates for solar development, particularly those areas that currently support less intensive farming activities. The relatively flat to gently sloping terrain in these locations would minimize the need for extensive grading or earthwork, reducing installation costs and environmental impact. Areas along the broader ridgelines that run through the region would also be highly suitable, as they typically receive consistent solar exposure and are elevated above surrounding valleys where morning mist or fog might occasionally reduce solar irradiance. These elevated positions also tend to have better wind circulation, which can help keep solar panels cooler and operating more efficiently. The proximity to existing agricultural infrastructure, including farm roads and electrical connections, makes many of these rural areas particularly attractive for solar development. The stable geological conditions of the Lorraine plateau provide excellent foundations for mounting systems, while the generally open landscape minimizes concerns about shading from trees or buildings. Former industrial sites or areas of marginal agricultural value would represent especially suitable locations, as they could be repurposed for renewable energy generation without competing with productive farmland. The relatively gentle topography throughout the region means that large, contiguous areas could potentially be developed as single solar installations, taking advantage of economies of scale in both construction and operation.

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.