Orly, France, situated in the northern temperate zone, presents a mixed landscape for solar energy generation throughout the year. This location, with coordinates 48.7411°N, 2.3916°E, experiences significant seasonal variations in solar energy output, which directly impacts the efficiency of photovoltaic (PV) systems.

Seasonal Solar Performance

The solar energy production in Orly follows a predictable pattern aligned with the changing seasons. Summer stands out as the most productive period, with an impressive daily output of 5.56 kWh per kW of installed solar capacity. Spring follows closely, generating 4.97 kWh/day. However, there's a notable decline in autumn, with production dropping to 2.89 kWh/day. Winter sees the lowest output at just 1.34 kWh/day, presenting challenges for consistent year-round energy generation.

Optimal Panel Positioning

To maximize year-round solar energy production in Orly, fixed solar panels should be installed at a tilt angle of 42 degrees facing south. This optimal angle has been calculated considering the location's latitude and the sun's position throughout the year, ensuring the best possible exposure to sunlight across all seasons.

Environmental and Weather Considerations

While Orly's location is generally favorable for solar energy production, there are some environmental and weather factors that could impact efficiency:

1. Cloud cover: The region experiences frequent cloud cover, especially during autumn and winter, which can significantly reduce solar output. To mitigate this, high-efficiency solar panels that perform well in low-light conditions should be considered.

2. Snow and frost: Winter months may bring snow and frost, which can accumulate on panels and reduce their effectiveness. Installing panels at the recommended 42-degree angle helps with natural snow shedding, and considering snow guards or regular panel cleaning can ensure optimal performance.

3. Air pollution: Orly's proximity to Paris means it may experience urban air pollution, which can create a thin film on solar panels over time. Regular cleaning and maintenance of panels can help maintain their efficiency.

Maximizing Solar Potential

To make the most of Orly's solar potential, it's crucial to focus on the high-yield months of late spring through early autumn. During this period, longer days and higher sun angles contribute to peak energy production. However, implementing a robust energy storage system can help balance the significant seasonal variations, storing excess summer energy for use during the less productive winter months.

In conclusion, while Orly's location presents some challenges for year-round solar energy production, particularly in winter, it still offers substantial potential for clean energy generation. With proper planning, optimal panel positioning, and consideration of local environmental factors, solar PV systems can be an effective and sustainable energy solution in this region.

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 Orly

Seasonal solar PV output for Latitude: 48.7411, Longitude: 2.3916 (Orly, 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 Orly, France

To maximize your solar PV system's energy output in Orly, France (Lat/Long 48.7411, 2.3916) 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 Orly, 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 Orly, 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 Orly, 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 Orly, 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 Orly, France

The area around Orly, France, located at approximately 48.7411°N latitude and 2.3916°E longitude, is characterized by a relatively flat topography typical of the Paris Basin region. This part of France is known for its gently rolling plains and low-lying terrain, with only subtle variations in elevation across the landscape. Orly itself is situated in the southern suburbs of Paris, along the banks of the Seine River. The surrounding area is predominantly urbanized, with a mix of residential, commercial, and industrial developments. The terrain is generally level, with slight undulations and gradual slopes that are barely noticeable to the casual observer. To the south and east of Orly, the landscape becomes slightly more varied, with small hills and shallow valleys interspersed throughout the countryside. However, these features are still quite modest in scale, rarely exceeding a few dozen meters in height difference from the surrounding areas.

Potential for Solar PV Development

When considering areas nearby that would be most suited to large-scale solar PV installations, several factors come into play. The relatively flat terrain in the region surrounding Orly is generally favorable for solar energy development, as it minimizes shading issues and simplifies construction processes. The most suitable areas for large-scale solar PV projects would likely be found to the south and southeast of Orly, where there is more open space and less urban development. These areas, which include parts of the Essonne and Seine-et-Marne departments, offer larger tracts of agricultural land and former industrial sites that could potentially be repurposed for solar energy production. Specific locations that might be considered include: 1. Open fields and farmlands in the vicinity of Évry and Corbeil-Essonnes, where there is a good balance between available space and proximity to existing infrastructure. 2. Former industrial sites or brownfields in the Melun area, which could be rehabilitated for solar energy production while also serving as a form of land reclamation. 3. Areas along major transportation corridors, such as the A6 and A5 autoroutes, where solar installations could potentially be integrated with existing right-of-way infrastructure. It's important to note that while the topography in these areas is generally suitable for solar PV development, other factors such as local zoning regulations, grid connection capacity, and environmental considerations would also need to be taken into account when planning any large-scale solar projects in the region.

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.