Vichy, France, situated at latitude 46.1285 and longitude 3.4142, presents a mixed picture for solar energy generation throughout the year. Located in the Northern Temperate Zone, this charming town experiences significant seasonal variations in solar potential.

Seasonal Solar Performance

Summer stands out as the prime season for solar energy production in Vichy, with an impressive daily output of 5.78 kWh per kW of installed solar capacity. Spring follows closely behind, generating 5.04 kWh per day. These seasons offer excellent conditions for maximizing solar energy production.

However, the picture changes dramatically during the colder months. Autumn sees a substantial drop in solar output, producing 3.03 kWh per day. Winter presents the greatest challenge, with daily production plummeting to a mere 1.47 kWh, less than a third of the spring output.

Optimizing Solar Panel Installation

To maximize year-round solar energy production in Vichy, fixed solar panels should be tilted at an angle of 39 degrees facing south. This optimal angle takes into account the town's latitude and seasonal sun positions, ensuring the best possible exposure throughout the year.

Environmental and Weather Considerations

While Vichy's location is generally favorable for solar energy, there are some factors that could impact production:

• Cloud cover: Vichy experiences significant cloud cover, especially during winter months, which can reduce solar efficiency.
• Snowfall: Winter snowfall, though not extreme, can temporarily cover panels and decrease output.

To mitigate these issues, consider installing panels with anti-soiling coatings to reduce snow accumulation and ensure easy cleaning. Additionally, using microinverters or power optimizers can help maintain efficiency even when some panels are partially shaded or covered.

Conclusion

While Vichy's location presents challenges for year-round solar energy production, particularly in winter, the strong performance during spring and summer makes it a viable option. With proper installation techniques and equipment choices, solar PV systems can still provide significant energy contributions, especially during the warmer months.

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 Vichy

Seasonal solar PV output for Latitude: 46.1285, Longitude: 3.4142 (Vichy, 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 39° South in Vichy, France

To maximize your solar PV system's energy output in Vichy, France (Lat/Long 46.1285, 3.4142) throughout the year, you should tilt your panels at an angle of 39° 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 Vichy, 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 Vichy, France. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 39° South tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
30° South in Summer	49° South in Autumn	60° South in Winter	38° 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 Vichy, 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 Vichy, 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 Vichy, France

The area surrounding Vichy, France, located at 46.1285°N latitude and 3.4142°E longitude, is characterized by a diverse and picturesque topography. Situated in the heart of the Auvergne region, Vichy is nestled in the Allier River valley, which provides a relatively flat landscape in the immediate vicinity of the town. As one moves away from the river valley, the terrain becomes more varied and undulating. To the west and southwest of Vichy, the land gradually rises into the foothills of the Chaîne des Puys, a range of dormant volcanoes that form part of the Massif Central. These hills and low mountains create a rolling landscape with gentle slopes and occasional steeper inclines. To the east and northeast of Vichy, the topography remains relatively flat, with occasional low hills and plateaus. This area is part of the Limagne plain, a fertile agricultural region known for its rich soils and gentle terrain. The landscape here is dotted with small villages, farmlands, and patches of woodland.

Suitability for Large-Scale Solar PV

When considering areas nearby Vichy for large-scale solar photovoltaic (PV) installations, several factors come into play. The most suitable locations would be those that offer a combination of favorable topography, ample sunlight exposure, and minimal environmental impact. The Limagne plain to the east and northeast of Vichy presents promising opportunities for solar PV development. Its relatively flat terrain and open spaces make it ideal for large-scale installations. The lack of significant geographical obstacles means that solar panels could be easily arranged to maximize sun exposure throughout the day. Some of the gently sloping hillsides to the west and southwest of Vichy could also be suitable for solar PV projects. South-facing slopes, in particular, would receive excellent sun exposure. However, care would need to be taken to avoid areas with steeper gradients or those that are environmentally sensitive. It's important to note that while the topography around Vichy offers potential for solar PV development, other factors such as local regulations, grid connectivity, and land use considerations would also play crucial roles in determining the most suitable locations. Additionally, any large-scale solar projects would need to be balanced with the region's agricultural needs and natural beauty, which are vital to its economy and cultural identity.

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.