Saivres, France, located in the Northern Temperate Zone, presents a varied landscape for solar energy generation throughout the year. This location experiences significant seasonal fluctuations in solar power output, which is typical for its latitude.
Seasonal Solar Performance
Summer stands out as the peak season for solar energy production in Saivres, with an impressive daily output of 6.22 kWh per kW of installed solar capacity. Spring follows closely behind, generating 5.74 kWh/day. These seasons offer excellent conditions for solar power generation, with long daylight hours and generally clearer skies.
Autumn sees a noticeable decrease in solar output, dropping to 3.30 kWh/day. This reduction is due to shorter days and potentially more cloud cover. Winter presents the greatest challenge for solar energy production, with a significant drop to just 1.62 kWh/day. The low winter output is a result of shorter days, lower sun angle, and typically cloudier weather.
Optimal Panel Installation
For fixed solar panel installations in Saivres, the ideal tilt angle to maximize year-round production is 40 degrees facing South. This angle is calculated to optimize solar capture across all seasons, balancing the high summer sun with the lower winter sun angle.
Environmental Considerations
While Saivres doesn't face extreme environmental challenges for solar production, there are some factors to consider:
- Winter snow: Occasional snowfall could temporarily reduce panel efficiency. Installing panels at the recommended 40-degree angle helps snow slide off more easily.
- Autumn leaf fall: Nearby deciduous trees could drop leaves onto panels. Regular maintenance and strategic panel placement can mitigate this issue.
To maximize solar energy production in Saivres, consider using high-efficiency panels that perform well in lower light conditions, especially for the autumn and winter months. Additionally, implementing a solar tracking system could significantly boost energy output, particularly during the productive spring and summer seasons.
Overall, while Saivres experiences seasonal variations in solar output, it remains a viable location for solar PV installations, especially when optimized for local conditions.
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 Saivres
Seasonal solar PV output for Latitude: 46.4319, Longitude: -0.2293 (Saivres, 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 40° South in Saivres, France
To maximize your solar PV system's energy output in Saivres, France (Lat/Long 46.4319, -0.2293) throughout the year, you should tilt your panels at an angle of 40° 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 Saivres, 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 Saivres, France. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 40° 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 | 50° South in Autumn | 61° South in Winter | 39° 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 Saivres, 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 Saivres, France.
Our calculation method
- Solar Position:
We determine the Sun's position on the Winter solstice using the location's latitude and solar declination. - Shadow Projection:
We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle. - 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 Saivres, France
The area around Saivres, France, is characterized by gently rolling hills and open countryside typical of the Nouvelle-Aquitaine region. The landscape is primarily rural, with a mix of agricultural fields, small woodlands, and scattered settlements. The terrain is generally low-lying, with subtle elevation changes that create a softly undulating topography.
The nearby Sèvre Niortaise river valley influences the local landscape, contributing to some minor variations in elevation. However, there are no dramatic hills or steep slopes in the immediate vicinity of Saivres. The area is part of the larger Poitou Plains, known for its relatively flat to mildly hilly terrain.
Regarding areas suitable for large-scale solar PV (photovoltaic) installations, several factors make the region around Saivres potentially favorable:
1. The gently sloping terrain provides good opportunities for solar panel placement without requiring extensive land modification.
2. The abundance of agricultural land means there are large, open spaces that could potentially be utilized for solar farms without significant disruption to natural habitats.
3. The region experiences a moderate amount of sunshine throughout the year, making it suitable for solar energy generation.
Specifically, areas to the south and southwest of Saivres might be most suited for large-scale solar PV installations. These locations tend to have slightly more open, flatter terrain with fewer obstructions like forests or built-up areas. Additionally, south-facing slopes, even gentle ones, can provide optimal angles for solar panels to capture sunlight throughout the day.
However, it's important to note that any large-scale solar project would require detailed site-specific assessments, considering factors such as local zoning regulations, grid connectivity, and environmental impact studies. The suitability of any particular location would need to be confirmed through professional surveys and in consultation with local authorities and landowners.
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
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Tuesday 20th of August 2024
Last Updated: Monday 21st of July 2025
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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.




