Nogent-sur-Seine, Grand Est, France presents a moderately suitable location for solar photovoltaic energy generation, though with significant seasonal variation typical of its Northern Temperate Zone position. The solar output data reveals a clear pattern of seasonal performance that potential solar installers should carefully consider.
Seasonal Solar Performance
Summer represents the peak solar generation period at Nogent-sur-Seine, Grand Est, producing 5.52 kWh per day per kW of installed capacity. This strong summer performance makes it the most productive time of year for solar energy generation. Spring follows as the second-best season with 4.91 kWh per day per kW, demonstrating that the shoulder seasons can still provide substantial energy output. Autumn shows a notable decline to 2.81 kWh per day per kW, while winter presents the most challenging period with only 1.30 kWh per day per kW. This dramatic winter reduction means that solar systems at this location will produce more than four times as much energy in summer compared to winter months.Optimal Installation Configuration
For maximum year-round energy production at Nogent-sur-Seine, Grand Est, solar panels should be installed at a fixed tilt angle of 41 degrees facing south. This angle has been calculated to optimize total annual output by accounting for the sun's varying elevation throughout the year and weighting these angles according to the actual solar irradiance potential at different times.Local Factors Affecting Solar Production
Several environmental and weather factors could potentially impact solar energy generation at Nogent-sur-Seine:- Fog and mist from the Seine River, particularly during autumn and winter months, which can reduce solar irradiance
- Increased cloud cover during the transitional seasons, contributing to the lower autumn output
- Snow accumulation on panels during winter, which can completely block energy production
- Dust and agricultural particles from surrounding farmland that can accumulate on panel surfaces
Preventative Measures for Enhanced Performance
To maximize solar energy production despite these challenges, several installation strategies can be employed:- Install panels with adequate spacing and ventilation to minimize moisture retention and promote faster drying after fog or rain
- Choose mounting systems that allow panels to be tilted at steeper angles to encourage snow shedding
- Implement regular cleaning schedules, particularly during harvest seasons when agricultural dust is prevalent
- Consider micro-inverters or power optimizers to minimize the impact when individual panels are partially shaded or soiled
- Ensure easy access for maintenance and snow removal during winter 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 Nogent-sur-Seine
Seasonal solar PV output for Latitude: 48.4938, Longitude: 3.4972 (Nogent-sur-Seine, 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 41° South in Nogent-sur-Seine, France
To maximize your solar PV system's energy output in Nogent-sur-Seine, France (Lat/Long 48.4938, 3.4972) throughout the year, you should tilt your panels at an angle of 41° 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 Nogent-sur-Seine, 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 Nogent-sur-Seine, France. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 41° 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 | 51° 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 Nogent-sur-Seine, 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 Nogent-sur-Seine, 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 Nogent-sur-Seine, France
Topographical Features of Nogent-sur-Seine
Nogent-sur-Seine sits in the Champagne region of north-central France, positioned along the banks of the Seine River as it meanders through the Aube department. The town occupies a relatively flat position within the broader Seine valley, characterized by gentle undulations and low-lying terrain that rarely exceeds 100 meters in elevation. The landscape here represents典型的 river valley topography, with the Seine creating a natural corridor through otherwise rolling countryside.
The immediate surroundings feature predominantly agricultural land, with vast open fields stretching across the gently sloping terrain. These expansive plateaus are punctuated by occasional shallow valleys carved by smaller tributaries feeding into the Seine. The region's geology consists primarily of chalk and limestone substrates covered by fertile alluvial deposits, creating the flat to gently rolling topography that defines much of the Champagne plain.
To the north and south of Nogent-sur-Seine, the landscape gradually rises into low hills and ridges, but these elevation changes remain modest, typically ranging between 80 and 200 meters above sea level. The area lacks significant mountainous terrain or dramatic elevation changes, instead presenting a relatively uniform topographical character that has been shaped by centuries of agricultural development.
Optimal Areas for Large-Scale Solar Development
The extensive agricultural plateaus surrounding Nogent-sur-Seine present excellent opportunities for large-scale solar photovoltaic installations. The flat to gently sloping terrain eliminates concerns about shading from topographical features while providing stable ground conditions for mounting systems. These open agricultural areas, particularly those extending eastward and southward from the town, offer the most promising sites due to their minimal obstructions and favorable orientation possibilities.
The areas southeast of Nogent-sur-Seine, toward the communes of Trainel and Villenauxe-la-Grande, feature particularly suitable terrain. This region consists of broad, relatively flat agricultural fields with excellent southern exposure and minimal interference from existing infrastructure. The gentle slopes in this area provide natural drainage while maintaining optimal angles for solar panel positioning.
North of the Seine, the agricultural plains extending toward Romilly-sur-Seine also present favorable conditions for solar development. These areas benefit from open exposure and relatively uniform topography, with sufficient space to accommodate large-scale installations without significant grading requirements. The existing agricultural road network in these areas would facilitate construction access while minimizing environmental disruption.
The low-lying areas immediately adjacent to the Seine River itself would be less suitable for major solar installations due to potential flooding concerns and the presence of riparian vegetation. However, the elevated agricultural terraces that rise gently from the river valley provide ideal alternative locations, combining good drainage with excellent solar exposure potential.
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: Thursday 31st of July 2025
Last Updated: Friday 8th of August 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.




