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Flag of FranceSolar PV Analysis of Le Neubourg, France

Graph of hourly avg kWh electricity output per kW of Solar PV installed in Le Neubourg, France (by season)

Le Neubourg, France presents a moderately suitable location for solar photovoltaic energy generation, though with significant seasonal variations typical of its Northern Temperate Zone climate. Located at coordinates 49.1538°N, 0.9132°E, this area experiences the characteristic solar patterns of northern France.

Seasonal Solar Performance

The solar energy output at Le Neubourg varies dramatically throughout the year. Summer months deliver the strongest performance at 5.40 kWh per day per kW of installed solar capacity, making this the prime season for solar generation. Spring follows closely with 5.06 kWh per day per kW, indicating excellent conditions during these warmer months when the sun is higher in the sky and daylight periods are longer. Autumn sees a notable decline to 2.67 kWh per day per kW, while winter months present the most challenging conditions with only 1.18 kWh per day per kW. This represents more than a four-fold difference between peak summer and winter production, highlighting the seasonal nature of solar generation at this latitude.

Optimal Panel Configuration

For maximum year-round energy production at Le Neubourg, solar panels should be installed at a fixed tilt angle of 42 degrees facing south. This angle has been calculated to optimize total annual output by accounting for the sun's varying position throughout the seasons and the area's specific latitude.

Environmental and Weather Factors

Several local factors could potentially impact solar production at this location. The maritime climate of Normandy brings frequent cloud cover and overcast conditions, particularly during autumn and winter months, which can significantly reduce solar irradiance reaching the panels. Morning fog and mist are common in this region, especially during cooler months and in areas near water bodies. This can delay the start of effective solar generation each day and reduce overall output during affected periods. The area's agricultural landscape means that dust and pollen can accumulate on solar panels, particularly during spring and summer months when farming activities are most intense. Additionally, the region experiences moderate rainfall throughout the year, which while helpful for natural panel cleaning, can also mean frequent periods of reduced solar generation.

Preventative Measures for Enhanced Performance

To maximize solar energy production despite these challenges, several installation strategies should be considered:
  • Install panels with adequate spacing to minimize shading from accumulated debris or snow
  • Use mounting systems that allow for proper drainage to prevent water pooling
  • Consider anti-reflective coatings on panels to maximize light absorption during overcast conditions
  • Implement regular cleaning schedules, particularly during high-pollen seasons
  • Ensure proper ventilation behind panels to maintain optimal operating temperatures
The location's moderate wind conditions can actually benefit solar installations by helping to keep panels cool and clear of debris, though mounting systems should be designed to withstand occasional stronger weather systems that can affect the region. Overall, while Le Neubourg faces typical northern European solar challenges, proper installation techniques and maintenance can help ensure reliable energy production, particularly during the highly productive spring and summer seasons.

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 Le Neubourg

Seasonal solar PV output for Latitude: 49.1538, Longitude: 0.9132 (Le Neubourg, 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:

Summer
Average 5.40kWh/day in Summer.
Autumn
Average 2.67kWh/day in Autumn.
Winter
Average 1.18kWh/day in Winter.
Spring
Average 5.06kWh/day in Spring.

 

Ideally tilt fixed solar panels 42° South in Le Neubourg, France

To maximize your solar PV system's energy output in Le Neubourg, France (Lat/Long 49.1538, 0.9132) 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.

The sun
At Latitude: 49.1538, Longitude: 0.9132, the ideal angle to tilt panels is 42° South

Seasonally adjusted solar panel tilt angles for Le Neubourg, 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 Le Neubourg, 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 41° South in Spring

Assuming you can modify the tilt angle of your solar PV panels throughout the year, you can optimize your solar generation in Le Neubourg, France as follows: In Summer, set the angle of your panels to 33° facing South. In Autumn, tilt panels to 52° facing South for maximum generation. During Winter, adjust your solar panels to a 62° angle towards the South for optimal energy production. Lastly, in Spring, position your panels at a 41° angle facing South to capture the most solar energy in Le Neubourg, France.

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 Le Neubourg, 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 Le Neubourg, 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.






Please enter information above to calculate panel spacing.

Topography for solar PV around Le Neubourg, France

Topography Around Le Neubourg

Le Neubourg sits in the heart of the Eure department in Normandy, characterized by gently rolling countryside typical of the Seine valley region. The landscape features broad, undulating plains with modest elevation changes, creating a terrain that rises and falls in gentle waves across the agricultural heartland of northern France. The town itself occupies a slight elevation on a plateau, surrounded by fertile valleys that have been shaped by centuries of river activity and glacial deposits. The immediate area around Le Neubourg consists primarily of open farmland with large, unobstructed fields stretching toward the horizon. These expansive agricultural plots are interspersed with small copses of deciduous woodland and hedgerows that provide natural boundaries between properties. The terrain slopes gradually toward the Seine River valley to the north, while rising more gently toward the higher ground of the Norman countryside to the south and east.

Drainage and Land Use Patterns

The region's drainage patterns follow the natural topography, with small streams and tributaries flowing northward toward the Seine. These waterways have carved shallow valleys through the landscape, creating a series of low ridges and gentle depressions that define the local geography. The soil composition, largely consisting of fertile alluvial deposits and chalk-based substrates, supports intensive agriculture across most of the area. Traditional Norman bocage landscape elements, including hedgerows and scattered woodlands, break up the otherwise open character of the countryside. However, modern agricultural practices have resulted in the consolidation of many smaller fields into larger parcels, creating extensive areas of relatively uniform, flat to gently sloping terrain.

Optimal Areas for Large-Scale Solar Development

The most suitable locations for large-scale solar photovoltaic installations around Le Neubourg would be the expansive agricultural plateaus that extend southeast and southwest of the town. These areas offer several key advantages, including relatively flat terrain with gentle south-facing slopes that would maximize solar exposure throughout the day. The consolidated field systems in these directions provide large, unobstructed parcels of land with minimal shading from trees or buildings. The plateau areas immediately south of Le Neubourg present particularly favorable conditions, where the land rises gently before leveling out into broad, open expanses. These elevated positions benefit from unimpeded access to sunlight while maintaining the stable, well-drained ground conditions necessary for solar infrastructure. The existing agricultural road network in these areas would also facilitate construction and maintenance access. Areas to the west and southwest of the town, toward the communes of Harcourt and Brionne, offer similar advantages with their combination of gentle topography and large field systems. The slightly elevated nature of these locations, combined with their southern exposure, creates ideal conditions for solar energy generation while remaining accessible for development and grid connection. The river valleys and lower-lying areas to the north would be less suitable due to their potential for seasonal moisture retention and the increased likelihood of morning fog or mist that could affect panel efficiency. Additionally, these areas often contain more fragmented land parcels and greater tree coverage, which would create shading issues and complicate large-scale installation projects.

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

Article: Solar PV Analysis of Le Neubourg, France
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Tuesday 22nd of July 2025
Last Updated: Thursday 7th 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.

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