Argentan, France, situated at latitude 48.75° North and longitude -0.0177° East, offers varying potential for solar PV energy generation throughout the year. This location in the Northern Temperate Zone experiences significant seasonal fluctuations in solar energy production.

Seasonal Solar Production

Solar panels in Argentan perform best during the warmer months. Summer yields the highest energy output at 5.47kWh per day for each kilowatt of installed capacity. Spring follows closely behind with 5.15kWh/day per kW. These two seasons represent the prime generating periods, accounting for significantly more production than the colder months.

Autumn sees a substantial decrease to 2.84kWh/day per kW, while winter production drops dramatically to just 1.31kWh/day per kW. This winter output is less than a quarter of what can be generated during peak summer conditions.

Optimal Panel Installation

For fixed solar panel installations in Argentan, the ideal tilt angle to maximize year-round energy production is 42 degrees facing South. This angle has been calculated by analyzing daily solar elevation angles at this specific latitude, weighted according to daily PV potential, and accounting for Earth's elliptical orbit.

Environmental and Weather Considerations

Several factors could potentially impact solar production in Argentan. Normandy's climate brings frequent cloud cover and rainfall, particularly during autumn and winter months, which corresponds with the lower production figures for these seasons. Occasional fog and mist in this region can further reduce solar irradiance reaching panels.

Snow accumulation in winter, though not typically heavy in this region, can temporarily cover panels and reduce output during the already low-producing winter months. Additionally, the relatively northern latitude means shorter winter days, contributing to the seasonal production disparity.

Mitigation Strategies

To maximize solar production in Argentan despite these challenges, consider these preventative measures:

• Install panels with self-cleaning glass or hydrophobic coatings to mitigate effects of frequent precipitation
• Ensure panels are installed at the recommended 42-degree tilt to optimize year-round production
• Consider snow-shedding mounting systems that facilitate natural clearing of light snow
• Implement regular maintenance schedules, particularly before winter and spring to ensure panels are clean and functioning optimally
• Use microinverters or power optimizers to minimize the impact of partial shading from clouds

With proper installation and maintenance, solar PV systems in Argentan can provide substantial energy production, particularly from March through September, despite the significant seasonal variations.

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 Argentan

Seasonal solar PV output for Latitude: 48.75, Longitude: -0.0177 (Argentan, 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 Argentan, France

To maximize your solar PV system's energy output in Argentan, France (Lat/Long 48.75, -0.0177) 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 Argentan, 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 Argentan, 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

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 Argentan, 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 Argentan, 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 Argentan, France

The region around Argentan, situated in the Orne department of Normandy, France, presents a diverse and gently undulating topography. This area lies within the Paris Basin's western edge, where the landscape transitions from the flat plains of central Normandy to the more pronounced relief of the Norman hills.

Topographical Features

Argentan itself sits in a shallow valley formed by the Orne River, which flows northward through the town. The surrounding countryside is characterized by rolling hills with modest elevations, typically ranging between 150 and 250 meters above sea level. This gentle relief creates a patchwork landscape of open fields, scattered woodlands, and small river valleys. To the west of Argentan, the terrain gradually rises toward the foothills of the Armorican Massif, an ancient mountain range now worn down to modest heights. This area, known as the Norman bocage, features more pronounced hills and valleys with hedgerows dividing agricultural fields. The eastern side of Argentan opens to the Plains of Argentan, a more level expanse that forms part of the agricultural heartland of Normandy. This area presents relatively flat terrain with occasional gentle swells and shallow depressions, offering extensive open spaces.

Soil and Surface Conditions

The soils around Argentan are predominantly composed of limestone and clay-limestone mixtures, typical of the Paris Basin. In valley bottoms, particularly along the Orne River and its tributaries, alluvial deposits create fertile but occasionally flood-prone zones. The higher ground typically features thinner soils over limestone or chalk bedrock.

Potential Areas for Solar PV Development

Considering the topographical constraints and advantages, several areas near Argentan show promise for large-scale solar photovoltaic installations: The Plains of Argentan to the east and northeast of the town offer the most favorable conditions. These relatively flat areas provide good solar exposure with minimal shadowing effects from terrain features. The gently sloping fields in this region would require minimal grading work for installation of solar arrays. The elevated plateaus between the small river valleys, particularly to the southeast of Argentan, present good potential sites. These locations combine reasonable flatness with slightly elevated positions that receive less morning fog than the valley bottoms. Some of the more gradual south-facing slopes of the rolling hills to the west could be suitable, particularly where agricultural productivity is lower. These locations benefit from optimal sun angles, though installation costs might be higher due to the need for terrain adjustments.

Topographical Limitations

Several aspects of the local topography present challenges for solar development. The valley bottoms, particularly along the Orne River, experience more frequent fog conditions during autumn and winter mornings, which would reduce solar efficiency. These areas also face potential flooding issues that could complicate infrastructure development. The more pronounced hills of the western approaches to the Armorican Massif present installation challenges due to steeper slopes and more fragmented land parcels divided by hedgerows and small woodlands. Additionally, the Norman climate brings considerable cloud cover throughout the year, which affects solar potential regardless of topographical advantages. The most promising sites would be those that combine good drainage, minimal shadowing from surrounding terrain features, and accessibility for construction and maintenance. The moderately varied topography around Argentan ultimately offers several viable options for solar development, with the eastern plains representing the most straightforward opportunity for large-scale installations from a purely topographical perspective.

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.