Carquefou, Pays de la Loire, France, situated at latitude 47.3007 and longitude -1.496, presents a varied landscape for solar energy production throughout the year. This location in the Northern Temperate Zone experiences significant seasonal fluctuations in solar output, which impacts the overall efficiency of photovoltaic (PV) systems.

Seasonal Solar Performance

The solar energy potential in Carquefou varies dramatically across seasons. Summer stands out as the most productive period, with an average daily output of 5.68 kWh per kW of installed solar capacity. Spring closely follows with 5.34 kWh/day, making these two seasons ideal for solar energy generation. Autumn sees a notable decrease to 3.07 kWh/day, while winter experiences a significant drop to just 1.42 kWh/day per kW installed.

This stark contrast between summer and winter output highlights the challenges of relying solely on solar power in this region year-round. However, the strong performance during spring and summer months can help offset the lower production in autumn and winter.

Optimal Panel Installation

To maximize year-round solar energy production in Carquefou, Pays de la Loire, fixed solar panels should be installed at a tilt angle of 41 degrees facing south. This angle is calculated to optimize the overall annual energy yield, taking into account the sun's changing position throughout the year and the location's specific latitude.

Environmental and Weather Considerations

While Carquefou's climate is generally favorable for solar energy production, there are some factors that could potentially impact system performance:

1. Cloud cover: The region experiences a fair amount of cloudy days, especially during autumn and winter, which can reduce solar output. To mitigate this, high-efficiency panels that perform well in low-light conditions should be considered.

2. Rainfall: Carquefou receives moderate rainfall throughout the year. While rain can help keep panels clean, it's important to ensure proper drainage to prevent water accumulation on the panels. Installing panels at the recommended tilt angle will also aid in natural cleaning and drainage.

3. Temperature variations: Although not extreme, temperature fluctuations between seasons can affect panel efficiency. Using temperature-resistant panels and ensuring proper ventilation behind the panels can help maintain optimal performance.

By taking these factors into account and implementing appropriate measures during installation, solar PV systems in Carquefou can be optimized to harness the available solar energy effectively, particularly during the more productive spring and summer 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 Carquefou

Seasonal solar PV output for Latitude: 47.3007, Longitude: -1.496 (Carquefou, 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 Carquefou, France

To maximize your solar PV system's energy output in Carquefou, France (Lat/Long 47.3007, -1.496) 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 Carquefou, 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 Carquefou, 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
31° South in Summer	51° South in Autumn	61° South in Winter	40° 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 Carquefou, 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 Carquefou, 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 Carquefou, France

The area surrounding Carquefou, France, located at 47.3007 degrees north latitude and 1.496 degrees west longitude, is characterized by a gently rolling landscape typical of the Loire-Atlantique department in western France. This region is part of the Loire Valley, known for its relatively flat terrain interspersed with low hills and shallow valleys. Carquefou itself sits on a slight elevation, with the land gradually sloping down towards the Loire River to the south. The topography is generally mild, with no dramatic changes in elevation. The area is dotted with small streams and tributaries that feed into the Loire, creating a network of shallow waterways throughout the landscape. To the north and east of Carquefou, the terrain becomes slightly more undulating, with modest hills and plateaus. These areas are primarily used for agriculture, with fields and pastures dominating the landscape. The soil in this region is generally fertile, supporting a mix of crops and livestock farming.

Potential for Large-Scale Solar PV

When considering areas nearby that would be most suited to large-scale solar photovoltaic (PV) installations, several factors come into play. The gently rolling terrain in the vicinity of Carquefou offers some promising locations for solar energy development. The areas to the north and east of Carquefou, where the land rises slightly, could be particularly well-suited for solar PV farms. These elevated areas typically receive more direct sunlight throughout the day and are less likely to be shaded by surrounding features. The gradual slopes in these regions can also be advantageous, as they allow for optimal panel positioning to maximize solar exposure. Agricultural lands that are less productive or fallow fields could be repurposed for solar energy production. These areas often have the advantage of being relatively flat and clear of obstructions, making them ideal for large-scale installations. It's important to note that while the topography around Carquefou is generally favorable for solar PV, other factors such as local zoning regulations, grid connectivity, and environmental considerations would also need to be taken into account when planning any large-scale solar projects in the region.

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.