Dardilly, France, situated in the Northern Temperate Zone, presents a mixed opportunity for solar energy generation throughout the year. This location experiences significant seasonal variations in solar output, which affects the overall efficiency of photovoltaic (PV) systems.

Seasonal Solar Performance

The solar energy production in Dardilly fluctuates considerably across seasons. Summer stands out as the most productive period, with an impressive daily output of 6.24 kWh per kW of installed solar capacity. Spring follows closely, generating 5.37 kWh per day. However, autumn sees a substantial decrease to 3.17 kWh per day, while winter performance drops dramatically to just 1.68 kWh daily.

These figures indicate that Dardilly is most suitable for solar energy generation during the warmer months, particularly from late spring through early autumn. During this period, longer days and higher sun angles contribute to increased solar irradiance, boosting PV system efficiency.

Optimal Panel Installation

To maximize year-round solar energy production in Dardilly, fixed solar panels should be installed at a tilt angle of 39 degrees facing south. This angle is calculated to capture the most sunlight throughout the year, considering the location's latitude and seasonal sun paths.

Environmental and Weather Factors

While Dardilly's location is generally favorable for solar energy, there are some factors that could potentially impact solar production:

1. Cloud cover: The region experiences cloudy conditions, especially during autumn and winter, which can reduce solar output.
2. Fog: Morning fog, common in the area, may delay the start of peak solar production on some days.

To mitigate these challenges, consider implementing the following measures:

• Use high-efficiency solar panels that perform well in low-light conditions
• Install a solar tracking system to maximize exposure to available sunlight
• Implement regular cleaning and maintenance to ensure optimal panel performance

In conclusion, while Dardilly's location presents some challenges for year-round solar energy production, proper system design and installation can help maximize output during peak seasons and mitigate the effects of less favorable 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 Dardilly

Seasonal solar PV output for Latitude: 45.8061, Longitude: 4.7492 (Dardilly, 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 39° South in Dardilly, France

To maximize your solar PV system's energy output in Dardilly, France (Lat/Long 45.8061, 4.7492) throughout the year, you should tilt your panels at an angle of 39° 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 Dardilly, 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 Dardilly, France. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 39° 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	49° South in Autumn	59° South in Winter	38° 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 Dardilly, 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 Dardilly, 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 Dardilly, France

Dardilly, France, situated at 45.8061°N latitude and 4.7492°E longitude, is characterized by a diverse and gently undulating topography. The area around Dardilly is part of the Monts d'Or region, which features a mix of rolling hills, shallow valleys, and plateaus. The landscape is predominantly rural, with a blend of agricultural fields, woodlands, and small settlements dotting the countryside. The terrain in and around Dardilly gradually rises from the Saône River valley to the east, reaching elevations of around 300 to 400 meters above sea level in the nearby hills. This gentle ascent creates a picturesque setting with varied slopes and aspects. The area is crisscrossed by small streams and tributaries that have carved shallow valleys over time, contributing to the undulating nature of the landscape.

Potential for Large-Scale Solar PV

When considering areas nearby that would be most suited to large-scale solar PV installations, several factors come into play. The ideal locations for solar farms typically include: 1. Flat or gently sloping land: The plateaus and less steep hillsides to the west and northwest of Dardilly could offer suitable terrain for solar panel arrays. These areas provide relatively even surfaces that can accommodate large installations without significant earthworks. 2. South-facing slopes: Given the northern hemisphere location, south-facing slopes in the region would receive more direct sunlight throughout the day. The southern and southeastern aspects of the Monts d'Or hills could be particularly advantageous for solar energy capture. 3. Open areas with minimal shading: Agricultural lands or fallow fields that are not heavily forested would be prime candidates for solar farms. These areas are likely to be found in the broader valleys and on the plateaus surrounding Dardilly. 4. Proximity to existing infrastructure: Areas close to roads and power transmission lines would be more cost-effective for developing solar projects. The regions near major transportation corridors, such as the A6 motorway to the east of Dardilly, might offer this advantage. 5. Less productive agricultural land: While the region is known for its agriculture, any marginal or less productive farmland could be repurposed for solar energy production without significantly impacting food production. It's important to note that while the topography around Dardilly offers potential for solar PV development, any large-scale projects would need to balance energy production goals with environmental conservation, agricultural needs, and local zoning regulations. The most suitable areas would likely be those that combine favorable topography with minimal impact on the local ecosystem and economy.

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.