Domessin, France, situated at coordinates 45.5515, 5.7054, offers a moderate potential for solar energy generation throughout the year. This location in the Northern Temperate Zone experiences significant seasonal variations in solar output, which impacts the overall efficiency of photovoltaic (PV) systems.

Seasonal Solar Performance

The solar energy production in Domessin varies considerably across the four seasons. Summer stands out as the most productive period, with an average daily output of 6.24 kWh per kW of installed solar capacity. Spring follows closely, generating 5.37 kWh/day. Autumn sees a noticeable decrease to 3.17 kWh/day, while winter experiences the lowest output at 1.68 kWh/day.

This pattern clearly indicates that the most ideal times for solar energy generation in Domessin are during the spring and summer months, typically from April through September. During these periods, longer daylight hours and higher sun angles contribute to increased solar panel efficiency.

Optimizing Solar Panel Installation

To maximize year-round solar energy production in Domessin, fixed solar panels should be installed at a tilt angle of 39 degrees facing south. This optimal angle has been calculated considering the location's latitude and seasonal sun positions, ensuring the best possible exposure to sunlight throughout the year.

Environmental and Weather Considerations

While Domessin's location is generally favorable for solar energy production, there are some environmental and weather factors that could potentially impact solar panel efficiency:

1. Snow accumulation in winter months can temporarily reduce panel output.
2. Cloudy or overcast days, more common in autumn and winter, may decrease energy production.

To mitigate these issues, consider implementing the following preventative measures:

• Install panels at a steeper angle to encourage snow sliding off
• Use high-efficiency panels that perform better in low-light conditions
• Implement a regular cleaning schedule to remove any debris or snow
• Consider a tracking system to maximize sun exposure throughout the day

By addressing these factors and optimizing the installation, solar PV systems in Domessin can achieve improved year-round performance, despite the seasonal variations in solar output.

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 Domessin

Seasonal solar PV output for Latitude: 45.5515, Longitude: 5.7054 (Domessin, 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 Domessin, France

To maximize your solar PV system's energy output in Domessin, France (Lat/Long 45.5515, 5.7054) 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 Domessin, 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 Domessin, 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
29° 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 Domessin, 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 Domessin, 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 Domessin, France

The topography around Domessin, France, is characterized by a diverse landscape that combines rolling hills, valleys, and plateaus. Situated in the Savoie department of the Auvergne-Rhône-Alpes region, Domessin is nestled in an area where the foothills of the French Alps begin to rise. The terrain in this region is generally undulating, with elevations ranging from around 300 to 600 meters above sea level. To the east of Domessin, the land gradually ascends towards the Chartreuse Mountains, part of the French Pre-Alps. This area features steeper slopes and more rugged terrain, with forests covering much of the hillsides. To the west, the landscape becomes more open, with gentler hills and broader valleys that are often used for agriculture. The immediate vicinity of Domessin includes a mix of agricultural fields, small woodlands, and scattered rural settlements. The Guiers River flows nearby, carving a valley through the landscape and influencing the local topography. This river valley provides some flatter areas amidst the otherwise hilly terrain.

Suitability 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 would combine favorable topography with minimal environmental and agricultural impact. The flatter, open areas to the west of Domessin present the most promising opportunities for solar PV development. These areas often have gentler slopes and fewer obstructions, which are ideal for maximizing solar exposure. Additionally, some of the elevated plateaus in the region could offer good potential, as they may receive more consistent sunlight throughout the day. However, it's important to note that much of the land around Domessin is used for agriculture or is forested. Any large-scale solar development would need to carefully balance energy production goals with the preservation of agricultural land and natural habitats. The most suitable areas would likely be those that are already somewhat degraded or of lower agricultural value. Some specific locations that might be considered include: 1. Abandoned or underused agricultural fields on the outskirts of nearby towns. 2. Gently sloping hillsides that are not currently forested or used for high-value agriculture. 3. Former industrial sites or quarries that have already been disturbed and may have good sun exposure. It's worth noting that while the region around Domessin has potential for solar PV development, the overall topography and land use patterns mean that any large-scale installations would need to be carefully planned and likely distributed across multiple smaller sites rather than concentrated in one expansive area.

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.