San Daniele del Friuli, Italy offers varying potential for solar PV energy generation throughout the year. This northern Italian location experiences significant seasonal fluctuations in solar production that prospective solar panel owners should consider.

Seasonal Solar Production

The solar energy output at this location shows marked seasonal differences. Summer provides the highest yield at 6.14kWh per day for each kilowatt of installed capacity. Spring follows with a respectable 4.69kWh/day, while autumn drops to 3.13kWh/day. Winter shows the lowest production at just 1.94kWh/day per installed kilowatt.

These figures reveal that San Daniele del Friuli is most productive for solar energy from late spring through early autumn. The substantial difference between summer and winter production (summer generates more than three times the winter output) indicates that supplementary energy sources may be necessary during the colder months.

Optimal Panel Installation

For fixed solar panel installations in San Daniele del Friuli, the ideal tilt angle is 40 degrees facing South. This specific angle maximizes year-round energy production by optimizing the panel's exposure to the sun's rays throughout the changing seasons.

Environmental Considerations

Several environmental factors could affect solar production at this location:

• Fog and mist: The Friuli region can experience fog, particularly in autumn and winter months, which may temporarily reduce solar efficiency.
• Alpine weather patterns: Due to its proximity to the Alps, San Daniele can experience rapid weather changes that might affect consistent solar production.
• Snowfall: Winter snowfall can cover panels and reduce output during already low-production months.

Preventative Measures

To maximize solar energy production in San Daniele del Friuli, consider these installation strategies:

• Install panels at the recommended 40-degree tilt to optimize year-round production and promote natural snow shedding in winter.
• Include snow removal systems or easy access for manual clearing during winter months.
• Consider micro-inverters or power optimizers to minimize production losses when certain panels are partially shaded.
• Implement regular cleaning maintenance, especially after foggy periods, to ensure maximum light absorption.

While San Daniele del Friuli may not be among the most ideal locations for year-round solar production, its strong summer and spring performance makes solar PV a viable renewable energy option, particularly if supplemented with other energy sources during the lower-production winter 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 338 locations across Italy. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.

Link: Solar PV potential in Italy by location

Solar output per kW of installed solar PV by season in San Daniele Del Friuli

Seasonal solar PV output for Latitude: 46.1566, Longitude: 13.0117 (San Daniele Del Friuli, Italy), 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 40° South in San Daniele Del Friuli, Italy

To maximize your solar PV system's energy output in San Daniele Del Friuli, Italy (Lat/Long 46.1566, 13.0117) throughout the year, you should tilt your panels at an angle of 40° 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 San Daniele Del Friuli, Italy

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 San Daniele Del Friuli, Italy. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 40° 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	60° South in Winter	39° 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 San Daniele Del Friuli, Italy

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 San Daniele Del Friuli, Italy.

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 San Daniele Del Friuli, Italy

San Daniele del Friuli sits on a picturesque hill in the northeastern Italian region of Friuli-Venezia Giulia, approximately 25 kilometers northwest of Udine. This charming town occupies a strategic position at the transition between the pre-Alpine foothills and the expansive Friulian plain.

Topographical Features

The town itself perches atop a rounded hill at approximately 252 meters above sea level, offering panoramic views of the surrounding landscape. This elevated position has historically provided both defensive advantages and favorable living conditions. The hill of San Daniele rises distinctly from the surrounding terrain, creating a natural landmark visible from considerable distances across the plain. To the north of San Daniele, the landscape gradually transitions into the foothills of the Carnic Pre-Alps. These rolling hills become progressively higher and more pronounced as one moves northward, eventually giving way to the more dramatic Alpine mountains along the border with Austria. This hilly northern terrain features numerous valleys, small plateaus, and varying elevations, creating a diverse topographical mosaic. Southward from San Daniele stretches the wide Friulian plain, characterized by relatively flat terrain that extends toward the Adriatic Sea. This alluvial plain was formed by centuries of deposits from the region's rivers, primarily the Tagliamento River. The Tagliamento, one of Italy's last morphologically intact Alpine rivers, flows just west of San Daniele in a braided pattern, carving a wide riverbed through the landscape. The eastern and western approaches to San Daniele feature gentle hills and undulating countryside, dotted with smaller settlements, agricultural fields, and patches of woodland. These intermediate zones provide a gradual transition between the steeper pre-Alpine terrain and the flatter plain.

Soil and Vegetation

The region's soil composition varies significantly with the topography. The hillsides around San Daniele contain a mix of clay and limestone, while the plain areas feature more alluvial deposits of sand, gravel, and silt. This geological diversity has influenced both natural vegetation patterns and agricultural practices throughout history. The natural vegetation includes deciduous forests on the northern slopes, with oak, chestnut, and beech trees being common. The flatter areas have been extensively cultivated for centuries, with vineyards occupying many of the hillsides and field crops dominating the plains.

Solar PV Potential Areas

When considering areas suitable for large-scale solar photovoltaic installations near San Daniele del Friuli, several factors must be evaluated including topography, land use, grid access, and environmental considerations. The most promising areas for large-scale solar development would be found in the Friulian plain south of San Daniele. This region offers several advantages: The flat terrain minimizes installation costs and complexity compared to hilly or mountainous areas. Construction, maintenance, and operational activities are all simplified on level ground. The open expanses of the plain also reduce concerns about shadowing from natural features. Agricultural areas in the plain that are less productive or could accommodate dual-use approaches (agrivoltaics) present particularly good opportunities. These areas already have access roads and are typically not forested, reducing environmental impact and land clearing costs. The plain areas also tend to have better existing infrastructure, including proximity to electrical substations and transmission lines, which significantly reduces interconnection costs for large solar installations. Less suitable areas include the northern hills and pre-Alpine regions, where steeper slopes create challenges for installation and maintenance of solar arrays. These areas also typically have more forest cover, meaning environmental impact would be greater if the land were converted to solar use. The hill of San Daniele itself and its immediate surroundings would be unsuitable for large-scale installations due to their cultural significance, scenic value, residential development, and the premium agricultural land used for the region's famous prosciutto production. The riverbed and immediate surroundings of the Tagliamento River should also be avoided due to flood risks and the ecological importance of this relatively unspoiled river system. For optimal solar performance in this region, south-facing slopes with minimal shadowing would be preferable for any installations not located on the plain. However, the additional costs of building on sloped terrain would need to be carefully weighed against any gains in solar exposure.

Italy solar PV Stats as a country

Italy ranks 6th in the world for cumulative solar PV capacity, with 22,698 total MW's of solar PV installed. This means that 8.30% of Italy's total energy as a country comes from solar PV (that's 8th in the world). Each year Italy is generating 381 Watts from solar PV per capita (Italy ranks 7th in the world for solar PV Watts generated per capita). [source]

Are there incentives for businesses to install solar in Italy?

Yes, there are several incentives for businesses wanting to install solar energy in Italy. The Italian government offers a range of financial incentives and tax credits for businesses that install solar energy systems. These include the Conto Energia scheme, which provides feed-in tariffs for electricity generated from renewable sources; the Superbonus 110%, which allows businesses to deduct up to 110% of their investment in renewable energy systems from their taxes; and the Ecobonus 65%, which provides a 65% tax deduction on investments in renewable energy systems. Additionally, businesses may be eligible for grants or loans from regional governments or other organizations.

Do you have more up to date information than this on incentives towards solar PV projects in Italy? Please reach out to us and help us keep this information current. Thanks!

Citation Guide

Article Details for Citation

Tell Us About Your Work

We love seeing how our research helps others! If you've cited this article in your work, we'd be delighted to hear about it. Drop us a line via our Contact Us page or on X, to share where you've used our information - we may feature a link to your work on our site. This helps create a network of valuable resources for others in the solar energy community and helps us understand how our research is contributing to the field. Plus, we occasionally highlight exceptional works that reference our research on our social media channels.

Feeling generous?

Share this with your friends!

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.