Brugnera, Friuli Venezia Giulia, Italy presents a moderately favorable location for year-round solar energy generation, though with significant seasonal variations typical of its Northern Temperate Zone position.
Seasonal Solar Performance
The solar energy output at Brugnera shows dramatic seasonal swings that reflect the region's temperate climate. Summer delivers the strongest performance at 7.07 kWh per day per kW of installed capacity, making it the prime season for solar generation. Spring follows as the second-best period with 5.41 kWh daily output, offering excellent conditions for solar energy production. Autumn sees a notable decline to 3.22 kWh per day, while winter presents the most challenging conditions with just 1.66 kWh daily output per kW installed. This winter low point represents less than 25% of summer's peak performance, highlighting the seasonal dependency of solar generation at this latitude.Optimal Installation Configuration
For maximum year-round energy production at Brugnera, Friuli Venezia Giulia, solar panels should be installed at a fixed tilt angle of 39 degrees facing south. This angle has been calculated to optimize total annual output by accounting for the sun's varying elevation throughout the year and weighting for daily solar potential based on NASA solar irradiance data.Local Environmental Factors
Several environmental and weather factors in the Brugnera region can impact solar panel performance:- Alpine weather influence: The proximity to the Alps can bring sudden weather changes, including heavy snowfall in winter and occasional hailstorms
- Fog and humidity: The Po Valley's flat terrain and nearby water bodies can create morning fog and high humidity conditions
- Dust and pollen: Agricultural activities in the surrounding Friuli region can generate airborne particles that accumulate on panel surfaces
- Temperature fluctuations: Significant seasonal temperature variations can affect panel efficiency and cause thermal stress
Preventative Measures for Optimal Performance
To maximize solar energy production despite these challenges, several installation strategies should be considered:- Robust mounting systems: Use heavy-duty mounting hardware designed to withstand snow loads and potential hail impact
- Regular cleaning schedules: Implement quarterly panel cleaning to remove dust, pollen, and other debris, with additional cleaning after major weather events
- Proper ventilation: Ensure adequate airflow behind panels to prevent overheating and maintain efficiency during hot summer months
- Quality inverters: Install inverters rated for the local temperature range to maintain performance during both winter cold and summer heat
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 Brugnera
Seasonal solar PV output for Latitude: 45.8929, Longitude: 12.5364 (Brugnera, 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 39° South in Brugnera, Italy
To maximize your solar PV system's energy output in Brugnera, Italy (Lat/Long 45.8929, 12.5364) 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 Brugnera, 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 Brugnera, Italy. 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 | 60° 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 Brugnera, 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 Brugnera, Italy.
Our calculation method
- Solar Position:
We determine the Sun's position on the Winter solstice using the location's latitude and solar declination. - Shadow Projection:
We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle. - 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 Brugnera, Italy
Topographical Features Around Brugnera
Brugnera sits in the Friuli-Venezia Giulia region of northeastern Italy, positioned within the broad Venetian Plain that stretches between the Alps and the Adriatic Sea. The landscape around this area is characteristically flat to gently undulating, representing part of the extensive Po Valley system that dominates much of northern Italy's geography. The terrain immediately surrounding Brugnera consists primarily of agricultural lowlands with minimal elevation changes. These fertile plains have been shaped over millennia by sediment deposits from alpine rivers, creating relatively uniform topography with gradual slopes. The area benefits from well-drained soils and a network of irrigation channels that support intensive farming operations. To the north, the landscape begins a gradual ascent toward the foothills of the Carnic Alps, though these elevated areas remain at considerable distance from Brugnera itself. The transition from plain to mountainous terrain occurs progressively, with rolling hills becoming more pronounced as one moves away from the immediate vicinity.Solar Development Potential in the Region
The flat agricultural plains extending south and southwest of Brugnera present the most promising opportunities for large-scale solar photovoltaic installations. These areas offer several key advantages including minimal topographical obstacles, extensive open spaces, and relatively uniform ground conditions that would simplify construction and maintenance operations. The agricultural zones immediately surrounding the town feature large field systems with few natural barriers such as significant hills, deep valleys, or dense woodland areas. This open landscape provides excellent potential for utility-scale solar farms, particularly in areas where agricultural productivity may be lower or where land use could be adapted for dual purposes. Areas to the southeast, extending toward the broader Venetian Plain, maintain the flat characteristics ideal for solar development while offering proximity to existing electrical infrastructure. The uniform topography in these zones would allow for optimal panel orientation and spacing, maximizing energy capture efficiency across large installations. The gentle slopes found in transitional areas between the main plain and slightly elevated ground to the north could also accommodate solar development, though careful site planning would be necessary to ensure proper drainage and prevent soil erosion. These locations might be particularly suitable for installations that follow natural contours rather than requiring extensive land modification.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
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Sunday 27th of July 2025
Last Updated: Thursday 7th of August 2025
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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.




