Seregno, Lombardy, Italy, situated in the Northern Temperate Zone, presents a mixed picture for solar PV energy generation throughout the year. This location experiences significant seasonal variations in solar energy production, which impacts the overall efficiency of solar installations.
Seasonal Solar Performance
The solar energy output in Seregno varies considerably across the seasons. Summer stands out as the most productive period, with an impressive 6.75 kWh per day for each kW of installed solar capacity. Spring follows as the second-best season, generating 5.40 kWh per day. However, autumn and winter see a substantial drop in production, with 3.12 kWh and 1.85 kWh per day, respectively.
These figures indicate that Seregno's location is particularly favorable for solar energy generation during the warmer months, from late spring through early autumn. During this period, 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 Seregno, Lombardy, fixed solar panels should be installed at a tilt angle of 39 degrees facing south. This optimal angle helps balance energy capture across seasons, compensating for the sun's changing position throughout the year.
Environmental and Weather Considerations
While Seregno's location is generally suitable for solar energy production, there are some factors that could potentially impact efficiency:
- Fog and haze: The Po Valley, where Seregno is located, is known for occasional fog, especially in autumn and winter. This can reduce solar irradiance reaching the panels.
- Snow: Winter snowfall, though not frequent, can temporarily cover panels and reduce output.
To mitigate these issues, consider installing panels at a steeper angle to encourage snow sliding off and using anti-reflective coatings to improve performance in low-light conditions. Regular cleaning and maintenance can also help ensure optimal performance year-round.
In conclusion, while Seregno's location presents challenges during the colder months, it offers excellent potential for solar energy generation, particularly from late spring to early autumn. With proper installation and maintenance, solar PV systems can be a viable and efficient source of renewable energy in this Italian town.
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 Seregno
Seasonal solar PV output for Latitude: 45.6563, Longitude: 9.2116 (Seregno, 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 Seregno, Italy
To maximize your solar PV system's energy output in Seregno, Italy (Lat/Long 45.6563, 9.2116) 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 Seregno, 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 Seregno, 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 Seregno, 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 Seregno, 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 Seregno, Italy
The area around Seregno, Italy, is characterized by a mix of gently rolling hills and flat plains, typical of the Brianza region in Lombardy. This part of northern Italy lies between the foothills of the Alps to the north and the expansive Po Valley to the south. Seregno itself is situated on relatively flat terrain, with an average elevation of about 220 meters (720 feet) above sea level.
As you move north from Seregno, the landscape gradually becomes more hilly, with gentle slopes and small valleys. These hills are part of the pre-Alpine region and offer picturesque views of the surrounding countryside. To the south and southeast, the terrain becomes increasingly flat as it transitions into the Po Valley, one of the largest and most important agricultural regions in Italy.
Regarding areas nearby that would be most suited for large-scale solar PV (photovoltaic) installations, the flat plains to the south of Seregno offer the most promising locations. These areas have several advantages for solar energy production:
1. The flat terrain makes construction and maintenance of solar panels easier and more cost-effective.
2. There are fewer natural obstacles that could cast shadows on the panels, maximizing sun exposure throughout the day.
3. The Po Valley generally experiences less fog and cloud cover compared to the hilly regions closer to the Alps, ensuring more consistent solar radiation.
4. Many of these flat areas are already used for agriculture, and solar farms could potentially be integrated with existing land use in a dual-purpose arrangement.
However, it's important to note that the entire region around Seregno is quite densely populated and heavily urbanized. This means that finding large, contiguous areas for solar farms might be challenging. Any large-scale solar PV project would need to carefully consider land availability, local zoning regulations, and potential impacts on communities and ecosystems.
Additionally, while the hilly areas to the north may not be ideal for large-scale installations, they could be suitable for smaller, distributed solar projects on south-facing slopes, which could take advantage of the natural terrain to maximize sun 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
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Tuesday 13th of August 2024
Last Updated: Monday 21st of July 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.
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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.




