San Martino di Lupari, located in northern Italy, presents a mixed picture for solar energy generation throughout the year. This location experiences significant seasonal variations in solar output, which impact its overall suitability for solar PV installations.
Seasonal Solar Performance
The summer months offer the most favorable conditions for solar energy production, with an impressive daily output of 6.87kWh per kW of installed capacity. Spring follows as the second-best season, generating 5.34kWh per day. However, autumn and winter see a substantial drop in energy production, with 3.20kWh and 1.83kWh per day, respectively.
This stark contrast between seasons indicates that while San Martino di Lupari can be highly productive for solar energy during half of the year, it faces significant challenges during the colder months.
Optimal Panel Installation
To maximize year-round solar energy production, fixed solar panels should be installed at a tilt angle of 39 degrees facing south. This orientation helps capture the most sunlight throughout the year, balancing the high summer sun with the lower winter sun angle.
Environmental and Weather Considerations
While San Martino di Lupari doesn't face extreme environmental challenges, there are some factors that could impact solar production:
- Fog and haze: The Po Valley, where this location is situated, is prone to fog and haze, especially in autumn and winter. This can reduce solar irradiance reaching the panels.
- Snow: Winter snowfall, though not extreme, can temporarily cover panels and reduce efficiency.
To mitigate these issues, consider installing panels at a steeper angle to encourage snow sliding off and use anti-reflective coatings to maximize light absorption in hazy conditions. Regular cleaning and maintenance can also help ensure optimal performance.
Conclusion
While San Martino di Lupari isn't ideal for year-round solar production due to significant seasonal variations, it still offers good potential, especially from spring through autumn. With proper installation techniques and maintenance, a solar PV system here can be a viable source of renewable energy, particularly when combined with energy storage solutions to balance the seasonal differences in 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 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 Martino Di Lupari
Seasonal solar PV output for Latitude: 45.6589, Longitude: 11.8639 (San Martino Di Lupari, 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 San Martino Di Lupari, Italy
To maximize your solar PV system's energy output in San Martino Di Lupari, Italy (Lat/Long 45.6589, 11.8639) 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 San Martino Di Lupari, 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 Martino Di Lupari, 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 San Martino Di Lupari, 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 Martino Di Lupari, 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 San Martino Di Lupari, Italy
The area around San Martino di Lupari, Italy, is characterized by a predominantly flat landscape typical of the Venetian Plain. This region, located in the northeastern part of Italy, features a gentle topography with minimal elevation changes. The terrain is largely composed of fertile alluvial soils, deposited over centuries by rivers flowing from the nearby Alps and Dolomites. To the north of San Martino di Lupari, the land gradually begins to rise as it approaches the foothills of the Alps. This transition zone, known as the Pedemontana Veneta, offers a subtle increase in elevation and some gently rolling hills. However, the immediate vicinity of San Martino di Lupari remains primarily flat, with occasional small undulations in the landscape. The area is crisscrossed by a network of small rivers and irrigation canals, which have played a crucial role in shaping the local topography and supporting agriculture. These waterways have created a patchwork of fields and farmlands, interspersed with small wooded areas and rural settlements.
Suitable Areas for Large-scale Solar PV
When considering locations for large-scale solar photovoltaic (PV) installations near San Martino di Lupari, several factors come into play. The most suitable areas would be those that offer ample open space, minimal shading, and good access to existing infrastructure. The flat agricultural lands surrounding San Martino di Lupari present promising opportunities for solar PV development. These areas benefit from unobstructed exposure to sunlight and ease of installation due to the level terrain. Particularly suitable locations might include fallow fields or less productive agricultural land to the south and east of the town, where competition with prime farmland could be minimized. Another potential area for solar PV development could be the slightly elevated terrain to the north, in the direction of the Pedemontana Veneta. While this area may have some gentle slopes, it could still accommodate large-scale solar installations and might even benefit from slightly increased solar exposure due to its elevation. It's important to note that any large-scale solar PV project would need to carefully consider local zoning regulations, environmental impact, and the preservation of the region's agricultural heritage. Integrating solar installations with existing agricultural practices, such as agrivoltaics, could be a promising approach in this area, allowing for dual use of the land for both energy production and farming.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: Monday 11th of November 2024
Last Updated: Monday 21st of July 2025
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.




