Galliera Veneta, Veneto, Italy, situated at 45.6665° N, 11.8278° E, presents a varied landscape for solar PV energy generation throughout the year. This location in the Northern Temperate Zone experiences significant seasonal fluctuations in solar energy production, which impacts the overall efficiency of solar installations.
Seasonal Solar Performance
The solar energy output in Galliera Veneta varies dramatically across the seasons. Summer stands out as the most productive period, with an impressive 6.83 kWh per day for each kilowatt of installed solar capacity. Spring follows as the second-most productive season, generating 5.28 kWh/day/kW. In contrast, autumn sees a significant drop to 3.14 kWh/day/kW, while winter experiences the lowest output at just 1.77 kWh/day/kW.
These figures indicate that solar energy production in Galliera Veneta is most effective from late spring through early autumn. During this period, longer days and higher sun angles contribute to increased solar panel efficiency. However, the substantial decrease in output during autumn and winter highlights the challenges of relying solely on solar power throughout the year in this location.
Optimal Panel Positioning
To maximize year-round solar energy production in Galliera Veneta, Veneto, fixed solar panels should be installed at a tilt angle of 39 degrees facing south. This angle is calculated to optimize the panels' exposure to sunlight throughout the year, taking into account the location's latitude and the Earth's elliptical orbit.
Environmental and Weather Considerations
While Galliera Veneta's location is generally favorable for solar energy production, there are some environmental factors to consider:
- Fog and haze: The Po Valley, where Galliera Veneta is located, is prone to fog and haze, especially during autumn and winter. This can reduce solar panel efficiency.
- Snow: Winter snowfall, though not excessive, can temporarily cover panels and reduce output.
To mitigate these issues, consider installing panels at a steeper angle to encourage snow sliding off and use self-cleaning technologies to combat dust and haze accumulation. Additionally, regular maintenance and cleaning of the panels can help maintain optimal performance.
In conclusion, while Galliera Veneta's location presents challenges for year-round solar energy production, particularly in winter, it still offers significant potential for solar PV systems, especially during the warmer months. Proper panel positioning and maintenance can help maximize energy output throughout the year.
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 Galliera Veneta
Seasonal solar PV output for Latitude: 45.6665, Longitude: 11.8278 (Galliera Veneta, 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 Galliera Veneta, Italy
To maximize your solar PV system's energy output in Galliera Veneta, Italy (Lat/Long 45.6665, 11.8278) 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 Galliera Veneta, 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 Galliera Veneta, 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 Galliera Veneta, 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 Galliera Veneta, 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 Galliera Veneta, Italy
The area surrounding Galliera Veneta, a small town in northeastern Italy, is characterized by a predominantly flat landscape typical of the Venetian Plain. This region, known as the Po Valley, features expansive lowlands with minimal elevation changes. The terrain around Galliera Veneta is primarily composed of fertile agricultural fields, interspersed with small waterways and drainage channels that crisscross the countryside. To the north of Galliera Veneta, the landscape gradually begins to rise as it approaches the foothills of the Asiago Plateau and the Venetian Prealps. These distant mountains provide a scenic backdrop to the otherwise level terrain. However, the immediate vicinity of the town remains largely flat, with only subtle undulations in the land. The area's topography is influenced by the presence of several rivers, including the Brenta River to the east and the Muson dei Sassi to the west. These waterways have shaped the local geography over time, depositing rich alluvial soils that contribute to the region's agricultural productivity.
Suitability for Large-Scale Solar PV
When considering locations for large-scale solar photovoltaic (PV) installations near Galliera Veneta, several areas show promise due to the favorable topography and land use patterns: The extensive agricultural plains surrounding the town offer ideal conditions for solar PV development. These flat, open spaces receive ample sunlight throughout the year and have minimal shading from natural features or structures. The land between Galliera Veneta and neighboring towns like Cittadella to the west or San Martino di Lupari to the east could be particularly suitable. Areas to the south of Galliera Veneta, extending towards the towns of Tombolo and Onara, present opportunities for solar PV installations. This region maintains the flat characteristics of the Po Valley and has large, uninterrupted stretches of land that could accommodate substantial solar arrays. While the northern areas begin to rise towards the foothills, there may still be suitable locations for solar PV in the transitional zones. These areas, while slightly more elevated, still offer relatively flat terrain and could potentially benefit from improved solar exposure due to their gentle slopes. It's important to note that any large-scale solar PV development would need to balance energy production goals with the preservation of valuable agricultural land and local ecosystems. Careful planning and consultation with local authorities and stakeholders would be essential to identify the most appropriate sites that minimize impact on food production and the environment while maximizing solar energy potential.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!
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Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Thursday 10th of April 2025
Last Updated: Monday 28th 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.




