Orta di Atella, Italy presents a moderately favorable location for year-round solar photovoltaic energy generation, though with significant seasonal variations that potential solar installers should carefully consider.
Seasonal Solar Performance
The solar energy output at this location shows dramatic differences throughout the year. Summer delivers the strongest performance at 7.74 kWh per day per kW of installed capacity, making it an excellent time for solar generation. Spring also provides good returns with 6.12 kWh per day per kW, offering nearly 80% of summer's output. However, the location experiences substantial drops in solar production during cooler months. Autumn generates only 3.61 kWh per day per kW, while winter drops to just 2.37 kWh per day per kW - less than one-third of summer production. This seasonal variation is typical for locations in the Northern Temperate Zone but represents a significant challenge for consistent year-round energy independence.Optimal Installation Configuration
For maximum year-round energy production at Orta di Atella, solar panels should be installed at a fixed tilt angle of 34 degrees facing south. This angle has been calculated to optimize total annual output by accounting for the sun's changing position throughout the year and weighting for actual solar irradiance data at this specific latitude.Local Environmental Challenges
Several environmental and weather factors in the Orta di Atella region can potentially impact solar energy production:- Mediterranean dust and pollen accumulation, particularly during spring and summer months
- Occasional volcanic ash from nearby Mount Vesuvius, which can coat panels and reduce efficiency
- High humidity levels that can promote algae or mold growth on panel surfaces
- Salt air from the nearby Tyrrhenian Sea, which can cause corrosion over time
Preventative Measures for Optimal Performance
To maximize solar energy production despite these challenges, several installation strategies should be considered: Regular cleaning schedules become essential in this environment, with panels requiring washing every 4-6 weeks during peak pollen season and after any volcanic activity. Installing panels with adequate spacing allows for proper air circulation, reducing humidity-related issues and making maintenance access easier. Choosing marine-grade mounting hardware and electrical components helps combat salt air corrosion, while selecting panels with anti-soiling coatings can reduce dust accumulation between cleanings. Installing a monitoring system allows for quick identification of performance drops that might indicate cleaning or maintenance needs.Overall Assessment
While Orta di Atella offers decent solar potential during warmer months, the significant winter production drop and local environmental challenges require careful planning. The location works best for grid-tied systems that can rely on the electrical grid during low-production periods, rather than off-grid installations requiring consistent year-round generation.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 Orta Di Atella
Seasonal solar PV output for Latitude: 40.9664, Longitude: 14.2766 (Orta Di Atella, 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 34° South in Orta Di Atella, Italy
To maximize your solar PV system's energy output in Orta Di Atella, Italy (Lat/Long 40.9664, 14.2766) throughout the year, you should tilt your panels at an angle of 34° 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 Orta Di Atella, 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 Orta Di Atella, Italy. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 34° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 25° South in Summer | 44° South in Autumn | 55° South in Winter | 33° 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 Orta Di Atella, 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 Orta Di Atella, 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 Orta Di Atella, Italy
Topographical Features of Orta di Atella
Orta di Atella sits in the heart of the Campanian Plain, one of Italy's most expansive flat agricultural regions located north of Naples. This area forms part of the broader Terra di Lavoro, a fertile lowland that stretches between the Apennine foothills to the east and the Tyrrhenian Sea to the west. The terrain around Orta di Atella is characterized by gently rolling plains with minimal elevation changes, creating an almost uniformly flat landscape that rarely exceeds 100 meters above sea level. The region benefits from volcanic soils deposited over millennia by nearby Mount Vesuvius and the Phlegraean Fields volcanic system. These fertile deposits have created the characteristic dark, rich earth that makes this area so productive for agriculture. The landscape is predominantly agricultural, with large open fields devoted to crops like wheat, corn, and various vegetables that thrive in the Mediterranean climate.Drainage and Water Features
The area is drained by several small waterways that flow generally westward toward the sea. These include minor tributaries and irrigation channels that support the extensive agricultural activities. The relatively flat topography means that water movement is gentle, and there are few natural obstacles that would complicate large-scale development projects. The Volturno River, one of southern Italy's major waterways, flows to the north of this region, though it does not directly impact the immediate area around Orta di Atella. The gentle gradient of the land ensures good drainage without the erosion problems that might be found in steeper terrain.Optimal Areas for Large-Scale Solar Development
The flat to gently undulating topography around Orta di Atella presents excellent opportunities for large-scale solar photovoltaic installations. The most suitable areas lie in the open agricultural plains that extend in all directions from the town, particularly to the north and east where the terrain is most consistently level and unobstructed. The areas immediately northeast of Orta di Atella offer some of the best conditions, where large contiguous parcels of relatively flat land could accommodate extensive solar arrays with minimal grading requirements. These zones benefit from unobstructed southern exposure and are generally free from the urban development that characterizes areas closer to Naples. The western approaches toward Aversa and beyond also present good opportunities, though developers would need to consider the slightly higher population density in these areas. The terrain remains favorable, with gentle slopes that would not require significant earthwork to achieve optimal panel positioning. Agricultural lands to the south and southeast of the town represent another prime opportunity zone. These areas maintain the flat characteristics ideal for solar development while being sufficiently removed from major population centers to allow for large-scale installations. The existing agricultural road network in these areas would facilitate construction access and ongoing maintenance operations. The absence of significant hills, valleys, or other topographical obstacles throughout this region means that solar installations could be designed with consistent panel orientations across large areas, maximizing efficiency and simplifying installation processes. The stable, well-drained soils would provide excellent foundations for mounting systems, while the open landscape ensures minimal shading concerns from natural features.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: Saturday 26th 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.
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