Solar PV Analysis of Naples, Italy
Situated in the Northern Temperate Zone, Naples, Campania, Italy (coordinates 40.867, 14.2385) is a favorable location for solar photovoltaic (PV) installations due to its extensive sunlight exposure throughout the year. The average energy yield per day from each kilowatt of installed solar capacity varies by season: it is highest in summer at 7.74 kWh, followed by spring at 6.15 kWh; while autumn and winter produce lower outputs of 3.65 kWh and 2.42 kWh respectively.
The variation in these figures can be attributed to the differences in daylight hours across seasons - longer daylight hours during summer and spring allow for more solar energy generation compared to autumn and winter.
For optimal performance at this geographical location, a fixed panel installation should ideally be tilted at an angle of 34 degrees facing southward to capture maximum sunlight throughout the year.
However, certain local weather conditions could potentially affect solar production here - heavy cloud cover or strong winds being primary concerns that could limit direct sunlight or cause turbulence on panels respectively.
To mitigate these risks and ensure consistent energy output, it would be beneficial to consider installing robust mounting systems capable of withstanding high wind loads while maintaining panel stability; additionally incorporating efficient micro-inverters can help optimize power production even under variable light conditions due to clouds or shadows.
Furthermore, regular maintenance including cleaning of panels will prevent dust or debris accumulation which may obstruct light absorption thereby impacting overall efficiency.
It's also worth noting that Naples' coastal location might expose installations to corrosive sea air over time; therefore using corrosion-resistant materials for all exposed parts would further safeguard long-term productivity.
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 278 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 Naples
Seasonal solar PV output for Latitude: 40.867, Longitude: 14.2385 (Naples, 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 Naples, Italy
To maximize your solar PV system's energy output in Naples, Italy (Lat/Long 40.867, 14.2385) 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 Naples, 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 Naples, 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 Naples, 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 Naples, 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 Naples, Italy
The topography around Naples, Italy is mostly flat with some small hills and mountains. The nearby areas that would be most suited to large scale solar PV are the flat coastal plains along the Mediterranean Sea. These areas have plenty of open space and direct sunlight exposure making them ideal for solar energy production.
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 14th of October 2023
Last Updated: Wednesday 26th of June 2024
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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.
