Old Faliron, Attica, Greece, located at 37.9312° N, 23.7032° E, presents a generally favorable environment for solar PV energy generation throughout the year. This coastal suburb of Athens benefits from its position in the Northern Temperate Zone, experiencing a Mediterranean climate with abundant sunshine.
Seasonal Solar Performance
Solar energy production in Old Faliron varies significantly across seasons. Summer stands out as the peak period, with an impressive 8.19 kWh per day generated for each kW of installed solar capacity. Spring follows as the second-most productive season, yielding 6.39 kWh/day. Autumn sees a noticeable decrease to 4.13 kWh/day, while winter experiences the lowest output at 2.88 kWh/day.
The substantial difference between summer and winter production highlights the region's distinct seasonal patterns. However, even during the less productive months, the area still maintains a respectable solar energy potential.
Optimal Panel Positioning
For fixed panel installations in Old Faliron, Attica, the ideal tilt angle to maximize year-round solar production is 32 degrees facing South. This angle optimizes the panels' exposure to sunlight throughout the year, balancing the varying sun positions across seasons.
Environmental Considerations
While Old Faliron generally offers favorable conditions for solar energy production, there are a few environmental factors to consider:
- Coastal humidity: The proximity to the sea can lead to increased humidity, potentially affecting panel efficiency. Regular cleaning and maintenance can mitigate this issue.
- Urban pollution: Being part of the greater Athens area, air pollution might occasionally reduce solar irradiance. High-quality panels with anti-reflective coatings can help maintain efficiency.
To maximize energy production, consider installing panels with salt corrosion resistance, implementing a regular cleaning schedule, and using microinverters or power optimizers to minimize the impact of potential shading from nearby buildings or structures.
Overall, Old Faliron's location offers a promising environment for solar PV energy generation, with ample sunshine throughout the year and manageable environmental challenges.
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 87 locations across Greece. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.
Link: Solar PV potential in Greece by location
Solar output per kW of installed solar PV by season in Old Faliron
Seasonal solar PV output for Latitude: 37.9312, Longitude: 23.7032 (Old Faliron, Greece), 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 32° South in Old Faliron, Greece
To maximize your solar PV system's energy output in Old Faliron, Greece (Lat/Long 37.9312, 23.7032) throughout the year, you should tilt your panels at an angle of 32° 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 Old Faliron, Greece
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 Old Faliron, Greece. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 32° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 22° South in Summer | 42° South in Autumn | 52° South in Winter | 30° 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 Old Faliron, Greece
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 Old Faliron, Greece.
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 Old Faliron, Greece
The topography around Old Faliron, Greece, which is located at approximately 37.9312° North latitude and 23.7032° East longitude, is characterized by a mix of coastal lowlands and gently rolling hills. This area is situated along the Saronic Gulf, part of the Aegean Sea, and lies within the broader Athens metropolitan region.
The immediate vicinity of Old Faliron is predominantly flat, with a narrow strip of coastal plain extending along the shoreline. This area is highly urbanized, featuring residential and commercial developments. As you move slightly inland, the terrain begins to rise gradually, forming low hills that are typical of the Attic landscape.
To the north and northeast of Old Faliron, the land becomes more elevated, eventually leading to the foothills of Mount Hymettus. This mountain range, while not in the immediate vicinity of Old Faliron, has a significant influence on the broader topography of the region. To the west and northwest, the terrain remains relatively flat as it extends towards central Athens and the port of Piraeus.
Regarding areas nearby that would be most suited for large-scale solar PV (photovoltaic) installations, there are a few considerations to keep in mind. The ideal locations for solar farms are typically flat or gently sloping areas with good sun exposure and minimal shading. Given these criteria, the following areas near Old Faliron might be suitable:
1. The slightly elevated areas to the north and northeast of Old Faliron, where there is less urban development and potentially more open space. These areas may offer better sun exposure due to their elevation.
2. Any available open spaces or brownfield sites within the broader Athens metropolitan area, particularly those that are not slated for immediate urban development.
3. The lower slopes of Mount Hymettus, although this would likely face environmental and land-use restrictions.
4. Potential offshore locations in the Saronic Gulf, although this would involve more complex and costly floating solar technologies.
It's important to note that the highly urbanized nature of the greater Athens area, including Old Faliron, presents significant challenges for large-scale solar PV installations. Any major projects would need to carefully consider land availability, local regulations, and potential impacts on the urban environment and nearby communities.
Greece solar PV Stats as a country
Greece ranks 24th in the world for cumulative solar PV capacity, with 3,530 total MW's of solar PV installed. This means that 9.30% of Greece's total energy as a country comes from solar PV (that's 4th in the world). Each year Greece is generating 329 Watts from solar PV per capita (Greece ranks 11th in the world for solar PV Watts generated per capita). [source]
Are there incentives for businesses to install solar in Greece?
Yes, there are incentives for businesses wanting to install solar energy in Greece. The Greek government offers a range of financial incentives and tax breaks for businesses that invest in renewable energy sources such as solar power. These include grants, subsidies, and tax credits. Additionally, the European Union has set up a number of programs to support the development of renewable energy sources in Greece.
Do you have more up to date information than this on incentives towards solar PV projects in Greece? Please reach out to us and help us keep this information current. Thanks!
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Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Monday 9th of September 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.




