Solar PV Analysis of Ioannina, Greece
Ioannina, Epirus, Greece is a fairly good location for generating solar energy year-round, although the effectiveness varies with each season. During summer and spring, the amount of electricity produced from solar panels is quite high (8.04 kilowatt-hours per day in summer and 6.24 kilowatt-hours per day in spring). However, during autumn and winter, this drops significantly to 3.84 and 2.55 kilowatt-hours per day respectively.
This means that if you were to install solar panels in Ioannina, Epirus, they would be most effective during the longer daylight hours of spring and summer when sunlight is abundant. In contrast, autumn and winter have shorter days with less sunlight leading to lower energy production.
To maximize total year-round production from your solar panels at this location, it's recommended that you tilt them at an angle of 33 degrees facing southwards. This takes advantage of the sun’s path across the sky throughout different times of the year.
As for environmental or weather factors that could hinder solar panel efficiency in Ioannina: The region experiences a Mediterranean climate with hot summers and mild winters but can also experience heavy rainfall especially during winter which might reduce sunlight exposure on some days.
Preventative measures include installing your panels where they will not be shaded by buildings or trees as much as possible; using high-quality materials resistant to water damage; regular cleaning to remove dust or debris build-up which can block sunlight; installing a reliable drainage system around your installation site to prevent water accumulation; considering adjustable mounting systems so you can change panel angles according to seasonal changes if necessary.
In conclusion: while there are some challenges associated with using solar power in Ioannina due mainly due to seasonal variations - careful planning regarding installation position & maintenance could make it a viable source of renewable energy all year round.
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 Ioannina
Seasonal solar PV output for Latitude: 39.6672, Longitude: 20.8599 (Ioannina, 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 33° South in Ioannina, Greece
To maximize your solar PV system's energy output in Ioannina, Greece (Lat/Long 39.6672, 20.8599) throughout the year, you should tilt your panels at an angle of 33° 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 Ioannina, 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 Ioannina, Greece. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 33° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 23° South in Summer | 43° South in Autumn | 54° South in Winter | 32° 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 Ioannina, 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 Ioannina, 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 Ioannina, Greece
Ioannina, Greece is located in the region of Epirus and is surrounded by a mountainous landscape. It lies on the western side of the Pindus Mountain range, which spans across Northern and Central Greece. The city itself is situated on Lake Pamvotis' western shore.
The topography around Ioannina consists of high mountains with steep slopes, narrow valleys, and small plateaus. The highest peaks can reach up to 2,637 meters (Mount Smolikas). This rugged terrain combined with a significant amount of cloud cover due to its altitude might not make it an ideal location for large-scale solar PV installations.
However, there are some flatter areas or plateaus in the region that could potentially accommodate such projects. For example:
1) Near the coast: Areas closer to the Ionian Sea tend to be less mountainous and receive more sunlight throughout the year making them potentially suitable for solar power generation.
2) Agricultural lands: Some agricultural lands could also be suitable if they have good sun exposure and are not being used intensively for crop production.
3) Rooftop installations: In urban areas like Ioannina city itself, rooftop solar installations could be a viable option given sufficient sunlight exposure.
4) South-facing slopes: Although much of Epirus is mountainous, south-facing slopes may offer enough sunlight exposure for efficient operation of solar panels despite their inclination angle.
It's worth noting that any potential site would require careful evaluation regarding factors such as solar irradiance levels (amount of sunlight), land ownership rights, proximity to electricity grid connections, environmental impacts among others before proceeding with large-scale installation plans.
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!
Citation Guide
Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Thursday 28th of March 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.
