Drobeta-Turnu Severin, Mehedinți County, Romania, situated at latitude 44.6319 and longitude 22.6561, presents a varied landscape for solar energy production throughout the year. This location in the Northern Temperate Zone experiences significant seasonal fluctuations in solar energy potential.
Seasonal Solar Output
The solar energy generation at this site follows a predictable pattern aligned with the seasons. Summer stands out as the most productive period, with an impressive daily output of 7.04 kWh per kW of installed solar capacity. Spring follows as the second most productive season, yielding 5.18 kWh per day. Autumn sees a considerable drop in production to 3.07 kWh daily, while winter experiences the lowest output at 1.75 kWh per day.
These figures indicate that the location is most ideal for solar energy production during the warmer months, particularly from late spring through early autumn. During this period, longer daylight hours and higher sun angles contribute to increased solar panel efficiency.
Optimal Panel Installation
To maximize year-round solar energy production at this location, fixed solar panels should be installed at a tilt angle of 37 degrees facing south. This angle has been calculated to optimize the panels' exposure to sunlight throughout the year, taking into account the site's latitude and the Earth's elliptical orbit.
Environmental and Weather Considerations
While Drobeta-Turnu Severin generally offers favorable conditions for solar energy production, there are some factors that could potentially impact efficiency:
- Winter snowfall: The region experiences occasional snowfall in winter, which could temporarily reduce panel output if not promptly removed.
- Dust and pollen: Being situated near agricultural areas, dust and pollen accumulation on panels may occur, particularly during spring and summer.
To mitigate these issues, regular panel cleaning and maintenance should be scheduled. Additionally, installing panels at the recommended 37-degree angle can help with natural snow shedding and reduce dust accumulation. In areas prone to heavy snowfall, consider using frames that allow for easy manual snow removal.
Overall, while the location experiences significant seasonal variations in solar output, proper installation and maintenance practices can help maximize energy production year-round, making Drobeta-Turnu Severin a viable location for solar PV systems.
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 114 locations across Romania. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.
Link: Solar PV potential in Romania by location
Solar output per kW of installed solar PV by season in Drobeta-Turnu Severin
Seasonal solar PV output for Latitude: 44.6319, Longitude: 22.6561 (Drobeta-Turnu Severin, Romania), 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 37° South in Drobeta-Turnu Severin, Romania
To maximize your solar PV system's energy output in Drobeta-Turnu Severin, Romania (Lat/Long 44.6319, 22.6561) throughout the year, you should tilt your panels at an angle of 37° 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 Drobeta-Turnu Severin, Romania
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 Drobeta-Turnu Severin, Romania. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 37° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 28° South in Summer | 48° South in Autumn | 58° South in Winter | 37° 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 Drobeta-Turnu Severin, Romania
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 Drobeta-Turnu Severin, Romania.
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 Drobeta-Turnu Severin, Romania
The topography around Drobeta-Turnu Severin, Romania, is characterized by a diverse landscape that includes both flat areas and hilly terrain. The city itself is situated on the northern bank of the Danube River, which forms a natural border between Romania and Serbia. This location provides a relatively flat area along the riverbank.
To the north and northeast of the city, the land gradually rises into the foothills of the Carpathian Mountains. These hills become more pronounced as you move further from the Danube, creating a rolling landscape with varying elevations. The terrain in this direction is a mix of forested areas and open spaces used for agriculture.
To the west and northwest, the land remains relatively flat for some distance before it starts to rise into gentle hills. This area is part of the Oltenia Plain, which extends across much of southwestern Romania. The plain offers large open spaces with minimal elevation changes.
For large-scale solar PV installations, the areas best suited would be the flatter regions to the west and northwest of Drobeta-Turnu Severin. These areas within the Oltenia Plain provide several advantages for solar energy production:
- The flat terrain makes construction and maintenance of solar arrays easier and more cost-effective.
- There are fewer natural obstacles that could cast shadows on the panels, maximizing sun exposure throughout the day.
- The open landscape allows for larger, uninterrupted installations, which can increase overall energy production efficiency.
- The agricultural nature of the plain means there may be less competition for land use compared to more densely populated or industrialized areas.
While the hilly areas to the north and northeast could potentially be used for solar installations, they present more challenges in terms of construction and may not be as efficient due to varying slopes and potential shading issues. However, these areas might be suitable for smaller, distributed solar projects rather than large-scale installations.
It's important to note that any large-scale solar PV project would require detailed site-specific assessments, including solar irradiance studies, environmental impact evaluations, and consideration of local regulations and grid connection possibilities.
Romania solar PV Stats as a country
Romania ranks 39th in the world for cumulative solar PV capacity, with 1,398 total MW's of solar PV installed. This means that 3.40% of Romania's total energy as a country comes from solar PV (that's 24th in the world). Each year Romania is generating 74 Watts from solar PV per capita (Romania ranks 43rd in the world for solar PV Watts generated per capita). [source]
Are there incentives for businesses to install solar in Romania?
Yes, there are incentives for businesses wanting to install solar energy in Romania. The Romanian government offers a number of financial incentives and subsidies for businesses that invest in renewable energy sources such as solar power. These include grants, tax deductions, and other forms of support. Additionally, the government has set up a Renewable Energy Support Scheme (RES) which provides additional funding for projects related to renewable energy sources such as solar power.
Do you have more up to date information than this on incentives towards solar PV projects in Romania? 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: Sunday 4th of August 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.




