Solar PV Analysis of Cojasca, Romania
Cojasca, Dâmbovița County, Romania, situated at latitude 44.7167 and longitude 25.85, presents a mixed picture for solar energy production throughout the year. This location in the Northern Temperate Zone experiences significant seasonal variations in solar energy potential.
Seasonal Solar Performance
Summer stands out as the most productive season for solar energy in Cojasca, Dâmbovița County, with an impressive daily output of 6.83 kWh per kW of installed solar capacity. Spring follows as the second-best season, generating 5.08 kWh per day. However, the performance drops considerably during autumn, with only 3.24 kWh per day, and plummets to a mere 1.77 kWh per day in winter.
These figures highlight the stark contrast between the warm and cold seasons, with summer producing nearly four times the energy of winter. This disparity underscores the challenges of relying solely on solar power throughout the year in Cojasca.
Optimal Panel Installation
To maximize year-round solar energy production in Cojasca, Dâmbovița County, fixed solar panels should be installed at a tilt angle of 38 degrees facing south. This angle has been calculated to optimize energy capture across all seasons, taking into account the Earth's elliptical orbit and the location's specific solar elevation angles.
Environmental and Weather Considerations
While Cojasca doesn't face extreme environmental challenges for solar production, there are some factors to consider:
- Snow accumulation in winter can reduce panel efficiency
- Dust and pollen during spring and summer may affect panel performance
To mitigate these issues, consider installing panels at a steeper angle to encourage snow sliding off and implement regular cleaning schedules. Additionally, using high-quality, anti-reflective coatings on panels can help maintain efficiency in varying weather conditions.
In conclusion, while Cojasca offers excellent solar potential during summer and spring, the significant drop in production during autumn and winter means that supplementary energy sources or robust energy storage solutions should be considered for year-round reliability.
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 Cojasca
Seasonal solar PV output for Latitude: 44.7167, Longitude: 25.85 (Cojasca, 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 38° South in Cojasca, Romania
To maximize your solar PV system's energy output in Cojasca, Romania (Lat/Long 44.7167, 25.85) throughout the year, you should tilt your panels at an angle of 38° 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 Cojasca, 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 Cojasca, Romania. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 38° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 29° 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 Cojasca, 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 Cojasca, 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 Cojasca, Romania
The area around Cojasca, Romania, is characterized by relatively flat terrain typical of the Romanian Plain. This region, also known as the Lower Danube Plain, is part of the larger Wallachian Plain that stretches across southern Romania. The landscape in and around Cojasca consists primarily of gently rolling hills and wide, open fields, with elevations generally ranging from about 50 to 100 meters above sea level.
The topography of this area has been shaped by the Ialomița River, which flows nearby. The river has created a broad, fertile valley with alluvial deposits, making the land suitable for agriculture. The terrain is mostly composed of loess, a fine, windblown sediment that contributes to the region's productivity for farming.
As for areas nearby that would be most suited to large-scale solar PV (photovoltaic) installations, several factors make this region potentially attractive for such projects. The relatively flat terrain and abundance of open fields provide ample space for solar panel arrays without the need for significant land modification. The lack of major geographical obstacles, such as mountains or dense forests, means there are fewer issues with shading or limited sun exposure.
Ideal locations for solar PV installations in this area would be on slightly elevated ground to minimize the risk of flooding and maximize sun exposure. Fields that are currently less productive for agriculture or fallow land would be prime candidates. Areas to the south of Cojasca might be particularly suitable, as they would have unobstructed exposure to the sun throughout the day.
It's worth noting that while the topography is generally favorable, other factors such as grid connectivity, local regulations, and environmental considerations would also need to be taken into account when planning large-scale solar projects in this region. Additionally, the proximity to the Ialomița River valley should be considered to avoid any potential flood-prone areas.
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: Monday 23rd of September 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.
