Solar PV Analysis of Yambol, Bulgaria
The location at Yambol, Bulgaria is generally suitable for generating energy via solar PV throughout the year, but there are differences in output depending on the season.
During summer, you can expect a high output of 6.99kWh/day per kW of installed solar. This is because the sun shines longer and brighter during this time of year, making it an ideal time for solar power generation.
Spring also offers good production with 5.18 kWh/day per kW due to longer daylight hours and less cloud cover compared to other seasons.
However, during autumn and winter, the amount of electricity generated decreases significantly due to shorter days and less sunlight intensity. You can expect around 3.15kWh/day in autumn and even lower at 1.96kWh/day in winter per kW installed.
In terms of installation specifics for this location, tilting your panels at an angle of 36 degrees towards South will maximize their exposure to sunlight throughout the year resulting in greater overall energy production.
As far as environmental or weather factors that could impede solar production at this location are concerned - common issues might include dust accumulation on panels which reduces their efficiency or snow coverage during winter months that could block sunlight completely from reaching them.
To mitigate these problems:
- Regular cleaning will help keep dust off your panels.
- Installing them at a certain angle (like mentioned above) not only maximizes sun exposure but also helps snow slide off more easily.
- Using technologies like automated panel cleaners or heaters may be beneficial but should be considered against their additional costs versus potential benefits they bring by increasing overall system performance.
Overall while there are seasonal variations and potential challenges related to local conditions; with proper installation techniques including optimal panel tilt angle along with regular maintenance practices – Yambol, Bulgaria provides a viable environment for harnessing solar energy effectively across different times of the year.
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 68 locations across Bulgaria. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.
Link: Solar PV potential in Bulgaria by location
Solar output per kW of installed solar PV by season in Yambol
Seasonal solar PV output for Latitude: 42.4821, Longitude: 26.501 (Yambol, Bulgaria), 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 36° South in Yambol, Bulgaria
To maximize your solar PV system's energy output in Yambol, Bulgaria (Lat/Long 42.4821, 26.501) throughout the year, you should tilt your panels at an angle of 36° 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 Yambol, Bulgaria
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 Yambol, Bulgaria. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 36° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 27° South in Summer | 46° South in Autumn | 57° South in Winter | 35° 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 Yambol, Bulgaria
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 Yambol, Bulgaria.
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 Yambol, Bulgaria
Yambol, Bulgaria is situated in the southeastern part of the country. The topography around Yambol is mostly flat to gently rolling plains with some hills and low mountains to the south towards the Turkish border. The region features fertile soils ideal for agriculture, with several rivers including Tundzha River flowing through it.
The climate of Yambol is continental with hot summers and cold winters, making it suitable for solar PV installations. However, given its geographical location and topography, there are certain areas that would be more beneficial for large-scale solar PV projects:
1) Flat Plains: Large expanses of flat land are ideal locations as they can accommodate large arrays of solar panels without any need for significant grading or landscaping work.
2) Agricultural Land: Given that a significant portion of the land around Yambol is used for agriculture, dual-use or agro-photovoltaic systems could be implemented here. These systems allow agricultural activities to coexist with renewable energy production.
3) Unused/Underutilized Land: Any unused or underutilized lands such as brownfield sites could also serve as potential locations since their development would not displace other productive uses.
4) Rooftops: In urban areas like Yambol city itself, rooftops on larger buildings (e.g., commercial/industrial facilities) can also host smaller scale but collectively substantial photovoltaic installations.
5) South-facing Slopes: While most of the area is relatively flat, any south-facing slopes in hilly regions could be advantageous due to increased sun exposure throughout the day.
It's important to note that while these areas may be physically suitable for hosting solar PV installations based on topography and sunlight availability alone; other factors such as environmental impact assessments, grid connectivity options and local regulations should also be considered before proceeding with any project development.
Bulgaria solar PV Stats as a country
Bulgaria ranks 41st in the world for cumulative solar PV capacity, with 1,186 total MW's of solar PV installed. This means that 4.70% of Bulgaria's total energy as a country comes from solar PV (that's 18th in the world). Each year Bulgaria is generating 171 Watts from solar PV per capita (Bulgaria ranks 31st in the world for solar PV Watts generated per capita). [source]
Are there incentives for businesses to install solar in Bulgaria?
Yes, there are incentives for businesses wanting to install solar energy in Bulgaria. The Bulgarian government offers a number of financial incentives and subsidies for businesses that install solar energy systems. These include grants, tax credits, and other forms of support. Additionally, the European Union has provided funding for renewable energy projects in Bulgaria through its Horizon 2020 program.
Do you have more up to date information than this on incentives towards solar PV projects in Bulgaria? Please reach out to us and help us keep this information current. Thanks!
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Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Monday 13th of May 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.
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.
