Solar PV Analysis of Botevgrad, Bulgaria
Botevgrad, Sofia, Bulgaria is a pretty good place for generating solar energy all year round, although it's not perfect. During the summer and spring, you can expect to generate quite a bit of electricity from your solar panels - around 6.99 kilowatt-hours per day in the summer and 5 kilowatt-hours per day in the spring for each kilowatt of solar panels installed. This makes these seasons ideal times to generate solar power.
In autumn and winter, however, the amount of electricity you can produce drops significantly - down to 3.27 kWh/day in autumn and just 2 kWh/day in winter for each kW of installed panels. So while you'll still be able to produce some power during these seasons, it won't be nearly as much as during sunnier times of year.
To get the most out of your solar panels at this location throughout the year, they should ideally be tilted at an angle facing southwards by about 36 degrees. This will help maximize their exposure to sunlight over different parts of the year.
There could potentially be local factors that might affect how much energy you can produce from your solar installation here though. For instance, Botevgrad is located within a valley which could mean there are mountains or other topographical features that might cast shadows on your panels at certain times or days; weather patterns such as frequent cloudy or foggy conditions may also reduce sunlight exposure.
To overcome these potential challenges when installing your solar system here:
1) Choose a site with minimal shading especially during peak sun hours (around mid-day). If mountains or buildings cast shadows over where you're planning on putting up your panels then consider another location if possible.
2) If foggy conditions are common then ensure regular maintenance like cleaning off any moisture build-up on panel surfaces which can reduce their efficiency.
3) Consider using tracking systems that move your panels so they're always facing the sun, maximizing their exposure. This may be especially useful during winter months when sunlight is more scarce.
Remember, while Botevgrad might not be the absolute best place in the world for solar power, it's still a pretty good one - and with careful planning and installation, you can definitely generate a decent amount of electricity from your solar panels here.
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 Botevgrad
Seasonal solar PV output for Latitude: 42.9007, Longitude: 23.7866 (Botevgrad, 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 Botevgrad, Bulgaria
To maximize your solar PV system's energy output in Botevgrad, Bulgaria (Lat/Long 42.9007, 23.7866) 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 Botevgrad, 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 Botevgrad, 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 Botevgrad, 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 Botevgrad, 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 Botevgrad, Bulgaria
Botevgrad, Bulgaria is located in a valley surrounded by the Balkan Mountains. The area features a mix of flat lands and hilly terrains with some areas covered by forests. The region has a temperate-continental climate, which means it experiences hot summers and cold winters.
As for large-scale solar PV installations, flat open areas would be the most suitable. These could include agricultural lands or other unused open spaces that receive plenty of sunlight throughout the year. In addition to flatness and sunlight exposure, factors such as proximity to power grids and local regulations should also be considered.
However, given Botevgrad's location in a valley, it may experience less sun exposure compared to more elevated regions or those without mountainous obstructions. Therefore, thorough site-specific solar irradiance studies would need to be conducted to determine the viability of large-scale solar projects in this area.
It's also worth noting that while installing panels on hill slopes can sometimes be technically feasible, it often leads to increased costs due to more complex installation procedures and potential land stability issues.
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!
Citation Guide
Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Tuesday 27th of February 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.
