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Flag of BulgariaSolar PV Analysis of Silistra, Bulgaria

Graph of hourly avg kWh electricity output per kW of Solar PV installed in Silistra, Bulgaria (by season)

Silistra, Bulgaria is a location that can produce varying amounts of solar energy throughout the year. The amount of electricity generated from solar panels depends on the season. In summer, each kilowatt (kW) of installed solar power can generate 6.95 kilowatt-hours (kWh) per day. This reduces to 3.31 kWh/day in autumn and drops further to 1.61 kWh/day in winter before increasing again to 5.18 kWh/day in spring.

This means that Silistra is a good place for generating solar energy particularly during the summer and spring months due to longer daylight hours and higher sun intensity compared to autumn and winter months where daylight hours are shorter and sunlight intensity is lower.

For maximum efficiency, fixed panel installations should be tilted at an angle of 37 degrees facing southwards as this helps capture more sunlight over the course of a year.

However, there could be local factors affecting how much electricity you can generate from your solar panels such as weather conditions or environmental issues like shading from nearby buildings or trees which might block direct sunlight hitting your panels especially if they're located close by or at certain times when the sun's path is obstructed.

To ensure greater energy production despite these potential challenges, one preventative measure would be properly planning your installation site so that it's free from obstructions that may cause shading on your panels not just now but also considering future developments around your area like new building constructions or growing trees.

Also consider installing additional equipment like trackers which allow your panels to follow the sun’s path across the sky thereby maximizing their exposure to direct sunlight although this would increase costs but could potentially yield higher returns over time depending on specific circumstances such as available space for installation among others.

Another thing worth noting is regular cleaning and maintenance since dust accumulation or snowfall during winter months could cover up surface area reducing efficiency while ensuring structural integrity against strong winds or heavy snow loads would also be beneficial.

In conclusion, Silistra is a pretty decent place for solar energy production especially during summer and spring months but careful planning and regular maintenance would be key to maximizing potential output 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 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 Silistra

Seasonal solar PV output for Latitude: 44.1224, Longitude: 27.2587 (Silistra, 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:

Summer
Average 6.95kWh/day in Summer.
Autumn
Average 3.31kWh/day in Autumn.
Winter
Average 1.61kWh/day in Winter.
Spring
Average 5.18kWh/day in Spring.

 

Ideally tilt fixed solar panels 37° South in Silistra, Bulgaria

To maximize your solar PV system's energy output in Silistra, Bulgaria (Lat/Long 44.1224, 27.2587) 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.

The sun
At Latitude: 44.1224, Longitude: 27.2587, the ideal angle to tilt panels is 37° South

Seasonally adjusted solar panel tilt angles for Silistra, 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 Silistra, Bulgaria. 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 36° South in Spring

Assuming you can modify the tilt angle of your solar PV panels throughout the year, you can optimize your solar generation in Silistra, Bulgaria as follows: In Summer, set the angle of your panels to 28° facing South. In Autumn, tilt panels to 48° facing South for maximum generation. During Winter, adjust your solar panels to a 58° angle towards the South for optimal energy production. Lastly, in Spring, position your panels at a 36° angle facing South to capture the most solar energy in Silistra, Bulgaria.

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 Silistra, 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 Silistra, Bulgaria.

Our calculation method

  1. Solar Position:
    We determine the Sun's position on the Winter solstice using the location's latitude and solar declination.
  2. Shadow Projection:
    We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle.
  3. 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.






Please enter information above to calculate panel spacing.

Topography for solar PV around Silistra, Bulgaria

Silistra, Bulgaria is located in the northeastern part of the country, near the border with Romania. The topography of this region is relatively flat and low-lying, as it lies in the Danubian Plain. This area is characterized by fertile soils and a temperate continental climate with hot summers and cold winters.

The flat terrain makes Silistra an excellent location for large-scale solar PV installations due to several reasons:

1. Flat areas are ideal for solar panel installation because they receive direct sunlight exposure without any obstructions such as mountains or hills.
2. The region's climate provides ample sunshine throughout the year which maximizes energy production from solar panels.
3. The presence of fertile soil suggests that land use conflicts could be minimal since less productive agricultural lands can be used for solar farms.

However, specific site suitability would depend on other factors like local zoning laws, proximity to power transmission lines, and potential environmental impacts which need to be assessed at a more detailed level.

Potential locations around Silistra for large scale solar PV could include areas south of the city where there seems to be less population density based on satellite imagery (thus potentially less conflict over land use) or unused industrial zones if available.

Remember that while these general characteristics suggest potential suitability, actual site selection should involve detailed feasibility studies including technical assessments and consultations with local stakeholders.

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

Article: Solar PV Analysis of Silistra, Bulgaria
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Thursday 2nd 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.

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Calculate Your Optimal Solar Panel Tilt Angle