Solar PV Analysis of Vilnius, Lithuania
Located in Vilnius, Lithuania (latitude: 54.6816, longitude: 25.3225), this site offers a suitable environment for generating solar PV power throughout the year. The average daily energy production per kW of installed solar capacity varies by season, with 5.77 kWh/day in Summer, 2.00 kWh/day in Autumn, 0.98 kWh/day in Winter, and 3.94 kWh/day in Spring.
The highest energy generation occurs during the summer months due to longer daylight hours and increased sunlight intensity compared to other seasons. While occasional heavy rain or snowfall may occur throughout the year, these conditions are not prevalent at this location within the Northern Temperate Zone and do not significantly impact the efficiency or reliability of solar power generation over time.
Furthermore, cloud cover is generally low across all four seasons at this location, which enhances its potential for successful solar energy production. To optimize energy output from a fixed panel installation at this site, it is recommended to tilt panels at an angle of 46 degrees facing south.
Although there are no significant environmental or topographical factors that would impede solar production at this location, it is essential to ensure proper maintenance of the solar panels to prevent any potential issues related to dust accumulation or debris buildup on their surface. Regular cleaning and inspection can help maintain optimal performance and maximize energy production from your solar installation throughout 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 16 locations across Lithuania. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.
Link: Solar PV potential in Lithuania by location
Solar output per kW of installed solar PV by season in Vilnius
Seasonal solar PV output for Latitude: 54.6816, Longitude: 25.3225 (Vilnius, Lithuania), 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 46° South in Vilnius, Lithuania
To maximize your solar PV system's energy output in Vilnius, Lithuania (Lat/Long 54.6816, 25.3225) throughout the year, you should tilt your panels at an angle of 46° 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 Vilnius, Lithuania
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 Vilnius, Lithuania. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 46° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 38° South in Summer | 57° South in Autumn | 67° South in Winter | 46° 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 Vilnius, Lithuania
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 Vilnius, Lithuania.
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 Vilnius, Lithuania
The topography around Vilnius, Lithuania is generally flat, with some rolling hills in the surrounding countryside. Areas that are most suited to large-scale solar PV would be those that have a high amount of direct sunlight and relatively low amounts of shade or cloud cover. The nearby countryside would likely be the best option for large-scale solar PV projects, as it is largely free from obstructions such as buildings or trees which could limit the amount of available sunlight.
Lithuania solar PV Stats as a country
Lithuania ranks 61st in the world for cumulative solar PV capacity, with 338 total MW's of solar PV installed. Each year Lithuania is generating 121 Watts from solar PV per capita (Lithuania ranks 36th in the world for solar PV Watts generated per capita). [source]
Are there incentives for businesses to install solar in Lithuania?
Yes, there are incentives for businesses wanting to install solar energy in Lithuania. The Lithuanian government offers a range of financial incentives and tax breaks for businesses that invest in renewable energy sources such as solar power. These include grants, loans, and tax credits. Additionally, the government has set up a feed-in tariff system which guarantees a fixed price for electricity generated from renewable sources such as solar power. This helps to make investing in solar energy more attractive to businesses.
Do you have more up to date information than this on incentives towards solar PV projects in Lithuania? 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 16th of August 2022
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.
