Wejherowo, Pomerania, Poland, situated at latitude 54.6037 and longitude 18.2503, presents a mixed picture for solar energy generation throughout the year. Located in the Northern Temperate Zone, this city experiences significant seasonal variations in solar potential.
Seasonal Solar Performance
Summer stands out as the most productive season for solar energy in Wejherowo, Pomerania, with an impressive daily output of 5.93 kWh per kW of installed solar capacity. Spring follows as the second-best season, generating 4.24 kWh/day. However, the city faces challenges during the colder months, with autumn producing only 1.98 kWh/day and winter seeing a dramatic drop to a mere 0.78 kWh/day.
The stark contrast between summer and winter performance highlights the importance of careful system design to maximize year-round efficiency. For fixed panel installations, the ideal tilt angle to optimize annual production is 45 degrees facing south. This angle helps balance the varying sun positions throughout the year.
Factors Affecting Solar Production
Several environmental and weather-related factors can impact solar energy generation in Wejherowo:
- Long, dark winters: The city's northern latitude results in short days and low sun angles during winter, significantly reducing solar output.
- Cloud cover: The region experiences frequent overcast conditions, particularly in autumn and winter, further diminishing solar potential.
- Snow accumulation: Winter snowfall can cover panels, reducing efficiency if not promptly removed.
Mitigation Strategies
To counteract these challenges and enhance solar energy production, consider the following measures:
- Use high-efficiency panels designed for low-light conditions
- Install snow sensors and heating elements to prevent snow accumulation
- Implement a robust cleaning and maintenance schedule
- Consider a hybrid system combining solar with other renewable energy sources
While Wejherowo's location presents some obstacles for year-round solar energy production, careful planning and the implementation of appropriate technologies can still make solar PV a viable option for supplementing energy needs, particularly during the more favorable spring and summer months.
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 150 locations across Poland. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.
Link: Solar PV potential in Poland by location
Solar output per kW of installed solar PV by season in Wejherowo
Seasonal solar PV output for Latitude: 54.6037, Longitude: 18.2503 (Wejherowo, Poland), 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 45° South in Wejherowo, Poland
To maximize your solar PV system's energy output in Wejherowo, Poland (Lat/Long 54.6037, 18.2503) throughout the year, you should tilt your panels at an angle of 45° 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 Wejherowo, Poland
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 Wejherowo, Poland. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 45° 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 | 56° 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 Wejherowo, Poland
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 Wejherowo, Poland.
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 Wejherowo, Poland
Wejherowo, a town in northern Poland, is situated in a region characterized by diverse topography. The landscape surrounding the town is a blend of gentle hills, forested areas, and low-lying plains. To the north of Wejherowo, the terrain gradually slopes towards the Baltic Sea, creating a coastal plain with sandy beaches and dunes. This coastal area is approximately 15 kilometers from the town center. To the south and east of Wejherowo, the land becomes more undulating, with rolling hills and small valleys. This area is part of the Kashubian Lake District, known for its numerous lakes, forests, and picturesque countryside. The hills in this region typically range from 100 to 200 meters above sea level, providing a pleasant contrast to the flatter coastal areas. The western side of Wejherowo features a mix of agricultural land and forested areas. The terrain here is generally flatter compared to the southern regions, with occasional gentle slopes and small streams cutting through the landscape.
Potential for Large-Scale Solar PV
When considering areas near Wejherowo for large-scale solar PV installations, several factors come into play. The most suitable locations would likely be found in the flatter, open areas to the west and southwest of the town. These regions offer several advantages for solar energy production: 1. Open terrain: The agricultural lands and cleared areas provide ample space for large solar arrays without the need for extensive land clearing. 2. Minimal shading: The relatively flat landscape reduces the risk of shading from nearby hills or forests, maximizing sunlight exposure throughout the day. 3. Accessibility: These areas are generally well-connected by roads, making it easier to transport equipment and maintain the solar installations. 4. Lower land value: Agricultural land typically has a lower cost compared to areas closer to urban centers or tourist destinations, potentially reducing the overall project expenses. However, it's important to note that while these areas may be topographically suitable, other factors such as grid connectivity, local regulations, and environmental considerations would need to be carefully evaluated before proceeding with any large-scale solar PV project. Additionally, the region's latitude means that solar irradiance levels are lower compared to more southern locations, which could impact the overall efficiency and economic viability of solar installations in the area.Poland solar PV Stats as a country
Poland ranks 20th in the world for cumulative solar PV capacity, with 6,257 total MW's of solar PV installed. Each year Poland is generating 165 Watts from solar PV per capita (Poland ranks 32nd in the world for solar PV Watts generated per capita). [source]
Are there incentives for businesses to install solar in Poland?
Yes, there are incentives for businesses wanting to install solar energy in Poland. The Polish government offers a number of financial incentives and tax breaks for businesses that invest in renewable energy sources such as solar power. These include grants, subsidies, and tax credits. Additionally, the government has set up a system of feed-in tariffs which guarantee a certain price per kilowatt hour (kWh) of electricity generated from renewable sources such as solar power. This helps to make investing in solar energy more attractive to businesses by providing them with a guaranteed return on their investment.
Do you have more up to date information than this on incentives towards solar PV projects in Poland? 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: Friday 10th of January 2025
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.




