Bercher, Vaud, Switzerland, situated at 46.6895° N latitude and 6.7049° E longitude, presents a mixed scenario for solar PV energy generation throughout the year. This location in the Northern Temperate Zone experiences significant seasonal variations in solar energy production.
Seasonal Solar Performance
Summer stands out as the most productive season, with an impressive daily output of 6.04 kWh per kW of installed solar capacity. Spring follows as the second-best season, generating 4.94 kWh/day. Autumn sees a considerable drop to 3.15 kWh/day, while winter experiences the lowest production at 1.63 kWh/day.
The substantial difference between summer and winter production highlights the challenge of consistent year-round energy generation at this location. However, the relatively strong performance during spring and summer months can help offset the lower production during autumn and winter.
Optimal Panel Installation
For fixed panel installations in Bercher, Vaud, the ideal tilt angle to maximize year-round solar production is 40 degrees facing South. This angle is calculated to optimize energy capture across all seasons, considering the location's latitude and the Earth's elliptical orbit.
Environmental and Weather Factors
Several factors could potentially impact solar production in Bercher:
- Snow accumulation in winter, which can cover panels and reduce efficiency
- Fog and low cloud cover, common in Swiss valleys, potentially reducing sunlight exposure
- Shorter daylight hours during winter months
To mitigate these challenges, consider implementing the following measures:
- Install panels at a steeper angle to encourage snow sliding off
- Use anti-reflective coatings to maximize light absorption in low-light conditions
- Implement a robust cleaning schedule to remove snow and debris
- Consider bifacial panels to capture reflected light from snow-covered ground
While Bercher's location presents some challenges for year-round solar energy production, proper system design and maintenance can help maximize energy generation, 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 245 locations across Switzerland. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.
Link: Solar PV potential in Switzerland by location
Solar output per kW of installed solar PV by season in Bercher
Seasonal solar PV output for Latitude: 46.6895, Longitude: 6.7049 (Bercher, Switzerland), 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 40° South in Bercher, Switzerland
To maximize your solar PV system's energy output in Bercher, Switzerland (Lat/Long 46.6895, 6.7049) throughout the year, you should tilt your panels at an angle of 40° 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 Bercher, Switzerland
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 Bercher, Switzerland. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 40° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 30° South in Summer | 50° South in Autumn | 60° South in Winter | 39° 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 Bercher, Switzerland
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 Bercher, Switzerland.
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 Bercher, Switzerland
The topography around Bercher, Switzerland, is characterized by a picturesque landscape typical of the Swiss Plateau region. Situated in the canton of Vaud, Bercher is nestled within gently rolling hills and lush green valleys. The terrain is primarily composed of undulating farmland, interspersed with patches of forest and small streams. To the north and east of Bercher, the land gradually rises towards the Jura Mountains, creating a series of low hills and ridges. These elevations provide a scenic backdrop to the area, with some slopes covered in dense woodlands. To the south and west, the landscape becomes slightly flatter, opening up into broader valleys and agricultural plains. The region surrounding Bercher is part of the Gros-de-Vaud district, known for its fertile soil and agricultural productivity. This area features a mix of open fields, pastures, and small clusters of trees, creating a patchwork of green hues across the countryside. Small villages and hamlets dot the landscape, connected by winding roads that follow the natural contours of the land.
Potential for Large-Scale Solar PV
When considering areas nearby that would be most suited to large-scale solar photovoltaic (PV) installations, several factors come into play. The ideal locations would combine favorable topography, minimal shading, and sufficient land availability. The gently sloping hillsides to the south of Bercher could potentially offer suitable sites for solar PV installations. These areas often receive more direct sunlight throughout the day and have a natural tilt that can be advantageous for solar panel placement. However, care must be taken to avoid disrupting prime agricultural land or areas of ecological importance. Some of the flatter, open fields in the valleys to the west and southwest of Bercher might also be considered for large-scale solar projects. These areas typically have fewer obstructions that could cast shadows on the panels, allowing for more consistent energy production throughout the day. It's important to note that while the topography around Bercher offers some potential for solar PV development, any large-scale installations would need to be carefully planned and implemented. Considerations such as local zoning regulations, environmental impact assessments, and the preservation of the region's natural beauty and agricultural heritage would all play crucial roles in determining the feasibility and locations of such projects.Switzerland solar PV Stats as a country
Switzerland ranks 25th in the world for cumulative solar PV capacity, with 3,449 total MW's of solar PV installed. This means that 4.70% of Switzerland's total energy as a country comes from solar PV (that's 16th in the world). Each year Switzerland is generating 399 Watts from solar PV per capita (Switzerland ranks 6th in the world for solar PV Watts generated per capita). [source]
Are there incentives for businesses to install solar in Switzerland?
Yes, there are several incentives for businesses wanting to install solar energy in Switzerland. The Swiss Federal Office of Energy (SFOE) offers a range of financial support measures for businesses that want to invest in renewable energy sources such as solar power. These include grants, loans and tax deductions. Additionally, the Swiss 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 for businesses.
Do you have more up to date information than this on incentives towards solar PV projects in Switzerland? 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: Monday 2nd of December 2024
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.




