The location at Siebnen, Schwyz, Switzerland is pretty decent for generating energy through solar photovoltaic (PV) panels year-round. The amount of energy you can expect to generate with one kilowatt of installed solar varies by season. In Summer, it's quite high at 5.71 kilowatt-hours per day; in Spring and Autumn it drops a bit to 4.85 and 2.99 respectively; and in Winter, as you might expect with shorter days and less sunlight, it's the lowest at only 1.52 kilowatt-hours per day.
So if you're thinking about when would be the best time of year to generate solar power at this location, Summer would be ideal followed by Spring due to longer daylight hours and more intense sunlight.
For a fixed panel installation here, the optimal angle to tilt your panels for maximum yearly production from your solar PV system is towards South at an angle of 40 degrees.
As far as local factors that could impact your ability to generate solar power here - there aren't any major ones that stand out for this specific location like extreme weather or topographical challenges such as mountains blocking the sun.
However, there are always general factors that could potentially affect any solar installation - things like shading from nearby trees or buildings can reduce how much sunlight hits your panels; snowfall during winter months (which isn't uncommon in Switzerland) can cover up your panels reducing their efficiency; dust and dirt on the surface of the panels can also reduce their performance over time.
To help ensure greater energy production from your system: keep an eye on potential sources of shading before installing your system; consider installing a snow removal system or manually clean off snow during winter months if necessary; make sure you regularly clean off dust or dirt buildup on the surface of your panels either yourself or through professional services depending upon feasibility.
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 Siebnen
Seasonal solar PV output for Latitude: 47.1494, Longitude: 8.9216 (Siebnen, 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 Siebnen, Switzerland
To maximize your solar PV system's energy output in Siebnen, Switzerland (Lat/Long 47.1494, 8.9216) 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 Siebnen, 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 Siebnen, 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 | 61° 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 Siebnen, 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 Siebnen, 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 Siebnen, Switzerland
Siebnen, Switzerland is located in the Swiss Plateau region surrounded by the Alps. The topography around Siebnen includes a mix of flatlands, rolling hills and mountains. It is located near Lake Zurich and has several smaller bodies of water nearby.
In terms of large-scale solar PV installations, flat or gently sloping areas are typically most suitable because they allow for easier installation and maintenance, as well as more efficient energy production due to better sunlight exposure. Therefore, the flatlands and rolling hills in this region could be potential sites for large-scale solar PV projects.
However, it's important to note that factors beyond just topography can influence suitability for solar power. These include local climate (amount of sunshine), land use restrictions or protections (such as agricultural land or protected natural areas), proximity to power grids for energy transmission, and local community support or opposition.
Moreover, while mountainous regions might not be traditionally considered ideal due to their steep slopes and potentially challenging installation conditions; with appropriate technology such as bifacial panels which can capture sunlight from both sides or tracking systems which follow the sun's movement across the sky - even these locations can be utilized effectively.
A detailed feasibility study considering all these factors would need to be conducted before deciding on specific sites for large-scale solar PV installations near Siebnen.
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!
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Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Sunday 14th of January 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.




