Based on the given data, Claro, Ticino, Switzerland is a decent location for generating solar energy throughout the year. The amount of electricity produced from solar power varies with each season.
During summer and spring, when there's more sunlight, you can expect to generate more electricity - approximately 5.67 kilowatt-hours (kWh) per day in summer and 5.09 kWh/day in spring for every kilowatt (kW) of installed solar capacity. This means that these seasons are ideal times to generate solar energy at this location.
In autumn and winter however, due to less daylight hours and potentially more cloud cover or foggy conditions, the output decreases significantly - around 3.14 kWh/day in autumn and only about 2.02 kWh/day in winter per kW of installed solar capacity.
For maximum efficiency throughout the year at this particular location, it's recommended that fixed panel installations should be tilted at an angle of 41 degrees facing south.
As for potential factors that could impede solar production at this location; Switzerland is known for its mountainous terrain which could cast shadows on panels depending on their placement and potentially reduce output levels during certain parts of the day or year if not properly positioned. Additionally, snowfall during winter months might cover panels thereby reducing their efficiency until cleared off.
To mitigate these issues:
1) Careful planning can ensure panels are placed where they get maximum sun exposure without being shadowed by mountains or buildings.
2) Regular maintenance including clearing off any accumulated snow from your panels would also help maintain optimal performance during winter months.
Overall though with proper installation & maintenance strategies in place, Claro presents a viable option for harnessing clean renewable energy via Solar PV systems throughout most parts of 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 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 Claro
Seasonal solar PV output for Latitude: 46.2674, Longitude: 9.0328 (Claro, 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 41° South in Claro, Switzerland
To maximize your solar PV system's energy output in Claro, Switzerland (Lat/Long 46.2674, 9.0328) throughout the year, you should tilt your panels at an angle of 41° 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 Claro, 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 Claro, Switzerland. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 41° 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 Claro, 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 Claro, 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 Claro, Switzerland
Claro, Switzerland is located in the canton of Ticino, which is characterized by its mountainous topography. It lies in the Swiss Alps and surrounded by peaks such as Pizzo di Claro and Cima dell'Uomo. The region has steep slopes, deep valleys and high altitude variations.
For large-scale solar PV installations, relatively flat or gently sloping areas are typically preferred to reduce installation costs and maximize sun exposure. Given the mountainous nature around Claro, it might be challenging to find suitable large-scale sites without significant terrain modification.
However, south-facing slopes could potentially be used for solar PV as they receive more sunlight due to their orientation towards the sun. Moreover, rooftops of buildings in town can also be utilized for smaller scale solar panel installation.
As for specific locations nearby that might be suitable for larger scale solar PV projects - this would require a detailed site survey taking into account factors like local weather patterns (including cloud cover), land ownership issues etc., but potentially flatter areas or valleys between mountains could provide better conditions.
In addition to these physical considerations though there would also need to consider other factors including access to power grid infrastructure and potential environmental impacts before deciding on a location.
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: Friday 14th of June 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.




