Wabern, Bern, Switzerland, located at 46.9188°N, 7.4604°E, presents a moderate potential for solar energy generation throughout the year. This location in the Northern Temperate Zone experiences significant seasonal variations in solar output, which affects the overall efficiency of photovoltaic (PV) systems.

Seasonal Solar Performance

Summer stands out as the most productive season for solar energy in Wabern, Bern, with an average daily output of 6.00 kWh per kW of installed solar capacity. Spring follows as the second-best season, generating 4.89 kWh/day. Autumn sees a notable decrease in production at 3.09 kWh/day, while winter experiences the lowest output at 1.58 kWh/day.

The substantial difference between summer and winter production highlights the challenges of relying solely on solar power in this region. However, the relatively strong performance during spring and summer months makes solar energy a viable option for supplementing electricity needs, especially from late March through September.

Optimal Panel Installation

For fixed panel installations in Wabern, Bern, the ideal tilt angle to maximize year-round solar production is 40 degrees facing South. This angle optimizes the panels' exposure to sunlight throughout the year, balancing the varying sun positions across seasons.

Environmental and Weather Considerations

Several factors can impact solar production in Wabern:

• Snow accumulation in winter can significantly reduce panel efficiency
• Frequent cloudy days, especially in autumn and winter, may limit solar output

To mitigate these issues, consider installing panels at a steeper angle to promote snow shedding and using high-efficiency panels that perform better in low-light conditions. Regular maintenance, including snow removal and panel cleaning, can also help maintain optimal performance.

While Wabern's location presents some challenges for year-round solar energy production, proper system design and maintenance can still make solar PV a valuable component of a diversified energy strategy in this Swiss community.

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 Wabern

Seasonal solar PV output for Latitude: 46.9188, Longitude: 7.4604 (Wabern, 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 Wabern, Switzerland

To maximize your solar PV system's energy output in Wabern, Switzerland (Lat/Long 46.9188, 7.4604) 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 Wabern, 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 Wabern, 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
31° 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 Wabern, 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 Wabern, Switzerland.

Our calculation method

1. Solar Position:
   We determine the Sun's position on the Winter solstice using the location's latitude and solar declination.
2. Shadow Projection:
   We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle.
3. 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 Wabern, Switzerland

The topography around Wabern, Switzerland, is characterized by a diverse landscape that combines urban areas, gentle slopes, and more rugged terrain. Wabern itself is situated on the western outskirts of Bern, the Swiss capital, in a relatively flat area along the Aare River. The immediate surroundings of Wabern feature a mix of residential neighborhoods, parklands, and agricultural fields. As one moves away from the town center, the landscape becomes more varied. To the west and southwest, the terrain gradually rises towards the Längenberg, a hilly region that forms part of the Swiss Plateau. These hills are predominantly covered in forests and pastures, with scattered farmsteads and small villages dotting the landscape. To the east and southeast, the land remains relatively flat as it extends towards Bern and its suburbs. This area is more densely populated and developed, with a mix of urban and suburban environments. The Aare River, which flows northward past Wabern, has carved a shallow valley through this region, creating some localized variations in elevation.

Potential Areas 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 have ample sunlight exposure, relatively flat terrain, and minimal environmental or cultural constraints. One promising area for solar PV development could be the agricultural lands to the south and southwest of Wabern. These areas offer gently sloping terrain with good sun exposure and are already being used for human activities, minimizing additional environmental impact. However, careful consideration would need to be given to balancing energy production with agricultural needs. Another potential location could be found in the more open areas to the north and northwest of Wabern, where there are fewer dense forests and urban developments. These regions may offer suitable sites for solar farms, particularly on land that is not prime agricultural real estate or ecologically sensitive. It's important to note that while the hills of the Längenberg region receive good sunlight, their steeper slopes and forested areas make them less ideal for large-scale solar installations. Additionally, any solar PV projects in the area would need to be carefully planned to respect Switzerland's strict environmental regulations and the region's natural beauty. Ultimately, detailed site surveys and environmental impact assessments would be necessary to determine the most appropriate locations for large-scale solar PV projects in the vicinity of Wabern, taking into account not only topographical suitability but also grid connectivity, local regulations, and community acceptance.

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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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.