Schachen, Lucerne, Switzerland, a location in the Northern Temperate Zone, offers varying potential for solar energy generation throughout the year. With its alpine setting, this location experiences significant seasonal fluctuations in solar energy production that are worth understanding before installing solar PV systems.

Seasonal Solar Production

The solar energy production in Schachen follows a predictable seasonal pattern. Summer months deliver the highest output at 5.66 kWh per day for each kilowatt of installed capacity. Spring follows as the second most productive season with 4.79 kWh/day. Autumn sees a significant drop to 2.92 kWh/day, while winter production falls to just 1.46 kWh/day per kilowatt installed.

This pattern creates a pronounced difference between summer and winter production, with summer generating nearly four times the electricity of winter months. Spring and autumn serve as transitional periods, with spring being considerably more productive than fall.

Optimal Panel Installation

For fixed solar panel installations in Schachen, Lucerne, the ideal tilt angle to maximize year-round energy production is 40 degrees facing South. This angle optimizes the annual solar harvest by balancing seasonal variations and the sun's changing position throughout the year.

Environmental and Weather Challenges

Several significant factors can affect solar production in this alpine location:

• Snow accumulation in winter months can cover panels and drastically reduce output during the already low-production season
• Mountain shadows may impact certain locations, creating periods of shade that reduce daily production
• Fog and low cloud cover common in alpine valleys can significantly diminish solar radiation reaching the panels
• Potential for hail damage in summer thunderstorms poses a risk to panel integrity

Preventative Measures

To maximize solar production despite these challenges, several preventative measures are recommended:

• Install panels at steeper angles (possibly beyond the optimal 40 degrees) in areas prone to heavy snowfall to promote snow sliding off
• Conduct a thorough shade analysis before installation to avoid mountain shadow impacts
• Select high-efficiency panels that perform better in diffuse light conditions common during foggy periods
• Use hail-resistant panels with appropriate certification for alpine conditions
• Consider incorporating a snow removal system or access for manual clearing during winter months

With proper planning and preventative measures, a solar PV system in Schachen can still provide significant energy production, particularly from spring through autumn, though winter output will remain limited regardless of installation quality.

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 Schachen

Seasonal solar PV output for Latitude: 47.029, Longitude: 8.1234 (Schachen, 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 Schachen, Switzerland

To maximize your solar PV system's energy output in Schachen, Switzerland (Lat/Long 47.029, 8.1234) 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 Schachen, 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 Schachen, 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 Schachen, 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 Schachen, 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 Schachen, Switzerland

The topography surrounding Schachen, Switzerland, presents a dynamic landscape characteristic of the Swiss pre-Alpine region. Located in central Switzerland near the border between Lucerne and Aargau cantons, Schachen sits in a valley area with elevations ranging from approximately 400 to 500 meters above sea level. The terrain features gentle rolling hills that gradually rise toward more pronounced elevations in multiple directions, particularly to the south where the terrain becomes increasingly mountainous as it transitions toward the Swiss Alps. The immediate vicinity of Schachen is marked by the presence of the Wigger River valley, creating a relatively flat corridor that runs roughly north-south. This valley floor provides some of the more level terrain in the region, though it is relatively narrow and primarily utilized for agriculture and settlement. The surrounding hillsides display moderate slopes with a patchwork of forests, pastures, and cultivated fields.

Solar PV Potential Areas

For large-scale solar photovoltaic installations, the most suitable areas near Schachen would be the south-facing slopes of the surrounding hills, particularly those with minimal forest cover. These locations offer favorable solar exposure throughout the day while avoiding the shadowing effects common in valley bottoms. The gently sloping agricultural areas to the west and northwest of Schachen present promising opportunities, as they combine reasonable terrain with good solar aspect. The slightly elevated plateaus found between 500-700 meters elevation in the vicinity provide another category of potentially suitable sites. These areas often feature less intensive agricultural use and could accommodate larger installations while benefiting from reduced fog exposure compared to the valley floor. It's worth noting that the region experiences some topographical constraints for truly large-scale solar development. The combination of relatively steep terrain in some directions, extensive forest coverage, and the high value placed on agricultural land limits the availability of extensive contiguous areas. The most practical approach would likely involve multiple medium-sized installations distributed across favorable locations rather than a single massive solar farm. The northern approaches to Schachen, extending toward the Aargau canton, feature more gradual topography and might offer better opportunities for larger installations, particularly in areas where the land is less productive for agriculture or where dual-use approaches (agrivoltaics) could be implemented.

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.