Solar Energy Potential in Buchs, Aargau, Switzerland

Buchs, Aargau, Switzerland, located at 47.396°N, 8.0869°E in the Northern Temperate Zone, offers varying potential for solar energy generation throughout the year. The location experiences significant seasonal fluctuations in solar PV output, which is typical for regions at higher latitudes. Summer presents the most favorable conditions for solar energy production in Buchs, Aargau, with an average daily output of 5.71 kWh per kW of installed solar capacity. This high yield is due to longer daylight hours and more direct sunlight during the summer months. Spring follows as the second-most productive season, generating 4.85 kWh per day on average. Autumn sees a noticeable decrease in solar output, with daily production dropping to 2.99 kWh per kW installed. Winter, as expected, offers the least favorable conditions for solar energy generation, with a daily average of only 1.52 kWh per kW installed. This significant reduction is due to shorter days, lower sun angles, and potentially increased cloud cover during the winter months.

Optimal Panel Installation

For those considering a fixed panel installation in Buchs, Aargau, the ideal tilt angle to maximize year-round solar production is 40 degrees facing South. This angle is calculated to optimize the panels' exposure to sunlight throughout the year, taking into account the location's latitude and seasonal variations in sun position.

Environmental and Weather Considerations

While Buchs generally offers good conditions for solar energy production, there are some factors that could potentially impact solar panel efficiency: 1. Snow accumulation in winter: Heavy snowfall can temporarily reduce panel output if not promptly removed. 2. Fog and low clouds: The region may experience periods of fog, particularly in autumn and winter, which can diminish solar radiation reaching the panels. To mitigate these issues, consider the following preventative measures:

• Install panels at a steeper angle to promote snow sliding off
• Use snow-shedding coatings on panels
• Implement a regular cleaning schedule, especially after snowfall
• Choose high-efficiency panels that perform well in low-light conditions

By addressing these factors and optimizing panel placement, solar energy systems in Buchs can still achieve good year-round performance, despite the seasonal variations in output.

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 Buchs

Seasonal solar PV output for Latitude: 47.396, Longitude: 8.0869 (Buchs, 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 Buchs, Switzerland

To maximize your solar PV system's energy output in Buchs, Switzerland (Lat/Long 47.396, 8.0869) 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 Buchs, 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 Buchs, 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	40° 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 Buchs, 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 Buchs, 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 Buchs, Switzerland

The topography around Buchs, Switzerland is characterized by a mix of gentle valleys and rolling hills, typical of the Swiss Plateau region. Buchs itself is situated in the Rhine Valley, which is relatively flat and open. To the south and west of Buchs, the terrain gradually rises into the foothills of the Alps, with increasingly steep slopes and higher elevations.

The immediate area surrounding Buchs features agricultural land, including fields and pastures, interspersed with small patches of forest. As you move away from the town, especially to the south, the landscape becomes more varied, with a combination of farmland, wooded areas, and gentle hills. The Rhine River, which forms part of the border between Switzerland and Liechtenstein, flows to the east of Buchs, creating a wide, flat riverine environment.

For large-scale solar PV installations, the most suitable areas nearby would likely be found in the flatter portions of the Rhine Valley, particularly to the north and east of Buchs. These areas offer several advantages for solar energy production:

1. They have relatively level terrain, which simplifies the installation process and reduces construction costs.
2. The open landscape provides good exposure to sunlight throughout the day, maximizing energy production potential.
3. Agricultural land in these areas might be more easily repurposed for solar farms, as opposed to forested or mountainous regions.

However, it's important to note that the use of agricultural land for solar installations can be a contentious issue. Therefore, planners might also consider using existing structures, such as large industrial rooftops or parking lots, for solar PV installations. These options could provide significant surface area for solar panels without impacting valuable agricultural land.

While the hilly areas to the south might seem appealing due to their elevation, they are generally less suitable for large-scale solar farms. The uneven terrain would complicate installation and potentially reduce overall efficiency due to shading effects. Additionally, these areas are more likely to be forested or have greater ecological value, making them less ideal for development.

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.