Apples, Vaud, Switzerland, located at coordinates 46.555, 6.4251 in the Northern Temperate Zone, presents varying conditions for solar PV energy generation throughout the year. This location experiences significant seasonal fluctuations in solar energy production that are worth considering for anyone planning a solar installation.

Seasonal Solar Production

Solar energy generation at this location shows marked seasonal differences. Summer is the most productive season with an average daily output of 6.00kWh per kW of installed capacity. Spring follows as the second most productive season, generating 4.89kWh/day per kW installed. Production drops considerably in autumn to 3.09kWh/day, while winter sees the lowest generation at just 1.58kWh/day per kW installed.

This pattern creates a roughly 4:1 ratio between the best and worst seasons, with summer producing nearly four times the energy of winter. The substantial difference highlights the seasonal nature of solar production in this temperate location.

Optimal Panel Installation

For fixed solar panel installations in Apples, Vaud, the ideal tilt angle to maximize year-round energy production is 40 degrees facing South. This specific angle has been calculated to optimize annual solar collection based on the location's latitude and seasonal sun paths, taking into account the Earth's elliptical orbit and the varying solar potential throughout the year.

Environmental Considerations

Several environmental factors could potentially impact solar production at this Swiss location:

• Snow accumulation during winter months can significantly reduce panel output by blocking sunlight. Installing panels at the recommended 40-degree angle helps with natural snow shedding, though manual clearing may occasionally be necessary.
• Alpine fog and low cloud cover, common in Swiss valleys during autumn and winter, can reduce solar irradiance. Positioning panels above typical fog levels where possible can help mitigate this issue.
• Potential shading from surrounding mountains or trees should be carefully assessed before installation, as the mountainous Swiss topography can create localized shading issues.

To maximize production despite these challenges, consider using micro-inverters or power optimizers that minimize the impact of partial shading. Regular maintenance, including panel cleaning especially after snowfall, will also help maintain optimal performance throughout the year.

Overall, while Apples offers excellent solar potential during summer and spring, a properly designed system accounting for the significant seasonal variations and local environmental factors is essential for optimal year-round performance.

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 Apples

Seasonal solar PV output for Latitude: 46.555, Longitude: 6.4251 (Apples, 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 Apples, Switzerland

To maximize your solar PV system's energy output in Apples, Switzerland (Lat/Long 46.555, 6.4251) 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 Apples, 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 Apples, 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 Apples, 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 Apples, 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 Apples, Switzerland

Topography of Apples, Switzerland

Apples is a picturesque commune located in the canton of Vaud in western Switzerland. The landscape around Apples is characterized by rolling hills and gentle slopes, situated on the Swiss Plateau (Plateau Suisse) between Lake Geneva to the south and the Jura Mountains to the northwest. The terrain gradually rises from an elevation of approximately 600 meters above sea level in the village center to higher elevations as one moves northwestward toward the Jura range. The topography features a mix of agricultural fields, scattered forests, and small settlements. The land has a generally south-facing aspect across much of the region, with numerous small valleys and ridgelines creating a varied landscape. Several small streams flow through the area, eventually draining toward Lake Geneva. The relatively gentle nature of the topography has made this region historically suitable for agriculture, with numerous orchards, vineyards, and crop fields dotting the landscape.

Solar PV Potential in the Region

The topographical characteristics around Apples offer several promising areas for solar photovoltaic installations. The most suitable locations for large-scale solar PV development would be: The south-facing slopes throughout the region provide natural advantages for solar collection. These areas receive more direct sunlight throughout the year compared to north-facing terrain. Particularly promising are the gradual south-facing inclines between Apples and the Lake Geneva shoreline, where the terrain offers good exposure without significant shadowing from mountains. The agricultural plateau areas with minimal tree cover present excellent opportunities for solar farm development. These relatively flat expanses allow for simpler installation of solar arrays and minimize the engineering challenges associated with steep terrain. The areas between Apples and neighboring communities like Morges offer substantial open space that could accommodate large-scale installations. Some of the slightly elevated ridgelines in the region would be advantageous for solar development as they experience less fog and haze compared to the lower-lying areas closer to Lake Geneva. These higher positions can sometimes remain above the morning fog that occasionally settles in the lower valleys, particularly during autumn and winter months. The region benefits from the reflective properties of Lake Geneva to the south, which can marginally enhance solar radiation through albedo effects on clear days. Solar installations on the gentle slopes facing the lake might capture both direct and reflected solar energy. It's worth noting that the Jura Mountains to the northwest create some limitation, as they can cast shadows during late afternoon in certain seasons, particularly winter. Therefore, sites further from the mountain range's shadow effect would generally be preferable for maximum solar collection efficiency.

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.

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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.