Alpine Solar Power: Sidenplangg Impresses with Winter Production
The Sidenplangg alpine solar plant is delivering its first encouraging production figures. Discover why electricity generation in the high mountains during the winter months is three times higher than in the valley.
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The Sidenplangg solar plant provides valuable winter electricity.
Since mid-November, the first phase of Central Switzerland's first alpine solar plant has been producing renewable energy. The initial production figures from the past winter months have been extremely positive.
Advantages of Alpine Photovoltaics
Especially on days with fog in the valley floor, the plant at around 2,000 meters above sea level demonstrates its strengths. Production in the winter months for alpine plants is approximately three times higher than for comparable installations in the lowlands. This is a decisive factor for Switzerland's winter electricity supply.
Start of the Next Construction Phase
As soon as the snowmelt is complete, the next important phase of the project will begin in April 2026. The plan includes:
- The assembly of over 900 substructures.
- The installation of approximately 5,600 additional modules.
- Increasing the output to approximately 5 megawatt peak by the onset of winter 2026.
Regional Value Creation
It is particularly noteworthy that a large part of the work is being carried out by local companies. According to current planning, the visionary 40-million-franc project in the municipality of Spiringen is scheduled to be fully completed by the end of 2028.
The plant in Sidenplangg is one of the few pioneer projects in the field of alpine solar energy that has already been concretely implemented and put into operation.
Would you like to learn more about our forward-looking energy projects? Visit us at our booth at Powertage 2026 or find out directly on our website about current progress.
