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Solar system
The sun is our future
The sun is an inexhaustible source of energy — in contrast to fossil fuels gas and oil. It secures energy supply for years at almost no cost and is even more climate-friendly. It is clear to us that the sun is our future. Also because a solar system can be easily combined with other energy sources.
Energy Strategy 2050: Solar power for Switzerland
The end of the life of Swiss nuclear power plants is foreseeable and reducing oil and gas consumption is an obligation for climate policy. By voting yes to Energy Strategy 2050, the people have laid the basis for a secure, clean and affordable energy supply in Switzerland. Electricity and heat from the sun will play a central role in this — they will become the second most important energy source after hydropower. 3% of Switzerland's electricity demand already comes from around 70,000 solar systems. With the Energy Strategy 2050, it should be 20% one day. (Source: Swisssolar).
Switzerland's current electricity needs are already met by around 70,000 solar systems.
Switzerland's electricity demand will one day be met by the Energy Strategy 2050.
(Source: Swisssolar)
Photovoltaics
A photovoltaic system, often referred to as a solar power system, converts sunlight directly into electrical energy. This is done by solar cells, which are usually installed on the roofs of houses or other buildings. These solar cells consist of a material that can absorb sunlight and convert it into electricity. When the sun shines on the solar cells, they generate electricity, which can then either be used directly in the house, stored in batteries or fed into the public power grid.
Possible uses of solar power systems
Solar system for hot water
The simplest type of system provides hot water for the kitchen and bathroom. For a four-person household, 4-6 m2 collectors combined with a 400-500 lt water heater are sufficient.
Solar system for hot water and heating backup
Hot water and room heating systems supply the house with heat from spring to autumn and support the heating in winter. This saves fuel costs and emissions. The solar system is connected to a heating system and a solar storage tank. A single-family home requires approx. 10-15 m2 of collector area and a solar storage tank with a volume of around 1500 to 2000 lt.
Assembly structures
East/West flat roof
Assembly systems with east/west orientation have the advantage that electricity production is better distributed throughout the day. Compact installation on the roof allows energy yield to be maximized and installation times reduced. No roof penetration is required for installation.
Flat roof south
South-facing mounting systems have the advantage that electricity production per module can be maximized. The structure is similar to the East/West system.
Pitched roof
For the existing pitched roof, the mounting system is attached to the roof substructure. The modules are either inserted into profile rails or secured with clamps. There are various mounting systems for tiled, trapezoidal and corrugated ternite roofs.
One photovoltaics investment is worthwhile
In Switzerland, there are various funding programs and financial incentives for the installation of solar power systems, also known as photovoltaic systems. The exact funding conditions may vary from canton to canton, but here are some general ways to subsidize:
one-time payment
For smaller photovoltaic systems, it is possible to receive a one-off payment. This one-time fee covers part of the investment costs and is paid out after the plant is put into operation.
Cost-covering feed-in tariff
This funding program is intended for larger plants and offers long-term remuneration for the solar power fed into the power grid. However, KEV is often oversubscribed and there are waiting lists.
Tax benefits
Investments in photovoltaic systems can be deducted for tax purposes. This can reduce the tax burden for owners.
Self-consumption promotion
In some cantons, there are incentives for self-consumption of the solar power generated. This means that plant operators are financially rewarded when they use the electricity they produce themselves.
Cantonal and municipal funding programs:
In addition to national funding, many cantons and municipalities offer their own funding programs. These may include grants, cheap loans, or other benefits.
