Translated with DeepL

830,000 TJ (terajoules) - this is approximately the total amount of final energy consumed in Switzerland each year.

We still cover two thirds of our energy consumption with fossil fuels such as heating oil, natural gas, petrol, diesel and paraffin. We need them primarily to heat rooms, for transport or in industrial plants. Switzerland therefore still has high per capita_CO2 emissions.

The situation is better when it comes to electricity: Switzerland produces its electricity largely without_{CO2 emissions}. This is mainly due to hydropower.

In order to solve the disadvantages of today's energy supply, other new renewable energy sources are needed in addition to hydropower. Wind power, solar energy, geothermal energy, wood, biogas, waste heat from large industrial plants or combined heat and power plants that generate electricity and heat at the same time are examples of how other sources can be utilised for our energy supply.

However, it is also clear that each of these new energy sources cannot solve our energy problem on its own. We need a combination of different technologies. Because each individual technology has its own specific advantages and disadvantages.

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Technoscope is the SATW's technology magazine for young people. It reports competently and entertainingly on technology and technical professions. Technoscope is published three times a year in German, French and Italian. It can be subscribed to free of charge. Existing issues can be downloaded as PDF files.