Hardly any other approach to renewable energy is as established as photovoltaic systems. They adorn the roofs of new and old houses in huge numbers. In the last few years, several mistakes have accumulated, which we would like to eliminate for you today.

1. Photovoltaics is not worth it!
Probably the most notorious statement about the photovoltaic system is “It is not worth it”. But in terms of sustainability alone, a photovoltaic system is always worthwhile. Because the sun, the producer of many kilowatt hours, supplies us with almost immeasurable energy. This means that a building not only protects the environment, but also draws electricity from a long-lasting source. In addition, the electricity generated is obtained completely free of charge, while electricity from the domestic grid is purchased on average for 30 cents per kilowatt. It is known that owners of solar systems save more than half of the costs.

2. Solar systems are not subsidised!
Germany still offers a feed-in tariff, which lays the foundation for investment and is also guaranteed by the state. Since the abolition of the solar cover in 2017, subsidies for newly connected systems are safe again. In addition, there are federal state or local authority specific subsidy programmes that support retrofitting. A detailed list of offers is however advisable.

3. The fire brigade does not extinguish houses with solar systems!
Even today there is still a fear that the fire brigade will not extinguish houses with solar systems, but will let them burn down in a controlled manner. Although the high electrical voltage is a challenge for emergency services, the fire brigade is obliged to extinguish all fires. Since 2014, there have been guidelines that describe the correct procedure for houses with solar systems. Maintaining safety distances can already work wonders here, so that the current does not continue to change when it spreads.

4. Only the south side is worthwhile!
It is often assumed that only solar systems in more southern regions produce enough products to be profitable. However, this statement is not quite correct either. The east or west side is an excellent place for a solar plant. The missing kilowatt hours compared to a southern side can be compensated with additional modules. Even in Hamburg an average of 1400 hours of sunshine can be expected, which is already worthwhile for such a system. Of course there are regional differences, but the sun in Germany is always profitable for homeowners.