Why are there solar panels in Germany even in sheds, and in Russia they are worth their weight in gold (free electricity is not for Russia)
Solar panels are still a novelty in our country. Solar energy is the cleanest, safest and, according to many experts, promising. At the same time, no one mentions that mercury, chromium, lead and other harmful components are used in the manufacture of solar panels. Panels are a source of hazardous waste.
It is believed that if the entire planet switches to solar energy, it will reduce the reflectivity of the planet, which will lead to global warming.
We often hear in advertisements that solar panels can save energy and our electricity costs. It's true. But there are drawbacks that many do not take into account when installing a miracle on the roof of houses - panels.
Minuses
Solar panels have been serving for over 45 years. Payback in 20-30 years. After this period, the owner of a private house with solar panels will receive free energy. But you still have to spend money for various devices (controllers, inverters, batteries, etc.). It is also necessary to dispose of used or faulty devices correctly. Only a few companies do this.
Moreover, the panels must be cleaned of snow, dirt and even dust. The latter can reduce efficiency by 8%. The panels should be cleaned at least once every 3 months. It is also necessary to monitor the health of the structures and repair if necessary.
The main disadvantage - high cost and installation of panels. If you put everything from scratch (electricity and heating), you will have to pay from 300-400 thousand. rub.
Do you think the panels will get the most out of summer? They get very hot on hot days and this reduces their performance.
The batteries are inactive at night. Problems arise with the refrigerator. On cloudy days, efficiency is minimal or not at all. The maximum efficiency will be only if the right angle of incidence of sunlight on the roof with panels is carried out. Moreover, the efficiency of the panels decreases with time.
Why is it profitable to install solar panels in Germany?
It makes no sense to install solar panels in Russia yet. What can not be said about the EU countries.
For example, in Germany electricity from the sun becomes more and more popular and cheaper every year. Germany is the leader in the number of this technology. Such energy from the sun is much cheaper from them. The payback period for panels in Germany is 4-6 years. Even the sheds have solar panels.
Fact: in some foreign countries, people earn (sell) on surplus electricity. And in our country it is not available by installing solar panels.
In Russia, electricity is still cheap (8 times lower than in Germany). We pay just a penny a month - 350 rubles. My friend in Germany pays 85 euros per month for electricity (3 people, 3 rooms. apartment). Therefore, solar panels in our country will be a rarity for a long time.