Cancellation solar system: When do I have my investment in it again?

von Kira Welling am 30.12.2021

Solar systems are only worthwhile after a certain time.How long it takes for you to have your money again cannot be said in concrete terms, since many factors play a role in the calculation.Efahrer.com explain to you how you can still find out whether and when a PV system pays off with you.We will show you the most important providers for solar systems in the video.

The so -called amortization period comprises the time it takes for the costs incurred in advance or.used resources were re -recorded.

Regardless of whether you decide on a solar system because of the environment or the expected profit, in both cases you only incur only costs.If you are primarily concerned with the environment, you have a clear advantage, because the good feeling of having done something for the environment, in contrast to the material profit, there is immediately.

From which time you do really good for the environment, you can be calculated relatively precisely using the energetic amortization.The energetic amortization is the time the solar system needs, all resources that had to be applied for their production "to" process "again.Only then does the solar system really work in the sense of environmental protection.The energetic amortization generally takes around five years in our regions.

Until they generate material profits with their photovoltaic system, they will have to be patient for more than five years.As a rule, this takes about ten years, which will certainly appear quite long at first.However, this impression is relativized again when you consider that a solar system has been in use for you around 25 to 30 years.

In contrast to the profit, a photovoltaic system immediately gives you a feeling of independence.For example, the batteries of various electric cars can be used as an intermediate memory for the electricity generated by the solar system, such as the Z.B.at the Sion of Sono is the case.You can then feed this current again in the household.In addition, solar modules are also installed at Sono, with the help of which you can drive up to 30 kilometers.

In our solar system purchase advice you will find all information and the most important providers in the overview: Buy solar systems: providers, advantages and disadvantages, costs, funding

Unsere Solaranlagen-KaufberatungDer große Solaranlagen Vergleich. Die besten Anbieter im Überblick.Jetzt informieren!Unsere Solaranlagen-KaufberatungDer große Solaranlagen Vergleich. Die besten Anbieter im Überblick.Jetzt informieren!

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Global radiation - the great unknown in the amortization period of a photovoltaic system

The amortization period of your photovoltaic system can be calculated - at least largely - in advance.So you know about the time before your investment your solar system really generates profits for you."Roughly" because factors also play into the calculation that - in contrast to the costs of the solar system - cannot be predicted 100 %.

The big, but ultimately all -decisive unknown in the calculation of the amortization period is the global radiation.It is the solar energy that affects an area in which the case of its solar panels.The more intensely the global radiation is with you, the greater the yield you generate with your photovoltaic system.The intensity of the global radiation does not depend incredibly on the proportion of diffuse radiation, which, in addition to direct radiation, also contributes to global radiation.In the case of diffuse radiation, the full solar power does not reach the photovoltaic system, but only part of it.The rest is lost, for example, through cloud formation, air pollution or reflection.

The second factor that can significantly reduce your yield is the so -called shading.In contrast to global radiation, however, they have largely influence this.If you create a shading analysis in advance, you will later avoid unpleasant surprises and unexpected loss of profit.When analyzing, it is important to take into account that the sun is deeper during the winter months, and for this reason the shadow formation can develop completely differently than in the summer months.

Another factor that affects the profit is the snow cast zone in which you live.However, this factor plays a not quite as decisive role, since the yield of the photovoltaic system in the winter months is only about 20 to 30 percent.

As you can see, you have to live with an unknown life in your amortization calculation.For the calculation, it is therefore used for estimated values, which result, for example, from the sunshine or snow loads of the past few years.

Bild: Pixabay/atimedia Amortisationszeit einer Solaranlage Welcher Solaranlagenanbieter ist Testsieger 2021?"Jetzt über dieEfahrer Testergebnisse informieren!“Welcher Solaranlagenanbieter ist Testsieger 2021?"Jetzt über dieEfahrer Testergebnisse informieren!“

With this simple formula you quickly calculate the amortization time of your photovoltaic system

The calculation of the amortization period of a solar system is not too complicated.The only thing you need, as with all calculations, the corresponding numbers.This includes the so -called investment costs.These are all costs that have arisen to install the photovoltaic system on your roof.Specifically, this includes, of course, the solar modules themselves, but also the costs for metal frames, instruction system, analysis and assembly costs as well as the fees for acceptance and the counter.If you have taken out a loan for the purchase of the photovoltaic system, you must also add the interest.

In addition to the investment costs, the running costs such as the electricity consumption of the photovoltaic system, maintenance, cleaning and insurance are added.While the investment costs are generated at some point and thus disappear completely, the running costs reduce the profit of the solar system a little during the entire term.

The expenses face the earnings that they achieve with their photovoltaic system.These are primarily the feed-in remuneration, the payment of which is guaranteed by the EEG law.How high this is, however, depends on how the electricity yield is and the global radiation already described plays a decisive role.With us, the annual global radiation is around 1.000 kilowatt hours per square meter.Depending on whether you live north or more in the sun -drenched south, global radiation varies by 100 to 200 kilowatt hours per square meter a year.

In addition, of course, factors such as the quality of the solar modules, the perfect location, installation of a supporting system, etc..An important role in the amortization period of your solar detail.

Any funding and depreciation also count on the income page.

Finally, if you divide the total sum of the acquisition costs due to the sum of the total income, you will receive the approximate amortization time of your photovoltaic system.As a rule, the amortization period of the photovoltaic system is between 10 and 15 years, depending on the individual requirements.

It is best to use your own green electricity yourself and load your electric car comfortably and inexpensively on the Wallbox.

Do you want more information?In our purchase advice article you will find everything you need to know about:

Buy solar systems: providers, advantages and disadvantages, costs, funding