When is a photovoltaic system worthwhile?
Created: 03/11/2022 11:54 am
By: Janine Napirca
Under certain circumstances, a photovoltaic system is worthwhile (symbol image).
© Fritsch/Imago
Do you want to install a photovoltaic system on the roof of your house?
In these cases, it really pays off to produce solar power yourself.
A photovoltaic system converts
sunlight into electrical energy, i.e.
solar power
, using solar cells
.
According to Stiftung Warentest, there are a few things to consider so that the conversion of light energy is also financially worthwhile.
You can find out here how self-produced solar power affects your wallet.
Is photovoltaic the same as a solar system?
In general, photovoltaics is understood to be the same as
solar systems
.
Not to be confused with
solar thermal
systems, because solar systems or photovoltaic systems consist of solar modules that
convert solar energy into
electrical energy .
On the other hand, solar thermal means the conversion of solar energy by thermal solar systems into usable
thermal energy
, i.e. for heating.
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When is a photovoltaic system worthwhile?
According to the report, a photovoltaic system is
particularly worthwhile if you have a
high energy requirement
and
consume the solar power yourself .
Because there is no longer a high return from full feed-in.
According to Stiftung Warentest, you currently get
just under 7 cents per kilowatt hour
of solar power that you feed into the public grid.
That's about 30 percent less than two years ago.
In addition, the prices for photovoltaic systems have risen.
Also interesting
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Even if you can no longer cover the costs of your photovoltaic system by feeding it into the public grid alone - switching to solar energy can still be worthwhile.
Because of the
currently increased energy and electricity prices, it is becoming more and more attractive to be independent in the energy supply
and to use the electricity you produce yourself.
Whether for washing, cooking or charging the e-car - according to Stiftung Warentest, you can drive cheaper with self-produced solar power than if you have to buy the electricity from expensive providers.
However, you should make a
thorough calculation
before you buy a photovoltaic system.
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Does a photovoltaic system with storage make sense?
With the help of
rechargeable batteries
, the solar power that is fed in during the day but not consumed is stored for the night.
According to the report, however, the acquisition costs of a storage unit for the photovoltaic system generally exceed the benefits.
On the other hand, if you can get cheap storage that's tailored to your household's power consumption, you can recoup the cost of the purchase.
(jn) *Merkur.de is an offer from IPPEN.MEDIA.
