The downsides of the solar system boom: Installed does not mean ready for operation – be careful with “turnkey systems” – creative image: Xpert.Digital
Solar systems in Germany: advantages, costs and unexpected challenges
Solar systems: Installation and its hidden pitfalls
The boom in solar systems in Germany is undeniably an important step towards a sustainable energy future. More and more households and companies are choosing to rely on solar energy in order to both protect the environment and reduce energy costs in the long term. But despite the numerous advantages that the use of solar systems brings with it, there are also some downsides that often only become visible after installation. In particular, the commissioning of the systems is often more complicated than expected. A central point here is the promise of many providers to deliver a “turnkey system” – a term that is often misunderstood in practice.
What does “turnkey system” mean?
The term “turnkey” suggests that a solar system is ready for use immediately after installation. In reality, however, this simply means that the system is physically installed. This does not necessarily mean that it is immediately connected to the network and ready for use. This is one of the biggest challenges for many customers: The installation of solar modules and inverters is quick and easy, but the crucial step - connecting to the power grid - is often not done.
Problems when commissioning solar systems
A common problem when commissioning solar systems is that many installation companies do not have the necessary qualifications or licenses to actually connect the system to the grid. This results in customers being left with an installed but not operational system. The main problems are examined in more detail below:
1. Installation without a master electrician
In Germany it is generally permitted to install a solar system without a master's degree. However, this does not mean that the system can be put into operation immediately. Connection to the public power grid may only be carried out by a qualified electrician who has the necessary certification. Without this acceptance by a specialist, the system remains unused - even if it was installed in a technically perfect manner.
This problem is particularly common with smaller installation companies that have the know-how to install solar modules but do not have a master electrician on their team. The result: customers have to find an electrician themselves who is willing to connect the network - which often turns out to be more difficult than expected.
2. Refusal of local electricians
Another obstacle arises from the fact that many local electricians refuse to accept or connect a solar system installed by a third party to the grid. The reason for this usually lies in liability issues and warranty claims. Electricians understandably do not want to be held responsible for a system whose installation they did not supervise. If problems later arise or defects are discovered, they could be held legally responsible.
These concerns mean that many electricians prefer to only connect systems that they have installed themselves. This means additional costs and delays for the customer, as they may have to wait several weeks or even months for a suitable professional.
3. Delays caused by network operators
Even if a qualified electrician has been found and is willing to complete the connection, further delays may still occur. The grid operator must release the system and ensure that the local power grid is able to absorb the additional feed-in power. However, in many regions of Germany the network operators are overloaded or the electricity network is not sufficiently developed.
These structural problems mean that many systems have to wait months for their approval - even though they would have been technically ready for use long ago. For the customer, this not only means frustration, but also financial losses: the expected savings from self-consumption of the electricity generated do not materialize.
Why local electricians often refuse
The refusal of local electricians has several reasons:
Liability and guarantee
As already mentioned, the issue of liability plays a central role. The person who connects a solar system to the grid also assumes a certain responsibility for its proper functioning. Even if the customer chooses not to make a warranty claim, electricians are legally obliged to ensure that the system complies with applicable standards.
Economic reasons
For many electrical companies, it is simply economically uninteresting to simply connect a third-party system. They often prefer to carry out the entire installation process - from building the modules to final commissioning - as this allows them to maximize their margins.
What can customers do?
In order to avoid or at least mitigate these problems, customers should take a few important steps in advance:
1. Early planning
It is crucial to ensure before installation begins that a qualified electrician is available and ready to accept the system and connect it to the grid. Ideally, this step should be clarified with the installer when the contract is signed.
2. Transparent communication
Clear agreements between the installer and the electrician are essential. Both parties should know exactly who is responsible for which tasks and when which steps need to be carried out. Open communication can prevent many misunderstandings and ensure that everyone involved is on the same page.
3. Alternative solutions
In some cases it may make sense to commission specialized service providers who focus exclusively on the acceptance and commissioning of solar systems. These companies often have the necessary expertise and certifications, allowing them to work faster and more efficiently than general electrical contractors.
In addition, there are now also providers of complete solutions for solar systems - from the first consultation to the final commissioning, including all necessary approvals and acceptances by the network operator.
Opportunities and challenges when installing solar systems
The development of solar systems in Germany undoubtedly offers enormous opportunities for a sustainable energy future. By using renewable energies, both private households and companies can significantly reduce their CO₂ footprint while saving energy costs in the long term.
Nevertheless, practice shows again and again: a successful installation alone is not enough - smooth commissioning of the system is also crucial. Without early planning and clear agreements between the installer and electrician, there is a risk of delays and additional costs.
Anyone who decides to buy a solar system should not just pay attention to the price or be blinded by promises such as “turnkey”. Rather, it is important to ensure that all necessary steps for commissioning are planned in good time - this is the only way to exploit the full potential of a solar power system.
Ultimately, one thing remains clear: the path to owning your own solar system may be associated with a few hurdles - but those who master these challenges or prevent them through careful planning will be able to benefit from the advantages in the long term.
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