A solar system has many significant benefits – one
of them is a low maintenance effort.

Nevertheless, it is necessary to check the
functionality of all components of the system at
regular intervals.

This is the only way to ensure that your solar system
achieves the maximum energy yield you’re looking for.

In short:
The most important
things at a glance

  • Professional maintenance and inspection of a
    solar system should be carried out every three
    years at the latest.
  • Even the smallest deficiencies can lead to a
    major loss of yield.
  • With a maintenance contract, the system can be
    serviced at regular intervals.

Why is maintenance so important?

For a solar system to function in a yield-optimised manner, all of its components must be free
of defects of any kind.

Solar modules

When maintaining the solar modules, the focus is on checking for damage, such as that caused by a hailstorm. Moisture can penetrate the inside of the module through the smallest cracks and damage it. In general, however, the maintenance effort for modules is quite low.

Mounting system

The mounting system ensures the cohesion of the solar system itself (for example on the roof). Therefore, regular inspection of the system is of great importance, as components can become detached from the mounting system inappropriate weather conditions, which puts the functionality of the entire system at risk.​


Solar systems are fitted with particularly hard-wearing cables for outdoor use. Nevertheless, adverse weather conditions can overstress them – cable sheaths or connectors can deteriorate over time, which can become a source of danger


The inverter requires a somewhat more intensive maintenance procedure. Therefore, when visually inspecting the solar system, pay attention to the plug connections on the inverter. A software update may also be necessary from time to time.

Solar power storage

Does your system have an electricity storage unit? Then this should also be maintained – even though lead-gel batteries and lithium-ion batteries are not particularly maintenance-intensive. In this way, contamination and defects in this area, for example, are quickly detected. In contrast, lead-acid batteries require more intensive maintenance and must be repeatedly filled with distilled water.


The meter of your solar system indicates the amount of electricity that is fed into the grid. For this reason, continuous calibration is necessary so that, for example, the feed-in rate can be optimally determined. However, if the meter still belongs to the network operator, the maintenance and calibration of the meter is their responsibility. As the system owner, however, you should constantly have an eye on the meter reading.

Lightning protection checks

​Lightning protection checks are among the most important maintenance tasks. This is the only way to prevent long-term damage. As your personal specialist company, we do not only check the surge arrester, but also the counter- and distribution box reliably for you.