Checking the system design often reveals errors in the wiring. If the design is incorrect, the system is not able to provide its maximum output. Such errors can usually be corrected quickly and easily.

Our technicians check the planning documents and work out the optimal design in the event of errors.

An increase in system performance can often be achieved simply by replacing old components with new ones. For solar modules and inverters, there are now often more effective devices than at the time of commissioning. In the event of defects, it usually makes sense to use a completely new product instead of an equivalent replacement device. New inverters, for example, can quickly recoup the additional costs thanks to higher efficiencies. Added to this is the advantage of a new guarantee. The same applies to modules, of course. Unfortunately, many module manufacturers have disappeared from the market and there are many products with quality defects. If new modules are used, there is also a new, usually better guarantee.

Photovoltaic systems that have been installed on roofs with lightning protection systems are often incorrectly set up in connection with the building lightning protection. In the worst case, the existing lightning protection is completely eliminated simply by the presence of a PV system. A lightning strike or overvoltage can cause considerable damage to buildings and people. We check and adapt the coordination of photovoltaic systems to the existing lightning protection systems. Appropriate solutions are developed and implemented in consultation with the responsible lightning protection specialists.