The expert opinions prepared by our office describe complex technical matters precisely and concisely in such a way that they can also be understood by non-experts. The causes and impact of the matter examined are analysed expertly and also systematically described. Private expert opinions additionally propose remedies.
As the senior partner at our engineering office, Dirk Stahf possesses the necessary knowledge in the area of photovoltaics and has been accredited by TÜV Rheinland as a photovoltaics systems expert for a limited period of time. TÜV issues the following confirmation to the client: “Experts on photovoltaics (TÜV) are familiar with good engineering practice and are able to prepare reasoned opinions on facilities for the photovoltaic production of energy.
Assembly error compromises the reliability of the system
Twisted cable pipe
Assembly error compromises the safety of the system
Edge of the protective cable tubing too sharp
Faults in the system due to unprofessional assembly
Cable links are not durable, inappropriate or incompatible plug connections
Faults in the system due to premature aging
Premature degradation of the cell due to delamination
Components with sub-optimum dimensions
Incorrectly dimensioned cables generate heat, causing a loss of electrical performance
Components with sub-optimum dimensions
Insufficient mechanical reinforcement for cable ducts (strain from the weight of snow)
Damage caused by vandalism
Infiltration of the land and damage to a solar generator caused by vandalism
Damage caused by vandalism
A flying stone damages the hardened solar glass of a generator
Failure to observe construction requirements
Faulty DC cabling of solar generators
Failure to observe construction requirements
Inverters must be assembled on non-flammable foundations with sufficient air circulation (minimum clearances must be observed during assembly)
Assistance with acceptance testing
Yield measurements, performance monitoring, STC measurements
Assistance with acceptance testing
Inverter efficiency measurements may help to localise sources of reduced yields during the start-up and ensuing operating phase.
