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Report 2018-11-01T23:03:21+01:00

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.