Recurring inspection of your wind turbines

As an expert in wind power, our focus is on assessing the stability and operational safety of the wind turbines. As members of the BWE's expert advisory board, we issue a test certificate agreed with the authorities in addition to the report.

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Commissioning reports are essentially an extended WKP report with ZOP (condition-oriented testing) of all installed components with a review of the contractual performance obligations. In addition, it is checked whether the technical equipment and documentation meet the requirements of the approval notice.

We have expertise in the following areas: rotor blade damage, bearing damage in the gearbox, main shaft, blade bearings, tower head bearings and azimuth drives as well as foundation and electrical infrastructure.

The first step is to inspect rotor blades for any damage using drone flights. If damage is visible, it can be repaired using rope technology or work platforms.

Based on the Real Estate Valuation Ordinance, we determine economic success and risk factors as a basis for a profitable investment.

Endoscopy can provide information about the condition of the wind turbines' gearboxes. The information is supported by oil samples.

Heat flow thermography can be used to identify structural defects in rotor blades. The blade surface is briefly heated so that a heat front diffuses into the interior of the blade. If it encounters a defect that conducts heat poorly, such as delamination or a defective bond, the surface above this defect cannot cool down as quickly and appears as a warmer area in the thermal image.

This report is often a prerequisite for the acceptance of the wind farm by the OEM and is also a defect report. It shows the owner the points that still need to be addressed and serves as the basis for withholding final payments or contractual deductions.

We offer the following services based on the "Principles for carrying out an assessment and review of the continued operation of onshore wind turbines (BPW):

• On the basis of the available documents, a statement is made about a possible continued operation period of the entire system (analytical part)
• An examination of the technical condition of the entire system with regard to possible continued operation (practical part)

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