Part B - Certificates and approval requirements 
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3 Site-specific design certificates 
3.1 Turbine 
As a rule, a type certificate shall be presented for the turbine provided. As an exceptional case, it is 
also possible to present another appropriate certificate for the turbine to be approved in the case of 
a pilot system or new development that has not yet had time to be type-certified. The purpose of the 
type certification as well as the exceptionally allowable other certification is to ensure expert testing 
and confirmation that the turbine type conforms to the basic standards and/or directives in terms of its 
design and documentation, and can be produced on this basis. Marine ambient conditions are to be 
considered in this regard. Offshore operation of the wind farm in accordance with the standard and/or 
directives shall be demonstrated for the type certification. 
This results in the following tasks for the type certification: 
• Design evaluation of the turbine type: 
Loading assumptions 
Management and safety concept 
Rotor blades including static or dynamic blade tests 
Machine 
Optionally tower (without substructure, however including connection of the tower to the sub 
structure and its properties, if necessary for evaluation of the other components, e.g. rigidity 
assumptions) 
Electrical systems and lightning protection 
Commissioning inspection for one of the first offshore wind turbines of the tested type 
• Implementation of the design requirements in production and installation: a one-off production in 
spection and tour of the production process ensures that the design requirements in terms of pro 
duction and installation defined in the implementation documents can be achieved in the production 
company. 
• QM system of the manufacturer of offshore wind farms: a valid certificate of quality management in 
accordance with ISO 9001 shall be presented. If this is not available, the quality management may 
be tested based on ISO 9001 in consultation with the certifier/registered inspector. 
• Prototype measurements 
The following measurements/tests shall be performed on one of the first prototypes (e.g. prototype 
on land): 
Load 
Performance curve 
Grid compatibility 
Noise 
System behaviour 
3.2 Support structure 
3.2.1 Site conditions and design basis 
First of all, the site conditions and their transfer to the design basis shall be presented and evaluated by the 
certifier/registered inspector. The design basis shall be evaluated as early as possible prior to commence 
ment of design considerations or preliminary considerations of the system design.