Table 2: 
Schematic representation of the time sequence for realisation of an offshore wind farm project 
Phase 
Measure 
Responsible for the project 
Certifier/ registered inspector 
Approval authority 
Development 
Clarification of details 
for the site 
Geotechnical survey in accordance with 
the BSH standard in its current version, 
ascertaining meteorological and ocea 
nographical parameters 
Test report and certificate of con- 
Planning with prelimi 
nary draft of the instal 
lation structure 
Ascertaining the effects depending 
on the planned offshore wind turbine, 
preparation of the design basis and the 
preliminary draft 
formity for the design basis 
Opinion on the preliminary draft 
Inspection by the BSH * 
1st release 
Call for tenders 
Compilation of the call for tenders docu 
ments and evaluation 
Design 
Basic design 
Calculation of definitive effects depend 
ing on the selected system, definition 
of the necessary certifications including 
procedure, basic design and associated 
calculations 
Test reports and certificate of con 
formity for the basic design 
Inspection by the BSH * 
2nd release (at least 1 year before 
installation of the systems) 
Implementation 
planning 
Undertaking of detailed calculations, 
preparation of implementation docu 
ments (drawings, specifications, etc.), 
preparation of a logistics and decommis 
sioning concept 
Test reports for loading assumptions, 
support structure, submarine cables, 
transformer substation, measuring 
mast, logistics and decommissioning 
concept, etc. 
Certificate of conformity for the site- 
specific design evaluation 
Inspection by the BSH * 
3rd release 
Implementa 
tion 
Production 
Manufacture of all components of the 
offshore wind farm on land 
Inspection reports and certificate of 
conformity for production monitoring 
Transport 
Land and sea transport from the produc 
tion site to the planned installation site 
Inspection reports and certificate of 
conformity for transport monitoring 
Installation 
Erection and installation of all elements 
of the offshore wind farm ** 
Inspection reports for erection and 
installation monitoring 
Commissioning 
Commissioning of all elements of the 
offshore wind farm 
Inspection reports for commissioning 
monitoring 
Application for operating permit 
Certificate of conformity for the in 
stallation and commissioning moni 
toring 
Project certificate 
Inspection by the BSH * 
operations release (with con 
straints if necessary) 
Operation 
Operation, mainte 
nance and monitoring 
Management of maintenance and repair, 
logs, reports and evaluations, with any 
necessary measures 
Recurrent tests, inspection reports 
and certificates of conformity 
Inspection by the BSH * 
upholding or temporary withdrawal 
of the operating permit 
Decommis 
sioning 
Decommissioning 
planning 
In good time before completion of the 
operating phase, undertaking calcula 
tions, preparing the implementation 
documents for the selected decommis 
sioning, updating the decommissioning 
conceptts 
Test report for the decommissioning 
plan 
Inspection by the BSH * 
approval (possibly with constraints) 
Undertaking the 
decommissioning 
Implementation of the planned measure 
with detailed checking and monitoring to 
accompany the decommissioning 
Inspection reports and certificate of 
conformity for the decommissioning 
Inspection by the BSH * declara 
tion of completion of the measure 
by the BSH 
** 
Inspection by the BSH, if necessary with the involvement of a specifically engaged assessor, 
i.e. offshore wind turbine, cabling within the wind farm, submarine cables, transformer substation and other elements