Copenhagen Offshore Wind 2005 Design for reliability 1 Design for Reliability

In many cases future offshore projects will be not only larger than any existing projects, but also located further from the nearest harbour facilities and at greater water depths. As a result the technical and com-mercial risks related to reliability will be dramatically increased relative to the projects that form the ex-perience base of today. The paper presents the ARM (Availability, Reliability, Maintainability) model developed by Siemens Wind Power. The ARM model is used to quantify the risks and to highlight areas of design modifications required to minimise risks. Background data from existing offshore wind farms are presented. The methodology and conclusions of the ARM model are shown, and using the Siemens 3.6 MW wind turbine as example the implementation of the conclusions in real life is demonstrated