Protection Study for Danish Submarine power cables

Description

Following a decision in the Danish Parliament June 2020 Denmark is on the path to establish off-shore energy infrastructure in the Danish North Sea and in the Danish Baltic Sea to connect offshore wind energy to the Danish mainland and to neighbouring countries via offshore energy hubs, called Energy islands. The current tender concern consultancy services regarding external threat and risk assessment as well as assessment of sufficient cable burial depths for the two Energy Islands’ expected subsea cable routes. Lot 1: Zealand to Energy Island Bornholm The work for LOT 1 to be carried is subdivided into the following work packages: 1. WORK PACKAGE A (WPA) – Preliminary threat and risk assessment: The Con-sultant provides an analysis of threats and an assessment of the related risks in relation to the integrity of the subsea cable’s life-time operation. Furthermore, the Consultant provides a preliminary assessment of sufficient burial depths taking into account the de-scribed threats and their impact along the cable route. 2. WORK PACKAGE B (WPB) – Revised threat and risk assessment: Consultant to update the above risk assessment with actual geophysical and geotechnical data collect-ed along the cable route. The assessment to include a final assessment of sufficient buri-al depths along the route taking a risk based approach. 3. WORK PACKAGE C (WPC) – OPTION - Assessment of cable installation methods (BAS): Consultant to assist with the production of a Burial Assessment Study to be used as a baseline against the Contractor delivered BAS. 4. WORK PACKAGE D (WPD) - OPTION – Client’s engineer, cable tender phase. Consultant to provide engineering consultancy during procurement of the cable installa-tion Contractor. 5. WORK PACKAGE E (WPE) – OPTION - Client’s engineer, cable installation phase. Consultant to provide engineering consultancy during the cable installation phase. Lot 2: Jutland to Energy Island North Sea The work for LOT 2 to be carried is subdivided into the following work packages: 1. WORK PACKAGE A (WPA) – Preliminary threat and risk assessment: The Consultant provides an analysis of threats and an assessment of the related risks in relation to the integrity of the subsea cable’s life-time operation. Furthermore, the Consultant provides a preliminary assessment of sufficient burial depths taking into account the described threats and their impact along the cable route. 2. WORK PACKAGE B (WPB) – Revised threat and risk assessment: Consultant to update the above risk assessment with actual geophysical and geotechnical data collected along the cable route. The assessment to include a final assessment of sufficient burial depths along the route taking a risk based approach. 3. WORK PACKAGE C (WPC) – OPTION - Assessment of cable installation methods (BAS): Consultant to assist with the production of a Burial Assessment Study to be used as a baseline against the Contractor delivered BAS. 4. WORK PACKAGE D (WPD) - OPTION – Client’s engineer, cable tender phase. Consultant to provide engineering consultancy during procurement of the cable installation Contractor. 5. WORK PACKAGE E (WPE) – OPTION - Client’s engineer, cable installation phase. Consultant to provide engineering consultancy during the cable installation phase.