5th Asia Offshore Wind Day Challenges and lessons learned from a North Sea nearshore project – a developer perspective Hans-Christoph Brumberg Tokyo, 24.01.2019 Asia - Nearshore Taiwan Korea Yunlin / Tainan / Kaohsiung Jeollabuk / Jeollanam Japan Tohoku Agenda • Introduction wpd Group • Introduction North Sea nearshore wind farm Nordergründe • Challenges during Execution • Conclusion and Lessons learned wpd Group Overview wpd Group Global Project Developer & Independent, multi-brand O&M Independent Renewable Power Leading wind farm operator provider for wind turbines Producer (IRPP) • 4,400 MW (2,180 WTG) installed • 1,965 WTG/ 4,030 MW under • 3,258 turbines under contract • IRPP with 1,600 MW own TCMA • 1,010 employees capacity • Technical 24/365 Management • 128 Offices & service stations • 608 employees • Commercial operations • Multi-brand strategy (incl. Vestas, • 32 Offices in 18 countries • 365 employees Siemens, Nordex, Senvion, • Onshore, Offshore, PV • 10 offices in 7 countries Gamesa, Fuhrländer, etc.) • Pipelines of 10 GW+ onshore • Multiple technologies • Services for On- and Offshore and 7 GW offshore • Broad variety of clients wind • A-Rating since 2003 wpd Group A Platform for Renewables Markets Worldwide Portfolio of Technologies Wind Onshore Wind Offshore PV wpd Group - offshore Facts wpd offshorewpd offshore Team more then 200 project team members, Project Project Logistics and Asset / combining the record of developing more development execution O&M services ownership then 20 offshore wind farms with the construction experience of 3 offshore wind projects 7 offices: Bremen, Rostock, Stockholm, Paris, Taipei, Tokyo and Seoul. Strategy • Development of a diversified international offshore-wind-farm-portfolio • Extensive expertise in project and construction management as well as logistics and O&M services • Ownership and operation at later stage together with investment partners 6 wpd Group - offshore Project Development Sweden Taiwan Storgrundet (420 MW) Guanyin (360 MW) Finland Yunlin (640 MW) Suurhiekka (480 MW) Germany Baltic 1 (48,3 MW)* Butendiek (288 MW) Nordergründe (110,7 MW) Kaikas (581 MW) Gennaker (824 MW) France Courseulles (450 MW) Project stages (total output) Fécamp (498 MW) in operation (447 MW) Dunkerque (500 MW) approved and in the procurement process (1,948 MW) Oléron (500 MW) approved (1,481 MW) participation in tender process (1,000 MW) permission process (824 MW) * Sold – wpd was further involved in the construction management 7 Agenda • Introduction wpd Group • Introduction Nearshore Wind Farm Nordergründe Nearshore Wind Farm Nordergründe Project Profile & Location Within German 12 nm-zone SITE Distance to coast: 15 km Water depth: < 10.3 m Size: 111 MW Permitted: 2008 / 2011 Acquisition by wpd: 2013 Construction: 2016/2017 Technology: Senvion 6M Turbine, monopiles Constr. Mgmt.: wpd offshore solutions Op. Mgmt.: Deutsche Windtechnik Nordergründe Equity partners: 30% 40% 30% Nearshore Wind Farm Nordergründe Harbours & logistics – local supply chain An offshore wind farm with German / regional contractors Work package Contractor Turbine Foundations Internal Cabling Offshore Substation Installation Agenda • Introduction wpd Group • Introduction Nearshore Wind Farm Nordergründe • Challenges during Execution Challenges during Execution Permitting and approval process • Protection zones and marine traffic in coastal area • competing utilisation / fishery • under water and airborne noise Challenges during Execution Size, location and economies of scale (1/2) Challenges during Execution Size, location and economies of scale (2/2) Butendiek Amount WTG: 80 Amount Substation: 1 Area: 33 km² Nordergründe Amount WTG: 18 Amount Substation: 1 Area: 3.5 km² Challenges during Execution Morphodynamics and seabed (1/3) Nordergründe: Challenges resulting from shallow waters and morphodynamic changes • Detailed analyses of large-scale bathymetry during project development phase • See example for changing water depths 1982-2012 • Evaluation of effect on engineering in early project phase and additional surveys Challenges during Execution Morphodynamics and seabed (2/3) • Dredging campaign was required to provide sufficient water depth for installation • Regular monitoring of dynamic development after installation BathymetrieBathymetrie201403/201606/2016 Challenges during Execution Morphodynamics and seabed (3/3) • Continous monitoring of local scour and global mophodynamics – Multibeam Echo Sounding – High Resolution bathymetric survey • Installation of scour protection system after development of local scour 1. Pile Installation 2. Scour development 3. Installation Scour Protection Challenges during Execution Supply chain - OSS contractors insolvency (1/2) • Situation: • EPC-I contractor for OSS filed for insolvency in September 2016. • Design & construction of steel works on the OSS topside were only finished ~50% • wpd team evaluated pros & cons of several potential solutions to secure the necessary commitment by all stakeholders and to commission the wind. • A scenario analysis has been shared with investors, lenders and the Lenders Technical Advisor (LTA). The LTA required a regular Probabilistic Quantitative Cost Risk Assessment (QRA) based on a Monte Carlo Simulation. • All stakeholders agreed to proceed with construction of the OSS under the responsibility of wpd. Challenges during Execution Supply chain - OSS contractors insolvency (2/2) • Topside was installed on 2017/09/21, exactly within the time schedule which was setup in 11/2016. • Grid connection was established and first feed-in achieved only six weeks after installation. • 18th and last turbine was connected to the grid on 17th of December 2017. Nordergründe – challenges of a North Sea nearshore wind farm Conclusion and lessons learned: • Don’t think nearshore is the “easy” offshore • Think BIG! • Have experienced partners And finally get started….