OLAV OLSEN OFFSHORE WIND ++

Transcription

1 NORWEGIAN OFFSHORE WIND CLUSTER, SOLA OLAV OLSEN OFFSHORE WIND ++ Trond Landbø Manager Business Area Energy/Renewable Dr.techn.Olav Olsen AS Dr.techn.Olav Olsen AS

2 2 DR.TECHN. OLAV OLSEN COMPANY PROFILE > Independent structural and marine consulting company founded in 1962 > Situated at Lysaker (Oslo) and Trondheim, ~90 employees > Contributes in all project phases, from concept development to decommissioning > Participates regularly in research and development projects 2

3 3 DR.TECHN. OLAV OLSEN BUSINESS AREAS Buildings Offshore Oil & Gas Renewable energy Infrastructures Harbours and Industry Core business: Structural & Marine engineering OO «Futurum» Adding value to company and clients

4 4 OFFSHORE CONCRETE STRUCTURES > World leading designer of offshore concrete structures > Shallow to deep water > Gravity Base Structures (GBS) > Floating concrete platforms > Arctic applications

5 5 OLAV OLSEN - OFFSHORE WIND 5

6 6 OLAV OLSEN - CAPABILITIES OFFSHORE WIND > Fully coupled simulations: SIMA 3DFloat Deeplines (Orcaflex, Ashes, FEDEM Windpower) > Substructures Bottom fixed and floating Steel and concrete Concept development Design and analysis (ShellDesign) Geotechnics > Installation Method development > Cost models Fabrication and Installation Substructure Mooring Anchors > Third party verification > Mooring and anchors System configuration System design Geotechnics

7 OLAV OLSEN - CONCRETE FOUNDATIONS - GBS 7 7 Simple and robust For water depths up to 100 m + Inshore completion and testing Self floating, no offshore heavy lifting Firm or soft soil Optimal stiffness and dynamic characteristics Not fatigue sensitive Maintenance free Long design life, 100 years + Can support new turbines in the future Marine environment friendly No piling No anchors Not sensitive to boulders below seabed 7

8 Efficient Production Facilities Large Scale 8 Ultimate capacity: 100 units per year Workforce > 1000 Fabrication area onshore ~ 0.5 km2 Fabrication/storage area inshore 8

9 9 9 COOPERATION AGREEMENT WITH SEAWIND Seawind Ocean Technology B.V / Seawind Systems AS Strategic co-operation (non-exclusive): Development of bottom fixed WTGs Karmøy Demo demonstration of 6.2 MW 2-bladed WTG Olav Olsen GBS concrete substructure self floating installation Development of floating WTGs Future Seawind 7 MW and 10 MW 2-bladed WTGs OO Star Wind Floater concrete / Hybrid 9

10 OLAV OLSEN - SFT - SPACE FRAME TOWER 10 > A bottom fixed solution for Multi-MW Offshore Wind Turbines > Water depth range 15m-60m > Transition piece standardized for turbine and tower independent of site conditions > Standardized Design for variable water depths > Designed for mass production and efficient assembly > Variable bottom support solutions

11 11 SPACE FRAME TOWER (SFT) 11 >Foundation - different solutions Gravity base Suction buckets Piles >3 main element types: Vertical legs, constant diameter X and K nodes with uniform design. Cost effective fabrication, superior fatigue capacity. Uniform X-bracing system >Transition structures are standardized for turbine type Gravity/Skirt piles Gravity Base Piled foundation frame Suction buckets Pre installed piles

12 12 Node fabrication Hot forming with hydraulic press Welding two halves together to an X- node Splitting X-node into two K-nodes

13 NODE DESIGN 13 > A super overlapped node originally developed for mass production of leg nodes in Jack-Up platforms. > Used by Technip in the TPG 500 Jack-Up platform design uniform nodes > Used in 3 production platforms; BP Harding BP Shah Deniz - Totals Elgin Franklin > Fabricated by hot forming/forging in two (Croisont Loire) symmetric parts and automatically welded > Superior long term fatigue characteristics > Cost effective and simplified leg production

14 14 Proposed Fabrication scheme for SFT substructure Transition Piece Nodes Precut legs Precut braces Sub Contractor Fabrication Piles Possible Preassembly Reception and temporary storage Assembly and temporary storage Load out to transport barge Assembly Yard Installation of piles Installation on preinstalled piles

15 15 OLAV OLSEN - FLOATING OFFSHORE WIND Hywind Statoil HiPRWind EU project OO star Patented concept

16 16 HYWIND OO INVOLVEMENT > Olav Olsen assisted Norsk Hydro during development of Hywind demo, concrete substructure design and fabrication methods > 2010 & 2013 Concrete Hywind - Cost and fabrication study > 2012 Hywind Installation challenge Development of installation tools > 2014 Mooring Optimization study (pre-feed Hywind Scotland) > 2014 Mooring connection tool development > Hywind Scotland FEED and Detail Design, substructure and mooring (subcontract to Aibel): Detail design completed in the autumn of 2015 Follow-on phase on-going OO scope of work: Concept model Coupled simulations Mooring design Structural design of mooring connection console Stability of floater Design of various structural details ULS capacity check of tower Third Party Verification of foundations at Stord Base.

17 17 HYWIND SCOTLAND PROJECT > Demo park on the east coast of Scotland. > Progression from Hywind DEMO. > 5 units. > 6 MW turbines. > Construction start-up: Fall 2015 > Scheduled installation: Summer 2017

18 18 OO INSTALLER SPECIAL DESIGN FOR HYWIND INSTALLATIONS

19 19

20 20 THE OO-STAR WIND FLOATER HISTORY > Few realistic WTG floaters before 2010 > Hiprwind (2010) questions to scalability and fatigue > What does the optimal floater look like? > OO-Star Wind Floater developed 2010/11, presented at ONS2012 > Preferred concept (steel) for EU project Floatgen Acciona part 3 MW WTG > NFR project : Designed for 6MW (concrete), WD 100 m, North Sea > LIFES : Up-scaling to 10 MW (concrete), WD m, Hs= m

21 21 RCN PROJECT NO /E20 CONCRETE SUBSTRUCTURE FOR FLOATING WIND TURBINES Organization NFR/RCN Harald Rikheim Budget 9 MNOK Grants 4,5 MNOK Schedule Project Owner Olav Olsen Trond Landbø, Project Manager Dagfinn Sveen, Structural Design Håkon S. Andersen, Analyses John Meling, Senior Advisor Project Partner IFE Institute for Energy Technology Project Partner Acciona Infraestructuras S.A. Project Partner Statoil ASA Roy Stenbro, Contract Coordinator Tor Anders Nygaard, Technical Coordinator Rafael Castillo, Contract Coordinator Gunther Auer, Technical Coordinator Viviane Simonsen, Contract Coordinator Tor D. Hanson, Technical Coordinator

22 22 HORIZON LIFES 50+ > Horizon 2020 project, total budget 7.3 MEuro > Project lead by Sintef Ocean > Objective: Develop cost effective 10 MW Wind Floater

23 23 LIFES 50+ MODEL TESTS > Modell tests planned in Phase 2: Ocean Basin at SINTEF Ocean, November 2017 (Scale 1:36) Wind tunnel at Polimi, Spring 2018 (Scale 1:75) This project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement No

24 24 OFFSHORE WIND CHALLENGES > The main and overall challenge is to reduce cost of energy (LCOE) cannot rely on subsidies in the future > Requirements: > Consistent frame conditions (political, consenting, tendering process, environment etc.) > Development of consistent rules and regulations > Development of business tools (financing, insurance etc.) > Development of supplier industry (competition, effectivity, market stability) > Development of new and better technology Economy of scale, larger turbines Increase effectivity, robustness and operation life Reduce CAPEX, OPEX > Development of fabrication and installation methods (reduce CAPEX, risk)

25 25 OFFSHORE WIND CHALLENGES Source Carbon Trust 2015

26 26 IMPROVED TECHNOLOGY - SUBSTRUCTURES > Robust and cost effective design Not overdesign, but implement reserves to allow for unknowns Standardisation will reduce cost floaters have higher potential for this Integrated design WTGs, substructures and mooring (not suboptimize) Advanced design tools coupled analyses and non-linear material behaviour > Concrete can increase the operational life of substructure Long term thinking wrt. consenting and operability Other elements should also focus on increased operation life (WTGs, mooring, cables etc.) Develop a market for reuse of substructures, replacement of WTGs, 2 nd hand market for elements which can be reused.

27 27 FABRICATION METHODS

28 28 SUMMARY OFFSHORE WIND > Monopiles have potential for increased capacity. Alternative ways to accommodate larger waterdepths and soil conditions > Jacket structures becoming more popular, less steel than monopiles. > Use of concrete can increase the operational life of substructures > Difficult to standardize bottom fixed substructures monopiles and jackets have potential for standardization and industrialization > Reduced requirements to verticality would save significant costs related to bottom fixed substructures > Floating wind has larger energy potential than bottom fixed. Some areas the only way to go (typical split floating/fixed at m WD). > Floating wind higher potential for standardization. Efficient mass fabrication of substructure, simple assembly and installations without offshore heavy lift. Gives large potential for efficient supply chain and significant cost reductions > Potential for floating wind to outperform bottom fixed in the future > Norway needs a home market. Floating wind has a significant future potential also in Norway

29 29 DISCLAIMER & COPYRIGHT Disclaimer Dr.techn.Olav Olsen provides no warranty, expressed or implied, as to the accuracy, reliability or completeness of the presentation. and neither Dr.techn.Olav Olsen nor any of its directors or employees will have any liability to you or any other persons resulting from your use. Copyright Copyright of all published material including photographs, drawings and images in this presentation remains vested in Dr.techn.Olav Olsen and third party contributors as appropriate. Accordingly, neither the whole nor any part of this document shall be reproduced in any form nor used in any manner without prior permission and applicable acknowledgements. No trademark, copyright or other notice shall be altered or removed from any reproduction.