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Sustainable service logistics for offshore wind farms

NWO Call ‘Duurzame logistiek’Startbijeenkomst, Utrecht, January 21 2015

Prof. Dr. Ruud Teunter (RuG)Dr. Jasper Veldman (RuG)

{Prof. Dr. Iris Vis (RuG)}{Prof. Dr. Kees Jan Roodbergen (RuG)}

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Offshore wind farms

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Offshore wind farms: relevance› 13,9% of total EU electricity demand by 20301

Target Netherlands much more ambitious (Green Deal)› Cumulative investments 211,1 billion euros until 20302

› Annual reduction 315 Mt of CO2 emissions2

› 50.000 fte employment in The Netherlands by 20203

› Operations & maintenance (O&M) 25% of total cost1

› Service logistics typically 50% of O&M cost4

› 40% (O&M) cost decrease needed for profitable wind energy1

› Even for 2015 capacity (37.000MW5) and corresponding O&M cost, a 5% cost reduction amounts to 1 billion euros

› Smarter service logistics can help make this energy source truly sustainable

Sources: 1Topteam Energie (2012), 2EWEA (2011), 3http://www.nwea.nl/Werkgelegenheid, 4GL Garrad Hassan (2013), 5Bilgili et al. (2011)

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Port facilities4

Hotel Office space Cranes Warehouse Repair facility

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Spare parts Infield cables Export cables Turbine blades Turbine

components Spare turbines

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Transport

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Maintenance› Maintain windturbines› Maintain Offshore High Voltage Station› Maintain foundations› Maintain cables› Transport personnel and materials› Loading ships› Inspections

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Logistics Network8

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Challenges and sustainability goals addressed within 5 work packages

Challenges:• Lumpy service demand• Multi-material network

(spares, tools, consumables)• Coordination flows materials

and technicians (different transportation requirements)

• Coordination onshore and offshore flows

• Uncertainties (e.g. weather)• Coordination of return flows• Cooperation within and

across wind farms

Goals:• Improving availability• Reducing maintenance• Reducing waiting time• Reducing time spent offshore

(and onshore)• Reducing transportation

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Work packages• Buffer and repair facilities design; location decisions; kitting locations; transshipment locations

WP 1: Onshore and offshore network design

• Failure prediction; opportunistic CBM; multiple resource planning; joint service and resource planning

WP 2: Planning of offshore service policies

• Vehicle assignment, routing, timing; storage; kit completion

WP 3: Coordination of sustainable service logistics

• Performance-based contracting, cooperation in diads and triads, multiple wind farms, trust

WP 4: Collaboration and governance aspects

• Robustness, simulation; cross-chain control, implementation

WP 5: Integrated logistics operations

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Knowledge utilization› Societal and business relevance

Sustainable service logistics research contributes to targeted cost reductions (40% by 2020), reduced CO2 emissions, reduced risk for workers, economic growth

› Valorisation Continuous interaction with 12 external partners for

brainstorming, discussion, data gathering, model validation, implementation of solutions in business processes- Tool development and Implementation with partners ECN,

Oliveira, Eyewind › Dissemination

Dissemination through workshops, white papers, practical publications, lectures (e.g. Energy Academy Europe)- This will be done with the help of dissemination partners Dutch

Institute for World Class Maintenance and Energy Valley

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Research consortium12

Continuous interaction with 12 external partners

1 public partner 6 supply chain partners 3 valorization partners 2 dissemination partners

75.000 euro cash 182.000 euro in-kind