Johan Toftekær

Senior Engineer Vattenfall

Johan Frederik Toftekær is a Senior Engineer at Vattenfall, where he leads the development of in house tools for design, digital twin, and asset integrity of offshore wind turbine support structures. With a PhD in structural dynamics from the Technical University of Denmark, he brings deep expertise in structural damping, turbine reliability, and lifecycle performance. Johan’s work advances the practical implementation of digital twins to optimize turbine support structure design, monitor real time integrity, and extend lifetime of large scale offshore wind farms.

Offshore Foundations, Conference Day 1 | Tuesday, 25th August 2026

17:00 From Model-Based Reassessment to Governed, Data-Driven Lifetime Extension

• Moving from one-off engineering reassessments to an operational, data-driven lifetime extension strategy

• Building a governed sensor-to-screen Digital Twin: from monitoring systems and data quality assurance to decision-ready LTE products

• Virtual sensing, using tower accelerations to reconstruct structural response and fatigue hotspots across entire wind farms

• Practical, real-world examples, including ship impact, scour development, and operational curtailment

• Data-driven decision-making in daily operations and lifetime extension assessments

• Open discussion on data availability, transparency, data sharing, and pathways toward future research, codes, and standards

This deep dive presents Vattenfall’s transition from traditional, model-based lifetime reassessment toward a governed, fully data-driven approach to lifetime extension in offshore wind. Rather than treating monitoring and analysis as isolated exercises, the session demonstrates how a complete sensor-to-screen Digital Twin can be made operational at scale — linking monitoring systems, data quality control, structural modelling, virtual sensing, and LTE products into a single, transparent workflow.

Through concrete case examples from operating wind farms, participants will see how measured data is transformed into structural loads, fatigue damage, and integrity indicators that directly support data-driven operational and lifetime extension decisions. Particular, emphasis is placed on governance: how traceability, validation strategies, and clearly defined outputs are essential for trust, repeatability, and regulatory acceptance.

The session also opens a broader discussion on data sharing and collaboration. By making high-quality operational data available for research and joint initiatives, the industry can accelerate learning, improve methods, and support the development of future guidelines, codes, and standards. The format combines short technical walkthroughs with interactive discussion, inviting participants to reflect on their own data readiness, organizational challenges, and opportunities to move from promising concepts to practical, standardizable solutions.

Check out the incredible speaker line-up to see who will be joining Johan.

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IQPC Gesellschaft für Management Konferenzen mbH
Address: Rosenstrasse 2, 10178 Berlin, Germany
Tel: 49 30 52 001 534
E-mail: info@iqpc.de
Registered at: Amtsgericht Charlottenburg, HRB 76720
VAT-Number: DE210454451
Management: Torben Haagh, Richard A. Worden, Michael R. Worden

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Firmeninformationen entsprechend § 5 Telemediengesetz
IQPC Gesellschaft für Management Konferenzen mbH
Adresse: Rosenstrasse 2, 10178 Berlin, Germany
Telefonnummer: 030 52001534
Email Adresse: info@iqpc.de
Registereintragungen: Amtsgericht Charlottenburg HRB 76720
Umsatzsteuer- Indentifikationsnummer DE210454451
Geschäftsführung: Torben Haagh, Richard A. Worden, Michael R. Worden