Modellers’ Exchange Workshop: Turning the tide – Optimising Europe’s Offshore Energy Future with Holistic Planning and Engagement

Keeping the momentum after publishing the first Offshore Network Development Plan (ONDP) in January 2024, this workshop brought together more than 20 experts from academia, industry, civil society and policymaking to explore and discuss the future of Europe's offshore renewable energy.

To meet decarbonisation targets, Europe needs to greatly accelerate renewable energy sources, which will be sited and implemented on land and on European seas. The offshore targets based shared by the EU Member States amount to 354 GW installed offshore capacities by 2050. This massive scale up of offshore renewables deployment requires an understanding of the infrastructure needs and how the system shall be designed to use available resources in an optimised way.

Addressing these needs and gaps, RGI organised another Modellers’ Exchange Workshop entitled “Turning the tide – Optimising Europe’s Offshore Energy Future with Holistic Planning and Engagement”.

Bringing different modelling and system planning experts together, the workshop aimed at facilitating a comprehensive understanding of the strategic identification of suitable offshore areas for energy infrastructure development. Throughout the agenda, discussions also sought to explore the different technological options for optimised offshore grid deployment, taking into account time constraints.

Promoting transparency and collaboration in data and modelling efforts to enhance decision-making processes, the sessions also addressed benefits and drawbacks of offshore and onshore hydrogen production to maximise efficiency and minimise environmental impact in the energy transition.

Based on the presented input, different solutions have been discussed among the workshop’s participants:

  • Enhancing modelling capabilities for future offshore network planning, including tools and techniques used to model offshore energy systems. Advanced modelling can help in understanding the dynamics of energy production, transmission, and consumption, facilitating better decision-making in planning future offshore networks.
  • Utilising visual tools to help stakeholders visualise potential locations for offshore infrastructure projects. Tools such as Geographic Information Systems (GIS) or interactive maps can aid in identifying suitable sites, assessing environmental impacts, and integrating offshore projects into existing maritime spatial plans.
  • Promoting cross-sectoral integration for optimisation. Coordinating activities across different sectors such as energy, transportation, and environment can maximise synergies and minimise conflicts.
  • Addressing spatial requirements and scarcity within planning processes. By conducting spatial analysis and considering scarcity factors, planners can identify optimal locations for infrastructure deployment and minimise resource constraints.

In the upcoming months, RGI will continue its involvement into the debates related to the European grid planning process, including offshore grid networks.

Participant organisations

  • 50Hertz
  • Agora Energiewende
  • Artelys
  • Copenhagen School of Energy Infrastructure
  • Center of the Study of Democracy (CSD)
  • Dutch Research Institute for Transition (DRIFT)
  • Technical University of Denmark (DTU)
  • Gasunie
  • Hitachi Energy
  • Open Energy Transition
  • Orsted
  • Reiner Lemoine Institute
  • Renewables Grid Initiative (RGI)
  • Scottish and Southern Electricity Network (SSEN) Transmission
  • TenneT
  • TransitionZero
  • TU Berlin
  • TU Delft
  • TU Dresden
  • Wind Europe



Registration and coffee


Welcome, agenda, objectives, setting scene

Session 1: Approaches to model the offshore energy


Keynote: European offshore network transmission infrastructure needs – the ONDP results

Francesco Celozzi, ENTSO-E


Modelling offshore grid systems

Sebastian Porras Aparicio, Hitachi Energy

Modelling offshore wind systems

Riccardo Longo, WindEurope




Coffee break

Session 2: Addressing spatial challenges of the offshore infrastructure


Planning the offshore energy infrastructure that supports the decarbonization of the European energy system. How can technologically and spatially explicit energy modeling contribute?

Jann Launer, TU-Delft


Form follows function? Dualism between maritime spatial planning and the future offshore grid

Felix Jakob Fliegner, TU Dresden, 50Hertz


The impact of spatial scale on offshore expansion in electricity system optimisation models

Dr. Martha Frysztacki, Open Energy Transition




Lunch break

Session 3: Enhancing optimisation via cross-sectoral integration


Offshore power and hydrogen networks for Europe’s North Sea

Philipp Glaum, TU Berlin

Going offshore or not: Where to generate hydrogen?

Matti Koivisto, DTU

TSO perspective on offshore cross-sectoral integration

Tobias Frohmajer, TenneT




Wrap up and outlook


Francesco Celozzi, ENTSO-E

Sebastian Porras Aparicio, Hitachi Energy

Riccardo Longo, WindEurope


Jann Launer, TU-Delft

Felix Jakob Fliegner, TU Dresden, 50Hertz


Dr. Martha Frysztacki, Open Energy Transition


Philipp Glaum, TU Berlin

Matti Koivisto, Technical University of Denmark (DTU)

Tobias Frohmajer, TenneT


Dr. Andrzej Ceglarz
Director - Energy Systems

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t: +49 30 233211014

Amanda Schibline
Manager - Socio-Energy Systems

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t: +49 30 2332 11022

Damiano Ottavi
Manager - Energy Systems

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t: +49 30 2332 11028

RGI gratefully acknowledges the EU LIFE funding support:

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Funded by the European Union. Views and opinions expressed are however those of the author(s) only and do not necessarily reflect those of the European Union or the LIFE Programme. Neither the European Union nor the granting authority can be held responsible for them.