Research & Development
Projet
Innovative and cost-effective offshore substations for offshore renewable energy by 2025
Usually, offshore wind farms are connected to the land grid via offshore substations using regular bottom fixed structures. This technology would connect 62% of France’s potential. The remaining 38% represent a technical challenge. Floating offshore wind farms are installed in deeper waters that are too costly for bottom fixed substations.
A floating solution could be more relevant, in parallel with the development of dynamic cables supporting higher voltage levels than existing solutions. The latter are necessary for connection to turbines and to the network. The subsea substation also represents a plausible industrial alternative that has not yet been considered for high voltage connection.
LISORE has investigated innovative solutions for electrical substation of offshore wind farms, anticipating the future of offshore renewable energy in deep waters, far from shore. The conducted work was set as a reliable methodology to study the reliability of the substation as a system, unifying electrical and naval structural disciplines. Pre-sizing of different concepts has been performed, and the corresponding total cost of ownership was calculated, including installation, maintenance and downtime costs. MOSISS which was launched following LISORE focuses on the modelling of the monitoring and maintenance strategies in reliability calculations, in order to optimize the maintenance of floating offshore substations.
This project was led by France Energies Marines and RTE.
This project received French State funding managed by the National Research Agency under the Investments for the Future Programme (ANR-10-IEED-0006-31).
This project was certified by the maritime cluster Pôle Mer Méditerranée.
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