Fabrication has started on high-voltage alternating current (HVAC) modules for Belgium’s Princess Elisabeth offshore energy hub, marking a significant step forward in the development of what will be the world’s first artificial energy island.
The milestone was marked by a steel-cutting ceremony at HSM Offshore Energy’s yard in Schiedam, where the modules—comprising substations and a facility unit—are being constructed. The infrastructure will form the backbone of the island’s AC transmission system and is designed to deliver at least 2.1 gigawatts of offshore wind power to the Belgian mainland.
The modules are being built by the HSI Pemac consortium, which includes HSM Offshore Energy, Smulders and IV, under an engineering, procurement, construction, installation and commissioning (EPCIC) contract awarded by Belgian transmission system operator Elia.
“This first steel cut is more than the start of fabrication — it is a tangible sign that one of the most strategic energy projects in Europe is moving from plan to reality,” said Hans Leerdam, commercial director at HSM Offshore Energy.
Engineering and detailed 3D modelling are ongoing at IV’s offices in Papendrecht, with prefabrication underway at Smulders’ Belgian sites and HSM’s Schiedam facility. Final assembly will be carried out at both Schiedam and Vlissingen.
Located 45 kilometres off the Belgian coast in the Princess Elisabeth Zone, the artificial island will initially connect two offshore wind farms and integrate their output into the national grid. The project is expected to enhance Belgium’s long-term electricity supply and contribute to broader European energy transition goals.
Frederic Dunon, CEO of Elia Transmission Belgium, said the start of HVAC fabrication signals steady progress. “The Belgian government’s recent decision to develop an alternative approach for the HVDC components will ensure we can maintain the strategic ambition of the project in a more cost-effective way,” he said.
