Stillstrom, Danish port exploring large-scale maritime electrification at Energy Island Bornholm

Stillstrom and Port of Roenne have teamed up on a study looking into integrating offshore wind energy with maritime electrification. Maersk’s offshore power and charging solutions developer and the Danish port have initiated a joint white paper to explore how Energy Island Bornholm could serve as a blueprint for this kind of integration.

The study, Energy Island Bornholm Powering Maritime Electrification, examines how renewable power production and future grid capacity can support charging solutions for electric ferries, cargo vessels and offshore service vessels, with an aim to help shipowners invest in battery-powered fleets and advance the decarbonisation of European transport beyond road electrification, according to Stillstrom.

In the white paper, set to be published in Q1 2026, Stillstrom and Port of Roenne plan to present a scalable roadmap for ports and offshore hubs preparing for the next wave of maritime electrification.

For Energy Island Bornholm, procurement of the transmission infrastructure is underway, while auctioning the planned 3 GW of offshore wind capacity to be connected to it is awaiting the Danish government’s