Planned for a site in the Skagerrak off the west coast of Sweden, it could provide 9-12 TWh annually.
Aside from the 30MW asset in Lake Vänern, Sweden currently hosts just 162MW of wind capacity in its waters.
But with 1,867km of coastline, it is well placed to benefit from the further development of offshore wind power and a number of large-scale projects are planned.
Magnus Hallman, CEO at Freja Offshore, said floating projects in particular provided “an opportunity for Sweden to establish itself as a pioneer in the field.”
Mareld’s proposed site lies around 40km west of Orust, sufficiently far from shore to make it barely visible from land.
It could also meet more than half of the electricity consumption of the import-dependent Västra Götaland, Sweden’s second most populous county and home of its second city, Gothenburg.
Hexicon’s CEO, Marcus Thor, said Mareld had “great potential and will be able to reduce the west coast region's dependence on imported electricity while supporting the region's industrial ambitions.”
Subject to permitting, it is hoped that power could be delivered from 2027 or 2028.
The Swedish Government will now consider the application and seek input from the relevant authorities.