03 / Proof of concept
Proof of concept
To prove the concept, SeaTwirl deployed its 30 kW prototype S1 off the coast of Lysekil, Sweden, in July 2015. S1 was connected to the grid and tested according to plan until it was decommissioned in November 2025, after more than ten years at sea.
04 / Ten years at sea
Ten years at sea
A small and ambitious team installed S1 on a limited budget. It is one of few floating wind projects to have been in the water for such a long period of time, and it withstood harsh weather conditions, with autumn and winter storms reaching hurricane wind speeds.
