The Phase 1 evaluation results related to the qualification for each one of the floating substructure technologies under studies have been presented in Barcelona during the workshop hosted by IREC from 8-10 of March 2017. Such results have been obtained through the analysis performed using the evaluation tool developed within LIFES50+. The overall concept ranking is based on the multicriteria evaluation performed by the evaluation tool named “Floating Offshore Wind Assessment Tool (FOWAT)” including analysis of Levelised Cost of Energy (LCOE), Life Cycle Assessment (LCA) and Risk evaluation.