VolturnUS 70+ PATENTS | DEMONSTRATED | READY. | A Concrete Semi-Submersible Floating Wind Platform Produced with Proven Industrialized Concrete Construction Methods Vol·turn·us The Volturnus Hull design was inspired and built like an upside-down bridge. VolturnUS Partners TECHNOLOGY The University of Maine’s patented VolturnUS is a transformational floating concrete hull technology to harness offshore wind energy with