Mid-Depth Integrated Tidal Energy and HVDC Transmission System - Version 2.0

This paper presents Version 2.0 of the Mid-Depth Integrated Tidal Energy and HVDCTransmission System concept, substantially extending the original framework with three majortheoretical and technical contributions. First, a Magnetohydrodynamic (MHD) hybrid generation subsystem is proposed as a complementary energy extraction mechanism alongsidemechanical tidal turbines, exploiting the electrical conductivity of seawater moving through anapplied magnetic field to generate electricity without rotating components. Second, FractalGeometry and Scale-Free Network Theory are introduced as the formal theoretical foundationfor the current-aligned non-linear cable routing principle established in Version 1.0 —demonstrating that optimal flow path geometry repeats self-similarly across cosmic, oceanic,atmospheric, and biological scales, and that the cable routing methodology represents auniversal flow optimization principle rather than a site-specific engineering choice. Third, ChaosTheory and Strange Attractor dynamics are applied to justify the real-time AI computationalarchitecture required for buoyancy management and turbine positioning — showing that whilelarge-scale current patterns are stable and predictable, small-scale current thread positioningexhibits deterministic chaos requiring continuous intelligent adjustment. The paper additionallyexpands the candidate site analysis from two locations to six globally distributed high-currentstrait environments across four ocean basins.