Global Subsea Power Grid Market Size, Share, Analysis By Component (Subsea Cables, Transformers, Switchgear, Variable Speed Drives, Control Systems), By Application (Offshore Oil & Gas, Offshore Wind, Interconnectors, Marine Energy), By Power Architecture (AC, DC, Hybrid Systems), By Installation Depth (Shallow, Deep, Ultra-Deep), By End-User (O&G, Renewable Developers, Utilities) Region, Key Players – Dynamics, Offshore Wind Transmission Trends & Forecast 2026-2034