The course introduces the fundamentals of offshore power engineering, focusing on renewable energy sources and their integration into marine energy systems. Students learn about offshore wind power, marine hydro energy (wave, tidal, and current), solar energy applications, hydrogen as an energy carrier, and energy storage technologies. Emphasis is placed on transformation and transmission processes in complex ocean-engineering systems, including wind turbines, hydrogen production, fuel cells, and unconventional power systems. The course combines theoretical knowledge with case studies on offshore renewable energy technologies, highlighting both current applications and future developments.