Design of marine cable installation for ocean current power plant in Toyopakeh Strait-Bali

Toyopakeh Strait is located near Nusa Penida Island in the Province of Bali. Practical potential energy of ocean currents at that location is up to 320 MW. Tidal amplitude reaches more than 2.6 meters and ocean currents reach 3.40 m/s during the full moon, with the time duration is between 10-14 hours per day. This research is part of an ocean currents power plant technical study with a purpose to design of the subsea cable installation from plant to land. The method is determining the dimensions of the cable, dimensions of the pipe protector, stability analysis, and cable laying analysis. With the power of 3 kW, and the distance to the land is 280 m, conductor dimensions required is 3×2.5 m² with 13 mm diameter of cable, while the pipe protector cable thickness is 2.77mm. Vertical stability protector pipe are 0.824 and the lateral stability are 0.373. From the results of these calculations can be assured that the pipes and cables meet the standards of stability.