Abstract: This invention discloses the efficient, non-polluting generation of electricity through the construction and use of an electric power generating system wherein electricity is generated by utilizing the powerful subsurface undercurrents present near an ocean shoreline. The undercurrent water is caused to cycle internally through a conical shell housing assembly constructed in an upwardly narrowing configuration to produce a nozzle effect within the shell housing. The nozzle effect generates a combined water and air power piston that alternates in a vertical direction within the shell assembly. In both the upward and downward cycles, the power piston impacts a fan blade component that causes the shaft of an electricity generating turbine to rotate and produce electricity.