A wave energy converter has a shell, a pendulum pivotally positioned in the shell, a pump linked to the pendulum and operable by a movement of the pendulum so as to pump a hydraulic fluid outwardly therefrom, a motor interconnected to the pump such that the hydraulic fluid from the pump causes a rotation of the motor, and an electrical generator connected to the motor such that the rotation of the motor causes the electrical generator to produce electrical energy. A pendulum adjuster can be operatively connected to the pendulum so as to change a center of gravity of the pendulum.