Abstract: A sea-wave power generation plant including a turbine having an inlet opening and an outlet opening; a rig; and an axially extending pump unit. The stationary body is connected to the rig. The pump unit includes an axially extending stationary body, a diaphragm connected to the stationary body, and a pump chamber for a fluid. The pump chamber is at least partly defined by the diaphragm. The pump chamber is connected to the inlet opening of the turbine. The pump unit includes an axially extending movable body connected to the diaphragm. The movable body in the radial direction is arranged for reciprocating movement in relation to the stationary body to alternately compress and expand the pump chamber to pump the fluid to the turbine.