A system for converting kinetic power to hydraulic power, the system comprising:
- a piston housing and a piston displaceable within the piston housing, wherein the piston comprises a piston shaft extending outside the piston housing for activation of the piston, and the piston divides the piston housing into a first chamber and a second chamber, and
- a first pressure tank and/or a second pressure tank, wherein the first and/or second pressure tanks comprise a flexible membrane separating the first and/or second pressure tank into a primary side and a secondary side, wherein the first chamber and/or second chamber are hydraulicly connected, respectively, to the primary side of the first and/or second pressure tank, wherein the secondary side of the first pressure tank and/or the second pressure tank are in liquid connection to an inlet valve for intake of liquid and in liquid connection with an outlet valve,
- wherein the system further comprises
- a first liquid on the primary side and a different secondary liquid on the secondary side, wherein the secondary liquid is seawater or water or fresh water or groundwater or treated water or hydraulic oil,
- wherein the first pressure tank or the second pressure tank is positioned inside the first chamber or the second chamber of the piston housing.