Submersible power plant having multiple turbines

Method for steering a submersible power plant (1), the submersible power plant (1) comprising a structure (2) and a vehicle (3) comprising at least one wing (4), the vehicle (3) being arranged to be secured to the structure (2) by means of at least one tether (5);

• the vehicle (3) being arranged to move in a predetermined trajectory by means of a fluid stream passing the wing (4), characterized in that the submersible power plant (1) comprises at least a first turbine (6), a second turbine (8) and a third turbine (10) being arranged to be attached to the wing (4) of the vehicle (3), where at least one of the first, second and third turbine (6, 8, 10) is attached to the vehicle (3) on a top surface (15) of the wing (4), where the first turbine (6) is connected to a first generator (12), the second turbine (8) is connected to a second generator (13), the third turbine (10) is connected to a third generator (14), where said first generator (12), second generator (13) and third generator (14) are arranged to be able to produce different counter-torques to the respective first, second and third turbines (12, 13, 14), whereupon the first turbine (6), the second turbine (8) and the third turbine (10) each rotates at different rotation speeds, wherein the method comprises
• applying a first counter-torque by the first generator (12) to the first turbine (6) to set a first rotation speed of the first turbine (6)
• applying a second counter-torque by the second generator (13) to the second turbine (8) to set a second rotation speed of the second turbine (8).
• applying a third counter-torque by the third generator (14) to the third turbine (10) to set a third rotation speed of the third turbine (10).