Apparatus for generating electricity from water flowing in a river

An Apparatus for generating electricity from water flowing in a river, which apparatus comprises:

• a stator;
• a rotor which is rotatable with respect to the stator in order to generate the electricity,
• and wherein:
• the rotor rotates about an axis which extends in a direction transversely across the rotor from a first side to a second side of the rotor;
• the rotor comprises a plurality of rotor blades which extend from the first side of the rotor;
• the rotor blades are such that each rotor blade has an inner end which is adjacent the first side of the rotor from which the rotor blade extends, and an outer end remote from the inner end;
• the inner end of the rotor blade is movably mounted with respect to the rotor such that the rotor blade is movable between a first position and second position:
• the first position is one in which the rotor blade extends away from the side of the rotor for being engaged by the water such as to cause the rotor to rotate to generate the electricity;
• the second position is one in which the rotor blade extends closer to the side of the rotor than when the rotor blade is in the first position;
• the second position is one in which debris which is in the water flowing in the river and which has become impacted against the rotor blade is able to be freed from the rotor blade by the water flowing in the river;
• and
• the rotor blade is movable from the first position to the second position to free the rotor blade from the debris, and the rotor blade is movable from the second position to the first position to enable the rotor blade to resume the first position for generating the electricity.