Patent ID: 7339284

Claim:
An apparatus for generating electrical power from tidal water movement, the apparatus comprising: at least one electrical turbine adapted to be driven by tidal water movement to generate a respective first electrical signal; at least one drive apparatus located remotely from the or each said turbine for receiving at least one said first electrical signal, controlling the speed of rotation of the or each said turbine to adjust the efficiency thereof, and outputting at least one second electrical signal to supply electrical power generated by the or each said turbine; at least one feedback apparatus for providing at least one first control signal for use in controlling the speed of rotation of the or each said turbine by at least one said drive apparatus to adjust the efficiency thereof; and at least one control apparatus for receiving at least one said second electrical signal and outputting at least one third electrical signal to supply electrical power generated by the or each said turbine, wherein at least one said control apparatus is adapted to control the frequency of at least one said third electrical signal, wherein at least one said feedback apparatus is adapted to apply at least one said first control signal responsive to the frequency of at least one said third electrical signal.