NOVELTY - The method involves operating a turbine apparatus by a waxing and waning of tidal drift current through a primary tideway coupled with a primary basin during dynamic periods of oceanic tide flood and ebb. A continued operation of the turbine apparatus is maintained by a delayed regulator gate controlled influx and reflux of tidal drift energy channeled among a secondary tidal basin, turbine apparatus and an oceanic source (1-1) while the turbine apparatus drives a generator (100-1) that produces a constant level of electric power independent of the oceanic tidal current's diurnal phase.    USE - Method for generating hydroelectric power utilizing an oceanic source of tidal flood and ebb current energy in a hydroelectric power generation system (claimed) that is utilized for obtaining a constant level of turbine excitation throughout influx, reflux and two slack-water portions of a diurnal tide cycle.    ADVANTAGE - The method enables generation of hydroelectric power utilizing an oceanic source of tidal flood and ebb current energy in a hydroelectric power generation system in an effective manner. The method produces hydroelectric energy from tidal currents produced through a tideway by a naturally occurring tidal rise and fall. The method enables management of a diurnal cycle of tidal current so as to deliver a primary range of current drift and a sub sequentially delayed secondary range of current drift, thus maintaining a continuous output of the hydroelectric energy throughout a full diurnal tide cycle. The method enables compensation of the waning and waxing of the oceanic tidal currents through the primary tideway. The method enables dynamic measurement of the tidal drift rate through the primary tideway and determination of a proportional extent of an opening or closing of the regulator gate to modulate the tidal drift rate through secondary tideway to achieve constant summation of tidal drift energy channeled through both tideways and to drive the turbine apparatus. The method enables producing hydroelectric power during the inrush of tidal flooding and outflow of tidal ebbing combined with controllably delaying the dissipative usage of a portion of the available tidal energy in a proportionately metered manner to avail a continued tidal energy capability during periods of the oceanic source tide waning, waxing and slack. The method utilizes oceanic tide energy to unfailingly deliver a nearly constant source of hydroelectric power throughout the diurnal tide cycle. The method enables managing tidal inflow and outflow to match the cyclic variations in loading placed on hydroelectric generators.    DETAILED DESCRIPTION - AN INDEPENDENT CLAIM is also included for a hydroelectric power generation system, comprising a turbine apparatus.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic block diagram illustrating a method for generating hydroelectric power including a primary and secondary tidal basin configured to drive generators and deliver electric power.    Oceanic source (1-1)    Power transmitter (60-1)    Utile load (66-1)    Generators (100-1, 150-1)    High-tide level (108-1)