An electrical generation system is disclosed. The electrical generation system includes a motor coupled to a permanent magnet generator and a liquid pump coupled to a liquid source to provide a pressurized stream of liquid that impinges upon a water turbine that is coupled to a second generator. An initial power supply provides the power to start operation after which output from the generators is used to power the motors and liquid pump to sustain operation. Power from the generators is rectified and then converted back to alternating current by a power inverter.

Specific operation is executable in a Rankine-cycle power-generating apparatus. In the Rankine-cycle power-generating apparatus, a) in the specific operation, the control device adjusts the degree of opening of the opening/closing device so that the direct-current electric power absorbed by the electric power absorber approaches first electric power, or b) in the specific operation, the degree of opening of the opening/closing device is increased to the predetermined intermediate degree of opening so that the direct-current electric power absorbed by the electric power absorber falls within a predetermined range.

A water driven electrical power generating system has a frame with a waterwheel carried within the frame in an upright manner having a plurality of water receiving elements for turning the waterwheel. A water discharge manifold is used to discharge water from a discharge end in alignment with the water receiving elements. A water collection reservoir disposed below the waterwheel for the collection of water which has been discharged from the manifold and received by the water receiving elements. A water pump is used to pump water from the reservoir through the water discharge manifold. The waterwheel has side plates with outwardly extending axle shafts which are used to drive an electrical generator as the wheel rotates.

A tower-based power generation method and device, generally including two buckets that are movable up and down alternately to carry water to an upper location to allow water to rush down to impact and drive power generation units to generate electrical power thereby achieving circulative power generation. The two buckets are mounted to a tower frame and are driven by a drive unit to move. The tower frame has a bottom in which a water storage trough is formed. Rotary mechanisms are arranged above the water storage trough and the rotary mechanisms are coupled to power generation units. Two sides of the tower frame are each provided with a water storage tank. The water storage tank has a bottom from which a pipe extends to a location above the respective rotary mechanism.

A water pressure power-generating system includes a hydroelectric generator, a rotatable feeder, and at least two drain units all provided underwater. The drain units are disposed around the hydroelectric generator. Each drain unit includes a water catchment and a compression cylinder. The distance between the catchment and water surface is less than the distance between the compression cylinder and the water surface. The system further includes a gas compressor which can be connected with the compression cylinder through a pipeline. The rotatable feeder is provided with a first connection port for connection with the water outlet of the hydroelectric generator, and a second connection port for connection with the water inlet pipe of the water catchment. The first connection port is connected with the second connection port. When the system is provided in deep water, water pressure can be utilized to generate electricity.