A Solar-Powered Cyclic-Water Powered System or composite machine comprising:

Solar panels for generating power from sunlight.
Pumps driven by power from said solar panels.
Tanks or reservoirs, upper and lower that store water or liquid.
Said pumps that move the water or liquid upward from lower level tanks or reservoir to the upper level tank or reservoir to be stored for later use. Both said tanks will hold an equal volume of water or liquid.
Channels, tubing or pipes thru which water or liquid flows.
Hydro turbines, thru which water or liquid will flow in a downward direction to generate electricity, after which water or liquid flows back to lower tank or reservoir to be reused again.
A solenoid valve that is used to start and stop the flow of water or liquid.
A switch that controls when said valve will open or close depending on voltage or power level of a battery to which it is connected.
A battery for storing electrical power, which in daylight hours would be charged directly from solar panels.
A battery charger to recharge the above mentioned battery.
Wiring, as indicated by positive and negative symbols and lines.

A pumping apparatus includes a container positioned over a left column and a right column that contains a first fluid, left and right intake valves that respectively connect the left and right columns to the container, left and right pumps respectively associated with the left and right columns, upper and lower connecting pipes that connect the left and right columns below the container, a plurality of gates positioned at entrances of the upper and lower connecting pipes in each of the left and right columns, a turbine positioned to be driven by fluid flowing through the upper and lower connecting pipes, and a third fluid disposed in the upper and lower connecting pipes, and the left column and a right column. The turbine generates electric power due to the flow of the third fluid through the left and right columns and the upper and lower connecting pipes.

A valve assembly for controlling the flow of a fluid therethrough includes an inlet for receiving a fluid, a cage in fluid connection with the inlet, and a plug. The cage includes a first portion including a first port arranged in a wall of the cage for allowing fluid flow therethrough in a first mode of operation, and a second portion including a second port arranged in a wall of the cage for allowing fluid flow therethrough in a second mode of operation. The second port is arranged to increase turbulation when the fluid flows through the second port in the second mode of operation relative to when the fluid flows through the first port in the first mode of operation. The plug is arranged to cooperate with, and be moveable relative to, the cage between the first and second modes of operation.