an assembly comprising at least one energy consuming device ; the at least one energy consuming device being mounted to a support ; at least one solar element for creating electric power from solar power ; at least one energy storage device for storing electricity generated by the solar element ; at least one wind vane or propeller - operatively associated with the support ; at least one energy converter for generating electric power from the wind ; and at least one shaft operatively connected to the at least one energy converter and the support . optionally , the energy converter comprises at least one motor which operates to rotate the support ; the at least one motor being operatively connected to the at least one battery for storing electric power therein .