What are the advantages of portable power stations?

A portable power station is a mechanical device that converts other forms of energy into electrical energy. Generally, the generator is used to convert the energy contained in various primary energy sources into mechanical energy, which is then converted into electrical energy by the generator, invented by the Frenchman Bixi in 1832, and sent to various places of electricity consumption through the transmission and distribution network. So do you know what the advantages of a portable power station are?