Question

where is the electricity used at home generated how does it teaches our houses​

Answer 1

the electricityis generated at thermal power plants and hydro power plant then distributed to us using cable wires

Answer 2

electricity used at our home is generated at power plant
by electromechanical generators, primarily driven by heat engines fueled by combustion or nuclear fission but also by other means such as the kinetic energy of flowing water and wind. Other energy sources include solar photovoltaics and geothermal power.