Device for generating electrical energy

) Conductor pieces of the successive thermocouples facing each other. According to the invention, the conductor pieces facing each other in the series arrangement are each electrically connected to one another and the second conductor pieces (1; 2) of the thermocouples alternately comprise one, with respect to the conductor material of the second and third conductor pieces (6, 6 '), thermoelectrically positive and thermoelectric or wherein the conductor pieces facing each other in the series arrangement are each electrically insulated from one another and the third conductor pieces are in each case electrically connected to the first conductor piece of the thermoelement following in the series arrangement.