NOVELTY - A thermoelectric supply system includes an electric power system (1) and an electric power generating apparatus (6); an opening-closing apparatus (4) which switches the presence or absence of the electrical connection between the electric power generating apparatus and the electric power system; a power failure detection apparatus (3); an electrically powered equipment; a heat supply related apparatus (7); and three control apparatuses (C1-C3).    USE - A thermoelectric supply system.    ADVANTAGE - The system can supply heat with respect to a heat use is provided maintaining the demand-and-supply balance of electric power at the time of the power failure of an electric power system.    DETAILED DESCRIPTION - A thermoelectric supply system comprises:    (A) an electric power system (1) and an electric power generating apparatus (6);    (B) an opening-closing apparatus (4) which switches the presence or absence of the electrical connection between the electric power generating apparatus and the electric power system;    (C) a power failure detection apparatus (3) which detects the power failure of the electric power system;    (D) an electrically powered equipment for supplying the heat-source equipment which generates a heat and the heat which produced in the heat-source equipment;    (E) a heat supply related apparatus (7);    (F) a first control apparatus (C1) which controls operation of the opening-closing apparatus;    (G) a second control apparatus (C2) which controls movement of the electric power generating apparatus; and    (H) a third control apparatus (C3) which controls movement of the heat supply related apparatus.    DESCRIPTION OF DRAWING(S) - The drawing is a schematic diagram of the electric power supply system of the thermoelectric supply system (Drawing includes non-English language text).    Electric power system (1)    Power failure detection apparatus (3)    Opening-closing apparatus (4)    Electric power generating apparatus (6)    Heat supply related apparatus (7)    Three control apparatuses (C1-C3)