NOVELTY - An energy converting system (10) comprises an array of thermoelectric devices (60) connected electrically in series between a first heat exchanger (15) in contact with a first surface and a second heat exchanger (20) in contact with a second surface opposite the first surface of the array. The first surface is a working surface of the array. The array of thermoelectric devices is capable of generating a direct current (70) while a temperature gradient between the first and second surfaces is applied, and of providing a thermal energy to a fluid at the working surface.    USE - For converting energy between two or three different modes.    ADVANTAGE - The energy converting system is capable of directly converting between the thermal energy (heat rejected or absorbed) and the electrical energy (electricity) as part of an integrated cooling, heating and power system where waste heat and electrical power are abundant and accessible. The system applies the thermal gradient to the array of thermoelectric devices to generate a voltage across the thermoelectric elements. The system creates cooling at one surface of the thermoelectric devices, and creates heating at another surface of the thermoelectric devices opposite the cool surface when a DC voltage is applied across the array of thermoelectric devices.    DETAILED DESCRIPTION - The array of thermoelectric devices comprises pairs or junctions (65) of alternating polarity semiconductor material that are each connected by an electrical contact (62). A first substrate covers the first surface of the array. A different second substrate covers the second surface of the array. The first substrate is the working surface. The first heat exchanger that interfaces with the first substrate transports a hot fluid. The second heat exchanger that interfaces with the second substrate transmits a cold fluid. The direct current (DC) that is applied to the thermoelectric devices produces a temperature at the first surface of the array that is opposite in magnitude to a temperature at the second surface of the array. The first surface of the array releases or absorbs heat. The second surface of the array absorbs or releases heat. The DC that is created across the array of junctions is inverted to alternating current (AC) in an AC converter. The thermal energy is waste cooling or waste heating.    DESCRIPTION OF DRAWING(S) - The figure illustrates the energy converting system configured for a power generation mode.    Energy converting system (10)    First heat exchanger (15)    Second heat exchanger (20)    Thermoelectric devices (60)    Electrical contact (62)    First surface (63)    Junctions (65)    First substrate (66)    Direct current (70)