COMPRESSED FLUID STORAGE POWER GENERATION DEVICE

This compressed fluid storage power generation device (10) is provided with: a compressor (11) having an electric motor (34) and compressor bodies (22, 24) for compressing a working fluid by being driven by the electric motor (34); a pressure accumulation tank (12) for storing the working fluid compressed by the compressor bodies; a power generator (13) having expanders (28, 32) which are driven by the working fluid supplied from the pressure accumulation tank (12) and a power generator body (35) which is driven by the expanders; high-temperature heat recovery units (23, 25) for recovering heat from the working fluid flowing from the compressor bodies into the pressure accumulation tank (12); high-temperature heating units (27, 31) for heating, by using the heat recovered by the high-temperature heat recovery units, the working fluid flowing from the pressure accumulation tank (12) into the expanders; a low-temperature heat recovery unit for recovering heat generated in a low-temperature heat generation section of the compressor (11) and/or power generator (13) into a low-temperature heat carrier; and low-temperature heating units (21, 26, 29) for heating the working fluid by means of heat exchange with the low-temperature heat carrier carrying the heat recovered by the low-temperature heat recovery unit. Thus, the power generation efficiency of the device (10) can be improved through the reuse of heat from low-temperature sources.