PROBLEM TO BE SOLVED: To provide an LP gas power generation system capable of securing safety even when an LP gas power generator is used in a general home or the like when a disaster has occurred.SOLUTION: A low pressure LP gas power generation system comprises: LP gas supply equipment 1 supplying LP gas discharged from an LP gas container to a gas water heater 11 or the like via gas piping 5; and a storage box 3 stored by connecting a dedicated gas cord 33 to a gas cock 9 connected to branched gas piping 8 branched from the gas piping 5 via a thread coupling 34. The dedicated gas cord 33 is drawn out from the storage box 3 and a quick coupling 35 at the other end is mounted to a connector 40 of an LP gas power generator 4. Power generation output of the LP gas power generator 4 can be connected to at least a control power supply of the water heater 11 and a power supply of a water supply pump 13 by electric wiring 42 having a receptacle 41. A thread of the gas cock 9 into which the thread coupling 34 of the dedicated gas cord 33 is inserted is formed of a thread having a pitch different from those of other gas cocks of LP gas.
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