| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat supply system which is utilized for peak cut of power feeding quantity from an external power source 30 or the saving of fuel and light expenses by appropriately performing the power feeding to a heat source machine 1 from an auxiliary power source 40 while suppressing overdischarge of a storage battery 42 of the auxiliary power source 40 in the heat supply system such that power can be also fed from the auxiliary power source 40 in addition to the external power source 30 with respect to an electrically-driven auxiliary machine A of the heat source machine 1.SOLUTION: A power feeding mode switching control that switches a power feeding mode to a heat source machine 1 between a both power source power feeding mode for feeding power from both sides of an external power source 30 and an auxiliary power source 40 based on an operation state of the heat source machine 1 and an external power source power feeding mode for feeding power from only the external power source 30 is executed. In the power feeding mode switching control, when it is determined that a storage power amount of a storage battery 42 is less than a lower limit permissible value, the power feeding mode to the heat source machine 1 is set as the external power source power feeding mode and a power received from the external power source 30 is fed to the auxiliary power source 40 to charge the storage battery 42. |
