| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve profitability in a cogeneration system provided with a thermoelectric co-supplying device, a heat consuming means that consumes the heat generated by the thermoelectric co-supplying device, and an operation controlling device that controls the operations. <P>SOLUTION: This cogeneration system is provided with a surplus power consuming operation mode in which surplus electric power is converted by an electric heater into heat to be consumed by a heat consuming means, and a surplus power selling operation mode in which surplus electric power is sold to an external power system, and is configured to obtain profitability evaluation values C1, C2 that show the profitability of the surplus power consuming operation mode and the surplus power selling operation mode, and to perform a profitability-first operation process of selecting and executing the operation mode that has more excellent profitability evaluation value of the two values C1, C2 of the surplus power consuming operation mode and the surplus power selling operation modes. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
