BACKUP SYSTEM FOR SOLAR COGENERATION (SOLAR HEAT AND ELECTRICITY COMBINED SUPPLY) SYSTEM

摘要

PPROBLEM TO BE SOLVED: To solve a conventional problem that preparation of a backup system raises the cost of equipment and the running cost. PSOLUTION: As a backup device for a solar cogeneration system, a hot water generator (an electric water heater or a hot temperature heat pump system) having a hot water storage tank of a suitable size so as to have a sufficient heat-retaining capacity is communicated with a solar cogeneration hot water supplying device. The hot water generator is operated by inexpensive nighttime electric power, and the hot water is stored so that the hot water is supplied or is used as a heating heat source when the need arises. PCOPYRIGHT: (C)2003,JPO