To enable to provide a simple system constitution, and enable to carry out electricity storage and heat storage efficiently.
In a method of electricity storage and heat storage wherein a storage battery A of electrolytic solution circulation type in which an electricity from an electricity supply system C is charged and discharged to an electricity demand system D has been installed between the electricity supply system C and the electricity demand system D, and is charged and discharged while the electrolytic solution 1 is circulated over its storage tank 2 and a battery cell 4, and wherein the heat storage is carried out by supplying heat to the electrolytic solution 1, while the storage tank 2 is exclusively used as the electricity storage tank at the time of charge and discharge, it is exclusively used as the heat storage tank at the time of heat storage.
SUMI NAOTO
TOKUDA NOBUYUKI
YAMADA NOZOMI
TAKENAKA KOMUTEN CO