Peak shaving
A lot of energy is used at hotels during the night, at offices during the day on weekdays, and at department stores on weekends and holidays. Leveling energy usage through the utilization of differences in business hours contributes to energy conservation.
Area heat recovery
Many people come to shop at department stores and A/C is necessary throughout the year. At Abeno Harukas, the waste heat from A/C is used to supply hot water to the hotel rooms, etc. Energy optimization via heat exchange between areas contributes to energy conservation.