Ratio of the consumption of energy by the amount of consumption

Ratio of the consumption of energy by department category

Ratio of the floor space area of departments

1. Lights should be turned off where not required and the time lighting is used prior to business hours and after business hours should be reduced.
   
2. Turning on and off lights using a people detection sensor at such places as the corridors of back yards and locker rooms should be reviewed.
   
3. Use of daylight should be considered.
   
4. Reflectors or hoods should be attached to lighting fixtures.
   
5. Periodic cleaning of lighting fixtures should be undertaken.
   
6. Bright colors with a high reflection coefficient should be used for ceilings, walls and floors.
   
7. Highly efficient lighting fixtures (such as inverter lighting fixtures) should be adopted.
   
8. Highly efficient lighting fixtures with good reflection and permeability features should be adopted.
   
9. Fluorescent tubes should be replaced at periodic intervals.

While there is little difference in the lighting intensity at supermarkets and department stores, there is a large difference in the consumption of energy. It is believed that this difference is due to the difference in the proportion of use of incandescent bulbs

1. Lighting of showcases should be turned off outside of business hours.
2. Periodic cleaning of the condenser should be undertaken.
3. Short circuits should be avoided and the reduction in compression capability should be prevented with respect to the outside unit of freezers and refrigerators.
4. The air curtain type showcase that is capable of conservation of energy should be adopted.
   
5. Light fixtures in a showcase should be installed in one row.
   * Whether there is one row or there are two rows of lighting fixtures, the visual effect does not change much.
   
6. The multi-freezer and hot gas defrosting method should be adopted.
   
7. Freezers and refrigerators should be collected to one location to the extent possible in order to reduce the area of the wall.
   
8. Freezers should be separately categorized based on the freezing temperature range.
   
9. The off cycle defrosting method for open showcases in which the temperature is relatively high should be adopted.
   

Freezing and refrigerating load at the food department of department stores (kWh/m2) = 435 kWh/m2 per year. Freezing and refrigerating load at the food department of supermarkets (kWh/m2) = 504 kWh/m2 per year

Changes in the Room Temperature of the Point of Sales of Food: Summer