Energy-saving renovation makes shopping malls taste sweet

LED lights, smart lighting, frequency conversion elevators... Energy-saving devices are being used more and more in supermarkets. Retailers such as Cuiwei Building, Modern Mall, Wal-Mart, and Carrefour have tasted energy-saving benefits through the renovation of existing stores. According to data from the China Chain Store & Franchise Association, the energy consumption of retail enterprises has been reduced by more than 20% after energy saving.

Switch to an LED light. Ms. Zhang entered the Wal-Mart Grand Suburbs Store at a rate of 150,000 degrees a year. She felt that the light was soft and she felt very comfortable. She looked up and found that the lamp consisted of a small white spot of light, bright but not dazzling.

“We switched to LED lighting and used a total of more than 1300 sets of LED lights. We can save 150,000 kWh of electricity a year, which is equivalent to 40 households a year's electricity consumption.” said Chen Shineng, general manager of Wal-Mart's regional operations, supermarket operations Electricity and water fees are one of the largest expenditures, so commercial enterprises that use energy-saving facilities are very motivated.

The energy-saving effect of LED lights is significant, and the initial investment is large, but in the long run, the money for this energy-saving reform is worth spending. At present, Wal-Mart's large suburban pavilions and Wangjing stores have all used LED lights. Wangjing Energy's flagship store has a return on investment of 2 to 3 years.

LED lights not only save power, but also 20% higher than grille lighting. Not only is the brightness high, its light source is also soft and not dazzling, and guests feel comfortable. Moreover, LED lamps have no UV radiation compared to grille lamps.

Interestingly, the salesperson standing under the lights for a long time feels that the passenger flow is no longer so hot. It turns out that the heat emitted by each LED lamp is only 30% of the grille lamp, which means that the room temperature in the mall can be 2 to 3 degrees Celsius lower than the grille lamp. This means that LED lights can also be "indirectly energy-efficient" for stores, and less air-conditioning can save money.

Freezer plus a door to save 15% energy consumption Carrefour Ma Jiabao fresh area, refrigerated cabinet is no longer open, but the installation of a glass door. Aunt Jiang looked at the goods through the glass door, then opened the door and took a bag of quick-frozen dumplings into the shopping cart and closed the freezer door.

"While the refrigerator is closed with everything, in the past, only the supermarket's freezer was open, and it was distressing to think about it," said Jiang.

Nowadays, not only Carrefour, but also many supermarkets such as Tesco and Wal-Mart have switched to freezers with doors. Carrefour staff introduced that they now use refrigerators or cabinets with glass-moving lids or glass doors. After the doors have been added to the freezer, it is equally convenient to pick up items, which can save energy consumption by 15% to 20%.

Inverter installed to save power 30% on Thursday, there are not many people in the contemporary mall, the escalator to "dormant" does not move, until the two girls slipped to the front, the escalator was slowly moving ... ...

"Less passenger flow from Monday to Friday, and the elevators will continue to operate as usual, not only will electricity increase the wear and tear." Senior elevator engineer Yan Liang said that when the inverter was installed on the elevator, it was normal operation, nobody stopped and the elevator was not driven. Power saving effect is obvious.

The modern mall has an area of ​​about 20,000 square meters. The mall has installed inverters on 20 escalators. When the passengers do not sleep or run at low speed, the diffuse reflection sensor will send a start signal to the elevator once the passenger flow changes. The escalator will then be stable. Accelerate to rated speed.

After the inverter is put into operation, the energy saving rate is estimated to be more than 30% on site, and electricity savings of several hundred thousand yuan can be saved for the mall in one year. Since 2008, the frequency conversion of elevators has been transformed into a total of 500,000 yuan, and the cost has been recovered.

Air conditioning transformation monthly electricity savings 600,000 "very cool, or shopping mall comfortable." Not the heat of the weather, Cuiwei Building does not have to open the refrigeration unit can also have a cool breeze blowing in, just spend the fan money will be able to enjoy the effect of air conditioning.

Zhang Yanshun, Assistant Minister of Property Management Department of Cuiwei Building, said that Cuiwei Building had conducted energy-saving reform of central air-conditioning in 2008 and installed an inverter in the air-conditioning fan room. When the outdoor temperature is lower than 30 degrees Celsius and the humidity is low, air-conditioning units can be used without cooling. , Every day can save electricity costs 20,000 yuan.

After the reform of the hot water boiler, the heating of the building in the winter does not need to open the air conditioner, and saves a heating fee.

In addition, they artificially control the air-conditioning temperature, adjust the air volume at any time, send fresh air, so that the room temperature in the summer not less than 26 degrees Celsius, the winter is not higher than 18 degrees Celsius. “The cost of reform is 400,000 yuan, and it takes 20 days to return to this.” Zhang Yanshun proudly stated that Cuiwei Building had tasted the sweetness from energy-saving reform.

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