Save Electricity in Both High and Low Temperatures! Inverter Cold Storage Units’ Wide-Range Adaptation Saves Power in Extreme Environments

          Sister Li, a seafood wholesaler, operates a 200㎡ cold storage in a coastal city in southern China. When she used a fixed-frequency unit before, she always worried about the high-temperature days in summer: when the external temperature exceeded 35℃, the unit operated at full load but still struggled to maintain -18℃, and the monthly electricity bill soared to 15,000 yuan; in low-temperature winter, the unit started and stopped defrosting frequently, which not only consumed electricity but also caused large fluctuations in warehouse temperature, making frozen products prone to spoilage. After switching to an inverter cold storage unit, all these problems were solved—the summer electricity bill dropped to 9,000 yuan, and it remained around 8,000 yuan in winter.

           Another major energy-saving advantage of inverter cold storage units is the wide-range operation adaptation technology, which can operate stably in extreme environments from -20℃ to 43℃ while maintaining high efficiency and energy saving. In high-temperature summer environments, the inverter unit increases the compressor speed through intelligent speed regulation to enhance cooling capacity, and optimizes the heat dissipation system to avoid efficiency loss caused by high temperatures. Its cooling efficiency is 28% higher than that of fixed-frequency units. Even when the external temperature is 38℃, it can easily maintain -18℃ inside the warehouse, and the power consumption is 40% lower than that of fixed-frequency units.

           In low-temperature winter environments, the energy-saving advantage of inverter units is even more prominent. It adopts "on-demand defrosting" technology, which detects the frost thickness through sensors to accurately control the defrosting time and frequency, avoiding energy waste caused by "timed defrosting" of fixed-frequency units. Winter actual tests of Sister Li’s cold storage show that the inverter unit defrosts only 2 times a day, 15 minutes each time, while the fixed-frequency unit defrosts 4 times a day, 30 minutes each time. The defrosting link alone can save 1,200 kWh of electricity per month. In addition, during low winter loads, the inverter unit can maintain low-power continuous operation, avoiding the impact power consumption caused by frequent starts and stops of fixed-frequency units, further reducing energy consumption.

          For cold chain merchants in areas with extreme climates, traditional fixed-frequency units are "inadequate" in high temperatures and "wasteful" in low temperatures. The wide-range adaptation technology of inverter cold storage units can not only meet the cooling needs of harsh environments but also maintain stable energy-saving effects, with an annual comprehensive energy saving of more than 30%, making it a "reliable energy-saving choice" in extreme environments.