Is demand control not a "universal energy-saving method"?
More facilities are introducing "demand control (peak cut)" as a measure to reduce basic electricity charges. However, demand control is fundamentally a "method to suppress power peaks" and should be considered separately from energy-saving measures that enhance the inherent efficiency of air conditioning units. In this article, we will explain the mechanism of demand control in air conditioning systems and the disadvantages to be aware of in practical operations. 1. Mechanism and Process of Air Conditioning Demand Control Demand control in air conditioning systems suppresses peak power through the following processes: 1. Detecting the rise in power peaks. 2. Activating demand control. 3. Temporarily forcing a reduction in cooling capacity. By suppressing the peak power value (kW) through this control, it is very effective as a measure against basic charges.
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2. Five Disadvantages to Be Aware of When Operating If demand control is implemented without planning, it may negatively impact comfort and the operational load of equipment. Temperature fluctuations: To forcibly suppress heating and cooling capacity, temperature changes that make the indoor environment feel "hot" or "cold" are likely to occur. Decrease in comfort: In offices, factories, and facilities, there may be complaints about temperature inconsistencies and the effectiveness of air conditioning. Power rebound due to reactive operation: After control is released, air conditioning units may operate at "high power" to approach the set temperature, which can lead to a return of peak power. Reduction in electricity consumption is not guaranteed: While it is effective for basic fee measures, the actual power consumption (kWh) of the equipment may not necessarily decrease significantly. Discrepancy in perception with the site: Users are likely to complain that "the air conditioning is not effective," so prior explanations of operations are essential.
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Demand control is an effective tool for "peak power management," but it alone does not complete energy savings for air conditioning systems. We provide advice on both the proper operation of demand control and physical energy-saving measures tailored to your site environment. Please feel free to contact us.
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AIP Corporation provides eco-friendly and comfortable solutions for social and living environments, focusing on air conditioning. 〇 Air Conditioning Business We handle the sales, installation, and maintenance of air conditioning equipment for new construction and renovation projects in stores, supermarkets, drugstores, hospitals, nursing facilities, hotels, buildings, factories, and residences, as well as for the replacement and upgrade of air conditioning units. 〇 Energy Conservation Business We propose plans to reduce energy costs for our customers' facilities through various methods such as equipment performance recovery devices, indoor control systems, and visualization, achieving reductions in running costs and CO2 emissions. 〇 Aqua Power Business We produce and sell a weakly acidic hypochlorous acid water solution called CELA. We offer suggestions on how to utilize CELA and provide support in terms of hygiene management. Additionally, we handle special purification materials and water purifiers.
