Real Results from ECOISM’s Cutting-Edge Solutions
Case Study
Discover how ECOISM’s cutting-edge energy solutions are delivering measurable results in data centers, retail stores, and industrial facilities worldwide.
Case Study 1: Office (IND)
Industry / Facility Overview
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Office (total floor area: 250 m2)
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Air-conditioning systems of 4HP are in operation. (DAIKIN RPZQ4AVM-HOME SERIES, 3 pipes)
Purpose of Introduction
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(Trial Installation for 3 pipes model effect by ESP)
Introductory Products
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ESP-1 no. (Trial Purpose)
Effects of introduction
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Average 12.9% Reduction (After Installation of ESP)
Customer Comments
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We are an air conditioner dealer and specialist.
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ESP works similarly to subcooling, lowering refrigerant temperature and pressure, reducing compressor workload, and cutting power consumption.
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While initial data was collected in low outdoor temperatures, ESP is expected to be effective even in high temperatures, enhancing refrigerant liquefaction and improving cooling performance.
Note
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With ESP, energy savings were confirmed even under high outdoor temperatures, stabilizing power consumption and improving peak current control.
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This is another key advantage of ESP.
ESP Effect
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The current value was significantly affected by the outside temperature and was high after the ESP was installed, but the maximum current value during high speed operation was considerably reduced.
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Reduction of Power Consumption: 12.9%
Figure 1: Average electric current grouped by external temperature bins, comparing before and after ESP installation.
Figure 2: Scatter plot and regression lines showing the relationship between external temperature and electric current.
Case Study 2: Super Market (SIN)
Industry / Facility Overview
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Commercial facility (total floor area: 500 m2)
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Air-conditioning systems of 10HP, 20HP x 2 nos. are in operation at 24h. (DAIKIN VRV A SERIES)
Purpose of Introduction
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Responding to high electricity costs of the shops and eliminating cooling irregularities
Introductory Products
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ESP-5 nos.
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ESS (1 year)
Effects of introduction
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Average 16.3% Reduction (After Installation of ESP)
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Maintenance Works Scheduled for June 2025
Customer Comments
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Before the ESP was installed, the set temperature of the indoor units was 19°C to 20°C, and change to 23°C-24°C after applying ESP.
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We observed a reduction in electricity costs after the ESP installation.
Note
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Refrigerant analysis showed contamination and a change in composition, leading to the complete replacement of the refrigerant.
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Changed the indoor unit setting temperature from 19°C/20°C to 23°C.
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The refrigerant temperature in the CU was improved 7.8% (from 53.6°C to 49.4℃).
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Reduction of Power Consumption: 16.3%
ESP Effect
Blue - Before
Red - After
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(Will be started from June, 2025)
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Expected to further enhance energy efficiency through real-time optimization
ESS Effect
Case Study 3: Super Market (SIN)
Industry / Facility Overview
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Commercial facility (total floor area: 500 m2)
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Air-conditioning systems of 10HP, 12HP, and 16HP are in operation at 24h. (DAIKIN VRV Ⅲ)
Purpose of Introduction
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Responding to rising electricity costs and eliminating cooling irregularities
Introductory Products
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ESP-2 nos. (Trial Purpose)
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ESS (3 month after installation of ESP)
Effects of introduction
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Average 12.6% Reduction (After Installation of ESP)
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Average 21.5% Reduction (3 month)
Customer Comments
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Before the ESP was installed, the set temperature of the indoor units was 21°C to 23°C, and change to 25°C after applying ESP and 9 of the 17 indoor units no longer needed to be operated.
Note
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The energy reduction rate excludes savings from changing the operation of indoor units (only 8 out of 17 units in use).
ESP Effect
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The current value was significantly affected by the outside temperature and was high after the ESP was installed, but the maximum current value during high speed operation was considerably reduced.
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Reduction of Power Consumption: 12.6%
Blue Dot/Line - Current/Ambient Temperature before ESP
Red Dot/Line - Current/Ambient Temperature after ESP
ESS Effect
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We confirmed the effectiveness of ESP during the first 3 months after its introduction. Furthermore, by raising the indoor unit setting temperature by approximately 3°C and optimizing the settings, we confirmed a further reduction in power consumption.
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Reduction of Power Consumption: 21.5%
