Case Study
Improvement in Dissolved Oxygen and Efficiency in Power Consumption
PT. Kawasan Industri Medan
Improved Dissolved Oxygen to 3 ppm ~ 5 ppm of communal wastewater facilities in 2 weeks with reduced power consumption by 50%. The implementation of Bluewave PowerSave further drives efficiency by 23%.
Chemical consumption drops by half. Overhead drops to less than 30%. Annual saving of SGD $ 65.000,- turns utility department of the state-owned company into a highly efficient and productive exemplary showcase in Indonesia industrial estates.
Objective
What This Study Aims to Achieve
1
Assess Pre-Automation Energy Consumption
Evaluate energy usage patterns before implementing automation dynamic configuration.
2
Compare Post-Automation Efficiency
Analyze the improvements in energy efficiency after automation dynamic configuration.
Methodology
How the Data Was Collected
Before Dynamic Configuration
- Data collected from Jan 11, 2025 to Jan 16, 2025
- Included data from PM & DO meters
After Dynamic Configuration
- Data collected from Jan 18, 2025 to Feb 23, 2025
- Included data from PM & DO meters
Analysis Methodology
- Measurement of Power & DO
- Benchmarking energy consumption
- Statistical comparison between data before and after dynamic configuration
After Dynamic Configuration
- Data collected from Jan 18, 2025 to Feb 23, 2025
- Included data from PM & DO meters
The graph shows daily average DO trends over two weeks:
Solid lines represent data from Week 1, while dashed lines indicate Week 2.
This visualization helps compare dissolved oxygen variations over time for water quality analysis
Result: Equivalent DO Readings
The graph shows daily power consumption trends before and after automation:
Before Automation (Jan 11–16, 2025):
Steady consumption, peaking on Jan 14 (~165 kW).
After Automation (Jan 18–23, 2025):
Significant reduction, lowest on Jan 21 (~120 kW).
Insight: Automation improved energy efficiency while maintaining same DO performance
Energy Consumption After Automation
Result of Automation
Daily Total Power Consumption Comparison by Active Units
- Week 1 (Jan 11, 2024 - Jan 16, 2025): 22,540.56 KWh (Before Energy Saving)
= 22,540.56 x 0,13 SGD/KWh
= 2.928,56 SGD in 5 days running - Week 2 (Jan 18, 2024 - Jan 23, 2025): 17,272.95 KWh
= 17,272.95 x 0,13 SGD/KWh
= 2.244,17 SGD in 5 days running
Energy Efficiency 5 days running:
- Efficiency Energy Saved = (Before - After) = 5,267.61 kWh
- Efficiency Energy (%) = (Efficiency Saved / Week 1) x 100 = 23.37%
- Saving = 684,39 SGD in 5 days
Summary
Key insight from the impact of dynamic configuration in automation,
Daily Total Power Consumption Comparison by:
Active Units
Week 1 (Before automation):22,540.56 kWh
Week 2 (After automation):17,272.95 kWh
Energy Efficiency
Efficiency Energy Saved:5,267.61 kWh
Efficiency Percentage:23.37%
Equivalent Monetary Savings
684,39 SGD savings in 5 days running (Before vs After)
Energy Savings Automation
while maintaining equivalent performance
performance
Singapore Office
71 Ayer Rajah Crescent #04-01, Singapore 139951
Indonesia Office
Medan
Jl. R.A Kartini II, No. 11 Madras Hulu 20152 Medan,
Sumatera Utara
Surabaya
Rungkut Mutiara A16, Ruko Grandcity, Rungkut, Surabaya 60296
Jakarta
Gold Coast Office Tower, Tower Liberty 7F
Jl. Pantai Indah Kapuk Boulevard, RT.6/RW.2,
Kamal Muara, Penjaringan, Jakarta Utara,
DKI Jakarta 14470
Laboratorium
Ruko Sentra Niaga Blok J No. 2 Duri Kosambi,
Cengkareng, Jakarta Barat 11750
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