How VSD technology helps to
Reduce Energy Used by Compressed Air Systems
Fixed-Speed vs Variable-Speed Compressors
Real data from precision engineering facilities in Singapore show that compressors with Variable Speed Drive (VSD) technology consume between 15% to 45% less energy
Fixed-Speed Compressors
Fixed-Speed Compressors
- Constant speed operation regardless of demand
- Significant energy waste during low-demand periods
- Higher operational costs and carbon footprint
Variable-Speed Compressors
Variable-Speed Compressors
- Adjusts speed based on real-time air demand
- Minimizes energy waste through intelligent control
- Up to 45% reduction in energy costs
*Click chart for more details
Sample Comparison of Energy Usage Patterns
24-hour energy usage data of 50HP (37kW) old fixed-speed and new variable-speed compressor, showing 36% energy savings
Old Fixed-Speed Compressor
New Variable-Speed Compressor
Fixed-Speed Total
4,985 kW
Energy over 24 hours
Variable-Speed Total
3,184 kW
Energy over 24 hours
Energy Saved
36%
(1,801 kW)
Energy over 24 hours
Old Fixed-Speed Compressors
Fixed-speed compressors maintain high energy consumption even during low-demand periods, resulting in significant waste
New VSD Compressors
VSD compressors automatically adjust motor speed to match actual air demand, dramatically reducing energy consumption during off-peak hours
Sample Return on Investment
Clear financial benefits with rapid payback periods - even faster with EEG grant support
Old Fixed-Speed Compressors
New VSD Compressors
Est. annual electricity cost of old Fixed-Speed Compressors based on power meter data
Est. annual electricity cost of new Variable-Speed Compressors based on power meter data
Standard Investment
Project Cost
$49.200
Annual Savings
$29.831
Payback Period
1.6
Years
To full ROI
With Energy Efficient Grant (EEG)
Project Cost
$14.760
Annual Savings
$29.831
Payback Period
0.5
Years
Just 6 months to full ROI
Address
39 Kaki Bukit Road 2, K.B. Warehouse Complex, Singapore 417857
Back To Top
