Compressed air systems are among the most energy-intensive utilities in industrial operations—often responsible for up to 30% of total electricity use. In Australia’s high-cost energy environment, improving compressor energy efficiency is critical for both cost control and sustainability. This article outlines what drives energy consumption in compressed air systems and how energy-efficient compressor hire solutions can reduce operational spend—without capital investment.
Why Energy Efficiency Matters
Compressed air is essential, but it’s often inefficient:
- Up to 90% of input energy can be lost as heat in poorly configured systems
- Electricity prices in Australia make compressed air a major cost centre
- Reducing energy use improves profitability, supports ESG targets, and reduces carbon emissions
- ISO 11011 and AS/NZS 3598.2:2014 standards guide efficient system design and auditing, and may be required for compliance or reporting
Relevant Australian Standards
- AS/NZS 3598.2:2014 – Standard for conducting energy audits in industrial facilities
- ISO 11011 – Framework for assessing compressed air energy efficiency
- Compliance may support broader sustainability and carbon reduction initiatives, and may be required under industry-specific energy or OHS programs
Key Factors Driving Compressor Energy Use
Several common issues contribute to unnecessary energy waste:
- Incorrect sizing or use of outdated, inefficient equipment
- Air leaks in piping and connections
- Inefficient layout or lack of air receivers
- Over-pressurisation and poorly set pressure controls
- Inadequate maintenance—clogged filters or fouled coolers increase power use
- Light or fluctuating loads—running a fixed-speed compressor inefficiently
Strategies to Reduce Compressor Energy Costs
Improving compressed air system performance doesn’t need to be complex. Key strategies include:
- Conducting a compressed air audit using ISO 11011 or AS/NZS 3598.2
- Installing VSD compressors to match output to demand and reduce idle running
- Maintaining optimal pressure levels—each 1 bar of excess pressure can increase energy use by 6–10%
- Fixing air leaks and improving piping design
- Installing dryers and filters properly to minimise pressure drops
- Hiring energy-efficient systems instead of relying on legacy equipment
Why Hire Instead of Buy?
Rent Air offers a cost-effective way to improve system efficiency without the risks of ownership:
- Access the latest energy-efficient compressors, including VSD units
- Scale up or down based on actual air demand
- Equipment is pre-configured for energy savings, including integrated dryers and filtration
- No capital expenditure—ideal for temporary projects or budget-constrained operations
- All servicing and performance monitoring included, ensuring peak efficiency and reliability
- Eliminate guesswork and avoid the cost of operating oversized or inefficient legacy systems
Check out our compressor hire options
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Improving compressed air energy efficiency can lead to immediate cost savings and long-term sustainability gains. With Rent Air’s compressor hire solutions, you can reduce compressor energy costs through smart equipment selection, expert advice, and reliable servicing—all without upfront investment. Whether you’re upgrading your setup or running a temporary project, Rent Air helps you stay efficient and compliant from day one.
