Compressed air energy audits come in all shapes and sizes, from free and basic to full system audits with specific measurements, such as leak detection, power and flow rate, maintenance reviews and more. Inexpensive audits are available, but as with the more comprehensive studies, be cautious of how they are performed and by whom. Here are some tips on how to prepare for an energy audit.
Five Questions to Ask Your Prospective Auditor
It’s important to thoroughly interview your auditor before commencing the audit; make sure you ask and get satisfactory answers to the following questions:
- Do you have references or previous customers that I can talk with?
- Will you help evaluate the complete system, Supply and Demand side?
- What kind of report will you supply?
- Will you help remedy the inefficiencies?
- Will you offer a post audit and perhaps an annual PM check-up study?
Another key element to consider before employing a company to perform an audit is if the audit can be performed when the systems are running normally. There is usually no need for downtime during an audit.
Which Type of Audit Do You Need?
Often, the audit you choose depends on the type of operation and the budget available. Audits generally fall into three categories:
- Basic Audit (walking the line)
- Data Logging
- Full System Audit
A basic audit includes a visual inspection of the compressed air system and is often available from compressor manufacturers at no charge. Take advantage of this type of audit on a regular basis to identify inefficiencies or performance weaknesses as well as areas where you can maximize efficiency and boost productivity.
Data logging involves performance tracking of the compressor system for a minimum of seven days which often reveals if the compressor is correctly sized or if it is operating at its optimal CFM output. While data logging does come with a cost, check with your local utility providers for available rebates or incentive programs.
A full system audit can cost up to $20,000 depending on the nature of the audit, but typical savings range from 30% to 50% when the audit recommendations are put into practice. Because a full system audit often includes air measurement of compressed air demand, air leak detection and control and air quality, the benefits – lower energy costs and higher production efficiency – usually pay for the investment.
Are you ready to schedule a compressed air system audit?
If you’d like to learn more about energy audits or schedule a compressed air audit, start by requesting a quote.
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