Energy Saving Audits
Energy Saving Audit
At Compressed Air Systems UK, we provide a range of services surrounding air compressors and the various subsections in the industry. If you are finding your energy charges skyrocketing, look to us to conduct an Energy Saving Audit, to see if we, can help you!
Compressed air systems don’t always run to their best potential with the following all affecting energy efficiency:
- Air Leaks
- Poorly maintained equipment
- Incorrectly specified equipment
- Poorly sized & designed pipework
- Long distances between air compressor and “use point”
- Excessive bends and fittings
Our compressed air usage audits are in accordance with ISO 11011, using an independent data loggers meaning our results are not manufacturer driven, our interests are to save you Energy & Money, helping towards “Net Zero“!
Our data logging equipment allows us to compile a usage survey and detailed report of your compressed air systems condition with particular reference to energy and the operating efficiency of the system. We can monitor pressure, flow, energy, operating temperature, downtime and dew point, as well as carbon reduction. We will only offer you the system that “fits you” best, with the best possible savings!
How do Compressed Air Systems UK access an Energy Audit?
How do we assess an audit?
When we access an energy audit, we look closely at the following key points:
- The current compressor kw sizes
- How many compressors are installed?
- We observe processes within your factory environment
- Take note of any shift patterns
- How many loggers are needed to conduct the survey?
- The cost of electricity on site
- Is the flow, dew point, pressure, temperature required?
- How many days we may need to carry out leak survey?
- We will look for any obvious leak issues and recommend repairing them
- Look for and point out any misuse of compressed air
The energy audit
Our standard audit would consist of installing data loggers for a minimum of 2 weeks, including weekends, to capture a variety of different production demands before presenting a ROI evaluation and report.
Energy loggers are fitted to all compressors, as well as a pressure transducer.
The data loggers collect and store information relating to a compressed air system’s:
- Moisture dew point
- Flow rate
- On/ Off load
In addition, current and voltage loggers enable current, volts, power factor and the true power of each air compressor to be accurately logged.
All data following the time period is downloaded for analysis and is presented in a detailed report outlining opportunities for energy savings.
Not only can any new equipment deliver energy savings and reduce your carbon emissions, it also demonstrates your environmental responsibility. We are working alongside many companies with aims to achieve Net Zero. If you would like to know more about “Net Zero” please click here.
Why should i data log my compressed air system?
To get the most out of your compressed air system, we need to collect data. Our data logger will identify any inefficiencies and highlight adjustments to save energy and money in the long run.
Data loggers collect and store information relating to a compressed air system’s pressure, temperature, dew point and flow rate. Carbon reduction is also monitored. Data loggers should be fitted for at least 14 days, so that the system can be accurately monitored.
While air compressors are energy rating are provided by the manufactures, it’s useful to know how this reflects on your complete system in action.
The data recorded gets analysed to show whether any cost savings can be achieved.
How else can you use data loggers?
With “Net Zero” approaching fast, energy costs rising (the average cost of energy is 28.62 pence per kilowatt hour (kWh)*) and the cost of living increasing, the efficiency of your compressed air system has never been more important! And we’re not eliminating production purposes from the equation. Energy costs are continuing to rise every year. Alongside the increasing environmental responsibility for businesses.
We know, potential savings are no longer good enough. You need the proof, and our report will provide data to prove that you will reduce the carbon footprint of your business, while returning money to your bottom line for any future investments. We really do offer Air Compressors that Pay for their selves!
The data recorded gets analysed to show whether any cost savings can be achieved. But how else can you use data loggers?
1. The most important step of managing a compressed air system is to develop a baseline. This acts as a point of reference to make comparisons from.
The relevant units of measurement are:
- kilowatts (kW), which is the raw amount of power being consumed
- kilowatt hours (kWh), which is a standard unit for understanding energy consumption.
Understanding the kWh usage of your system is important as this is what energy companies base billing on. You’ll also want to establish how many kilowatts of power are required to for the compressed air necessary to power your operations.
If your system is not performing like the manufacturer’s specification, there is most likely a problem.
Minor deviations from your baseline may also help highlight opportunities for change. For example, during weekend reduced production.
2. Troubleshoot problems
Data loggers are useful for troubleshooting, particularly after a system problem has occurred. It is easy to review the data sets to determine what was happening at the exact time of the problem.
3. Ensure pressure stability
Conditions within a compressed air system vary often, but data logging can check pressure stability. It is difficult to monitor system pressure manually but using data loggers allows the data to get recorded and analysed. And when using multiple parameters, such as flow and compressor power, it can be possible to identify the response of the compressor to pressure change, or the response of pressure to compressor changes.
4. Sizing equipment
Before undertaking replacement projects or updating equipment, consider installing data loggers to help size compressors and associated equipment. If you’re working from the existing system’s specification it may not be correctly sized. This makes it difficult to assess whether a smaller or larger system is required. Data loggers provide a snapshot of system operation to avoid inaccurate assumptions and (expensive) incorrect sizing decisions.
5. Verify savings
Remember what we said about ‘potential savings’ not being good enough? Data loggers are necessary to prove predicted savings get achieved. Especially following capital investment for energy projects.
If energy efficiency and total control of your compressed air system is important, don’t take it for granted! Data logging ensures your system is operating at its required performance. It can also open your eyes to money saving opportunities.
For example, Compressed Air Systems UK conducted a data log for a local manufacturer for 2 weeks and were able to achieve savings of £30,000 per annum.
Our Question to you: Where would you invest an extra £30K?
*Ofgem January 2024.