In the factory/warehouse
There are some excellent opportunities for energy saving that can be made on the factory floor or in the warehouse. The exact equipment used and the processes will be unique to each business, however it is possible to highlight a few common areas in which opportunities can often be found.
Is the system leaking?
• Check for wasteful leaks in the compressed airsystem (20-50% leakage is not uncommon) and repair them immediately – this simple measure could produce dramatic savings.
• It is easiest to check for leaks during quiet periods when there is no demand for air.
Does the compressor run when not needed?
• Many factories run their compressor for most of the day, even when compressed air is not needed, and are unaware of how much this is costing them –encourage staff to switch the compressor off when not in use.
Is equipment left running when it is not being used?
• Conveyor systems, machine tools and other equipment should be switched off when not in use.
Are Higher Efficiency Motors fitted?
• Higher Efficiency Motors now cost no more than normal ones and can save 3-5% of the running cost.
Are Variable Speed Drives (VSDs) fitted to equipment?
• In many cases, using a VSD to reduce the speed of apump or fan by just 20% can halve its running cost.
Are the seals on refrigerated areas/equipment in good condition?
• Replacing worn or damaged seals can drastically reduce refrigeration costs.
Make sure that doors to refrigerated areas are being kept closed.
• If doors to refrigerated areas are left open, even for short periods, costs can rise significantly.
• Are the doors adequate to prevent warmer air entering the chilled space?
Is the refrigeration equipment well maintained?
• Badly maintained chiller plant will increase energy consumption.
• Are chiller units free of ice build-up and are they regularly serviced?
• Is the chiller outlet free of debris and blockages?