Behind the name "compressed air system optimisation" lies a small technical revolution at EVVA. Recently, three main compressors were still operating in three independent networks at the headquarters. They supply the compressed air for many manufacturing processes, e.g. for transporting parts within the machine. Disadvantage: If a compressor failed, there was a problem delivering compressed air to the respective area. In addition, the compressors were unevenly loaded because they each had a different number of consumers.
The solution: A superordinated ring main system was used. The ring system now digitally controls and connects 4 compressors. They are now evenly loaded. This "Industry 4.0" project provides intelligent air pressure control and reduces maintenance costs.
Very high energy savings
After production machinery, compressed air generation is EVVA's second largest electricity consumer. Instead of 270, the new compressed air network now only needs around 200 kilowatts of power. Thus annual electricity consumption is reduced. 80,000 kWh, that's almost 50 tonnes of CO² savings per year, or as much as 16 private households consume per year.