Despite all real-life changes, energy efficiency can be kept is check if consumption is monitored continuously, collected data is analysed automatically and, most importantly, corrective timely actions are taken. Meaning of ‘timely’ here is specific to your manufacturing process: depending on the pace of energy consumption and scale of fluctuations, ‘timely’ for one company means ‘within shift’, while for another it means ‘within week’.
Wasted energy can’t be recuperated, when it’s gone – it’s gone.
Future waste can be prevented. If monitor-analyse-correct process is broken at ‘correct’ stage, then the whole monitoring effort is wasted. When one wheel is flat, quality of rubber on the other three makes no difference to driving speed.