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A clear understanding is required of the context for power measurement and prediction if an organisation or an individual is to understand how much energy is used by their IT equipment whether in the office, data centre or at home.  The view is that there are two key factors which affect the energy consumption of a device:
•    the actual power consumption of the specific devices - frequently this is age related
•    the pattern of its use


The experience of ‘plate values’ (maximum power consumption values) found on most devices will provide a ‘rough order of magnitude’ in the energy being consumed and resulting carbon footprint.


But to improve the companies confidence in any electrical and carbon efficiency report of the devices used on a day to day basis, actual electrical measurements will be necessary!

 

Power Station