Can you convert kWh from monthly electricity meter readings to maximum demand kW or kVA?

Question

Can you convert kWh from monthly electricity meter readings to maximum demand kW or kVA? I have been provided with a tonne of metering data for a site I need to work out the maximum demand (kVA) that the building uses. Is this possble?

AJJewsbury · Accepted Answer

Not really. at least not without more information. 3000kWh per month could be a steady 4kW load or 100kW for 1hr/day (approx). If you knew something about the kind of loads (e.g. continuous industrial process running 24x7 or simple offices open 8hrs/day 5days/week you might be able refine your guess a bit. 
 If you had half-hour readings, rather than monthly, you might be able to have a bit more confidence in your guesses - but you'd likely still need to know a bit about the nature of the loads - e.g. a few high-power but short duration loads (like an instantaneous electric shower) can still throw things out a lot. 
 - Andy.

Can you convert kWh from monthly electricity meter readings to maximum demand kW or kVA?

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