Electrical Specifications

TTG Imaging may be able to assist. 

probably easiest and safest way is to log into your energy provider account and check daily or weekly consumption and compare to a day that no exposures were performed to understand what exposures require as far as power. There is no simple math for this because xray is 99% inefficient and the loss of energy before the shot so you cannot simply factor the mA and kV and time duration of exposures. But the answer is a LOT, probably $50k monthly electricity for hospitals running a dozen machines normally.