How much electrical energy is consumed by a motor of 1 horse power in 1 second?​

22.38 kW

Explanation:

A 1 HP motor is supposed to deliver power equivalent to 746 Watts, or in other words, the rotational mechanical energy delivered by the shaft of the motor is rated to be equal to 746 Watts or .746 kW. This .746 kW is the net result delivered by the shaft of the motor “after” overcoming losses from the total power consumed by the motor from its input source, wherein there are losses attributed to mechanical friction, electrical losses within the motor, sound, heat, etc. This difference between the electrical power consumed by the motor from the “input” source and the mechanical energy delivered from the “output” source (shaft) is defined as performance efficiency, which is mostly around 80% in most motors.

Now, presuming that your motor performs at 80% efficiency, the total power it consumes will be .746 kW/80 X 100 = 0.9326 kW/hour.

Therefore, if you keep the motor running for 24 hours, the total power consumption will be 0.9326 kW X 24 Hours = 22.38 kW

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