Ans: Power consumption of the electric or motorized treadmills is majorly dependent on the motor capacity of the machine. Treadmills are available in different motor capacities. Those having higher motor capacity are known to consume more power than the ones with lower capacity. If you consider the average energy consumption of these treadmills, it comes between 300 watts (for low motors) and 900 watts (for high motors). There are other factors that contribute to the electricity usage of the machine. These include the amount of time you are spending working out on your treadmill, your pace, weight, etc. Spending more time on the belt, running at faster speed and more weight is an implication that you will need to work out on the treadmill with more electricity. If you want to know the exact number of watts consumed by your treadmill, do this. Try connecting a power meter directly to your machine.