Why should I consider designing my data center with 208V instead of 120V?

The electrical power consumption of electrical appliances is measured in Watts. Wattage (Watts value) is a product of the rated Voltage and Current. The higher the Voltage the lower the current required to supply the same Watts. The same size wire can carry nearly 2x as much power (Watts) @ 208V versus 120V. A Voltage of 208V yields 1.73 times more power than 120V.