History
The Xbox console, released in 2001, marked Microsoft's entry into the hotly contested video game console market traditionally dominated by companies such as Sega and Nintendo. The console was known for game series such as Halo, which has continued to the Xbox 360.
Power Requirements
According to the original Xbox's support page, the power requirements are 180 to 265V AC power supply, running at 50 Hz.
Power Consumption
While playing games, the Xbox runs at 100 W, according to the original Xbox's support page.
Power Leakage
Leaving the Xbox plugged in when not in use allows it to leak energy. According to Team Xbox, the original Xbox leaks only 3.5 kWh annually, costing on average only $0.53. While playing games, the console leaks annually 50.96 kWh, costing on average $8.17.
Considerations
To cut electricity costs and extend the life of an Xbox, it is best to unplug the system when it is not in use. Of the original three systems in this generation (PlayStation, GameCube, and Xbox), the PlayStation consumes the least amount of electricity, followed by a tie between the GameCube and Xbox.