Fujitsu Siemens has unveiled its zero-watt Esprimo 7935 desktop computer, this system has a 89 percent efficient power supply and promises to use no power at all when it's powered off. Traditional desktop PCs consume between 1W and 4W when powered off, unless you pull the power plug. The system is conform to the upcoming Energy Star 5.0 standard, and has a motherboard with no halogen or lead.
Little was shared about the specifications of the system, but we do know it should be available later this year for 600-700EUR.
Businesses with a lot of computers stand to save a significant amount of money each year by ensuring their PCs aren't consuming any power overnight but there are disadvantages. Many companies administer software updates overnight and having the machines unplugged means that's not possible.
Fujitsu Siemens says it has solved this problem by allowing the machines to be awake and consuming a very small amount of power during a predefined time-slot during which updates can take place. Once the time slot passes the machine returns to zero-watt mode until it is switched on by its user.