IT directors have estimated that they could save hundreds of thousands of pounds through energy saving by using the green features in Windows Vista.
Adrian Davey, head of IT at Tube Lines, said, "Our planned upgrade onto Windows Vista had to be economically efficient. With 2,500 seats, we estimate we would save £40 to £50 in terms of power savings." Over the life of PCs, Davey said this would equate to savings worth half a million pounds.
Davey said the energy savings would help Tube Lines meet its targets to reduce its carbon footprint. Tube Lines is due to roll out Vista in September 2007.
Geoff Connell, chief information office at the London Borough of Newham, estimated the council would save £50 per PC across the 5,000 PCs the councils has. "Even with all the internal PR efforts and green initiates, we found that 1,200 people were still leaving their PCs on overnight," he said. Connell said he expected he would save £50 per PC in energy costs by making use of the power-savings features in Vista.
Energy saving would vary depending on how the PC is used. "if someone is running a screen saver picture of their family on their desktop PC, this will consume power from the graphics processor," Connell said.
Connell said Newham would upgrade to Vista in 2009.