Aims and Objectives: British Telecom Italia wanted to create a system to cool their hardware centre which contained several hardware systems. Their aim was to introduce a system which is environmentally friendly and financially viable
How it Works:
British Telecom Italia is a company focused on providing solutions for internet based companies. It identified a location that had a naturally replenished waterbed 40 metres beneath the surface. This was essential in developing a sustainable cooling system. The system works by using four wells from which water is pumped into a reservoir under the data centre. The walls of the centre were built to conceal pipes and a heat exchanger. When the cold water is pumped up it serves cooling units on each floor of the building. Fans blow cold air through the cooling units which enter a duct leading to the rooms containing the hardware. The warm water is used in farms nearby for irrigation.
Power in the building is only needed for the pumps and for the fans. In contrast with conventional systems, this scheme has saved energy by around one megawatt. The company is also saving €800,000 per month in energy bills. This in turn helps to provide the customers with a cheaper service than other companies. CO2 emissions were reduced by 4,200 tonnes a year.
Investment for energy efficiency: € 27,000
Savings per month in energy savings bills: € 800,000
CO2 emissions reductions p.a : 4,2000 tonnes
For further details and elaboration on any of the issues touched upon in this case study, please contact the European Environmental Bureau, by clicking here.