Energy efficient and reliable data centers Reino Buchmüller, Head of Low Voltage Systems, Helsinki, August 31, 2011 Energy efficient and reliable data centers Helsinki, August 2011

The digital revolution New media, twitter, search machines and social networks Every day there are three billion searches on google.com alone This equals the daily electrity consumption of 110,000 EU households Green use of our resources espc. energy in a global economy Energy efficiency is one of the leading criteria for optimizing equipment and processes today Data centers are the basis for today‘s communication Green use of energy in data centers has become key differentiator © ABB Group Month DD, Year

New media and social networks Drive data center growth Tools like smart phones and tablets in combination with global social networks open for interactions in all business and private life. Network providers estimate for 2010 to 2015 Global internet traffic will increase 8times* Mobile data traffic will increase 40times* Data servers and fast optical data transmission are the back bone of such intensive information exchange. A concentration of up to several 1000th of servers in one spot give a good economy of scale. Investments in huge centralized data centers (up to 90 MW) * Cisco Visual Networking Index 2010 © ABB Group Month DD, Year

Need for energy efficient data centers Life cycle cost are mainly influenced by data center running cost as power consumption and maintenance cost. Energy cost are exceeding the initial data center investment cost by 5times during life time*. High density of electronics in servers are requiring heavy cooling with air and in hot spots with water even. Large data center installations are located in low temperature regions like Scandinavia or/and close to bigger water reservoirs (sea). Locations for data centers are not selected on where data are needed but on where energy is available and on security matters. © ABB Group Month DD, Year

Data centers the business case for ABB Nearly all network providers have already and are continuing to invest into enterprise class (> 1 MW) datacenters especially in Northern Europe. ABB has the know how and has essential key products for the energy supply part for such investments. ABB is a leading supplier for power and automation technologies, energy efficient systems and network management (smart grid). ABB has best local presence in all countries in Northern Europe. © ABB Group Month DD, Year