Power utility Elektroprivreda found itself with a complex mix of hardware and software for the running of its power generation and distribution operations. Their challenges are to simplify diverse, sprawling IT infrastructure and reduce costs and improve efficiency of data center operations. They chose Cisco to overcome these challenges. They have implemented private cloud solution based on Cisco unified computing system and Microsoft Hyper-V virtualization software on Windows server 2012. The results of implementing Cisco were server consolidation, from 42 physical and 90 virtual servers to just 12, greater virtualization, from 75 to 98 percent and easier to integrate newly-acquired coal mines.