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Major power utilities today operate multiple redundant data centers with hundreds to thousands of utility grade computers to satisfy the computational needs of monitoring and control applications. Some utilities have migrated their customer applications to hosting service providers, but the use of virtualization and cloud computing has found little room. In contrast, the banking industry, which has been traditionally risk averse, is embracing cloud technology in an effort to meet customer demands quickly. The authors wonder why the electric power industry is avoiding the use of cloud technology. Is it because it does not offer any significant benefit compared to dedicated computing infrastructures, or because with today's cloud technology the risks by far outweigh the benefits? Could the risk be mitigated by choosing the right cloud deployment model, or could some of the risks be mitigated without explicit support of the cloud infrastructures? What it will the cost in using cloud in the electric power industry? marginnote{{ iny {f -- Contribution}}}[0cm] These questions make the authors explore the reasons for electric power industry be one of the few industries where cloud computing has not yet found much adoption, even though electric power utilities rely heavily on communications and computation to plan, operate and analyze power systems. They identify a variety of power system applications that could benefit from cloud computing, discuss the security requirements of these applications, and explore the design space for providing the security properties through application layer composition and via assured cloud computing. As a negative point, this paper outlines potential power applications and their security requir... ... middle of paper ... ...ecause VMMs have privileges to inspect the state of client VMs. As conclusion, these potential solutions that can address individual security concerns, either in the form of cloud assurance or implemented at the application layer, there are no ready-made solutions. Further research is needed to understand whether the individual solutions can be composed to provide necessary security properties at an adequate level. We can improve the work that I already developed - Hadoop MR to tolerate arbitrary faults - and run it over a SDN. This allows Hadoop run in a local and wide clusters, whilst OpenFlow adjust the network topology required by the application, and still tolerate arbitrary faults. This network topology can form a cloud composed by several electrical substations. The Hadoop MR run in the clound and process the data sent by thousands of electric appliances.

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