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BackgroundHigher Education Institutions (HEIs) are aware of the immense importance of achieving their strategic objectives to increase their impact on the society and to be competitive. As a board responsibility, information technology governance (ITG) plays an important role in the overall HEIs performance. Numerous HEIs are making great efforts to properly govern information technology (IT) by using ITG frameworks.ObjectivesThis study investigates the overall adoption of ITG frameworks in different HEIs through a systematic mapping review.MethodWe analyzed forty relevant papers, filtered from 6 selected online libraries, and answered six research questions on ITG implementations at universities worldwide.ResultsThe results show an increasing number of publications on ITG usage in HEIs in the last decade. The largest number of applications is described in Asian countries, while the most popular used frameworks are COBIT, ISO versions, and in-house developed frameworks. Finally, we describe the top challenges and benefits of ITG implementation mentioned in research papers.ConclusionThis paper provides a deep insight into the level of integration of ITG in universities worldwide. The results will be presented to the involved stakeholders at our university to increase the awareness of ITG in HEIs and help its implementation process.

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The use of renewable energy is a major trend to meet datacenters energy needs. However, its intermittent nature requires energy storage devices to store the over produced energy when not being used. Thus, the green coverage value, representing the fraction of total energy consumption covered by renewable energy, is increased. In this paper, we analyze the impact of using different battery sizes to optimize renewable energy usage. We have built a battery simulation tool able to provide the battery state, track the amount of stored and used energy by the battery as a function of the energy consumed by a datacenter and the energy produced by solar panels. We show the impact of battery size on the green coverage percentage, green energy loss, and brown energy taken from the traditional grid. A comparison of these metrics is made for three different geographical locations at 10 • , 35 • , and 60 • latitude. We discuss the competitiveness of constructing datacenters in different geographical locations based on the results.

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