Pub Date : 2011-12-29DOI: 10.1109/WCST19361.2011.6114211
A. Rathnayaka, V. Potdar, Samitha Kuruppu
Smart Grid (SG) achieves bidirectional energy and information flow between the energy user and the utility grid, allowing energy users not only to consume energy, but also to generate the energy and share with the utility grid or with other energy consumers. This type of energy user is called the “prosumer”. The sustainability of the SG energy sharing process depends on its participating prosumers. Hence the prosumer management schemes are crucial within the energy sharing field. However, the existing literature on SG energy sharing has shown little attention on prosumer participation and management. The contribution of this paper is twofold. First we critically analyze the prosumer management schemes used by existing approaches and identify the open research issues. Second, we introduce a novel concept to manage the prosumers in the form of goal-oriented virtual prosumer-communities and we discuss the aspects of prosumer-community formation, growth and overall-management. The main significance of this approach is that the prosumer-communities facilitate the prosumers with similar interest to join together and increase the quantity of energy to be auctioned to the SG and accordingly increase the bargaining power in the energy market. In addition, the prosumer-communities can attain more sustainable energy sharing process in long-term.
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Pub Date : 2011-12-29DOI: 10.1109/WCST19361.2011.6114255
Alexandre Mello Ferreira
In a multi-tier system having heterogeneous servers, service requests are usually allocated to available server nodes based on scheduling policies to enforce performance. Such an approach leads to underutilized servers in many modern IT service centers during average low workload periods. Looking to increase overall servers efficiency and having slight performance degradation, in this paper we propose a new power-aware routing algorithm for dynamically scheduling services requests that takes into account the tradeoff between energy consumption and performance requirements. Experiments performed in a simulated environment have demonstrated the energy savings of our algorithm against well-known routing strategies such as shortest response time and least server utilization considering three different workload scenarios.
{"title":"Energy-aware scheduling of service requests in multi-tier environment: Analysis and evaluation","authors":"Alexandre Mello Ferreira","doi":"10.1109/WCST19361.2011.6114255","DOIUrl":"https://doi.org/10.1109/WCST19361.2011.6114255","url":null,"abstract":"In a multi-tier system having heterogeneous servers, service requests are usually allocated to available server nodes based on scheduling policies to enforce performance. Such an approach leads to underutilized servers in many modern IT service centers during average low workload periods. Looking to increase overall servers efficiency and having slight performance degradation, in this paper we propose a new power-aware routing algorithm for dynamically scheduling services requests that takes into account the tradeoff between energy consumption and performance requirements. Experiments performed in a simulated environment have demonstrated the energy savings of our algorithm against well-known routing strategies such as shortest response time and least server utilization considering three different workload scenarios.","PeriodicalId":184093,"journal":{"name":"2011 World Congress on Sustainable Technologies (WCST)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125553169","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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