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In the current decade of rapid expansion of ubiquitous data storage and cloud computing services, the demand for data center services has seen an enormous increase which is resulting in a continuously rising pressure on the environment in terms of energy consumption and greenhouse gas (GHG) emissions. The recently started project, All4Green, explores potential ICT solutions for collaboration amongst data centers, energy providers, and end-users in order to enable energy providers to save CO2 emissions at the very source of energy conversion. This paper presents an overview of objectives and concepts of the research, discussing the so-called data centers’ eco-system, the technical approach to collaboration and GreenSLAs as economic incentives.