Standards development within the Information Technology sector is harmonized with international standards development. Through the CSA Technical Committee on Information Technology (TCIT), Canadians serve as the SCC Mirror Committee (SMC) on ISO/IEC Joint Technical Committee 1 on Information Technology (ISO/IEC JTC1) for the Standards Council of Canada (SCC), the ISO member body for Canada and sponsor of the Canadian National Committee of the IEC. Also, as a member of the International Telecommunication Union (ITU), Canada participates in the International Telegraph and Telephone Consultative Committee (ITU-T). Scope This document establishes guidelines for improving the energy effectiveness for computing models. Specifically, this document provides a reference computing model for evaluating end-to-end energy effectiveness a holistic framework for evaluating the applicability of energy effectiveness improving technologies, and guidelines for evaluating energy effectiveness.