The main objective of the OPEN meter project is to specify a comprehensive set of open and public standards for AMI, supporting electricity, gas, water and heat metering, based on the agreement of all the relevant stakeholders in this area, and taking into account the real conditions of the utility networks so as to allow for full implementation. The Scope of the project is to address knowledge gaps for the adoption of open-standards for smart multi-metering equipments and all relevant aspects – regulatory environments, smart metering functions, communication media, protocols, and data formats – are considered within the project. The result of the project will be a set of draft standards, based on already existing and accepted standards wherever possible. These standards include the IEC 61334 series PLC standards, the IEC 62056 DLMS/COSEM standards for electricity metering, the EN 13757 series of standards for utility metering other than electricity using M-Bus and other media. These existing standards will be complemented with new standards, based on innovative solutions developed within the project, to form the new body of AM / smart metering standards. The resulting draft standards will be fed into the European and International standardization process.