The success of the European vision of a low carbon electricity grid that minimises greenhouse gas emissions; and enhances security, quality and reliability of supply depends on how smart infrastructures, combining energy and telecom, are developed and implemented for the wider integration of security-aware distributed energy resources into the increasingly decentralised grid. MAS2TERING, a 3-year technology-driven and business-focussed project, is aimed at developing innovative information and communication technology (ICT) platform for the monitoring and optimal management of low-voltage distribution grids by integrating last mile connectivity solutions with distributed optimisation technologies, while enhancing the security of increased bi-directional communications. The project also aims at enabling new collaboration opportunities between grid operators and telecom and energy companies, both from technology and business perspectives. The project consortium includes prominent industrial organisations and research institutes from the European energy, telecom and security fields, to leverage the critical dimensions of energy, ICT, security and business. Nine project partners are CEA, Utility Partnership Limited, R2M Solutions , GDF Suez, Cassidian CyberSecurity, Telecom Italia, Cardiff University, Waterford Institute of Technology and Laborelec, from five European countries: France, United Kingdom, Italy, Ireland, Belgium.