INTEGRIS project proposes the development of a novel and flexible ICT infrastructure based on a hybrid Power Line Communication-wireless integrated communications system able to completely and efficiently fulfill the communications requirements foreseen for the Smart Electricity Networks of the future.This includes encompassing applications such as monitoring, operation, customer integration, demand side management, voltage control, quality of service control, control of Distributed Energy Resources and asset management and can enable a variety of improved power system operations, some of which are to be implemented in field trials that must proof the validity of the developed ICT infrastructure.Focus is on interoperability of the PLC, Wireless Sensor Network and Radio Frequency Identification, technologies that together are able to achieve the indicated goal with reasonable cost.The system will require an adequate management system that is also an objective of the project. Such system will be based on beyond the state-of-the-art cognitive techniques to provide the system with the adequate flexibility, scalability, availability, security, enhanced system life-time and self-healing properties as is necessary in complex and dynamic systems.A further objective is to research on the limits and benefits of distributing smart grid applications in the newly designed INTEGRIS system. This will have an impact on the availability of those applications and influence the developed devices and platforms since they will require a certain level of storage and computing capabilities.The final aim of the INTEGRIS project is to provide an ICT system that enables the improvement of the performance of the electricity distribution grid in agreement with the impact foreseen in the work program.The INTEGRIS project is a cross thematic research approach integrating knowledge and partners from ICT and Energy fields and aims to create and consolidate such a cross-thematic team.