CEI (Ciudad Energéticamente Inteligente – Energetically Smart City) aims at improving the energy and environment conditions of living areas of the city, by managing correctly the existing infrastructures and resources. The improvement will be enabled by the development of technology systems (energy nodes control technologies, energy-environmental sensors technologies, technologies for the improvement of maintenance methodologies) that make possible the control of energy and environment

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... s of those areas. This project is funded by by the Valencian Institute of Business Competitiveness (IVACE) and European Union through the European Regional Development Fund (ERDF). This work package aims at designing and developing the ICT system associated to the energy management systems developed in the project. The first layer of this architecture tackles data acquisition: energy data, weather data, and other relevant data from the energy management systems deployed in the city. After data collection, the system implements two analysis modules: A rule-based correlation engine, which will identify events over a subset of data sources. A big data analytics engine, which will learn from historical data by applying statistical techniques. In order to provide these ICT services, there will be a cloud computing scalable back-end. In addition, a web-based front-end will visualize both data and their analysis results. This document describes the ICT infrastructure: cloud big data architecture, communications layer, and correlation engine. Future documents will focus on the data analytics based on big data and rule-based techniques; and on the visualization modules.