Cities are complex systems in which multiple actors are involved that are related to processes deeply linked, existing in these processes important opportunities for improvement and integration. That is, optimizing critical infrastructures such as transport interchanges, intelligent traffic lights, optimization of transport through interactive systems, control of vehicle flows through monitoring, etc. The daily activities of citizens are generating huge amounts of geolocated information when they move around the city.

It consists of the intelligent city having electricity generation distributed throughout the territory: the supply is individualized (micro-generation), not centralized.

This distribution makes the generation more balanced, and Smart City does not depend so much on large plants. In addition, micro-generation involves the use of renewable energy, which will reduce CO 2 emissions.

Smart Grids are known as intelligent interconnected networks, which have a bidirectional data flow between the service center (or control center) and the user.

Smart Grids are basically electrical distribution networks combined with modern information technologies, which provide data to both electricity distribution companies and consumers.

This is the intelligent measurement of the energy expenditure data of each user, through teleconators where the readings are performed remotely and in real time.

Thanks to the readings of the Smart meters, the consumer can know how much energy is consuming in real time, and can decide whether to disconnect from the network or not to self-consume energy, if it has its own generation.

As an efficiency model, buildings must be intelligent. Household buildings that respect the environment and have integrated energy production systems.

The concept of Smart Buildings is applicable to all types of buildings, both for rehabilitation and new construction.

Smart sensors have the function of collecting all the data necessary to make the city a Smart City. They are fundamental to keep the city connected and informed, and make each subsystem fulfill its function.

In an intelligent city smart sensors are spread throughout the city and provide information to public administrations or directly to the citizen through Wi-Fi and in real time.

Implementation of the electric vehicle and bicycle, and the respective public and private recharge stations.

EMobility not only focuses on electric mobility, but is based on the types of mobility that can be in a city and its goal is that this mobility is smart. Smart mobility aims to facilitate the mobility of users (whether on foot, bicycle, public or private transport) saving on economic, environmental and time costs.

They are the information technologies that will help to control the different subsystems that make up Smart City, through which citizens and administrative entities can actively participate in the control of the city.

From energy supply to waste management, to the optimization of economic centers, everything is done through ICT.

The citizens are without doubt the fundamental part of a Smart City, since without their active participation it is not possible to be able to carry out these initiatives.

It is who, along with new technologies, gives rise to a project that gives you the opportunity to manage your own environment.

A citizen can be a Smart Citizen if he / she participates with the city, energy saving, recycling, electric mobility.