The decarbonization of the power supplies, with the introduction of renewable energies, new kinds of loads, such as smart vehicles, are making the electric power system a dynamic environment. The ancient assets, the legacy software and protocols used for the control of the power grid are not enough anymore, and the introduction of new ICT technologies is bringing the concept of smart grid, allowing the orchestration and the integration of the efforts of the main actors of the power system (generators, carriers, and consumers). This is translated in the need of increasing the observability of the power grid, which can be achieved via a huge network of sensors, interacting among them and with the infrastructure in order to provide information about the physical world.