  The electricity production and distribution is facing two major changes.
First, the production is shifting from classical energy sources such as coal
and nuclear power towards renewable resources such as solar and wind. Secondly,
the consumption in the low voltage grid is expected to grow significantly due
to expected introduction of electrical vehicles. The first step towards more
efficient operational capabilities is to introduce an observability of the
distribution system and allow for leveraging the flexibility of end connection
points with manageable consumption, generation and storage capabilities. Thanks
to the advanced measurement devices, management framework, and secure
communication infrastructure developed in the FP7 SUNSEED project, the
Distribution System Operator (DSO) now has full observability of the energy
flows at the medium/low voltage grid. Furthermore, the prosumers are able to
participate pro-actively and coordinate with the DSO and other stakeholders in
the grid. The monitoring and management functionalities have strong
requirements to the communication latency, reliability and security. This paper
presents novel solutions and analyses of these aspects for the SUNSEED
scenario, where the smart grid ICT solutions are provided through shared
cellular LTE networks.
