The present document is to address study use cases, potential new service requirements for 5G system to support Smart Grid including the following topics:

• Smart Grid services, e.g. IEC standards, and their communications requirements including capacity, latency, availability, end-to-end QoS, resilience/redundancy and security.
• Deployment requirements when considering constraints e.g. service lifetime, coverage (ubiquity), electromagnetic applicability (e.g. penetration, ability to operate in high EM environments,) etc.
• Additional requirements due to operational manageability - e.g. the ability to configure and monitor the real (achieved & up to date) availability of virtual network topologies
• New Smart Grid use cases and potential service function requirements: e.g. on-demand power supply, distributed power supply system, distribution automation, higher accuracy power load measurement and control, meter automation, etc.
• Communication KPI and service requirements for enabling microgrids, DER and specifically distributed generation (DG) that require 5G wireless communication (e.g. wind and solar energy generation, including scenarios at or near residential / consumer premises, etc.)

The following documents contain provisions which, through reference in this text, constitute provisions of the present document.

• References are either specific (identified by date of publication, edition number, version number, etc.) or non-specific.
• For a specific reference, subsequent revisions do not apply.
• For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document.

Communication infrastructure is essential to the successes of smart energy, generally termed the 'Smart Grid.' A power grid consists of four building blocks: power generation, transmission, distribution, and consumption. These different phases require different services, and these services have distinct communication requirements. Examples of communication include data collection, control and ongoing regulation, though these are functions of diverse services - e.g. SCADA applications for the Energy Management System (EMS) or Distribution Management System (DMS). Smart Grid communication infrastructure, overcomes different challenges in order to provide:

• Distributed power generation, increasingly including 'renewable' or 'clean' energy sources
• Safe & highly efficient power transforming & transmission
• Flexible & reliable power distribution
• Efficient & available power consumption
• Cyber security & resilience/redundancy

Smart Grid services today rely upon a range of telecommunications services, delivered through a blend of private networks and commercially provided services. As the energy system goes through changes, becoming more pervasive (in territorial terms,) complex and sophisticated to meet the above goals, there is a distinct opportunity for 5G to meet more of the utility communication sector's needs and thereby become increasingly relevant to this vertical, addressing existing shortcomings, as it builds out further capacity and enhances existing infrastructure. Many of these grid services are standardized by other standards bodies, e.g. IEC60870, IEC61850 and IEEE. In summary, it is considered beneficial for 3GPP specifications in addressing 5G system support of different use cases and service requirements for Smart Grid.