Korea has defined a smart grid road map as a function of five sectors:

1. Smart Power Grid: Open power grids will be built to allow various kinds of interconnections between consumption and supply sources.  The roll-out of such networks will pave the way for new business models, and the building of a power grid malfunction and automatic recovery system that will ensure a reliable and high quality power supply.  (This aspect relates to the development of interoperability standards across power grids.)
2. Smart Consumer: It aims to encourage consumers to save energy by using real-time information and producing smart home appliances that operate in response to electric utility rates. (This aspect relates to Advanced Metering Infrastructure development.)
3. Smart Transportation: It aims to build a nationwide charging infrastructure that will allow electric vehicles to be charged anywhere.  It also establishes a V2G (Vehicle to Grid) system where the batteries of electric vehicles are charged during off-peak times while the resale of surplus electricity takes place during peak times. (This aspect relates to development of harmonized communications protocols between EVs and the grid.)
4. Smart Renewable: It aims to build a smart renewable energy power generation complex across the nation by rolling out microgrids. This will ultimately lead to the emergence of houses, buildings, and villages which can achieve energy self-sufficiency through the deployment of small-scale renewable energy generation units in every end-user premise. (This aspect relates to development of distributed generation and microgrids.)
5. Smart Electricity Service: With the launch of a variety of energy-saving electricity rate plans, this service aims to improve consumers’ right to choose among service suppliers by satisfying their different needs.  In addition, it wants to deliver a wide array of added electricity services through the marriage of electricity and ICT, and to put in place real-time electricity trading system for the transactions of electricity and derivatives.