The electric grid delivers electricity from points of generation
to consumers, and the electricity delivery network functions via
two primary systems: the transmission system and the distribution
system. The transmission system delivers electricity from power
plants to distribution substations, while the distribution system
delivers electricity from distribution substations to consumers.
The grid also encompasses myriads of local area networks that use
distributed energy resources to serve local loads and/or to meet
specific application requirements for remote power, village or
district power, premium power, and critical loads protection.