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→What is the traditional grid like?
* A marketing term, rather than a technical definition. For this reason there is no well defined and commonly accepted scope of what "smart" is and what it is not.<ref> http://www.iec.ch/smartgrid/background/explained.htm </ref>
==What is the traditional grid like?Traditional grids==
Traditionally, energy systems from power generation to homes are one-directional and based on more predictable, controllable and centralised power generation, looking something like this: