Smart Charging has four key functions:

Enexis:

controls the national grid: we do not produce energy, but rather take care of the transport infrastructure. It is in our interest to prevent cables from overloading to ensure that households and charging docks are not cut off. Enexis supplies the data which indicates how much power would be available for ‘filling up’ electric cars. Through the night for example there is ample capacity; much more tolerance on the grid than during the daytime hours. Enexis shares this information via the Open Smart Charging Protocol.

The operator:

manages the charging dock. Depending on how the market will eventually settle, this role could be performed by a wide variety of players. Examples are anyone with a contract with an energy supplier and who has electric drivers as direct clients. Or perhaps a player who has no direct clients, but only manages the charging docks. An operator could receive information from a range of interested parties: from the grid manager as well as the energy supplier and/or client. An optimum charging plan could be put in place based on this array of data.

The Local Controller:

is a cabinet in or on the charging dock, which will pass on the operator’s charging plans to the electric cars.

The (driver of the) electric car:

will determine how much energy is used to charge the battery. The maximum, as determined by the Local Controller, cannot be exceeded.