What changes may be necessary?

It may be necessary to change your meter reading if there is a change in the consumption profile (for example, switching from a simple tariff when the client pay the energy price equal in all hours, or to a two-tariff when the client pay in two different energy prices according to the hours of energy usage, or performing an extraordinary meter reading). These changes are done by the Distribution Network Operator, complying with deadlines and rules defined by ERSE.
In the event of a need to perform at the place of consumption (for example, changes in meter reading or extraordinary reading), the switching supplier deadlines depend on the scheduling and execution of the interventions requested by the distribution system operator, whose deadlines and rules are also defined by ERSE.

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