The standard meter is replaced upon notification in the event of a failure or approximately every 10 years in the event of uninterrupted operation. In this case, the entire procedure is initiated by the energy distributor. The end user is notified of the need to replace the meter by letter or electronically (depending on individual consents expressed in the contract). Then, a mutually convenient date for replacing the device is agreed. The meter is always replaced by a qualified installer delegated by the energy company.
Remember that before agreeing to replace the energy meter, you have the right to ask the installer to identify himself. Each energy plant employee must show his or her ID badge. It confirms authorization to perform a specific type of work and is directed by the electricity distributor with whom you have concluded a contract.
Remember not to be deceived! Unfair practices of some sales representatives are known and unfortunately quite common. Under the pretext of replacing the meter, they force you to sign an energy supply contract on new (often very unfavorable) terms! This is one of the reasons why it is worth checking with the installer before starting work on replacing the meter.
The meter should be replaced with a bidirectional one only after installing the photovoltaic installation, but before connecting it. This is important because only a specially designed device will count the number of kilowatt-hours of energy introduced into the network.