Why is there an increase in electricity bills after the electromechanical meter is converted to electronic meter?

The old electromechanical meters do not record the readings accurately, which resulted in the lower readings than the new meter. This is possible because the accuracy of the meter can be affected by:

Environmental factors such as weather, temperature and humidity:
Electromechanical meters consist of many moving parts that have a tendency to wear out and not functioning properly after a period of time.
The design and meter operation factor:
The electrical usage measurement mechanism in the electromechanical meter could cause the meter to slow down and sometimes the disk could stop on its own.

Due to these factors, the old electromechanical meters should be changed, especially when it has been used for some time and could no longer record accurate readings.

Can the users choose to install their own electricity meters at their own premises? Which organisations monitor the electricity meter manufacturer? What steps have been taken by the Energy Commission in regulating the electricity meter industry? In the events of disputes between consumers and the licensees regarding the electricity meters, what are the actions taken by the Energy Commission? Are the test laboratories that run the calibration process accredited by the regulatory body?

Meter