Many people switch energy suppliers to access better deals or new smart tariffs.
However, some customers are surprised to find that their smart meter stops working properly after switching.
The meter may still send readings
In many cases the meter continues to send readings successfully.
But the new supplier may not be able to control the meter remotely.
This means they cannot:
• update tariff settings
• enable time-of-use tariffs
• send commands to the meter
Why this happens
When a smart meter is installed, it is commissioned using specific installation and security codes.
If those codes are not transferred correctly between suppliers, the new supplier may only have limited access to the meter.
The result is a meter that can send readings but cannot receive commands.
Why this affects smart tariffs
Many modern tariffs require the supplier to control the meter.
These include tariffs designed for:
• electric vehicle charging
• overnight electricity rates
• solar and battery systems
If the supplier cannot control the meter, these tariffs may not work.
Why a meter exchange may be required
When suppliers cannot gain full control of the meter remotely, the issue may initially be raised as a communications job.
However, if the problem cannot be resolved, the final solution is often to replace the meter entirely.
If your smart meter isn’t sending readings, see our full guide here.