Who should read the meter?

The distribution network operator owns the meter. They are responsible for installing, maintaining, and replacing the meter, and are therefore obligated to take periodic readings.

For consumers with a contracted power of up to 41.4 kVA, readings are taken remotely (without on-site visits) and automatically.

The readings are communicated by the distribution network operator to the supplier, who considers them for billing purposes. If the supplier does not have information about the actual meter reading, the invoice is issued based on estimated consumption.

See the Misleading Practices Alert on reporting meter readings.

What is an extraordinary meter reading?

If the distribution system operator has not had access to the meter for four months and the consumer has not reported a reading, an extraordinary reading must be carried out.

The date for the extraordinary reading must be agreed between the consumer and the distribution system operator.

If there is no agreement on the date within 20 days of the consumer being notified, the supply may be cut off.

Extraordinary readings entail costs for the consumer, which are determined annually by ERSE.

How does the meter work?

The distribution system operator must provide you with information on how to read the meter information. If you have any questions, please contact the distribution system operator.

If you suspect that the meter is not working properly, you can request an extraordinary check. If the meter is found to be working properly after this check, you will be responsible for the cost of the check. If the meter is found to be faulty, the costs responsibility is of the distribution system operator.

You can consult the list of companies accredited to check meters on the website of the Portuguese Accreditation Institute (IPAC).