Smart meter installation

Spanish Royal Decree 110/2007 requires distribution companies to replace existing meters with smart devices for all users with a power supply equal to or less than 15 kW. By 31 December 2018, all domestic clients will have a smart meter connected to their distribution company’s remote-management system.

UFD began the roll-out in 2011 and has installed more than 3,6 million meters for residential users, more than 99% of all its units, of which 99% are now effectively integrated into the remote-management system.

Per autonomous region, there are more than 1.5 million meters in Galicia1,1 million in the Autonomous Region of Madrid, more than 609,000 meters in Castile-La Mancha, and 321,000 meters in Castile and Leon.


On a domestic level, smart grid development hinges on the smart meter.

White meter icon with blue background

The switch-over process

Before your meter is replaced, you’ll receive a letter informing you that the new unit will be installed.

As a customer, you can choose to install your own meter or hire the unit from the distribution company. If you choose to hire, an operator authorised by the company will go to your home to remove the old meter and install the new one.

The process involves briefly cutting the electricity supply and the new meter will start to work automatically, without anything else having to be done.

In the event of any problem with the supply, customers can contact UFD on the telephone number 900 111 999.

Meter replacement campaign

More information for customers

The roll-out of smart meters enables us to improve our service to the users connected to our grids.

The smart meter gathers customer consumption data and transmits this data via the electricity cable itself using PLC technology to a data concentrator located at the transformer station.

This data concentrator sends the information to the distribution company’s systems using wireless technology. The distribution companies provide this information to the customer’s marketing company for billing purposes and make it available to the user.

Private area

Tuluz: management using mobile devices

The tuluz app is free and allows domestic users who have a remotely-managed smart meter to look up information about their hourly electricity consumption from any mobile device. This tool allows households to find out how they are using their energy in a simple way.

Moreover, this application has recently added a tool which is the first of its kind in the Spanish power sector, featuring local maps showing where maintenance work is being carried out on the electricity-line network or incidents that could be causing service disruption.

Available for Android, iOS and Windows:

Access the private area for more information