As of 31st December 2020, there were 23.6 million smart and advanced meters in Britain, according to BEIS figures

The regulator has issued Daligas Limited, Enstroga Ltd, Entice Energy Supply Limited, Euston Energy Ltd and Symbio Energy Limited with final orders

More than four million SMETS2 meters have now been installed, according to the Data Communications Company

Ofgem is consulting on issuing them with final orders

New research reveals some energy companies are still rolling out outdated smart meters that fail to work when consumers move to a different supplier

Compare The Market says many SMETS1 devices could stop working properly if users change energy supplier

It says BEIS underestimated the time it would take to implement the infrastructure and technical standards for the second generation of smart meters

Currently, consumers may lose the smart services provided by the technology when they switch to a different supplier

The government extended the date from July to October 2018 but the energy firm said it “repeatedly urged BEIS” to push the deadline for SMETS1 meters to at least 2020