Ofgem will investigate whether Scottish Power breached rules around its obligations to install smart meters for customers in 2019.

Under the government’s smart meter installation programme, licence conditions mean suppliers are required to “take all reasonable steps” to rollout the energy-saving devices to all homes and businesses by 30 June 2021.

As such, suppliers set annual targets and Ofgem monitors performance against the targets on an annual basis.

Ofgem added that the opening of the investigation doesn’t imply it’s made any findings about non-compliance by Scottish Power.

Scottish Power has been approached for comment.