More than 300,000 homes are at risk of losing their hot water and heating when their electricity meters are switched off on June 30, the industry has said.
Energy companies have admitted that current rates of replacement mean it is likely that thousands of Radio Teleswitching System (RTS) meters will not have been upgraded before the technology is switched off.
The RTS system – used by older electricity meters to control heating and hot water – uses a longwave radio frequency to switch between peak and off-peak rates.