The switch off will affect energy customers that have an RTS meter in their home.
It is estimated that up to 11,000 households in Leicestershire may have Radio Teleswitch Service meters for their electricity supply.
The radio signal controlling these meters is being switched off from the 30th of June.
Ofgem, which is the independent regulator for the UK's energy sector, said that 'without the technology to tell RTS meters when to swap between peak and off-peak rates, they may no longer work properly, and it may mean that a consumer’s heating and hot water supply stops functioning as normal.
'If you have an RTS meter, your electricity supplier will get in touch to arrange an upgrade to a smart meter before this deadline.'
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