SMART meters will be used by the NHS to help and monitor dementia patients in their homes.
It is thought that the devices will be able to track their daily routines like cooking dinner or boiling the kettle.
The technology will be able to report any sudden differences in routine that could indicate that the person has fallen, become ill or has had a decline in his mental state.
They will then be able to notify a family member or a carer who will follow the patient's address to verify their well-being.
The NHS process will begin this year after the initial research of IT experts at Liverpool John Moores University.
A six-month observation test was launched for technology in 2017 and a more extensive trial of 50 patients was launched by the University and Mersey Care NHS Foundation Trust.
Experts say the devices could prevent entry into A & E and also allow patients to live independent lives longer without going to nursing homes.
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Ministers have previously promised to install the devices in each house by 2020, but the launch was a success and is late.
In a statement, the Department of Enterprise, Energy and Industry Strategy (BEIS) said that being able to monitor a patient at home with their consent "shows how the innovative technologies enabled by smart meters can improve many aspects of our life, not just our energy consumption ".
They added: "This type of technology has the potential to change someone's quality of life and the lives of their families, for the better by helping patients with long-term conditions stay home and remain independent for longer."