MADRID, Nov. 7 (AFP) – The new ''smart meters'' utilities are installing in homes around the world to reduce energy use raise fresh privacy issues because of the wealth of information about consumer habits they reveal, experts said Friday.
The devices send data on household energy consumption directly to utilities on a regular basis, allowing the firms to manage demand more efficiently and advise households when it is cheaper to turn on appliances.
But privacy experts gathered in Madrid for a three-day conference which wraps up Friday warned that the meters can also reveal intimate details about customers' habits such as when they eat, what time they go to sleep or how much television they watch.
With cars expected to be fuelled increasingly by electricity in the coming years, the new meters could soon be used to gather information on consumer behaviour beyond the home, they added.
''The collection and storage and retention of the data makes it vulnerable to security breaches as well as to government access,'' Christopher Wolf, the co-chairman and founder of the Washington-based Future of Privacy Forum, told AFP.
''It is really an issue of how much information about us can be collected by a third party, how much do they really need, how long do they need to keep it, what should the rules be on retention and when should destruction of it occur.''
More than eight million ''smart meters'' have already been installed in the United States and the number is projected by the government to rise to 52 million by 2012.
Last month US President Barack Obama announced 3.4 billion dollars (2.3 billion euros) in grants to modernise the country's electricity grid, part of which will pay for about 18 million ''smart meters.''
The European Parliament passed an energy package in April which proposed that 80 percent of electricity consumers have ''smart meters'' by 2020.
In Italy 85 percent of homes already have smart meters installed, the highest penetration rate in Europe, according to the Future of Privacy Forum. France is second with a 25 percent penetration rate.
''This is certainly the next stage, the new frontier, in the potential for privacy invasion,'' Elias Quinn, a senior policy analyst at the Center for Energy and Environmental Security at the University of Colorado, told AFP.
''The potential is great for privacy invasion depending on who can have access to this information. We are kind of walking into 'smart meter' development blindly. There is no general informed consent.''