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In the T-City in Friedrichshafen, Dr. Germar Büngener and around 1,500 other households are already enjoying the benefits of e-metering. He needs a smartphone to do this…

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... and a “smart meter”. These meters are available from many energy utilities and are installed by Deutsche Telekom engineers.

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Users get data on their smartphone showing the consumption of household appliances by using the latest red-hot app: does the coffee machine really need to be switched on for longer than an hour in the morning?

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Consumer electronics can also be a real power guzzler. Leaving a TV or hi-fi system on standby consumes more electricity than you think and this is revealed by smart metering.

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Smart, mobile measurement of consumption data is equally useful to Dr. Büngener in his medical practice too. He can, for example, identify and replace light sources that consume too much power.

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Dr. Büngener analyses his daily electricity consumption on his laptop: smart meters have transferred all the data to a personalized web portal - and to the relevant energy supplier, thus enabling the latter to control energy production more effectively.

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A comparison with the meter box shows that smart metering helps save electricity and money. Energy utilities can use it to adjust peak times and tariffs to match the relevant customer’s needs more closely.