Thames Water claims customers with smart meters generally use 12 per cent less water than those who are unmetered.

Thames Water began its industry-first rollout of smart meters in February 2014 with the aim of metering all 3.3 million properties to which it supplies water.

The Thames Water programme of work will take years to complete, with a smart meter for every Thames customer, working borough by borough to deliver over three AMP periods at a cost of £300 million. Smart meter customers are connected to a wireless network so they can view their water consumption at any time.

“We go and see our engineers and they’re excited by the information they’re getting and the way that they are going to be able to run the networks differently with the information they’re going to get from something like smart metering,” said Stuart Siddall, chief financial officer, Thames Water.