Super-sewer to raise bills 10%

Building London’s ‘super-sewer’ will cost Thames Water’s customers an extra £40 per year by the end of the decade, if Ofwat permits the rise.

Thames Water is proposing to raise customer bills by £40 a year by the end of the decade to raise £2.8bn for its Thames tunnel ‘super-sewer’ project.

Water company business plans submitted to the regulator Ofwat reveal that Thames Water wants to charge its customers an extra 10% between 2015 and 2020 (see table). The actual price increase will be much higher as Ofwat will allow English and Welsh water firms to add inflation to their bills each year.

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