British water companies will be forced to repay a net £67m to customers after the regulator penalised them for missing performance targets.
Thames Water, the supplier to London and the Thames Valley, will have to pay back £53m to its customers, the biggest charge under the regulator Ofwat’s system of rewards and penalties. Southern Water, which runs services from Kent to Hampshire, will repay £46m, while South West Water will repay £15m.
Water companies hold a monopoly on supply in their areas,
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