Thames Water is to appeal to the UK’s competition regulator to be allowed to raise customers’ bills over the next five years even higher than previously granted, prompting a furious reaction from campaigners.
The water company, which serves 16 million customers in London and south-east England, will ask the Competition and Markets Authority (CMA) for permission to raise bills from 2025 to 2030 by more than the 35% the water regulator for England and Wales, Ofwat, approved last year.