Thames Water customers could see their bills come down in the future thanks to an environmentally friendly piece of engineering.
The utilities company has revealed plans to spend £250 million accelerating what it describes as a "vast 'poo power' programme" designed to ensure it generates a fifth of its electricity from waste that flows from the sewage works.
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Ed Miliband is expected to reveal more details of a levy on homes worth more than £2m in his speech to the Labour conference today.
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