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Chart of the Week


New MOSL data reveals concentrated water market

Steven Britton Regulatory Analyst

Water market operator MOSL has released data which, for the first time, gives a clear picture of the positions of the various retailers in the new business water market. The real surprise was just how concentrated the market is, especially now Anglian Water Business and NWG Business have completed their merger into Wave. Water Plus is the clear market leader with almost a third of all supply point identifiers (SPIDs). Its closest rival is Castle Water, which holds second place despite the formation of Wave and losing the greatest number of SPIDs since market opening. Between them, these two retailers ...

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