Chart of the week | Volumetric data shows truth of water switching

Cornwall Insight has closely followed the water switching activity that has unfolded in the new water retail market. Until recently, the only data from market operator MOSL had been on the number of supply points switched. This limited the visibility of the value of customers. This has recently changed when MOSL released aggregate consumption data for retailers’ portfolios.

Our Chart of the week looks at this data. We consider the value represented by retailers’ customer bases and how this has grown or shrunk over time. We also explore the notable trends and wether many of the main incumbents have seen major swings.

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