Pennon Group PlcLSE: PNN

Cost Change Draft Determination

· Investegate

13 August 2026

Cost Change Draft Determination

Ofwat has this morning published its Draft Determination in respect of the Cost Change submissions made in May 2026.

We welcome Ofwat's draft determinations for Pennon Group which confirm that they will allow £190 million1 of additional investment for FY27/28 through to the end of AMP 8. The draft determinations reflect the core business cases we proposed and the strength of our submissions.

We will review the draft determinations in detail and we look forward to a constructive dialogue with Ofwat ahead of responding with our representations by the due date of 24 September 2026.

1 In 2022/2023 prices 


For further information, please contact:


Pennon Group plc                   
James Found    Head of Investor Relations              +44(0)7970 066 634         

Media enquiries                      
Michael Turner   FGS Global                                     +44(0)207 251 3801
Harry Worthington                    

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