Business
Cost Change Draft Determination
Pennon Group PLC has received Ofwat's Draft Determination regarding its May 2026 Cost Change submissions, which confirms an allowance of £190 million in 2022/2023 prices for additional investment from FY27/28 through the end of AMP 8. The company views this as a positive outcome, reflecting the strength of its proposals and core business cases. Pennon Group will now undertake a detailed review of the draft determination and engage in constructive dialogue with Ofwat before submitting its formal representations by 24 September 2026. Disclaimer*

About this update from Pennon Group Plc
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 million 1 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