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On 13 August 2026, Ofwat published its Draft Determination for Cost Change submissions made in May 2026. These determinations allow Pennon Group PLC £190 million (in 2022/2023 prices) of additional investment for FY27/28 through to the end of AMP 8. Pennon Group PLC will review these determinations and respond with representations by 24 September 2026.
| Date | 13 Aug 2026 |
| Time | 07:04:16 |
| Category | Miscellaneous |
| ID | 4622Q |
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