In September 2018, water companies in England and Wales submitted their plans for the future to Ofwat. We checked and challenged those plans, including how much companies planned to spend to deliver them.
Our 2019 price review final determinations set out a five-year price and service package that will enable water companies to deliver more for people today, invest for future generations and at the same time operate more efficiently and reduce bills.
You can read a transcript of the Final Determinations investor briefing here.
Key documents
PR19 final determinations: Overview of final determinations
UK Government priorities and our 2019 price review final determinations
Welsh Government priorities and our 2019 price review final determinations (in English)
Blaenoriaethau Llywodraeth Cymru a’n penderfyniadau terfynol ar gyfer adolygiad prisiau 2019 (yn Gymraeg)
PR19 final determinations: Policy summary
PR19 final determinations: Overall stretch on costs, outcomes and cost of capital policy appendix (updated April 2020)
Technical appendices
- PR19 final determinations: Delivering outcomes for customers policy appendix (updated April 2020)
- PR19 final determinations: Aligning risk and return technical appendix (updated April 2020)
- PR19 final determinations: Securing cost efficiency technical appendix (updated April 2020)
- PR19 final determinations: Allowed return on capital technical appendix
- PR19 final determinations: Our methodology for the classification of bioresources costs and revenues
- PR19 final determinations: Targeted controls, markets and innovation final decisions
- PR19 final determinations: Strategic regional water resource solutions appendix
- PR19 final determinations: Havant Thicket appendix
- PR19 final determinations: Delivering customer value in large projects
- PR19 final determinations: Our approach to regulating developer services
- PR19 final determinations: Accounting for past delivery technical appendix
- PR19 final determinations: Significant scrutiny companies – Application of lower cost sharing rates and outcome delivery incentive cap
- PR19 final determinations: Securing long term resilience
- PR19 final determinations: Customer measure of experience (C-Mex) and developer services measure of experience (D-Mex) policy appendix
- PR19 final determinations: Business Retail Market Representations
- PR19 final determinations: Reporting guidance – Common performance commitment for the Priority Service Register
Additional documents
- Europe Economics – The Allowed Return on Capital for the Water Sector at PR19 – Final Advice (December 2019)
- Europe Economics – Real Price Effects and Frontier Shift – Final Assessment and Response to Company Representations
- PwC –Dividend discount model analysis for PR19 (October 2019)
- PwC – Funding approaches for leakage reduction
- BMG – Survey approach for C-MeX and D-MeX: Recommendations for the PR19 final determinations
- Jacobs – Review of Water UK Service Levels for PR19 D-MeX Incentive
- Decision document following consultation on Ofwat’s emerging strategy: Driving transformational innovation in the sector
- PR19 draft determinations: Glossary
Changes to PR19 Outcomes performance commitments
In the PR19 final determinations, we provided for changes and corrections to be made to performance commitments during the 2020-25 period.
For an overview of the changes and corrections that have been made, including through corrigenda, see ‘PR19 Outcomes performance commitments: changes and corrections’.
Company-specific documents
Affinity Water
Notification of the PR19 final determination of Price Controls for Affinity Water
PR19 final determinations: Affinity Water final determination (updated May 2020)
- PR19 final determinations: Affinity Water – Cost efficiency final determination appendix
- PR19 final determinations: Affinity Water – Outcomes performance commitment appendix
- PR19 final determinations: Affinity Water – Accounting for past delivery appendix
- PR19 final determinations: Affinity Water – Allowed revenue appendix
- PR19 final determinations: Affinity Water – Accounting for past delivery additional information appendix
- PR19 final determinations: Affinity Water – Delivering outcomes for customers additional information appendix
PR19 final determinations: Affinity Water – Delivering outcomes for customers final decisions
PR19 final determinations: Affinity Water – Accounting for past delivery final decisions
PR19 final determinations: Affinity Water – Aligning risk and return final decisions
Anglian Water
Notification of the PR19 final determination of Price Controls for Anglian Water
PR19 final determinations: Anglian Water final determination (updated April 2020)
- PR19 final determinations: Anglian Water – Cost efficiency final determination appendix
- PR19 final determinations: Anglian Water – Outcomes performance commitment appendix
- PR19 final determinations: Anglian Water – Accounting for past delivery appendix
- PR19 final determinations: Anglian Water – Allowed revenue appendix
- PR19 final determinations: Anglian Water – Cost efficiency additional information appendix
- PR19 final determinations: Anglian Water – Delivering outcomes for customers additional information appendix
PR19 final determinations: Anglian Water – Delivering outcomes for customers final decisions (updated April 2020)
PR19 final determinations: Anglian Water – Accounting for past delivery final decisions
PR19 final determinations: Anglian Water – Aligning risk and return final decisions
Bristol Water
Notification of the PR19 final determination of Price Controls for Bristol Water
PR19 final determinations: Bristol Water final determination (updated April 2020)
- PR19 final determinations: Bristol Water – Cost efficiency final determination appendix
- PR19 final determinations: Bristol Water – Outcomes performance commitment appendix
- PR19 final determinations: Bristol Water – Accounting for past delivery appendix
- PR19 final determinations: Bristol Water – Allowed revenue appendix
- PR19 final determinations: Bristol Water – Cost efficiency additional information appendix
- PR19 final determinations: Bristol Water – Delivering outcomes for customers additional information appendix
PR19 final determinations: Bristol Water – Delivering outcomes for customers final decisions
PR19 final determinations: Bristol Water – Accounting for past delivery final decisions
PR19 final determinations: Bristol Water – Aligning risk and return final decisions
Dŵr Cymru
Notification of the PR19 final determination of Price Controls for Dŵr Cymru
PR19 final determinations: Dŵr Cymru final determination (updated May 2020)
- PR19 final determinations: Dŵr Cymru – Cost efficiency final determination appendix
- PR19 final determinations: Dŵr Cymru – Outcomes performance commitment appendix
- PR19 final determinations: Dŵr Cymru – Accounting for past delivery appendix
- PR19 final determinations: Dŵr Cymru – Allowed revenue appendix
- PR19 final determinations: Dŵr Cymru – Accounting for past delivery additional information appendix
- PR19 final determinations: Dŵr Cymru – Cost efficiency additional information appendix
PR19 final determinations: Dŵr Cymru – Delivering outcomes for customers final decisions
PR19 final determinations: Dŵr Cymru – Accounting for past delivery final decisions
PR19 final determinations: Dŵr Cymru – Aligning risk and return final decisions
Hafren Dyfrdwy
Notification of the PR19 final determination of Price Controls for Hafren Dyfrdwy
PR19 final determinations: Hafren Dyfrdwy final determination (updated May 2020)
- PR19 final determinations: Hafren Dyfrdwy – Cost efficiency final determination appendix
- PR19 final determinations: Hafren Dyfrdwy – Outcomes performance commitment appendix
- PR19 final determinations: Hafren Dyfrdwy – Accounting for past delivery appendix
- PR19 final determinations: Hafren Dyfrdwy – Allowed revenue appendix
PR19 final determinations: Hafren Dyfrdwy – Delivering outcomes for customers final decisions
PR19 final determinations: Hafren Dyfrdwy – Accounting for past delivery final decisions
PR19 final determinations: Hafren Dyfrdwy – Aligning risk and return final decisions
Northumbrian Water
Notification of the PR19 final determination of Price Controls for Northumbrian Water
PR19 final determinations: Northumbrian Water final determination (updated April 2020)
- PR19 final determinations: Northumbrian Water – Cost efficiency final determination appendix
- PR19 final determinations: Northumbrian Water – Outcomes performance commitment appendix
- PR19 final determinations: Northumbrian Water – Accounting for past delivery appendix
- PR19 final determinations: Northumbrian Water – Allowed revenue appendix
PR19 final determinations: Northumbrian Water – Delivering outcomes for customers final decisions
PR19 final determinations: Northumbrian Water – Accounting for past delivery final decisions
PR19 final determinations: Northumbrian Water – Aligning risk and return final decisions
Portsmouth Water
Notification of the PR19 final determination of Price Controls for Portsmouth Water
PR19 final determinations: Portsmouth Water final determination (updated May 2020)
- PR19 final determinations: Portsmouth Water – Cost efficiency final determination appendix
- PR19 final determinations: Portsmouth Water – Outcomes performance commitment appendix
- PR19 final determinations: Portsmouth Water – Accounting for past delivery appendix
- PR19 final determinations: Portsmouth Water – Allowed revenue appendix
- PR19 final determinations: Portsmouth Water – Accounting for past delivery additional information appendix
PR19 final determinations: Portsmouth Water – Delivering outcomes for customers final decisions
PR19 final determinations: Portsmouth Water – Accounting for past delivery final decisions
PR19 final determinations: Portsmouth Water – Aligning risk and return final decisions
SES Water
Notification of the PR19 final determination of Price Controls for SES Water
PR19 final determinations: SES Water final determination (updated May 2020)
- PR19 final determinations: SES Water – Cost efficiency final determination appendix
- PR19 final determinations: SES Water – Outcomes performance commitment appendix
- PR19 final determinations: SES Water – Accounting for past delivery appendix
- PR19 final determinations: SES Water – Allowed revenue appendix
- PR19 final determinations: SES Water – Delivering outcomes for customers additional information appendix
PR19 final determinations: SES Water – Delivering outcomes for customers final decisions
PR19 final determinations: SES Water – Accounting for past delivery final decisions
PR19 final determinations: SES Water – Aligning risk and return final decisions
Severn Trent Water
Notification of the PR19 final determination of Price Controls for Severn Trent Water
PR19 final determinations: Severn Trent Water final determination (updated May 2020)
- PR19 final determinations: Severn Trent Water – Cost efficiency final determination appendix
- PR19 final determinations: Severn Trent Water – Outcomes performance commitment appendix
- PR19 final determinations: Severn Trent Water – Accounting for past delivery appendix
- PR19 final determinations: Severn Trent Water – Allowed revenue appendix
PR19 final determinations: Severn Trent Water – Delivering outcomes for customers final decisions
PR19 final determinations: Severn Trent Water – Accounting for past delivery final decisions
PR19 final determinations: Severn Trent Water – Aligning risk and return final decisions
South East Water
Notification of the PR19 final determination of Price Controls for South East Water
PR19 final determinations: South East Water final determination (updated May 2020)
- PR19 final determinations: South East Water – Cost efficiency final determination appendix
- PR19 final determinations: South East Water – Outcomes performance commitment appendix
- PR19 final determinations: South East Water – Accounting for past delivery appendix
- PR19 final determinations: South East Water – Allowed revenue appendix
- PR19 final determinations: South East Water – Cost efficiency additional information appendix
PR19 final determinations: South East Water – Delivering outcomes for customers final decisions
PR19 final determinations: South East Water – Accounting for past delivery final decisions
PR19 final determinations: South East Water – Aligning risk and return final decisions
South Staffs Water
Notification of the PR19 final determination of Price Controls for South Staffs Water
PR19 final determinations: South Staffs Water final determination (updated May 2020)
- PR19 final determinations: South Staffs Water – Cost efficiency final determination appendix
- PR19 final determinations: South Staffs Water – Outcomes performance commitment appendix
- PR19 final determinations: South Staffs Water – Accounting for past delivery appendix
- PR19 final determinations: South Staffs Water – Allowed revenue appendix
- PR19 final determinations: South Staffs Water – Accounting for past delivery additional information appendix
- PR19 final determinations: South Staffs Water – Delivering outcomes for customers additional information appendix
PR19 final determinations: South Staffs Water – Delivering outcomes for customers final decisions
PR19 final determinations: South Staffs Water – Accounting for past delivery final decisions
PR19 final determinations: South Staffs Water – Aligning risk and return final decisions
South West Water
Notification of the PR19 final determination of Price Controls for South West Water
PR19 final determinations: South West Water final determination (updated May 2020)
Letter from David Black to South West Water on PR24 adjustment (May 2020)
- PR19 final determinations: South West Water – Cost efficiency final determination appendix
- PR19 final determinations: South West Water – Outcomes performance commitment appendix
- PR19 final determinations: South West Water – Accounting for past delivery appendix
- PR19 final determinations: South West Water – Allowed revenue appendix
PR19 final determinations: South West Water – Delivering outcomes for customers final decisions
PR19 final determinations: South West Water – Accounting for past delivery final decisions
PR19 final determinations: South West Water – Aligning risk and return final decisions
Southern Water
Notification of the PR19 final determination of Price Controls for Southern Water
PR19 final determinations: Southern Water final determination
- PR19 final determinations: Southern Water – Cost efficiency final determination appendix (revised version published 18 November 2020)
- PR19 final determinations: Southern Water – Outcomes performance commitment appendix
- PR19 final determinations: Southern Water – Accounting for past delivery appendix
- PR19 final determinations: Southern Water – Allowed revenue appendix
PR19 final determinations: Southern Water – Delivering outcomes for customers final decisions
PR19 final determinations: Southern Water – Accounting for past delivery final decisions
PR19 final determinations: Southern Water – Aligning risk and return final decisions
Thames Water
Notification of the PR19 final determination of Price Controls for Thames Water
PR19 final determinations: Thames Water final determination (updated May 2020)
- PR19 final determinations: Thames Water – Cost efficiency final determination appendix (updated May 2020)
- PR19 final determinations: Thames Water – Outcomes performance commitment appendix
- PR19 final determinations: Thames Water – Accounting for past delivery appendix
- PR19 final determinations: Thames Water – Allowed revenue appendix
- PR19 final determinations: Thames Water – Accounting for past delivery additional information
- PR19 final determinations: Thames Water – Cost efficiency additional information appendix
- PR19 final determinations: Thames Water – Delivering outcomes for customers additional information appendix
- PR19 final determinations: Thames Water – Thames Tideway Tunnel performance commitments additional information appendix
PR19 final determinations: Thames Water – Delivering outcomes for customers final decisions
PR19 final determinations: Thames Water – Accounting for past delivery final decisions
PR19 final determinations: Thames Water – Aligning risk and return final decisions
United Utilities
Notification of the PR19 final determination of Price Controls for United Utilities
PR19 final determinations: United Utilities final determination (updated May 2020)
- PR19 final determinations: United Utilities – Cost efficiency final determination appendix
- PR19 final determinations: United Utilities – Outcomes performance commitment appendix
- PR19 final determinations: United Utilities – Accounting for past delivery appendix
- PR19 final determinations: United Utilities – Allowed revenue appendix
- PR19 final determinations: United Utilities – Cost efficiency additional information appendix
PR19 final determinations: United Utilities – Delivering outcomes for customers final decisions
PR19 final determinations: United Utilities – Accounting for past delivery final decisions
PR19 final determinations: United Utilities – Aligning risk and return final decisions
Wessex Water
Notification of the PR19 final determination of Price Controls for Wessex Water
PR19 final determinations: Wessex Water final determination (updated May 2020)
- PR19 final determinations: Wessex Water – Cost efficiency final determination appendix
- PR19 final determinations: Wessex Water – Outcomes performance commitment appendix
- PR19 final determinations: Wessex Water – Accounting for past delivery appendix
- PR19 final determinations: Wessex Water – Allowed revenue appendix
- PR19 final determinations: Wessex Water – Cost efficiency additional information appendix
PR19 final determinations: Wessex Water – Delivering outcomes for customers final decisions
PR19 final determinations: Wessex Water – Accounting for past delivery final decisions
PR19 final determinations: Wessex Water – Aligning risk and return final decisions
Yorkshire Water
Notification of the PR19 final determination of Price Controls for Yorkshire Water
PR19 final determinations: Yorkshire Water final determination (updated April 2020)
- PR19 final determinations: Yorkshire Water – Cost efficiency final determination appendix
- PR19 final determinations: Yorkshire Water – Outcomes performance commitment appendix
- PR19 final determinations: Yorkshire Water – Accounting for past delivery appendix
- PR19 final determinations: Yorkshire Water – Allowed revenue appendix
- PR19 final determinations: Yorkshire Water – Accounting for past delivery additional information appendix
- PR19 final determinations: Yorkshire Water – Delivering outcomes for customers additional information appendix
PR19 final determinations: Yorkshire Water – Delivering outcomes for customers final decisions
PR19 final determinations: Yorkshire Water – Accounting for past delivery final decisions
PR19 final determinations: Yorkshire Water – Aligning risk and return final decisions