About Consultation
This document consults on our implementation of the Outturn Adjustment Mechanism (OAM). This is a mechanism we introduced at price control 2024 (PR24) to provide protection for customers and companies against the potential for miscalibration of the outcomes package.
Responding to this consultation
We welcome any comments on this consultation. Please respond by email to [email protected] or post it to:
c/o Thomas Elliott, Consultation response
Ofwat, Centre City Tower,
7 Hill Street, Birmingham. B5 4UA.
The closing date for this consultation is 5pm on 10 September 2026. If you wish to discuss any aspect of this consultation, please contact Alex Whitmarsh by email at [email protected].
We intend to publish responses to this consultation on our website at www.ofwat.gov.uk. Subject to the following, by providing a response to this consultation you are deemed to consent to its publication.
If you think that any of the information in your response should not be disclosed (for example, because you consider it to be commercially sensitive), an automatic or generalised confidentiality disclaimer will not, of itself, be regarded as sufficient. You should identify specific information and explain in each case why it should not be disclosed [and provide a redacted version of your response], which we will consider when deciding what information to publish. At a minimum, we would expect to publish the name of all organisations that provide a written response, even where there are legitimate reasons why the contents of those written responses remain confidential.
In relation to personal data, you have the right to object to our publication of the personal information that you disclose to us in submitting your response (for example, your name or contact details). If you do not want us to publish specific personal information that would enable you to be identified, our privacy policy explains the basis on which you can object to its processing and provides further information on how we process personal data.
In addition to our ability to disclose information pursuant to the Water Industry Act 1991, information provided in response to this [type of document], including personal data, may be published or disclosed in accordance with legislation on access to information – primarily the Freedom of Information Act 2000 (FoIA), the Environmental Information Regulations 2004 (EIR) and applicable data protection laws.
Please be aware that, under the FoIA and the EIR, there are statutory Codes of Practice which deal, among other things, with obligations of confidence. If we receive a request for disclosure of information which you have asked us not to disclose, we will take full account of your explanation, but we cannot give an assurance that we can maintain confidentiality in all circumstances.