PR24 Performance commitment definitions

The outcomes framework for the 2024 price review (PR24) holds water companies to account for the outcomes that customers pay for and incentivises companies to go further where it is in the interests of customers and the environment. We do this by defining performance commitments (PCs) which measure the level of service provided for a particular outcome.

On this page we set out:

  • definitions of common performance commitments, which apply to all water companies subject to the outcome of the PR24 determination process; and
  • feedback on bespoke performance commitment proposals, which may apply to individual water companies.

Common performance commitment definitions

The table below provides links to definitions for common performance commitments which will be measured for all companies in England and/or Wales for the 2025-30 period.

Data submitted by companies should be subject to rigorous and high-quality assurance. This is critical to provide confidence to us, customers and other stakeholders that the information reported is accurate and reliable. Where we are concerned about the quality of data, we may intervene to protect customers and ensure that companies do not benefit from insufficient data quality.

We have refined the performance commitment definitions following on from comments received at final methodology and we identify any amendments we make within the definition’s version control. These performance commitment definitions are subject to the outcome of the PR24 determinations process.

With regard to third party materials, we expect to use the version of each relevant third party material that is in effect at the date of our PR24 final determinations, subject to the outcome of the PR24 determinations process. Therefore, the materials published here are subject to change.

No. Common performance commitment for PR24 Link to performance commitment (PC) definition Link to third party material
1 C-MeX Work is ongoing to review this definition prior to our draft determinations.
2 D-MeX Work is ongoing to review this definition prior to our draft determinations.
3 BR-MeX Work is ongoing to review this definition prior to our draft determinations.
4 Business customer experience in Wales Work is ongoing to review this definition prior to our draft determinations.
5 Water supply interruptions Water supply interruptions – PC definition
6 Compliance Risk Index (CRI) CRI – PC definition DWI Compliance Risk Index (CRI) definition
7 Customer contacts about water quality Customer contacts about water quality – PC definition DWI Information letter 01/2024
8 Internal sewer flooding Internal sewer flooding – PC definition
9 External sewer flooding External sewer flooding – PC definition
10 Biodiversity Biodiversity – PC definition Biodiversity Metric v4

 

11a Operational greenhouse gas emissions (water) PR24 operational greenhouse gas emissions performance commitment (water)
11b Operational greenhouse gas emissions (wastewater) PR24 operational greenhouse gas emissions performance commitment (wastewater)
12 Leakage Leakage – PC definition
13 Per capita consumption (PCC) Per capita consumption – PC definition
14 Business demand Business demand – PC definition
15 Total pollution incidents Total pollution incidents – PC definition Environment Agency Environmental Performance Assessment (EPA) methodology v9

Environment Agency Environmental Performance Assessment (EPA) methodology v8

Common Incident Classification Schemes (CICS) – Environment Agency

Incident Categorisation – Natural Resources Wales

Briefing note – Natural Resources Wales

16 Serious pollution incidents Serious pollution incidents – PC definition Environment Agency Environmental Performance Assessment (EPA) methodology v9

Environment Agency Environmental Performance Assessment (EPA) methodology v8

Common Incident Classification Schemes (CICS) – Environment Agency

Incident Categorisation – Natural Resources Wales

Briefing note – Natural Resources Wales

17 Discharge permit compliance Discharge permit compliance – PC definition Environment Agency Environmental Performance Assessment (EPA) methodology v9

Environment Agency Environmental Performance Assessment (EPA) methodology v8

18 Bathing water quality Bathing water quality – PC definition Bathing water regulations 2013
19 River water quality River water quality – PC definition
20 Storm overflows Storm overflows – PC definition
21 Mains repairs Mains repairs – PC definition
22 Unplanned outage Unplanned outage – PC definition
23 Sewer collapses Sewer collapses – PC definition

 

Bespoke performance commitment proposals

We signalled in chapter 5 of the PR24 final methodology that common performance commitments would be used for most areas of companies’ performance. We also said that bespoke performance commitments, in a small number, are appropriate where:

  • there are local circumstances that do not apply to most other companies and there is compelling evidence that a performance commitment is required to provide incentives to drive benefits for customers, communities and the environment, or
  • a company provides poor service on a common issue where other companies’ performance is generally adequate and the risk of performance deteriorating is low – such a performance commitment is likely to have underperformance payments only.

We asked companies to provide their bespoke performance commitment proposals with supporting evidence by 14 April 2023.

We reviewed their proposals and informed companies of our views and feedback in May and July 2023. These are as follows:

IN 23/02 Submission guidance for PR24 bespoke performance commitment definitions, February 2023

Reflections on initial assessment of bespoke performance commitments, May 2023

PR24: Assessment of bespoke performance commitment proposals, July 2023