Annual performance reports

Our Annual Performance Report contains information that allows customers and stakeholders to review our performance and to make comparisons with other companies in the sector.

It also provides specific information on the progress we have made on the delivery of customer outcomes and service levels and on our financial performance (including detailed revenue and cost information).

We are required to publish a single Annual Performance Report in a format prescribed by Ofwat.

If you require the documents in an alternative format like large print, or braille please call our Specialist Support team on 0330 0413394 who will arrange for a copy in a format that works for you.

We welcome feedback on our Annual Performance Report as this helps us to enhance the quality and accessibility of our data and documentation. Please send your thoughts and suggestions to RegulatoryData&Reporting@dwrcymru.com.

The APR data tables are licensed under a Creative Commons Attribution 4.0 International License.

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Annual performance reports

Annual Performance Report 2024-25

Main Documents

APR-Tables-parts-1-to-11-excluding-part-3

APR-Tables-part-3

APR-Overview

APR-Part-1

APR-Part-2

APR-Part-3

APR-Parts-4-to-11

Board-Statements

Accounting-Methodology-Statement

Additional Reporting Requirements

Water-Catchment-Report

WSH - Ft4 Surface Water Removed From Sewers - Benefits Assessment

WSH -Wt8 Lead Pipes Replaced - Benefits Assessment

WSH - Ft10 Community Education - Benefits Assessment

WSH - Ft11 Visitors to Recreational Facilities - Benefits Assessment

PR19 Blind Year Submission

Revenue Forecasting Incentive RFI model

Cost of new debt model

Tax model

Totex model

Developer services model

RPI-CPIH wedge model

Bioresources model

Residential retail model

Business retail model

Land sales model

ODI differences model

In-period adjustments model

RCV adjustments feeder model

Revenue adjustments feeder model

Blind Year Submission Tables

PR19 Blind Year Submission commentary

Data Consolidation

Open-data-rationale

Consolidated-PC-Data

CSVConsolidated-PC-Data

CSVConsolidated-PC-MetaData

Consolidated APR Data

CSVConsolidated APR Data

CSVConsolidated APR Metadata

Previous Annual Performance Reports

Data Consolidation

Consolidated APR Data

CSVConsolidated APR Data

CSVConsolidated APR MetaData

Consolidated-PC-Data

CSVConsolidated-PC-Data

CSVConsolidated-PC-MetaData

2023-2024

APR-Overview

APR-Part-1-v2

APR-Part-2

APR-Part-3

APR-Parts-4-to-11-v2

APR-Tables-part-3

APR- Tables-parts-1-to-11-excluding-part-3-v7

Board-Statements

Accounting-Methodology-Statement

Data-Assurance-Summary

In-period-adjustment-model

In-Period-ODI-submission

Open-data-rationale

Water-Catchment-Report

2023-2024 Archive

APR-Part-1

APR-Parts-4-to-11

APR-Tables-parts-1-to-11-excluding-part-3

APR- Tables-parts-1-to-11-excluding-part-3-v2

APR- Tables-parts-1-to-11-excluding-part-3-v3

APR- Tables-parts-1-to-11-excluding-part-3-v4

APR- Tables-parts-1-to-11-excluding-part-3-v5

APR- Tables-parts-1-to-11-excluding-part-3-v6

2022-2023

APR-Overview

APR-Part-1