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Our cost change submission for 2026/27

Growth Unlocked: Water for the New Economy

We have submitted our proposals for Growth and Asset Health investment to Ofwat’s 2026 Cost Change process.

Documents
Main document – UUW26-02 Growth Unlocked Water for the New Economy (PDF 2.3MB opens in a new window)
Letters of support (PDF 5.1MB opens in a new window)
Growth case – UUW26-03 Growth in Water Resources - Enabling data centre growth (PDF 1.1MB opens in a new window)
Growth case – UUW26-05 Growth in Water Resources - clean energy growth in Ellesmere Port (PDF 1.2MB opens in a new window)
Growth case – UUW26-07 Growth at Sewage Treatment Works- WwTW capacity for New Homes (PDF 1.4MB opens in a new window)
Asset Health case - UUW26-12 Asset Health Business Case - Protecting Rapid Gravity Filters (PDF 1.9MB opens in a new window)
Asset Health case – UUW26-13 Asset Health Business Case - Enhancing Water Network Storage Assets (PDF 3.1MB opens in a new window)
Asset Health case – UUW26-14 Asset Health Business Case - Upgrading Boreholes (PDF 2.5MB opens in a new window)
Asset Health case – UUW26-15 Asset health Business Case - Supporting Gravity Sewers (PDF 2.4MB opens in a new window)
Asset Heath case – UUW26-16 Asset Health Business Case - Protecting Trickling Filters (PDF 2.8MB opens in a new window)
Data Tables
UUW - Cost change data tables 1 (.xlsx 44KB opens in a new window)
UUW - Cost change PCD Tables 1 (.xlsx 699KB opens in a new window)
UUW - Cost change PCD Tables 2 (.xlsx 40KB opens in a new window)