UK Water companies face significant operational and financial challenges in the regulatory period AMP8 (April 2025 to March 2030), Fitch Ratings says in a new report. To address these challenges, Fitch has adopted conservative cash flow forecasts, modelling a moderate reduction in the sector's debt capacity and highlighting performance outliers.
Fitch has tightened the sector's debt capacity thresholds, reducing net debt to regulated capital value (RCV) by 2% and increasing cash and nominal post-maintenance interest coverage ratios (PMICRs) by 0.1x, while maintaining the regulatory environment assessment at 'a-'.
This approach reflects the varying business and environmental risks directly in the cash flows, to better reflect variation in the operating models of water companies. As a result, the cash flow impacts will be more severe for weaker performers and more favourable for stronger ones. We forecast net cash outcome delivery incentives (ODI) penalties of GBP560 million (nominal) during AMP8, alongside fines from the Environment Agency or Ofwat of about GBP900 million.
“UK Water in AMP8: Navigating Challenges” provides insights into Fitch's assumptions for AMP8 forecasts, covering changes in sector debt capacity, treatment of mark-to-market liabilities, totex performance, cost of new debt, average pay-as-you-go and run-off rates, ODIs and inflation assumptions. Fitch also provides updated rating headroom charts.
