Our Annual Performance Report
Here you can view or download our latest Annual Performance Report. It includes both our financial and non-financial performance.
Report overview
This report sets out the performance in 2024–25 of Southern Water’s regulated business, as defined under our Licence (the licence to operate as a water and sewerage undertaker). This is both in financial terms and against our outcome and performance commitments.
We had 47 performance commitments agreed as part of the price review process from 2020-25. Over the past five years, we’ve seen a significant improvement to our performance, but we didn’t meet all the targets Ofwat set within its Final Determination (the basis on which our plan for 2020–25 was approved).
Statistics from the annual performance report
Despite setbacks in some areas, we've also seen small improvements in performance across a large number of areas over the past year.
47%
Reduced internal sewer flooding by 47%
9%
Reduced in-year leakage by 9%
28%
Increased number of customers on our Priority Services Register by 28%
43%
Unplanned outage has been reduced by 43%
Statistics from the annual performance report
Despite setbacks in some areas, we've also seen small improvements in performance across a large number of areas over the past year.
47%
Reduced internal sewer flooding by 47%
9%
Reduced in-year leakage by 9%
28%
Increased number of customers on our Priority Services Register by 28%
43%
Unplanned outage has been reduced by 43%
Lawrence Gosden, Chief Executive Officer.
"Our Turnaround Plan set out to deliver a short sharp ambitious improvement by 2025, particularly in terms of our environmental performance. It includes four clear outcomes that we promised to deliver, improving our service to customers and the environment."
Keith Lough, Chair
"Our vision is to create a resilient water future for our customers in the South East. We now want to share what this means and what we’re planning to achieve."
