Unplanned outage

We need our water treatment equipment, as well as our pipe network, to be reliable.

Regular maintenance and improvements to our equipment means they are less likely to break down unexpectedly. We want to prevent sudden or unexpected outages because they impact you, our customers, particularly when they happen at peak times.

This performance commitment measures unplanned outages that exceed 24 hours in duration of our total water production capacity. The lower the percentage, the better. We also report separately on outages caused by planned works.

In 2025/26 we had a challenging target to keep outages lower than 3.23 per cent of our total water production capacity.

How have we performed?

Over the reporting year 2025/26, our unplanned outage level was 3.16 per cent, exceeding our target of 3.23 per cent. We have earned a £0.07 million reward payment for this measure.