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Water supply interruption

Interruptions to supply
Interruptions to supply - The average minutes of supply lost per property from interruptions that are longer than three hours.

Ofwat has set an industry wide target representing upper quartile performance. In 2015-16, the target was 21.3, it then tightened to the upper quartile of 12 minutes in 2017-18.

A deadband applies to this performance commitment such that in any year we exceed the deadband we will refund customers £41.9k per additional minute per property; and if in any year we beat the upper quartile performance of 12 minutes we receive an incentive payment of £6.4k for every additional minute per property.

In 2017-18 we achieved 12.3 minutes, an improvement on our past performance but not quite sufficient to meet the tightened target resulting in an underperformance payment. Despite this, we have made considerable improvements which gives confidence we will meet the target for the rest of the AMP.