Revenue correction mechanism
- Anglian
- Dŵr Cymru
- Northumbrian
- Severn Trent
- Southern
- South West
- Thames
- United Utilities
- Wessex
- Yorkshire
- Affinity (Central)
- Affinity (East)
- Affinity (Southeast)
- Bristol
- Dee Valley
- Portsmouth
- Sembcorp Bournemouth
- South East
- South Staffs (Cambridge)
- South Staffs (South Staffs)
- Sutton & East Surrey
Capex incentive scheme
- Anglian
- Dŵr Cymru
- Northumbrian
- Severn Trent
- Southern
- South West
- Thames
- United Utilities
- Wessex
- Yorkshire
- Affinity (Central)
- Affinity (East)
- Affinity (Southeast)
- Bristol
- Dee Valley
- Portsmouth
- Sembcorp Bournemouth
- South East
- South Staffs (Cambridge)
- South Staffs (South Staffs)
- Sutton & East Surrey
Opex outperformance
- Anglian
- Dŵr Cymru
- Northumbrian
- Severn Trent
- Southern
- South West
- Thames
- United Utilities
- Wessex
- Yorkshire
- Affinity
- Bristol
- Dee Valley
- Portsmouth
- Sembcorp Bournemouth
- South East
- South Staffordshire
- Sutton & East Surrey
Regulatory capital value midnight adjustment
- Anglian
- Dŵr Cymru
- Northumbrian
- Severn Trent
- Southern
- South West
- Thames
- United Utilities
- Wessex
- Yorkshire
- Affinity
- Bristol
- Dee Valley
- Portsmouth
- Sembcorp Bournemouth
- South East
- South Staffs
- Sutton & East Surrey
Serviceability shortfall