Peer comparison league tables
These tables take trading parties and arranges them based on their performance against the Market and Operational Performance Standards (MPS and OPS). To make the data more meaningful, you will see that we have segmented trading parties into five groups and have used a clear colour-coding to indicate who sits in the upper and lower quartiles of trading party performance.
Some trading parties may have significantly higher volumes of meter reads than expected, often due to the submission of AMR reads.
During this period we have seen the restrictions on customers and trading parties, alike as a result of COVID-19, impact on the performance of market standards: some customer premises have become permanently vacant while others, although remaining open, have imposed restrictions on the reading of meters. In some cases the level of completed tasks shown in these tables has more than halved.
It is important to recognise this when viewing the tables and acknowledging that whilst the data is accurate, it does not reflect the market in BAU.
Note: As of March 2020, all SPIDs previously associated with Affinity for Business were transferred to Castle Water. In FY 19-20 Affinity for Business were ranked 2nd.
Note: First Business Water were previously in the category Retailers with < 5,000 SPIDs.
Note: As of Ocotober 2019, Business Stream and Yorkshire Water Services merged into one entity and this is reflected in the table above.
Note: Tor Water ceased to trade in February 2020 but in FY 19-20 were ranked 5th.
Note: First Business Water were in this category for FY 19-20 and ranked 7th but have since moved to Retailers > 5k SPIDs.
Note: Yu Water have now been included in the tables but were not shown previously due to low task volumes.
Note: Conserv Aqua Ltd have been excluded as they only joined the market in April 2020 and have only reported against MPS since September 2020.
Note: Dwr Cymru Welsh Water, Hafren Dyfrdwy, Icosa Water Services, Independent Water Networks, Leep Water Networks, SSE Water and Veolia have been excluded due to low task volumes.
Note: Severn Trent Services, a sewerage-only company, has been excluded due to low task volumes.
NOTE: Unlike MPS, all OPS data is self reported and is not sourced through CMOS
Trade effluent sampling tasks, G4a and G4b, have been excluded from the 'Total tasks completed' column due to their high volumes.
Dwr Cymru Welsh Water have been excluded due to low task volume however it should be noted that they continue to achieve 100 per cent task success since May 2018.
DwrCymru and DeeValley have been excluded due to low volumes.
Note: The following Wholesalers have been excluded: Dwr Cymru Welsh Water, Independent Water Networks, Leep Water Networks, Severn Trent Services, SSE Water and Veolia Water Projects.
Note: The Retailer and Wholesaler arms of Hafren Dyfrdwy and Dwr Cymru Welsh Water have been excluded.