Presentation is loading. Please wait.

Presentation is loading. Please wait.

Meter Read Validation 11 th August 2014. Background The meter read validation principles were developed under ‘The Settlement’ BRD and formed part of.

Similar presentations


Presentation on theme: "Meter Read Validation 11 th August 2014. Background The meter read validation principles were developed under ‘The Settlement’ BRD and formed part of."— Presentation transcript:

1 Meter Read Validation 11 th August 2014

2 Background The meter read validation principles were developed under ‘The Settlement’ BRD and formed part of Modification 0432. The new read validations and tolerances are documented in the ‘Uniform Network Code Validation Rules’ Concerns have been raised that the read validation tolerances may not be appropriate, particularly for Smaller Supply Points British Gas delivered a presentation at the 31 st January 2014 Project Nexus meeting highlighting some issues with the current proposed tolerances Further analysis was carried out by British Gas and by Xoserve The following slides provides proposals for changes to the tolerances

3 Summary of the Issues Identified The tolerances for SSPs in Class 4 will not allow for a read that produces a zero consumption to be accepted without the ‘Override Flag’ Market Breaker Tolerances for all Classes for larger Supply Meter Points appears too high, particularly for DM Supply Meter Points Where the AQ has reduced over a period of time due to low consumption and the Supply Meter Point starts consuming again, the current tolerances may prevent a read from being loaded –Scenario generally applies to SSP’s that are ‘vacant’ High consumptions due to the ‘Through the Zero’ count not being populated on the read file

4 Financial Values for Class 2 & 3 Daily Read Sites (Class 2 & 3) Calculated consumption compared to SOQ for each day Large sites within Band, Standard EUC AQ BandEUCs Absolute Lower limit Lower override limit Upper Override limit Absolute Upper LimitExample AQ Typical Load Factor Typical SOQ (non WAR Band) Min daily consumption - with override flag kWh Min daily consumption - without override flag kWh Max daily consumption - without override flag kWh Max daily consumption - with override flag kWh Daily Max Energy Value - without flag Daily Max Energy Value - with override flag Monthly Max Energy Value 0-73,20010% 73200 kWh700%70,000 30.0 639 0 - 73200 kWh 4,475 £ 1,464.00 £ 89.50 £ 2,685 73,201-732,0002-30%10%100%650%700,000 27.0 7,103 0 710 7,103 46,169 £ 142.06 £ 923.38 £ 27,701 732,000-2,196,00040%10%100%600%2,000,000 33.0 16,604 0 1,660 16,604 99,626 £ 332 £ 1,993 £ 59,776 2,196,000-29,300,0005-70%10%100%550%29,000,000 42.0 189,172 0 18,917 189,172 1,040,444 £ 3,783 £ 20,809 £ 624,266 29,300,000-58,600,00080%10%100%500%58,000,000 55.0 288,917 0 28,892 288,917 1,444,583 £ 5,778 £ 28,892 £ 866,750 >58,600,00090%10%100%450%100,000,000 67.0 408,914 0 40,891 408,914 1,840,114 £ 8,178 £ 36,802 £ 1,104,068 The figures in the following slides are indicative only, based on the latest version of the UNC Related document, and use estimated values for Load Factors (to calculate SOQs) and SAP prices. It is designed to illustrate the largest values which might be expected to pass within the market breaker upper tolerance test, however actual outcomes may differ in practice.

5 Financial Values for Class 4 Non Daily Read Sites (Class 4) Calculated consumption compared to AQ/365 per day Large sites within Band (EUC is irrelevant) AQ BandEUCs Absolute Lower limit Lower override limit Upper Override limit Absolute Upper LimitExample AQAQ/365 Min daily consumption - with override flag kWh Min daily consumption - without override flag kWh Max daily consumption - without override flag kWh Max daily consumption - with override flag kWh Daily Max Energy Value - without flag Daily Max Energy Value - with override flag Monthly Max Energy Value 0-73,20010%20%300%700%70,0001920 38 575 1,342 £ 12 £ 27 £ 805 73,201-732,0002-30%20%250%650%700,0001,9180 384 4,795 12,466 £ 96 £ 249 £ 7,480 732,000-2,196,00040%20%200%600%2,000,0005,4790 1,096 10,959 32,877 £ 219 £ 658 £ 19,726 2,196,000-29,300,0005-70%20%150%550%29,000,00079,4520 15,890 119,178 436,986 £ 2,384 £ 8,740 £ 262,192 29,300,000-58,600,00080%20%100%500%58,000,000158,9040 31,781 158,904 794,521 £ 3,178 £ 15,890 £ 476,713 >58,600,00090%20%100%450%100,000,000273,9730 54,795 273,973 1,232,877 £ 5,479 £ 24,658 £ 739,726 The figures in the following slides are indicative only, based on the latest version of the UNC Related document, and use estimated values for Load Factors (to calculate SOQs) and SAP prices. It is designed to illustrate the largest values which might be expected to pass within the market breaker upper tolerance test, however actual outcomes may differ in practice.

6 Xoserve Recommendations For all Classes and all Supply Points allow zero consumption reads to be submitted without the need of the Override Flag Lower the Market Breaker upper tolerances, especially for Class 2 as currently allows a daily read to be accepted that is 7 x the SOQ For Class 4 SSPs have a Override Read Tolerance high enough to allow reads in following period of very low or zero consumption Make the ‘Through the Zero’ (TTZ) count mandatory on all read files

7 Tolerances for Daily Reads Documented in the Settlement BRD Lower AQ band (kWh) Upper AQ band (kWh) Tolerances where read will be accepted Read Accepted if submitted with an Override Flag ‘Market Breaker’ Read Rejected 073,2000 - 73,200 kWh0 – 699% of SOQ 700% of SOQ 73,201732,00010% - 100% of SOQ 0 - 9% or 101% - 649% of SOQ 650% of SOQ 732,0012,196,00010% - 100% of SOQ 0 - 9% or 101% - 599% of SOQ 600% of SOQ 2,196,00129,300,00010% - 100% of SOQ 0 - 9% or 101% - 549% of SOQ 550% of SOQ 29,300,00158,600,00010% - 100% of SOQ 0 - 9% or 101% - 499% of SOQ 500% of SOQ 58,600,001and above10% - 100% of SOQ 0 - 9% or 101% - 449% of SOQ 450% of SOQ Tolerances for a daily read received following an actual read

8 Proposed Tolerances for Daily Reads (Classes 1, 2 & 3) Lower AQ band (kWh) Upper AQ band (kWh) Tolerances where read will be accepted Read Accepted if submitted with an Override Flag ‘Market Breaker’ Read Rejected 073,2000% - 130% of SOQ131% - 299% of SOQ> 300% of SOQ 73,201732,0000% - 130% of SOQ131% - 299% of SOQ> 300% of SOQ 732,0012,196,0000% - 130% of SOQ131% - 249% of SOQ> 250% of SOQ 2,196,00129,300,0000% - 130% of SOQ131% - 249% of SOQ> 250% of SOQ 29,300,00158,600,0000% - 130% of SOQ131% - 199% of SOQ> 200% of SOQ 58,600,001and above0% - 130% of SOQ131% - 199% of SOQ> 200% of SOQ Tolerances for a daily read received following an actual read

9 Tolerances for Periodic Read (Class 4) Documented in the Settlement BRD Lower AQ band (kWh) Upper AQ band (kWh) Tolerances where read will be accepted Read Accepted if submitted with an Override Flag ‘Market Breaker’ Read Rejected 073,200 10% - 300% of AQ/365 x no. of days 0 - 19% or 301% - 699% of AQ/365 x no. of days 0 – 700% of AQ/365 x no. of days 73,201732,000 10% - 250% of AQ/365 x no. of days 0 - 19% or 251% - 649% of AQ/365 x no. of days 0 - 650% of AQ/365 x no. of days 732,0012,196,000 10% - 200% of AQ/365 x no. of days 0 - 19% or 201% - 599% of AQ/365 x no. of days 0 - 600% of AQ/365 x no. of days 2,196,00129,300,000 10% - 150% of AQ/365 x no. of days 0 - 19% or 151% - 549% of AQ/365 x no. of days 0 - 550% of AQ/365 x no. of days 29,300,00158,600,000 10% - 100% of AQ/365 x no. of days 0 - 19% or 101% - 499% of AQ/365 x no. of days 0 - 500% of AQ/365 x no. of days 58,600,001and above 10% - 100% of AQ/365 x no. of days 0 - 19% or 101% - 449% of AQ/365 x no. of days 0 - 450% of AQ/365 x no. of days Tolerances for a periodic read received following an actual read

10 Proposed Tolerances for a Periodic Read (Class 4) Lower AQ band (kWh) Upper AQ band (kWh) Tolerances where read will be accepted Read Accepted if submitted with an Override Flag ‘Market Breaker’ Read Rejected 073,200 0% - 300% of AQ/365 x no. of days 301% - 599% of AQ/365 x no. of days 0 – 600% of AQ/365 x no. of days 73,201732,000 0% - 250% of AQ/365 x no. of days 251% - 549% of AQ/365 x no. of days 0 - 550% of AQ/365 x no. of days 732,0012,196,000 0% - 200% of AQ/365 x no. of days 201% - 499% of AQ/365 x no. of days 0 - 500% of AQ/365 x no. of days 2,196,00129,300,000 0% - 150% of AQ/365 x no. of days 151% - 449% of AQ/365 x no. of days 0 - 450% of AQ/365 x no. of days 29,300,00158,600,000 0% - 100% of AQ/365 x no. of days 101% - 399% of AQ/365 x no. of days 0 - 400% of AQ/365 x no. of days 58,600,001and above 0% - 100% of AQ/365 x no. of days 101% - 349% of AQ/365 x no. of days 0 - 350% of AQ/365 x no. of days Tolerances for a periodic read received following an actual read

11 Next Steps Shippers to check the proposed tolerances on a sample of Meter Points At the September meeting review the tolerances and results of Shipper analysis Update tolerances where required Update Settlement BRD Update UNC Validation Rules and submit for approval


Download ppt "Meter Read Validation 11 th August 2014. Background The meter read validation principles were developed under ‘The Settlement’ BRD and formed part of."

Similar presentations


Ads by Google