1. Single Meter Supply Points Discussion Points for Workstream 0428 27 September 2012

2. 2 Population of meter points by SPAQ band National SPAQ (kWh)MP Count 0-73,20011,455 13.13% 73,201 - 293,00028,149 293,001 - 732,00018,23746,38653.18%66.31% 732,001 - 2,196,00017,661 2,196,001 - 5,860,0007,447 5,860,001 - 14,650,0002,649 14,650,001 - 29,300,000885 29,300,001 - 58,600,000390 >58,600,00135929,39133.69%100.00% Total87,232

3. 3 Population of meter points by SPAQ band and grouping size National 2 1)Multi meter sites with 'x' meter point reference numbers SPAQ (kWh) 2 MPRN 3 MPRN 4 MPRN 5 MPRN 6 MPRN 7 MPRN 8 MPRN 9 MPRN 10 MPRN >10 MPRNTotal 0-73,2009,5101,200324145114352436303711,455 73,201 - 293,00019,8205,0221,40449030614712812612058628,149 293,001 - 732,0008,9964,0832,08496050424522418012084118,237 732,001 - 2,196,0005,1683,2282,3001,4851,1107566323603302,29217,661 2,196,001 - 5,860,0001,4969066805804143363202161902,3097,447 5,860,001 - 14,650,0004923421441201567712072501,0762,649 14,650,001 - 29,300,000158844865423540910394885 29,300,001 - 58,600,0009245162518218020145390 >58,600,00113472442507836033359 Total45,86614,9827,0443,8952,6641,6591,5041,0358707,71387,232

4. 4 Form of System Capacity Charge

5. 5 Interesting points to note  SP < 73,200kWh  No interesting points of note!!  All MPRNs keep the same capacity rate aggregated or disaggregated  SP > 73,200kWh and < 293,000kWh  Average increase 18%  Largely due to capacity rate moving “up the step”  Where Supply Points are EUC WAR banded – Meter Point SOQ has been calculated using the same EUC WAR but corresponding with the lower AQ  SP > 293,000kWh and <732,000kWh  Average low (1%) but wide range between -24% and +34%  Largely due to move from a “WAR band” SOQ to EUC bands 1 & 2  Positives result from moving from High LF EUC bands to lower, default EUC bands - e.g. 42.0% to 31.3%  Negatives result from a counter-positional move  SP > 732,000kWh  Average, across the entire bands – 25% increase  All percentages based on a random sample

6. 6 Bishop Stortford SPAQ 1,655,014 Mprn MPAQ Meter 480500xx 195,998 MDA16 – 16 480487xx 252,930 MDA16 – 16 480488xx 111 G4 – 6 480487xx 252,930 MDA16 – 16 480489xx 77,348 U6R5 – 212 480490xx 76,021 U6 – 212 480489xx 77,348 U6R5 – 212 480503xx 269 8C125 – 800 480493xx 121 G4 – 6 480499xx 87,177 MDA16 – 16 480498xx 7,653 G4 – 6 480502xx 434,571 U40 – 1412 480501xx 311,501 U65 – 2296 480495xx 1 U6R5 – 212 480494xx 21,218 U6R5 – 212 480496xx 1 U6R5 – 212 480497xx 189,651 MDA25 – 25

7. 7 Canada Life House SPAQ 1,396,057 Mprn MPAQ Meter 10279xx 18,042 U6 - 212 10274xx 15,575 U6 - 212 10275xx 22,138 U16 – 565 10276xx 16,447 U6 – 212 10283xx 58,430 U40 – 1412 10278xx 16,063 U6 – 212 10277xx 18,372 U6 – 212 10282xx 762,990 7M125 – 7000 10284xx 468,000 11M125 - 11000

8. 8 Proposed Phased Approach  Immediately – no new configurations  Phase 1: Within 3 months of implementation  All aggregations with AQs up to 73,200kWh to be disaggregated  Accounts for 11.5k supply points or 13%  Phase 2: From 1st April 2014 to 1st July 2014  All aggregations with AQs above 73,200kWh & up to 732,000kWh to be disaggregated  Accounts for 46k supply points or 53%  Phase 3: From 1st April 2015 to 1st July 2015  All aggregations with AQs above 732,000kWh to be disaggregated  Accounts for remaining 29k supply points or 36%