Single Meter Supply Points Discussion Points for Workstream September 2012

2 Population of meter points by SPAQ band National SPAQ (kWh)MP Count 0-73,20011, % 73, ,00028, , ,00018,23746, %66.31% 732, ,196,00017,661 2,196, ,860,0007,447 5,860, ,650,0002,649 14,650, ,300, ,300, ,600, >58,600, , %100.00% Total87,232

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, ,455 73, ,00019,8205,0221, , , ,0008,9964,0832, , , ,196,0005,1683,2282,3001,4851, ,29217,661 2,196, ,860,0001, ,3097,447 5,860, ,650, ,0762,649 14,650, ,300, ,300, ,600, >58,600, Total45,86614,9827,0443,8952,6641,6591,5041, ,71387,232

4 Form of System Capacity Charge

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 Bishop Stortford SPAQ 1,655,014 Mprn MPAQ Meter xx 195,998 MDA16 – xx 252,930 MDA16 – xx 111 G4 – xx 252,930 MDA16 – xx 77,348 U6R5 – xx 76,021 U6 – xx 77,348 U6R5 – xx 269 8C125 – xx 121 G4 – xx 87,177 MDA16 – xx 7,653 G4 – xx 434,571 U40 – xx 311,501 U65 – xx 1 U6R5 – xx 21,218 U6R5 – xx 1 U6R5 – xx 189,651 MDA25 – 25

7 Canada Life House SPAQ 1,396,057 Mprn MPAQ Meter 10279xx 18,042 U xx 15,575 U xx 22,138 U16 – xx 16,447 U6 – xx 58,430 U40 – xx 16,063 U6 – xx 18,372 U6 – xx 762,990 7M125 – xx 468,000 11M

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%