1. 10 September 2009 energynetworks.org 1 Common Methodology Group Work PRESENTED BY OLIVER DAY Common Distribution Charging Methodology Impact Analysis

2. 10 September 2009 Caveats… Based on individual DNO averages Need to consider your typical usage Common model – DNO specific inputs Different end user behaviour Different costs Current DNO models may be very different, resulting in sometimes opposing starting positions

3. 10 September 2009 energynetworks.org Domestic Unrestricted energynetworks.org 3

4. 10 September 2009 energynetworks.org Domestic Two Rate energynetworks.org 4

5. 10 September 2009 energynetworks.org Small Non Domestic Unrestricted energynetworks.org 5

6. 10 September 2009 energynetworks.org Small Non Domestic Two Rate energynetworks.org 6

7. 10 September 2009 energynetworks.org LV Medium Non Domestic energynetworks.org 7

8. 10 September 2009 energynetworks.org LV HH Metered energynetworks.org 8

9. 10 September 2009 energynetworks.org HV HH Metered energynetworks.org 9

10. 10 September 2009 energynetworks.org NHH UMS energynetworks.org 10

11. 10 September 2009 energynetworks.org HH UMS energynetworks.org 11

12. 10 September 2009 LDNO Charges Charges based on end user tariffs IDNO charged end user tariff with discount Discount based on IDNO boundary voltage Discounts applied using ‘portfolio’ approach

13. 10 September 2009 energynetworks.org LDNO LV: LV End User Discount energynetworks.org 13

14. 10 September 2009 energynetworks.org LDNO HV: End User Discount energynetworks.org 14

15. 10 September 2009 Time bands 3 time bands: Green, Amber and Red Vary from DNO to DNO Reflect the DNO’s network usage Weekday and weekend

16. 10 September 2009 energynetworks.org Weekday energynetworks.org 16 * EDF’s time bands are in GMT for weekdays, all other DNOs are in UK clock time

17. 10 September 2009 energynetworks.org Weekend energynetworks.org 17 All weekend time bands are in UK clock time