Modification 0282 Action 002 Update Joanna Ferguson

Assumptions Used NGN region has approx 6.7m inhabitants NGN has approx 2.4m domestic customers Assuming household occupancy of 2.28 Suggests 2.9m houses in NGN region Therefore estimated connection level of 82% Therefore of the 300k unoccupied homes quoted in mod 282, approx 245k will have a gas connection

Prices Assumed Weighted average UK unit rates as at 1 April 2010 prices: LDZ Capacity (p/peak day kWh per day) 0.1362 LDZ Commodity (p/kWh) 0.0214 Customer Charge 0.0752 Average UK Load Factor 34.1% Average domestic consumption 20,000KWh Therefore average SOQ 161KWh

Financial Impact Assume 100% take up nationally of 282 proposal for 12 months LDZ Capacity per household £ 79.93 LDZ Commodity per household £ 4.28 Customer charge per household £ 44.13 Total per household £ 128.34 times 245k vacant homes £ 31,445k 2010/11 Allowed Revenue forecast £ 2,835,800k % attributable to vacant homes 1.1%

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