1. AQ Review 2009

2. Team Structure @ August 2009 Dean Johnson Operations Manager Analytical Services Susan Prosser AQ Officer John Harris AQ Administrator Ian Bevan Account Assistant Nicky Kingham Account Assistant Andy Hinton Account Assistant

3. 2009 AQ Timetable / Progress DATE ACTION COMPLETE 26th March 2009Recalculation of Smaller Supply Point AQs  1st May 2009Recalculation of Larger Supply Point AQs  19th May 2009 First release: iGT (Weather correction and CV data)  19th – 30th May 2009 Domestic & Threshold Crosser T04 Files sent to Industry  1st June 2009 Domestic AQ Amendment Window Opens  12th June 2009 Start of BSSOQ Review Process  20th – 30th June 2009 I&C T04 Files sent to Shippers  1st July 2009 I&C Amendment Window Opens  1st July 2009 First Release of MOD81  10th July 2009BSSOQ files to Shippers  31st July 2009 AQ Appeal Window Closes  3rd August 2009 Second Release of MOD81  3rd August 2009 Second Release of OFGEM Report  13th August 2009 Last day for Shipper Amendment Files AQ & BSSOQ 20th August 2009 Final release: iGT (Weather correction and CV data) 10th - 14th September 2009 IX NRO/NRL files sent to Shippers (S91, S92, T68) 14th September 2009 AQ Appeal Window Opens 17th September 2009Run Emergency Contact Reports (732,000kWh+) 1st October 2009 Final AQ Implemented 1st October 2009Release Emergency Contact Reports (732,000 kWh+) 30th October 2009 Final Release of MOD81 30th October 2009Final OFGEM Report

4. What’s Next?  13 th August - Amendment Window closes. Last day for AQ and BSSOQ amendments.  10 th – 14 th September - NRO / NRL files sent to Shippers.  23 rd – 25 th September - System Catch up.  1 st October - Go Live. * For any updates or news, please refer to the xoserve website. (www.xoserve.com\AQ2009)