1. Revised Tender Timescale for DN Interruption Arrangements
Distribution Workstream
23rd August 2007

2. Background Mod 0090 – Revised DN Interruption Arrangements
Ofgem decision 15 March 2007
Implementation Date 1 April 2008
New regime significantly different from existing regime
DNs determine interruption requirements three years ahead (e.g. Feb 2008 for 2011 onwards)
DNs publish interruption requirements (May 2008)
Users value interruption - bid into DN tender process
DNs select bids (offers) based on interruption requirements
Successful Users receive payment for being interruptible
Transition Arrangements in place to 2011 (based on existing arrangements)

3. Tender timescale – Mod 0090
Interruption Requirements published 1 May 08
Bid window opens (interruption offers) 2 June 08
Bid window closes June 08
Notification of successful bids 11 July 08
Apply for NTS Exit Capacity end July 08
Issue: Present timescales allow only short amount of time to conduct analysis on interruption bids and analyse and apply for NTS Exit Capacity

4. Proposal Bring forward tender timescales by one month:
Interruption Requirements published 1 April 08
Bid window opens (interruption offers) 1 May 08
Bid window closes May 08
Notification of successful bids 14 July 08
Apply for NTS Exit Capacity end July 08

5. Proposed Timescales Discuss at Workstreams Distribution 23 Aug 07
Transmission 6 Sept 07
Mod Panel Sept 07
DMR
Issued Sept 07
Close-out 18 Oct 07
FMR Oct 07
Mod Panel Nov 07
Ofgem Decision 1 Dec 07