1. Development Modification Proposal 0337: Introduction of a Inter-day Linepack Product – OPEN LETTER
Review Group August 2010
14th November 2010

2. Open Letter
National Grid to raise an Open Letter seeking industry views on their anticipated usage and the viability of Linepack Product to Users.
Open Letter consultation will be completed prior to commencing the Modification Proposal consultation period.
Open Letter will facilitate final development of the Proposal and inform the User Pays option included in the Modification Proposal.
Allows views of those unable to attend Workstream meetings to be captured prior to finalisation of the Modification Proposal.

3. Open Letter – Industry views sought on the following areas:
expected utilisation of Service
valuation of the service
reserve pricing
User Pays Options
impact on other products (OTC Trading, OCM, Storage Services)
Potential structure of any National Grid Inter-day Linepack release incentive
any other comments

4. Open Letter – consultation timetable
Final MP0337 Development Workstream meeting 14 Dec 10
Open Letter - for industry consultation 20 Dec 10
Issue Inter-day Linepack Methodology Paper 12 Jan 11
incorporate into MP0337
Open Letter – close out of representations 24 Jan 11
MP0337 Workstream report to Transmission Workstream
Incorporating relevant feedback from Open Letter 3 Feb 11
Panel review MP0337 Workstream Report 17 Feb 11
MP0337 Workstream Report to Panel
Include suggested legal text
Include relevant feedback from Open Letter
recommendation to consultation Mar 11
FMR to April Panel Apr 11
FMR issued to Ofgem for decision Apr 11