Transmission Workstream February 2009 Proposed revision to DN Interruption timeframes in Annual Interruption Invitation Transmission Workstream February 2009
Current rules DN requests Interruption offers, based on typical 3 year lead time to re-inforce its Network if interruption offers are not economic. UNC currently precludes DNs seeking Interruption offers in Annual Interruption window where lead time for re-inforcement is less than 3 years
Proposed change to UNC to allow this option Current UNC text G 6.2.2 In each Gas Year (Y) a DN Operator shall invite Interruption Offers by Users in respect of each of Gas Years Y+4 to Y+8 inclusive (each a separate Interruptible period) by an annual Interruption Invitation…. Proposed UNC text in Mod to be raised by NGN In each Gas Year (Y) a DN Operator shall invite Interruption Offers by Users in respect of each of Gas Years Y+4 to Y+8 inclusive, and may invite Interruption Offers in respect of Gas Years Y+1 to Y+3 inclusive (each a separate Interruptible period) by an annual Interruption Invitation….
Timeframe January 29th – Distribution workstream February 5th – Transmission workstream February 19th- UNC panel (consultation?) Implementation May 1st to assist in promoting 2009 Interruption Offers in June 2009.