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Background Under MRTU, reliability requirements that cannot be resolved through the CAISO market software will be met by manually issued Exceptional Dispatches. Units receiving Exceptional Dispatches for energy will be paid the higher of their bid price or the Locational Marginal Price (LMP). The CAISO expects that the frequency and duration of Exceptional Dispatches will be very limited under MRTU. However, the potential cost of such Exceptional Dispatches could be significant if generators receiving such dispatches are able to exercise local or temporary market power by submitting extremely high energy bids. Therefore, the CAISO is considering modifications to the MRTU to mitigate the potential for market power by units receiving Exceptional Dispatches for energy.

Outcome Pending closure of initiative

Process

Relevant Market Notices

Exceptional Dispatch Tariff Language CDWR-SWP Additional Comments on Exceptional Dispatch Draft MRTU Tariff Language pdf 77K | Abstract | 06/20/2008 08:55 Exceptional Dispatch Draft MRTU Tariff Language doc 76K | Abstract | 06/03/2008 12:45 CDWR-SWP Comments on Exceptional Dispatch Draft MRTU Tariff Language pdf 93K | Abstract | 06/16/2008 09:44 CPUC Comments on Exceptional Dispatch Draft MRTU Tariff Language pdf 107K | Abstract | 06/16/2008 14:28 Dynegy Comments on Exceptional Dispatch Draft MRTU Tariff Language pdf 66K | Abstract | 06/16/2008 09:43 PG&E Comments on Exceptional Dispatch Draft MRTU Tariff Language pdf 79K | Abstract | 06/16/2008 09:46 SCE Comments on Exceptional Dispatch Draft MRTU Tariff Language pdf 76K | Abstract | 06/16/2008 09:42 WPTF Comments on Exceptional Dispatch Draft MRTU Tariff Language pdf 50K | Abstract | 06/16/2008 14:27

Exceptional Dispatch: Final Proposal Final Proposal - Options for Market Power Mitigation and Supplemental Pricing of Exceptional Dispatch pdf 170K | Abstract | 05/13/2008 13:50

Stakeholders Comments on Straw Proposal 24-Apr-2008 CPUC Comments on Exceptional Dispatch Straw Proposal 24-Apr-2008 pdf 92K | Abstract | 04/28/2008 12:45 Dynegy Comments on Exceptional Dispatch Straw Proposal 24-Apr-2008 pdf 11K | Abstract | 04/28/2008 12:48 PG&E Comments on Exceptional Dispatch Straw Proposal 24-Apr-2008 pdf 92K | Abstract | 04/28/2008 12:50 Reliant Comments on Exceptional Dispatch Straw Proposal 24-Apr-2008 pdf 196K | Abstract | 04/28/2008 12:52 SCE Comments on Exceptional Dispatch Straw Proposal 24-Apr-2008 pdf 83K | Abstract | 04/28/2008 12:54 Six Cities Comments on Exceptional Dispatch Straw Proposal 24-Apr-2008 pdf 66K | Abstract | 04/28/2008 12:55 WPTF Comments on Exceptional Dispatch Straw Proposal 24-Apr-2008 pdf 257K | Abstract | 04/28/2008 13:06

Exceptional Dispatch: Straw Proposal Exceptional Dispatch Straw Proposal Comment Template 24-Apr-2008 doc 35K | Abstract | 04/18/2008 14:58 Straw Proposal - Options for Market Power Mitigation and Supplemental Pricing - CLEAN pdf 154K | Abstract | 04/14/2008 15:14 Straw Proposal - Options for Market Power Mitigation and Supplemental Pricing - REDLINE pdf 246K | Abstract | 04/14/2008 15:16

Stakeholder / MSC Chair - Frank Wolak Conference Call 17-Apr-2008 Agenda - Stakeholder / MSC Chair Frank Wolak Conference Call 17-Apr-2008 pdf 25K | Abstract | 04/16/2008 08:58

Stakeholder Meeting 15-Apr-2008 Agenda - Exceptional Dispatch Stakeholder Meeting - 15-Apr-2008 pdf 75K | Abstract | 04/14/2008 17:23 Presentation - Exceptional Dispatch Stakeholder Meeting - 15-Apr-2008 pdf 586K | Abstract | 04/14/2008 17:49

Joint Stakeholder / MSC Meeting 11-Apr-2008 Final Agenda - MSC / Stakeholder Meeting 11-Apr-2008 pdf 105K | Abstract | 04/09/2008 11:22 Presentation - Exceptional Dispatch 11-Apr-2008 pdf 582K | Abstract | 04/09/2008 12:59

Exceptional Dispatch: Mitigation and Pricing Options White Paper: Options for Market Power Mitigation and Supplemental Pricing pdf 140K | Abstract | 03/21/2008 14:37 Exceptional Dispatch: Supplement to Mitigation Option pdf 24K | Abstract | 04/01/2008 13:43

Stakeholder Comments 04-Apr-2008 Calpine Comments on Exceptional Dispatch White Paper 04-Apr-2008 pdf 110K | Abstract | 04/08/2008 11:00 CPUC Comments on Exceptional Dispatch White Paper 04-Apr-2008 pdf 93K | Abstract | 04/08/2008 15:09 Dynegy Comments on Exceptional Dispatch White Paper 04-Apr-2008 pdf 96K | Abstract | 04/08/2008 11:02 PG&E Comments on Exceptional Dispatch White Paper 04-Apr-2008 pdf 89K | Abstract | 04/08/2008 11:04 Reliant Comments on Exceptional Dispatch White Paper 04-Apr-2008 pdf 103K | Abstract | 04/11/2008 15:10 SCE Comments on Exceptional Dispatch White Paper 04-Apr-2008 pdf 99K | Abstract | 04/08/2008 11:06 Southern Cities Comments on Exceptional Dispatch White Paper 04-Apr-2008 pdf 65K | Abstract | 04/08/2008 11:09 WPTF Comments on Exceptional Dispatch White Paper 04-Apr-2008 pdf 147K | Abstract | 04/08/2008 11:10

Stakeholder Conference Call 28-Mar-2008 Agenda - Stakeholder Conference Call 28-Mar-2008 pdf 35K | Abstract | 03/21/2008 13:02 Presentation - Exceptional Dispatch 28-Mar-2008 pdf 587K | Abstract | 03/27/2008 13:54 Exceptional Dispatch Comments Template - Issues Paper 21-Mar-2008 doc 34K | Abstract | 03/28/2008 08:35

Proposal Revised Proposal for Mitigation of Potential Market Power under MRTU Exceptional Dispatch Provisions pdf 75K | Abstract | 01/17/2008 07:50 Mitigation of Potential Market Power under MRTU Exceptional Dispatch Provisions pdf 150K | Abstract | 12/03/2007 10:09

Stakeholder Comments 14-Jan-2008 Comments on Mitigation Rule for Exceptional Dispatches under MRTU pdf 98K | Abstract | 01/16/2008 12:16

Stakeholder Conference Call - Exceptional Dispatches under MRTU 07-Jan-2008 Agenda - Mitigation Rule for Exceptional Dispatches under MRTU 07-Jan-2008 pdf 64K | Abstract | 01/03/2008 16:42 Summary and Initial Response to Stakeholder Comments pdf 179K | Abstract | 01/03/2008 16:44 Pacific Gas & Electric Comments on Exceptional Dispatch 12-Dec-2007 pdf 80K | Abstract | 01/03/2008 16:53

Stakeholder Comments 12-Dec-2007 Constellation, NRG, and Reliant Energy Comments on Exceptional Dispatch 12-Dec-2007 pdf 90K | Abstract | 12/19/2007 08:32 SCE Comments on Exceptional Dispatch 12-Dec-2007 pdf 26K | Abstract | 12/19/2007 08:36 SWP Comments on Exceptional Dispatch 12-Dec-2007 pdf 63K | Abstract | 12/19/2007 08:30 WPTF Comments on Exceptional Dispatch 12-Dec-2007 pdf 131K | Abstract | 12/19/2007 08:34