Amendment 72 - Potential Revisions	Back to Previous Page  Download Adobe Reader

Background

In October 2005, the California ISO (CAISO) filed Tariff Amendment 72, which required Scheduling Coordinators (SCs) to submit day-ahead schedules equal to at least 95% of their forecast demand for each hour of the next day. The 95% day-ahead scheduling requirement was designed to enhance reliability and reduce the need for the CAISO to take actions to protect against underscheduling, such as requiring additional capacity to be on-line through Must-Offer Waiver denials. Overall compliance with the 95% day-ahead scheduling requirement has been extremely high since spring 2006, particularly during peak hours. However, some participants and CAISO operations staff have expressed concerns about the impacts and difficulty of complying with the 95% scheduling requirement, particularly during off-peak and weekend hours. In response to these concerns, the CAISO initiated a stakeholder process to identify and consider potential refinements to Amendment 72.

Outcome

The CAISO has finalized its recommendation, which will be presented for approval to the CAISO Board of Governors on January 25, 2007.  The final recommendations are summarized in the white paper entitled, Recommended Modifications to Amendment 72.

CAISO Market Notice: Amendment 72 - Posting of Recommended Modifications html 10K | Abstract | 01/12/2007 13:47

February 23, 2007 Load Scheduling Amendment to the ISO Tariff in Docket No. ER07-569-000

Process

Draft Tariff Language for Load Scheduling Requirements Draft Tariff Language - Load Scheduling Requirements and Demand Forecasting doc 69K | Abstract | 02/06/2007 08:54 AREM Comments on Draft Revisions to Amendment 72 pdf 77K | Abstract | 02/13/2007 08:58 PGE Comments on Draft Revisions to Amendment 72 pdf 78K | Abstract | 02/13/2007 09:02 SCE Comments on Draft Revisions to Amendment 72 pdf 61K | Abstract | 02/13/2007 09:04 Sempra Comments on Draft Revisions to Amendment 72 pdf 78K | Abstract | 02/13/2007 09:07 SWP Comments on Draft Revisions to Amendment 72 pdf 66K | Abstract | 02/13/2007 09:09 WPC Comments on Draft Revisions to Amendment 72 pdf 20K | Abstract | 02/13/2007 09:11

Recommended Modifications to Amendment 72 pdf 353K | Abstract | 01/12/2007 12:16

Stakeholder Process Attachment A - Stakeholder Comments pdf 120K | Abstract | 01/12/2007 12:25

Addendum to A72 Potential Refinements White Paper pdf 156K | Abstract | 12/22/2006 09:47

Amendment 72 White Paper pdf 292K | Abstract | 12/11/2006 13:12

CAISO Market Notice: Amendment 72 - White Paper / Straw Proposal Posting, Details on Conference Call html 5K | Abstract | 12/11/2006 13:53

Stakeholder Comments ANHM -- Comments on A72 White Paper Addendum.pdf pdf 109K | Abstract | 01/08/2007 16:23 AReM Comments to Amendment 72 White Paper pdf 124K | Abstract | 12/20/2006 10:51 AReM -- Comments on A72 White Paper Addendum.pdf pdf 73K | Abstract | 01/08/2007 16:17 California Department of Water Resources – Comments on Amendment 72 White Paper pdf 50K | Abstract | 12/20/2006 10:37 CDWR -- Comments on A72 White Paper Addendum.pdf pdf 64K | Abstract | 01/08/2007 16:27 CPUC -- Comments on A72 White Paper Addendum.pdf pdf 138K | Abstract | 01/08/2007 16:19 Calpine – Comments to Amendment 72 White Paper pdf 27K | Abstract | 12/20/2006 10:39 City of Anaheim - Comments to Amendment 72 White Paper pdf 56K | Abstract | 01/02/2007 13:23 City of Riverside – Comments on Amendment 72 Modifications pdf 72K | Abstract | 12/20/2006 10:35 Constellation New Energy – Comments on Amendment 72 White Paper pdf 62K | Abstract | 12/20/2006 11:05 Constellation -- Comments on A72 White Paper Addendum.pdf pdf 128K | Abstract | 01/08/2007 16:21 Coral Power – Initial Comments to Amendment 72 White Paper pdf 56K | Abstract | 12/20/2006 10:53 JointParties -- Comments on A72 White Paper Addendum.pdf pdf 30K | Abstract | 01/08/2007 16:16 PGE – Initial Comments to Market Notice pdf 64K | Abstract | 12/20/2006 10:41 PGE Comments – Comments on CAISO Amendment 72 White Paper pdf 61K | Abstract | 12/20/2006 10:55 PGAE -- Comments on A72 White Paper Addendum.pdf pdf 60K | Abstract | 01/08/2007 16:26 Powerex – Comments to CAISO Amendment 72 White Paper pdf 83K | Abstract | 12/20/2006 10:33 RVSD -- Comments on A72 White Paper Addendum.pdf pdf 62K | Abstract | 01/08/2007 16:24 SCE Comments – Comments on CAISO Proposed Amendment 72 Modifications pdf 87K | Abstract | 12/20/2006 10:56 SCE -- Comments on A72 White Paper Addendum.pdf pdf 89K | Abstract | 01/08/2007 16:22 Sempra Energy Solutions – Comments on Amendment 72 White Paper pdf 321K | Abstract | 12/20/2006 10:57 Strategic Energy, L.L.C. – Comments on Amendment 72 White Paper pdf 25K | Abstract | 12/20/2006 10:59 VERN -- Comments on A72 White Paper Addendum.pdf pdf 59K | Abstract | 01/08/2007 16:20 Western - Comments on CAISO Straw Proposal – Amendment 72 pdf 19K | Abstract | 12/20/2006 10:43 Western - Additional Comment on CAISO Straw Proposal – Amendment 72 pdf 16K | Abstract | 12/20/2006 10:45 Williams Power – Comments to Amendment 72 White Paper pdf 10K | Abstract | 12/20/2006 10:29 Williams -- Comments on A72 White Paper Addendum.pdf pdf 15K | Abstract | 01/08/2007 16:25