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Calculation of Bid-Based Reference Prices

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Background

As provided in the ISO Tariff, the CAISO uses bid-based reference prices as part of its Automatic Mitigation Procedure (“AMP”) and to settle bids dispatched out-of-sequence for Intra-Zonal Congestion. The bid-based reference prices are calculated for the CAISO by an independent entity, Potomac Economics (“Potomac”). The ISO Tariff specifies, at a fairly detailed level, how these reference prices are to be calculated. Other details were provided in documents drafted by Potomac and made publicly available by the CAISO. The CAISO intends to file an amendment to the ISO Tariff with the Federal Energy Regulatory Commission (“FERC”) to incorporate details specified in those Potomac documents.

Outcome

ER07-1038 FERC Letter Order: Reference Price Calculation Amendment
pdf 18K | Abstract | 03/21/2008 08:31

Process

Draft Bid-Based Reference Price Tariff Language
doc 41K | Abstract | 05/31/2007 09:54
Bid-Based Reference Prices Calculation Issue Paper
pdf 89K | Abstract | 05/02/2007 11:22
Potomac Economics - Plan for Calculating Decremental Reference Levels (2003)
pdf 12K | Abstract | 05/02/2007 11:24
AMP Reference Level - Frequently Asked Questions, Responses by Potomac Economics (2002)
pdf 46K | Abstract | 05/02/2007 11:25

Market Notices

Bid-Based Reference Prices Calculation Issue Paper Posted
html 17K | Abstract | 05/02/2007 13:13
Start Date for Decremental Reference Prices Market Notice (2003)
pdf 110K | Abstract | 05/02/2007 11:27
AMP Reference Price Market Notice (2002)
pdf 96K | Abstract | 05/02/2007 11:26

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