CALIFORNIA ISO MARKET NOTICE

Requested Client Action:  Information Only

Date of Distribution:  June 22, 2006

Categories:  Legal and Regulatory, Market Operations, Market Rules and Market Design

Subject:  Amendment 72 Requirements to Schedule 95% of Day Ahead Forecasted Load
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Summary:  This notice reminds Scheduling Coordinators (SCs) of the importance of meeting the 95% day-ahead load scheduling requirements imposed by Amendment 72, particularly during periods of high summer loads.  Failure to schedule at least 95% of day-ahead forecasted load in the California ISO (CAISO) Day Ahead Market may be subject to sanction by the Federal Regulatory Energy Commission (FERC).

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Main Text:  CAISO Tariff Amendment 72, which was approved by the Federal Energy Regulatory Commission (FERC) on November 21, 2005, requires that Day Ahead Schedules must include at least 95% of the SC’s forecast Demand for each hour, for each UDC Service Area.  See CAISO Tariff 4.5.4.2.1.1.  Amendment 72 requirements have been summarized in a variety of previous Market Notices, and are posted at <http://www1.caiso.com/14d8/14d8aabc1af90.html>.

The CAISO reminds participants of the importance of these scheduling requirements, particularly during periods of high summer loads. In addition, although the CAISO Tariff does not contain explicit penalties for an SC’s failure to schedule 95% of its forecast hourly demand, the CAISO routinely reports each SC’s compliance with these requirements to the FERC Office of Enforcement. 

Failure to meet this requirement may be subject to sanction by FERC under FERC market rules.
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For More Information Contact: 

For more information, contact your Client Representative or Brad Cooper, Department of Market Monitoring, at 916-608-7156 or Bcooper@caiso.com <mailto:Bcooper@caiso.com>.

The California ISO strives to be a world-class electric transmission organization built around a globally recognized and inspired team providing cost-effective and reliable service, well-balanced energy market mechanisms, and high-quality information for the benefit of our customers.

EA/ComPR/IPS/ds