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Enron Mail |
Cc: isoclientrelations@caiso.com, lines@enron.com, slines@caiso.com
Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Bcc: isoclientrelations@caiso.com, lines@enron.com, slines@caiso.com X-From: CRCommunications <CRCommunications@caiso.com< X-To: ISO Market Participants <IMCEAEX-_O=CAISO_OU=CORPORATE_CN=DISTRIBUTION+20LISTS_CN=ISO+20MARKET+20PARTICIPANTS@caiso.com< X-cc: ISO Client Relations <ISOClientRelations@caiso.com<, Lines, Shelly <SLines@caiso.com< X-bcc: X-Folder: \Stokley, Chris (Non-Privileged)\Chris Stokley\ISO\MRKT INFO X-Origin: Stokley-C X-FileName: Stokley, Chris (Non-Privileged).pst Market Participants: Please assure that this Notification is forwarded to your respective Operating Departments --- Notification of Operating Procedure Update * The following new or revised ISO Operating Procedures have been implemented and are posted for reference on the ISO Website. ISO Operating Procedure posted: M-430 Splitting Operating Reserve Energy from Imbalance Energy ** Please Note: Attachment A is NOT Posted for Security Reasons Version: 1.1 Effective Date: 6-21-2001 Procedure Purpose: In the previous Ancillary Service (AS) Market, Operating Reserves (OR) were combined with Supplemental and Replacement Reserve energy bids to construct the Imbalance Energy (IE) stack. It was often necessary to skip Spinning and Non-Spinning energy bids when dispatching IE in order to preserve OR margin. Additionally, AS suppliers that were capacity rich but energy limited were reluctant to bid into the AS market due to the possibility of frequent energy dispatches. Typical examples of energy limited resources are hydro units capable of fast ramp rates and energy production but only for a limited duration due to water availability and emission limited resources that can only generate for a limited amount of time. All these resources could provide OR energy for system contingencies and emergencies, but not for routine IE. Summary of changes: This is a new ISO Operating Procedure * Please find them at http://www1.caiso.com/thegrid/operations/opsdoc/index.html under the appropriate Operating Procedure section heading. If you have any questions, please e-mail the 'Procedure Control Desk' mailbox [mailto:procctrldesk@caiso.com] and we will respond as soon as possible. Thank-You, Operations Support and Training
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