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Enron Mail |
"Kirkpatrick, Joe" <joe.kirkpatrick@nrgenergy.com< writes to the
NYISO_TECH_EXCHANGE Discussion List: There are still no answers to the questions (below). In addition to this I am curious that when the NYISO requests generation for ISO security it is only Transmission Owner generation that is dispatched, undoubtedly avoiding merchant generation from being dispatched. I was wondering where the tariff language is to justify this type of out-of-merit generation dispatch. 05-Dec-2000 16:23:41 ISO REQUESTS GILBOA___4 OUT OF MERIT FOR ISO SECURITY. AT 16:30 12/05/00 05-Dec-2000 16:27:45 ISO REQUESTS GILBOA___4 OUT OF MERIT FOR ISO SECURITY. AT 16:30 12/05/00 05-Dec-2000 16:32:45 12/05/2000 16:31:54 NYISO SCD reserve pick-up remains active. 05-Dec-2000 16:34:24 12/05/2000 16:21:49 NYISO SCD reserve pick-up executed. 05-Dec-2000 16:49:37 ISO REQUESTS GILBOA___4 OUT OF MERIT FOR ISO SECURITY. AT 17:00 12/05/00 05-Dec-2000 17:00:17 12/05/2000 16:58:49 NYISO SCD reserve pick-up executed. 05-Dec-2000 17:21:20 TP-CH REQUESTS ROSETON___2 OUT OF MERIT FOR ISO SECURITY. AT 17:04 12/05/00 05-Dec-2000 17:21:41 ISO REQUESTS ROSETON___2 OUT OF MERIT FOR ISO SECURITY. AT 17:04 12/05/00 05-Dec-2000 17:21:55 ISO REQUESTS POLETTI____ OUT OF MERIT FOR ISO SECURITY. AT 17:05 12/05/00 What deficiencies are there in the SCD software that it cannot handle load pickups? What is an NYISO SCD reserve pickup, and how does it affect generation from setting clearing prices? Why do these questions go unanswered, if there is tariff language to support this please point me in the right direction. ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- --------------------------------------------------------- I have a question or two with regard to the following "Operational Announcements" (Below). These are a few examples of many that are requests for generation being requested out-of-merit by the NYISO for NYISO security. In my limited understanding of the way SCD works I had thought that the only reason the ISO or a Transmission Owner would request generation out-of-merit is to resolve for a constraint or system condition that SCD could not (set me straight if I am off-base). Requesting generation out-of-merit to resolve for system security is an effective method of quickly resolving for an out-of-scope SCD system problem and by definition will not set clearing price. 1. What are the rules and procedures in place to request generation out-of-merit both for local (Transmission Owner) and ISO request. 2. What other control actions have to be exhausted prior to initiating a request for generation to be called on out-of-merit. 3. Are the generation bids available to the requestor(s) prior to making the request. (Is economics a consideration?) 4. When load is available to be dispatched, will it be considered as a control action instead of generation? 5. Is generation called on out-of-merit to resolve for DNI constraints. 6. In particular for Gilboa it was my understanding that prior to requesting additional generation from Gilboa that an emergency was to take place. Is there another agreement in place between the NYISO and NYPA. Below is an excerpt from the ICAP manual. 4.4.2 Energy Limited Resources Energy Limited Resources that are ICAP suppliers must be able to provide the Energy equivalent of their claimed ICAP for four (4) hours each day. Energy Limited Resources must bid or schedule in the Day-Ahead Market for twenty-four (24) hours each day in such a way as to enable the NYISO to schedule them for the period in which they are capable of providing the energy. An Energy Limited Resource must also provide the NYISO with information concerning the hours during which it will be recharging or replacing depleted resources. Once the resource has provided four hours of Energy equivalent ICAP, the NYISO will not call on an Energy Limited Resource during its recharge hours, except in the case of an emergency.
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