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The Gist ERCOT produces network models based on information contained in the ERCOT model database and the outage scheduler.    When transmission entities upgrade lines they often have to lower the rating of the lines while they work on the upgrade.  Occasionally the transmission entities enter the transmission downgrade into the network model but do…

The Gist When load resources are deployed by ERCOT (other than Controllable Load Resources) ERCOT adds the deployed MWs back into Generation to be Dispatched (GTBD) in the Reliability Deployment Price Adder calculation with a corresponding bid (really an offer) starting at $300/MW and linearly ramping up to $700/MW. Important Actions   Reference   Meeting…

The Gist Stub   Important Actions Reference     Meeting Notes   Feedback? Send any corrections/clarifications to notes@cimview.com

The Gist Stub   Important Actions Reference System Ancillary Service Monitor (ERCOT page showing, among other things, current PRC level)   Meeting Notes   Feedback? Send any corrections/clarifications to notes@cimview.com

The Gist ERCOT occasionally corrects prices; this is a historical log of those corrections From October 2021 onward. Price Correction Log 9/30/21, 10/6/21-10/12/21 DAM Prices due to mis modeling of the North Edinburg-Lobo Generic Transmission Constraint (Board approval 12/10/21)   Reference DAM Prices NE_LOBO mis model Meeting Notes 12/10/21 BoD 11/3/21 WMS Feedback? Send any…

The Gist NPRR863 put the concepts of ERCOT Contingent Reserve Service (ECRS) and Fast Frequency Response (FFR, a subset of Responsive Reserve Service) into the ERCOT protocols, but was not implemented immediately.  This project implements parts related to FFR.  The main issue with this project, and why it is a separate topic, is that it…

The Gist ERCOT produces the LTLF once a year in January with forecasts of energy usage and peak demand for the next ten years.  In 2022, for the first time, ERCOT included a solar rooftop component in the forecast.  The goal for 2023 is to include an electric vehicle component..   Important Actions 1/12/22 ERCOT presents…

The Gist In the aftermath of Winter Storm Uri the Texas legislature determined that the ERCOT market design was in need of reform and decreed a number of changes in Senate Bill 3.  The Public Utility Commission opened up project 52373 and invited several rounds of comments on market design.  On 12/6/21 they published Phase…

The Gist SCR819/NPRR1111 will require Intermittent Renewable Resources (IIRs) to follow their base points if they are behind a Generic Transmission Constraint that is in danger of being violated.  It is currently tabled at PRS.  As ERCOT puts it, “With each SCED Base Point sent by ERCOT to the Qualified Scheduling Entity (QSE) representing an…

The Gist Under NPRR863 Responsive Reserve Service (RRS) was essentially split up into its component elements; 1) ERCOT Contingency Reserve Service (ECRS), the portion of RRS that has to come online within ten minutes and replace resources that have tripped offline; 2) RRS Fast Frequency Reserve (FFR) – Resources (mostly batteries) that can respond within…