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CSC Shadow Price “ ERCOT to make available via XML notification (push) at the same time ERCOT determines to deploy zonal balancing energy to mitigate zonal congestion. If more than one CSC is constrained in a 15-minute interval, the shadow price for each constrained CSC will be provided. Currently available on portal and accessible day or so later via spreadsheet download.
CSC Zonal Limit (OC1) - This value, for each CSC, will also be available via XML query in real-time, every 15-minutes, for the relevant interval (currently the interval ending 45 minutes later) whether or not the CSC is constrained. This value may not be the same as the CSC Monitored Limit. Currently available on portal and accessible day or so later via spreadsheet download.
Forecasted CSC Loading (Sched Impacts) - This information will be available via XML query in real-time, every 15 minutes, for the relevant future interval (currently the interval ending 45 minutes later), whether or not there is, or is forecasted to be, zonal congestion. ERCOT labels this information as€œMW loadiâ€?. Actually, the information is better described “MW Scheduled Imptsâ€? since it does not reflect the forecasted or actual CSC loading. ERCOT may re-label this item accordingly. Currently available on portal and accessible day or so later via spreadsheet download.
Zonal Portfolio BES Deployment Quantities (Both Step 1 and Category 1 Deployments) - Both of these items will be available via XML query in real-time, every 15 minutes, for the relevant future interval (currently the interval ending 45 minutes later), whether or not there is, or forecasted to be, zonal congestion. The Step 1 quantities will correspond to the zonal MCPEs that are currently provided by ERCOT in each 15-minute interval.
Scheduled Zonal Generation - Day-Ahead scheduled generation aggregated by zone, and made available at approximately 11am the day prior to the Operating Day and updated hourly throughout the Adjustment Period. This information will be available via XML query.
Total System Incremental (up) Regulation Deployments - The 15-minute integral of this information will be available via XML query immediately following each 15-minute interval.
Total System Decremental (down) Regulation Deployments - The 15-minute integral of this information will be available via XML query immediately following each 15-minute interval.
Forecasted and Historical Load by Load Areas - This information will be available via XML query for each 15-minute interval of the upcoming Operating Period, one hour prior to the start of each Operating Period (or on whatever timeline ERCOT runs its short-term load forecasting routine to update its forecasted load). The forecasted information should be based on ERCOT's own forecast of aggregate zonal loads, irrespective of QSE schedules. This is information in addition tohe “Short Term Load Focast�, by zone.
Forecasted Net Zonal Energy – This information will be available via XML query for each 15-minute interval of the upcoming Operating Period, one hour prior to the start of each Operating Period (or on whatever timeline ERCOT runs its short-term load forecasting routine to update its forecasted load). The information should be based ERCOT’s Forecasted Zonal Aggregate Load d ERCOT’s trend of actual aggregate zonal generation. The Working Group is also requesting that ERCOT make available the methodology, including distribution factors, used in converting from Load Areas to Zones.
Actual Zonal Generation - This information will be available via XML query in real-time on the same timeline as other information regarding frequency control that is already being provided by ERCOT (i.e., every few seconds). This information will be based on SCADA data.
Zonally Aggregated BES Bid Curvesstrong> – For those 15-minute settlement intervals in which ERCOT is managing CSC congestion (i.e., intervals in which there is at least one non-zero CSC shadow price due to CSC congestion management), ERCOT will make available, via XML query within 15 days after the operating day, zonal aggregates of up balancing energy service (UBES) bid prices and quantities for each settlement interval and zonal aggregates of down balancing energy service (DBES) bid prices and quantities for each settlement interval.
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