Implementing ESR Charging MW Access via ICCP and Public API
Learn about the technical implementation approach and timelines for NPRR-1253, enabling energy customers to access ESR charging MW data programmatically with 4-second granularity through ICCP and Public API changes. Explore the system updates, telemetry point additions, and API enhancements to streamline data access and reliability on ERCOT's grid.
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Presentation Transcript
NPRR1253 - Technical Implementation Approach Sreenivas Badri Michael Ackermann 01/30/2025
NPRR-1253 An increasing number of energy Customers are responding to potential 4-Coincident Peak (4-CP) intervals by curtailing their load. This reduction in load by these consumers increases reliability by reducing stress on the ERCOT Transmission Grid at the time when needed most. Customers relying on the Demand as reported on ERCOT s website may miss these important 4-CP intervals because the Demand reported by ERCOT includes Wholesale Storage Load (WSL) while the Protocols defining the 4-CP intervals specifically exclude WSL. Per the Protocols, WSL incorporates multiple sources of load, but the largest and rapidly growing source of WSL is associated with ESR charging Load. Currently system level ESR charging MW (5-minute Average value) is shown on ercot.com website ESR Dashboard and data available to market participants download manually. This NPRR requests ERCOT to send system level ESR charging MW through ICCP and make available through ercot website to download programmatically through API. 2 2 Public
Implementation Approach and Timelines ICCP and Public API system changes will be implemented on or before 06/01/2025 to provide the capability to Market Participants to access ESR charging MW programmatically with 4 seconds granular data. ICCP Telemetry Changes o New ICCP Telemetry point TCMW (Total ESR Charging MW) will be added to ERCOT ICCP system and made it available to all Market Participants (TSPs and QSEs). o The Total ESR Charging MW is a 4 second instantaneous value and aligns with the transfer frequency of other data sets like System Demand that are currently being sent via ICCP. o ICCP Handbook will be updated with this new ICCP telemetry point object name and other required details by Go Live date. o Tentative Go Live March 26th with MAR_ML4 Model load. Public API Changes o 4 second system level ESR charging MW and System Demand MW values will be made available through both file and direct data request via the existing Public API interface. Both will be served in a JSON format. Files will contain complete data for 5-minute intervals. o Implementation timelines are being developed but this change will go live on or before June 1st o JSON file format will be made available in Developer Portal o Actual API endpoints and OpenAPI specifications are currently being developed. More information will be provided as soon as available. 3 3 Public
Public API/UI Links and download reports manually ERCOT Public Data UI URL: https://data.ercot.com - User will have to sign up to look reports programmatically using this API. ERCOT Public API URL: https://apiexplorer.ercot.com - User can download the public Developer Portal URL: https://developer.ercot.com/ 4 4 Public
