ERCOT Fast Frequency Response Advancement Project

Fast Frequency Response (FFR) refers to the adjustment of power generation or load in a short timeframe to correct an imbalance between supply and demand. Originally planned for implementation in early December, the ERCOT FFR Advancement project shifted plans to implement changes in spring 2022. Currently, the FFR Advancement project is its second phase in the series of work being done to implement Nodal Protocol Revision Request (NPRR) 863, the creation of ERCOT Contingency Reserve Service and Revisions to Responsive Reserve. Market Participant testing in the Market Operations Test Environment (MOTE) began on October 27, 2021.

The following is a high-level list of changes made as part of the ERCOT FFRA project:

Upon the full implementation of FFR as a part of this project, for any operating hour in the Day Ahead Market (DAM),

An ESR-Gen and ESR-CLR will be able to offer, get awarded and provide* (conventional) Regulation, RRS-PFR, and (online) Non-Spin simultaneously with RRS-FFR (assuming the ESR-Gen or ESR-CLR is qualified for the AS or AS sub-type it is offering or providing).

A NCLR will be able to offer, get awarded and provide** either RRS-FFR or RRS-UFR (assuming the NCLR is qualified for the RRS sub-type it is offering or providing).

RRS Offers in & Awards from DAM/SASM, RRS AS Obligation in COPs and Self-Arranged RRS AS submissions will split by subtype namely, RRS-PFR, RRS-FFR and RRS-UFR.

In Real Time, new telemetry will be setup to send Ancillary Service Responsibility and Ancillary Service Schedule for RRS-FFR.

The existing Ancillary Service Responsibility and Ancillary Service Schedule telemetry will continue to be used for telemetering RRS-PFR and RRS-UFR.

For CLRs including ESR-CLRs and Generating Units operating in synchronous condenser fast response mode, RRS-PFR Awards from DAM/SASM, RRS-PFR COP submissions, and RRS-PFR Responsibility & Schedule telemetry in Real Time for CLRs will be limited by their corresponding RRS-MW-Limit (%) or tested MW as applicable.

For all Resources providing RRS-FFR, RRS-FFR Awards from DAM/SASM, RRS-FFR COP submissions and RRS-FFR Responsibility & Schedule telemetry in Real Time will be limited by their respective FFR Qualified MWs.

There will be changes to several reports primarily to include information breakdown by RRS subtype.

Each submit and download process has been addressed in FFR market change tickets with 4.9.07 and 4.9.08.

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