Frequency response

Started: Dec 22, 2016

This initiative will evaluate designing a primary frequency response procurement and compensation mechanism to ensure sufficient levels of primary frequency response are provided in response to frequency disturbances. This procurement mechanism would purchase primary frequency response service, which would require automatic provision of additional power to arrest and stabilize frequency within fifty-two seconds.
The ISO has suspended this initiative to focus resources on day-ahead market improvements and expansion of the day-ahead market to include Energy Imbalance Market (EIM) participants. The ISO plans to address in 2020 frequency response and regulation products, and improvements to current products.


Proposal Development Decision Implementation Completed/Closed
Phase 2
Will resume in 2020
Phase 1
Mar 17, 2016 Draft tariff language
Feb 11, 2016 Draft final proposal
Feb 02, 2017 FERC approval
Apr 21, 2016 Tariff amendment filing (ER16-1483)
Mar 25, 2016 Board of Governors approval
Sep 30, 2016 Deployment

Phase 2

In-person meeting

Frequency Response Phase 2 - Control Product Specifications

Frequency Response Phase 2 - Draft Control Product Specifications

Agenda and Presentation - Frequency Response Working Group Meeting

CESA Presentation - Frequency Response Working Group Meeting

Web meeting

Issue Paper - Frequency Response Phase 2

Agenda and Presentation - Frequency Response Phase 2 Issue Paper

Phase 1


Outcome: Software deployment for BAL-003 consisted of the creation of a new settlements charge code for allocating costs associated with the procurement of Transferred Frequency Response Obligation. FERC approved the system changes in February 2017.