ERCOT’s Technical Advisory Committee on Friday unanimously approved a change to the Resource Registration Glossary (RRGRR021) with an email vote.
RRGRR021 adds new data requirements to the glossary to account for submittal requirement fields for dynamic models, which are required by the Transient Security Assessment Tool (TSAT). The change, which was granted urgent status, allows the TSAT to calculate dynamic stability-related generic transmission limits in real time and help the operators maintain system reliability.
Committee members also directed the Wholesale Market Subcommittee to determine whether to modify the 10-hour restoration period for emergency response service (ERS). A reliability deployment price adder uses unrestored ERS to adjust the generation to be dispatched. ERCOT’s protocols require the TAC to annually review the restoration period.
Several members expressed their openness to ERCOT recommending a new restoration period of as little as five hours.
The issue was discussed during a January joint meeting between the Wholesale Market and Demand Side working groups, but they were unable to agree on a recommendation.
During the information session, scheduled after the in-person TAC meeting was canceled, ERCOT legal staff told the committee it has scheduled an April 9 workshop to share its proposed changes to market-entry requirements for counterparties. Referencing the GreenHat Energy default in PJM, Juliana Morehead said the Texas grid operator wants to strengthen its oversight of various counterparties’ financial health and prevent market exposure to potential bad actors.
— Tom Kleckner
