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March 10, 2026

Ancillary Services

© RTO Insider LLC
PJM MRC/MC Briefs: Dec. 20, 2023
The PJM MRC and MC both endorsed a proposal to rework the regulation market to operate with a single price signal and two products provided by market sellers.
© RTO Insider LLC
FERC Upholds MISO Ban on Renewables Supplying Ancillary Services
FERC has reaffirmed that MISO can exclude renewable resources from providing ancillary services in its markets.
PJM
PJM MRC/MC Preview: Dec. 20, 2023
The PJM Markets and Reliability Committee will consider endorsement of two competing proposals to implement multi-schedule modeling, while the Members Committee will endorse representatives for the Finance Committee.
NYISO
NYISO BIC Stakeholders OK Modeling, Market Design
NYISO’s Business issues Committee approved testing of dynamic reserves, changes to the LCR optimizer, and new capacity accreditation rules.  
ERCOT
ERCOT Technical Advisory Committee Briefs: Dec. 4, 2023
ERCOT stakeholders have endorsed the grid operator’s proposed ancillary service methodology for 2024, but only after extracting a commitment from staff to bring the proposal back for further review.
PJM
PJM MRC/MC Briefs: Nov. 15, 2023
The PJM Markets and Reliability Committee endorsed new generation winterization requirements, followed by the Members Committee approving three changes to the stakeholder process.
NYISO
NYISO: Costs of Mitigation Tool Bug Negligible

NYISO said a market software problem identified this year in the day-ahead and real-time ancillary services markets had a negligible financial impact and did not result in any market manipulation.

Big River Steel
IMM Presses MISO for New Rules After DR Market Gaming
MISO’s Independent Market Monitor suggests demand response offer floors and attestations of expected levels of energy consumption in the wake of a steel mill’s gaming of the demand response market.
RTC
Renewable Thermal Storage Could Zero out Industrial Heat Emissions
Thermal energy storage powered by renewables could be a flexible, cost-effective way to decarbonize heavy industry in the U.S., according to a new report from the Renewable Thermal Collaborative and Center for Climate and Energy Solutions.
NextEra Energy
Groups Seek Hybrid Exemption from MISO Ban on Renewables Supplying Ramping
Clean energy groups in MISO have told FERC it should rethink its support of a ban on renewable energy in MISO’s ancillary service market because the commission didn’t consider hybrid resources.

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