Search
December 5, 2025

ancillary services (AS)

Primoris Services Corp.
Flexible Ramping Grows as Ancillary Service
RTOs and ISOs described their strategies for using quick ramping products to offset weather-dependent renewable resources at a FERC conference Tuesday.
ERCOT
ERCOT Stakeholders Sign Off on More Ancillary Services
ERCOT stakeholders approved a binding document revision that codifies the grid operator’s plans to deploy more operating reserves to ensure summer readiness.
RTOs Gather to Discuss Real-time Co-optimization
ERCOT staffers and stakeholders gathered to hear advice from the RTOs that have already implemented real-time co-optimization in their markets.
ERCOT TAC Endorses Co-optimization Principles
ERCOT's staff on Wednesday briefed the Technical Advisory Committee on three key principles of real-time co-optimization.
ERCOT Briefs: Week of July 8, 2019
ERCOT staff and stakeholders are preparing to bring a first set of real-time co-optimization policy principles to the Technical Advisory Committee.
ERCOT Technical Advisory Committee Briefs: March 27, 2019
ERCOT's Technical Advisory Committee tabled a request to lower the grid operator’s peaker net margin threshold pending further direction from the Texas PUC.
CAISO: Forecasting Challenges Drove Increased Regulation Requirements
CAISO  provided an explanation of its decision to increase regulation requirements in response to the growing variability on its system.
CAISO Regulation Costs Quadruple as Prices, Procurement Jump
Regulation costs in CAISO have quadrupled since the ISO increased requirements to help balance variable output from renewable resources in February.
ERCOT Stakeholders Reject Ancillary Service Revisions
ERCOT members voted down the ISO’s attempt to salvage a revision request that would have replaced several ancillary services with new products.
ERCOT Technical Advisory Committee Briefs
The ERCOT Technical Advisory Committee endorsed a recommendation to increase the fuel adder factor for coal- and lignite-fired resources.

Want more? Advanced Search