Search
December 5, 2025

transmission congestion contract (TCC)

© RTO Insider
Calpine Sees Support for TCC Auction Proposal from NYISO Stakeholders
Calpine came to the NYISO Installed Capacity Working Group with its proposal to create on- and off-peak transmission congestion contract auctions. 
© RTO Insider 
NYISO Monitor Proposes Changing Congestion Rent Assignments

The NYISO Market Monitoring Unit is proposing to revise the ISO’s net congestion rent assignment process by allocating residuals to transmission owners on an individual facility basis.

© RTO Insider 
Calpine Proposes Time-varying TCCs at NYISO
Calpine proposed that NYISO split its 24-hour-only transmission congestion contracts into on-peak and off-peak products, arguing it would reduce the cost of congestion hedging by better aligning it with load and generation behavior.
Z22, CC-BY-SA 4.0, via Wikimedia Commons
NYISO Monitor Analyzing Alternative Capacity Market Designs
The NYISO Market Monitoring Unit told stakeholders it is independently analyzing the capacity market in parallel with the ISO’s ongoing Capacity Market Structure Review project.
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.  
NYISO
NYISO Management Committee Briefs: Nov. 30, 2022
NYISO’s Management Committee approved tariff revisions and received briefings on the ISO’s winter supply outlook and its updated Strategic Plan.
NYISO
NYISO Installed Capacity Working Group/Market Issues Working Group Briefs: Sept. 30, 2022
NYISO proposed changes to its capacity accreditation rules and expected ramp rates for duct-firing generators.
NYISO OKs Changes on Hybrid, Fast Start Resources, TCCs
The NYISO Business Issues Committee approved rule changes regarding transmission congestion contracts and hybrid storage facilities.
NYISO Management Committee Briefs: Sept. 23, 2020
NYISO CEO Rich Dewey told stakeholders that staff are determining whether a technical problem related to the demand curve reset violates the Tariff.
NYISO Business Issues Committee Briefs: Sept. 9, 2020
Con Ed won approval from the NYISO BIC of a proposal to increase the exemption from real-time generation penalties for units that supply steam to New York City.

Want more? Advanced Search