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December 5, 2025

surplus interconnection service (SIS)

ISO-NE
ISO-NE Publishes Draft 2026 Work Plan
Capacity auction reforms, a new asset condition reviewer role, parallel transmission planning efforts, new reserve products, Pay-for-Performance changes and interconnection modifications are likely to be on the docket for ISO-NE in 2026.
Yes Energy
Stakeholder Forum: Surplus Interconnection Can Maximize Capacity in ISO-NE
In New England, rules governing how new resources connect to the regional grid limit full use of the system’s potential. Precious “surplus” capacity can and should be leveraged to interconnect new, low-cost clean energy technologies to deliver more reliable, affordable power, says Alex Lawton.
California State Senate
Calif. Lawmakers Seek More Accountability from CPUC
A California Senate committee has advanced a bill aimed at increasing accountability and transparency of the state Public Utilities Commission.
PJM
PJM MRC/MC Briefs: March 19, 2025
The Markets and Reliability Committee endorsed PJM's recommended installed reserve margin and forecast pool requirement values for the 2026/27 Base Residual Auction.
© RTO Insider LLC 
PJM Stakeholders Approve SIS Manual Language
The PJM Planning Committee endorsed by acclamation revisions to Manual 14H to conform with changes to the RTO’s surplus interconnection service process FERC approved in February.
Shutterstock
FERC Approves PJM’s One-time Fast-track Interconnection Process
FERC approved a one-time measure by PJM to add up to 50 new projects to a cluster of projects to be studied beginning in April.
© RTO Insider LLC
PJM Capacity Market in Flux Going into 2025
PJM heads into 2025 with several proposals before FERC seeking to rework its capacity market and generator interconnection queue, while stakeholders work on an expedited Quadrennial Review of the market and changes to resource accreditation.
© RTO Insider LLC
PJM Stakeholders Wary of Expedited Interconnection Proposal
Stakeholder opinions were sharply divided at the PJM Members Committee’s meeting regarding RTO proposals to allow high capacity factor resources to be sped through the interconnection queue and revise aspects of the capacity market. 
Shutterstock
Stakeholders Push for More Interconnection Rule Changes at FERC
Stakeholders are split on whether FERC should adopt additional changes to its generator interconnection rules, or focus on implementing Order 2023 while letting specific regions go further on their own, according to comments filed after a September technical conference.
© RTO Insider LLC
FERC Accepts SPP Order 845 Compliance Filing, Grants Tx Planning Waiver

FERC has accepted a pair of SPP tariff revisions related to generator interconnection procedures and transmission planning.


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