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December 5, 2025

Transmission Planning

Senate ENR Committee
Senate Hearing Examines Return of Electricity Demand Growth
The Senate Energy and Natural Resources Committee held a hearing on the growing demand for power and how to address it.
ISO-NE
ISO-NE Analysis Details Benefits of Demand Flexibility
Increased demand flexibility could significantly reduce production costs, capital costs, and transmission costs in New England by better-aligning load with generation and reducing peak loads, ISO-NE said.
Invenergy
DOE Pulls $4.9B in Funding for Grain Belt Express
DOE has terminated its $4.9 billion conditional loan commitment for the long-delayed Grain Belt Express project, saying it is “not critical” for the federal government to support the project.
NextEra Energy Transmission
NextEra Energizes 2nd Competitive Project in SPP
NextEra Energy Transmission completed the second of its three competitive projects in SPP’s footprint, the 92-mile, 345-kV Wolf Creek-Blackberry project in Kansas and Missouri.
© RTO Insider LLC
SPP MOPC Briefs: July 15-16, 2025
SPP stakeholders resoundingly rejected a proposed tariff change to integrate large loads, pushing back against what some say is a rushed process outside of the normal stakeholder structure.
© RTO Insider
FERC Sides with Market Monitor over MISO in Compensation Dispute
FERC sided with MISO IMM David Patton, denying a petition from MISO that would have prevented the RTO from reimbursing the Monitor for reviewing the market impact of transmission planning.
Grid Strategies
Report Calls U.S. Transmission Buildout Inadequate
A new study warns the United States is not building anywhere near enough high-voltage transmission to support the anticipated needs of the evolving economy.
© RTO Insider 
Retiring ISO-NE CEO van Welie Reflects on 25 Years at the RTO

Retiring ISO-NE CEO Gordon van Welie discussed the changes he helped oversee during his time at the RTO, including the rise of gas generation and major investments in transmission infrastructure.

© RTO Insider
SPP ‘Blazes Trail’ with Consolidated Planning Process
SPP stakeholders unanimously approved a tariff change that replaces current planning processes with an integrated three-year cycle composed of long-term and annual studies.
NYSERDA
NY Steps Back from OSW, Halts Offshore Tx Planning Process
The PSC shut down the process to build an underwater transmission network to bring electricity to shore from the hundreds of wind turbines the state hopes to see spinning off its coastline. 

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