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December 15, 2025

Transmission Planning

CAISO
FERC Approves CAISO Plan to Streamline Interconnection Process
FERC approved CAISO's proposal to streamline its generator interconnection process to deal with the “unprecedented volume” of interconnection requests it received in 2023.
Yes Energy
Cardinal-Hickory Creek Line Fully Energized 13 Years After MISO Approval
Thirteen years after it was recommended by MISO, the 102-mile, $655 million, often-controversial Cardinal-Hickory Creek line is completely in service.
© RTO Insider LLC
The Buzz at NCEW: The Election, Permitting and IRA Tax Credits
With the presidential election five weeks away, the fate of permitting reform and the Inflation Reduction Act were top of mind for attendees and speakers at the National Clean Energy Week Policymakers Symposium.
Admin Monitor
Texas PUC Approves Permian Reliability Plan
Texas regulators have approved ERCOT’s reliability plan for the petroleum-rich Permian Basin that could rely on the state’s first use of 765-kV transmission facilities.
© RTO Insider LLC 
California GETs Bill Gets Newsom’s Signature
California's governor has signed a bill that proponents say will speed the deployment of grid-enhancing technologies — techniques that can rapidly boost grid capacity and increase the use of renewable resources.
NYISO
With Final Class Year Approval, NYISO Marks End of an Era
NYISO’s Operating Committee approved the system upgrade facilities and system deliverability upgrade studies for Class Year 2023.
© RTO Insider LLC
With FERC Inaction, ISO-NE Delays Order 2023 Implementation
ISO-NE submitted its compliance to the commission in May, but FERC has yet to rule on the proposal, throwing a wrench in the RTO's implementation timeline.
MISO
MISO Affirms Commitment to $21.8B Long-range Tx Plan in Final Workshops
MISO staff are resolute that a collection of 24 proposed, mostly 765 kV projects totaling $21.8 billion is a “least-regrets” avenue to achieving members’ resource planning, despite misgivings from some members.
Energy Strategies
Report Calls for $75B in New Tx to Meet Western Needs
The Western Interconnection will need about 15,600 additional new line miles of high-voltage transmission at a cost of about $75 billion over the next 20 years to meet the anticipated increase in load growth, according to a report commissioned by Gridworks and GridLab.
CAISO
Data Centers Contribute to 60% Increase in San Jose Load Forecast
Data centers are contributing to significant load growth and project needs in Silicon Valley, according to CAISO representatives speaking at the kickoff meeting for the ISO’s 2024/25 transmission planning process. 

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