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December 5, 2025

Transmission

ISO-NE
ISO-NE Reveals 1st Details of Long-term Transmission Proposals
ISO-NE received six proposals from four different companies in response to its request for proposals to address transmission constraints and interconnect onshore wind in Maine.
MidAmerican Energy
MISO Moves to Increase Quarterly Project Count in Queue Express Lane
MISO wants to increase the number of generation projects it may study under its interconnection queue express lane from 10 to 15 per quarter.
Entergy Louisiana
1st Go at MISO South Long-range Tx Planning to Take 3 Years
MISO said its first crack at long-range transmission planning in the South region likely would take about three years to culminate in potential project recommendations.
Avangrid
Court Dismisses Claims of NextEra Antitrust Violations to Block NECEC
A U.S. district court judge in Massachusetts granted NextEra Energy’s motion to dismiss claims the company violated federal and state antitrust laws in its efforts to block the New England Clean Energy Connect transmission project.
© RTO Insider LLC
IESO Seeking to Stay ‘Two Steps Ahead’ of Need
IESO is adopting more “proactive” planning processes in response to a projected load increase of 75%.
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MISO IMM Recommends Changes to Handling of Midwest-South Tx Constraint

MISO’s Independent Market Monitor has called for the RTO to change how it manages its Midwest-South transfer limit in ways he contends will open line capacity and reduce costs for Midwest market participants.

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.
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FERC Ends Show-cause over SPP FTR Changes
FERC terminated a show-cause proceeding against SPP and accepted the RTO’s proposal to revise its collateral requirements for financial transmission rights by including an additional re-marking mechanism for seasonal products.
AdminMonitor
Texas PUC Approves Permian, Outside ERCOT Transmission Projects
Texas regulators have approved the first transmission project in the Permian Basin Reliability Plan, along with several other projects.
DOE
DOE Terminates $7.56B in Energy Grants for Projects in Blue States
The U.S. Department of Energy has terminated 321 grants totaling $7.56 billion for 223 projects, apparently targeting Democratic-leaning states.

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