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March 9, 2026

Transmission Planning

MISO and SPP
MISO, SPP Draft New Joint Portfolio that Could Run $3.6B
MISO and SPP put forth two potential, 500-kV joint transmission portfolios valued at either $1.3 billion or $3.6 billion to beef up their transfer capability.
Eversource
FERC Dismisses Challenge to Eversource X-178 Asset Condition Project
FERC dismissed a complaint about a $385 million asset condition project on an Eversource Energy transmission line in New Hampshire, finding it failed to demonstrate any violations by the company.
MISO
MISO Opens 3rd Tx Project Review as Data Center Plans Conflict with Long-range Tx Timeline
MISO opened a third review of a long-range transmission project, this time because three substations are needed more than five years ahead of schedule to accommodate new data center load.
NYISO
Stakeholders Ask for Boundaries on NYISO’s Reformed Reliability Process
The conversation during a five-hour meeting on changes to NYISO’s transmission planning processes became heated at times, as stakeholders challenged ISO officials on exactly how they will develop the possible scenarios they propose to determine reliability needs.
© RTO Insider 
Bipartisan Bill Introduced to Boost Advanced Transmission Technologies
Two senators introduced the REWIRE Act, which aims to speed up permitting for advanced transmission projects on existing rights of way and generally encourage advanced transmission technologies.
MISO
MISO Sees Possibility for 500-GW Fleet in 20 Years
MISO said its modeling estimates show it could be in for anywhere from 413 GW to 501 GW of installed capacity in its system by 2045.
© RTO Insider
MISO, SPP Collaborate on Their ERAS Proposals
MISO and SPP credited interregional collaboration with helping them win FERC's approval of their expedited study processes.
© RTO Insider
MISO-SPP Conference Eyes Future Generation Trends
The Gulf Coast Power Association’s MISO-SPP Regional Conference showcased the rush to add resources, and panelists mused on which new trends could take hold in resource expansion.
© RTO Insider
Data Center Demand Challenges Dominate EMPOWER 26 Presentations
The challenges of meeting accelerating load growth dominated discussions at EMPOWER 26, Yes Energy’s annual summit.
Shutterstock
Judge Orders Spill at Northwest Dams to Aid Salmon, Despite Energy Concerns
A federal judge in Oregon ordered increased spill levels at eight dams on the Columbia and Snake rivers in order to protect endangered salmon species, rejecting claims that doing so would impede power generation.

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