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February 26, 2026

Midcontinent Independent System Operator (MISO)

Entergy
Entergy Regulators Mount Challenge to MISO South Cost Allocation
MISO South regulators publicly opposed a postage stamp cost allocation design, potentially setting the stage for a showdown as MISO prepares for a third long-range transmission portfolio.
MISO and SPP
FERC Clears MISO, SPP’s Affected System Study Improvements
FERC approved changes to MISO and SPP’s affected system study process to allow either RTO to order upgrades of limiting elements on tie lines.
Lawrence Berkeley National Laboratory
Interconnection Costs on the Rise, Berkeley Lab Study Finds

Interconnection costs are on the rise across the U.S., according to a Lawrence Berkeley National Laboratory analysis of thousands of projects in five organized electricity markets.

NextEra Energy
MISO IMM Zeroes in on Tx Congestion in State of the Market Report
MISO’s IMM debuted five new recommendations as part of his annual State of the Market Report, as multiple suggestions were aimed at maximizing transmission utilization by clamping down on wind-related congestion.
MISO and SPP
MISO Stakeholders Request JTIQ Cost Containment Measures
Stakeholders asked for cost containment measures for MISO's and SPP’s Joint Targeted Interconnection Queue portfolio after the RTOs said the cost estimate for the projects nearly doubled.
MISO
MISO Operators Helm Uneventful May
May in MISO proved no trouble for control room operators.
Entergy
MISO Stakeholder Activists Propose Equity Principles
The clean energy organizer for the Alliance for Affordable Energy said there’s a lack of accessibility within MISO for individual ratepayers to make their opinions heard on grid decisions that affect them.
Minnesota Power
MISO Committed to Crackdown on Interconnection Queue Submittals, Departures
MISO appears set on restricting the interconnection requests it will accept and will present a straw proposal at the July 19 Planning Advisory Committee meeting.
© RTO Insider LLC
MISO: Sufficient 2023/24 Auction No Cause for Comfort
A comfortable result for MISO's 2023/24 auction does not guarantee sufficient capacity during the coming summer, executives said.
© RTO Insider LLC
MISO Awaiting Construction on 40 GW of Approved New Resources
MISO membership and executives last week discussed how to hasten the construction of more than 40 GW of generation projects that have permission to connect to the grid but haven’t been built.

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