A MISO board committee advanced 432 projects from transmission owners at a cost of almost $12.3 billion under the RTO’s 2025 Transmission Expansion Plan.

MISO will add Bonneville Power Administration’s former COO to its Board of Directors and welcome back two term-limited directors in 2026 after collecting membership votes.

MISO is poised to retain two of its term-limited board members in 2026 while adding an executive from a federal power marketing agency.

MISO’s Board of Directors has asked the RTO’s Independent Market Monitor to better explain its $10.6 million 2026 budget before it agrees to the amount.

MISO said 2025 was the most demanding summer since 2012, though it steered the grid with only a single maximum generation event.

MISO’s generator interconnection queue has fallen to 215 GW as developers cut back on projects in response to the federal phaseout of renewable energy tax incentives, RTO leadership said.

MISO will start evaluating its South region for long-term transmission needs in 2026, beginning with Louisiana, the RTO announced before its Board of Directors.

MISO’s Independent Market Monitor said the recently uncovered, eight-year-old repeat error in the RTO’s capacity market that caused a $280 million impact in this year’s auction alone is unfortunate but insisted the resulting prices were efficient.

MISO said a yearslong software error caused it to clear more capacity than intended in past capacity auctions and which has resulted in an approximate $280 million impact to market participants in this year’s auction.