MISO said it managed a milder summer overall compared to previous years, though it weathered two hurricanes and escalated into emergency warnings during a heat wave.

MISO’s quarterly public meetup with its board of directors put on display the unrelenting rift between the RTO’s planners and the Independent Market Monitor over MISO’s $21 billion in long-range transmission planning.

MISO said its second, mostly 765-kV long-range transmission plan will provide the Midwest region with at least a 1.9:1 benefit-cost ratio, a metric that was greeted with skepticism by Independent Market Monitor David Patton.

The Independent Market Monitor has argued energy efficiency can’t participate as a capacity resource because the load reductions already are accounted for in PJM’s load forecast.

The Reserve Certainty Senior Task Force is voting on a PJM proposal to add hourly differentiated notification times to the RTO’s day-ahead energy market.

Consumers and electric distributors in PJM opposed a proposal to revise two financial parameters used to calculate the cost of new entry input to the 2027/28 Base Residual Auction.

The PJM Markets and Reliability Committee voted to eliminate energy efficiency from the capacity construct, adopting a proposal from the Monitor.

The Market Implementation Committee endorsed a PJM proposal to revise how the capacity offered by energy efficiency resources is measured and verified, rejecting competing proposals from EE providers and the Monitor.

MISO’s $25 billion, mostly 765-kV long-range transmission package for the Midwest region is nearing finalization, while the Independent Market Monitor continues to doubt the necessity of the projects.