MISO South states have signaled their intent to strike out on their own on a cost allocation design for long-range transmission projects located exclusively in the South subregion.

MISO announced it will honor a request from Texas regulators and include southeastern Texas in its first long-range transmission study for MISO South.

MISO’s generator interconnection queue now totals 174 GW across 944 projects, a result of several developers dropping out of the line in recent months.

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.

The MISO Independent Market Monitor called on the RTO to develop a penalty system for generation for underperformance during emergencies.

MISO issued a slew of warning notices and operating instructions — especially in the South region — to help deal with oppressive July heat, forced generation outages and strained transmission.

The Southern Renewable Energy Association appeared before Entergy’s state regulators to urge them to think twice before considering leaving MISO for the Southeast Energy Exchange Market.

MISO will take a breather from its long-range transmission planning over 2025 to retool the 20-year future scenarios that are the foundation of the transmission portfolios.

Clean energy nonprofits continued to try to persuade Entergy and MISO South state commissioners to embrace a broader view of cost allocation for an upcoming long-range transmission portfolio the RTO intends for the subregion.