FERC dismissed Ameren’s bid to gain exclusive rights to build nearly $2 billion of MISO regional transmission projects in the state free of competitors.

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 predicts it will have anywhere from 383 GW to 454 GW of installed capacity its footprint by 2045, according to a preliminary version of its 20-year planning futures.

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

At a time when MISO’s long-term planning is under fire, the Organization of MISO States’ annual meeting featured speakers who vouched for the power of planning.

MISO is taking load updates and stakeholder suggestions as part of a pilot program to improve its long-term load forecasting.

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.

MISO has slashed earlier renewable energy estimates and boosted natural gas contributions in its transmission planning futures in a rethink brought on by the Trump administration’s One Big Beautiful Bill Act.

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.

Ameren Illinois remains adamant that it should have exclusive access to construct nearly $2 billion of MISO regional transmission projects in the state without competition.