MISO, SPP consider 500 kV interregional projects to bolster reliability, reduce costs

The Midcontinent Independent System Operator (MISO) and Southwest Power Pool (SPP) are considering two sets of 500 kV transmission projects that would provide reliability, economic and transfer benefits across their southern seam, according to the draft SPP-MISO 2024-25 Coordinated System Plan Study Report presented to the SPP-MISO Interregional Planning Stakeholder Advisory Committee on March 6, 2026. The […]