MISO, SPP Draft New Joint Portfolio that Could Run $3.6B

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MISO and SPP's Core + and Core draft portfolio options | MISO and SPP

Mar 8, 2026 | Amanda Durish Cook

MISO and SPP put forth two potential, 500-kV joint transmission portfolios valued at either $1.3 billion or $3.6 billion to beef up their transfer capability.

MISO SPP Transmission Planning

Keywordscoordinated system plan (CSP)interregional transmission planning Midcontinent Independent System Operator (MISO)Southwest Power Pool (SPP)

Amanda Durish Cook

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