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March 29, 2026
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SPP RTO Expands into Western Interconnection April 1
SPP's expanded RTO footprint once it adds Western members
SPP's expanded RTO footprint once it adds Western members | SPP
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SPP will complete its third major expansion of its RTO footprint when it begins administering the regional transmission grid under its tariff for several western organizations overnight March 31-April 1.
Energy MarketSPPTransmission Operations