Born in wind, built for growth​: SPP market report (June 2026)

Our comprehensive analysis of the SPP power market delivers the insights needed to navigate a region undergoing one of its most significant structural transformations. SPP is simultaneously managing rapid demand growth and a historic geographic expansion. Our outlook projects load growth of approximately 3% annually for the next 15 years, driven by data centers, electrification, and large industrial loads, pushing the region toward a planning paradigm increasingly shaped by demand growth and reliability requirements. At the same time, SPP's April 2026 expansion into the Western Interconnection made it the first US RTO to operate across both major interconnections, extending the benefits of nodal pricing and centralized dispatch while increasing exposure to congestion, curtailment, and basis risk. The analysis reflects our 2026 H1 Strategic Planning Outlook, which covers demand, supply, and price forecasts across all major SPP zones.