The 9th U.S. Data Center Power and Capacity Summit is a two-day technical forum for the power and energy procurement leads, grid interconnection teams, site development and permitting executives, and generation and grid-infrastructure providers securing electricity for AI-scale digital infrastructure in the United States. The power problem has changed shape. A decade of data center development assumed utility power was prompt, routine feeds sufficed, and permitting was a formality. AI-scale demand has broken all three assumptions: grid backlogs pushing 70,000 MW in top markets now delay energization by 1.5 to 2 years; behind-the-meter gas, fuel cells, and nuclear have shifted from backup options to default requirements with complex emission and contracting issues; and local government entitlement dates, rather than utility agreements, have become the primary bottleneck for getting projects built. Held in Washington, D.C., at the doorstep of the world's leading primary data center market, it will bring together leading experts and influential voices from across the industry ecosystem for a high-level exchange of insights, ideas, and perspectives shaping the future of data center power.