IREN Sweetwater 1 Data Center Campus

Utility capacity

1,400 MW

Updated

Oct 28, 2026

IREN’s September 8, 2026 update said Sweetwater 1 was conditionally classified as Base Load and described its first 300 MW gross data center development as under construction for delivery in the fourth quarter of 2027. The classification remains conditional; neither it nor the energized bulk substation proves operating AI IT capacity. IREN is developing Sweetwater 1 as the larger anchor of its West Texas AI and compute hub. The 1.4 GW figure is the site power envelope; it is not operating critical IT capacity. IREN is publicly identified in the project record for Sweetwater area, Nolan County area, TX, US. The disclosed development record includes 1,400 MW grid-connected power envelope; more than 1,300 acres across the Sweetwater hub; bulk substation energized in 2026. Power and infrastructure include 345 kV/138 kV bulk substation, primary substations and planned fiber loop to Sweetwater 2. IREN identifies 1,400 MW of secured grid capacity at Sweetwater 1; site delivery remains phased.